Loading…

Synthesis of flower-like MnO2 nanostructure with freshly prepared Cu particles and electrochemical performance in supercapacitors

Four types of flowerlike manganese dioxide in nano scale was synthesized via a liquid phase method in KMnO4-H2SO4 solution and Cu particles, wherein the effect of Cu particles was investigated in detail. The obtained manganese dioxide powder was characterized by XRD, SEM and TEM, and the supercapaci...

Full description

Saved in:
Bibliographic Details
Published in:PloS one 2022-01, Vol.17 (6), p.e0269086-e0269086
Main Authors: Shen, Lingling, Peng, Linghui, Fu, Runfang, Liu, Zichuan, Jiang, Xuchuan, Wang, Dexi, Kamali, Ali Reza, Shi, Zhongning
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c502t-f7dda763c527af83c1f639533ce5661f8181e58b52155dbb861aea04629c585d3
cites cdi_FETCH-LOGICAL-c502t-f7dda763c527af83c1f639533ce5661f8181e58b52155dbb861aea04629c585d3
container_end_page e0269086
container_issue 6
container_start_page e0269086
container_title PloS one
container_volume 17
creator Shen, Lingling
Peng, Linghui
Fu, Runfang
Liu, Zichuan
Jiang, Xuchuan
Wang, Dexi
Kamali, Ali Reza
Shi, Zhongning
description Four types of flowerlike manganese dioxide in nano scale was synthesized via a liquid phase method in KMnO4-H2SO4 solution and Cu particles, wherein the effect of Cu particles was investigated in detail. The obtained manganese dioxide powder was characterized by XRD, SEM and TEM, and the supercapacity properties of MnO2 electrode materials were measured. The results showed that doping carbon black can benefit to better dispersion of copper particles, resulting in generated smaller size of Cu particles, and the morphology of MnO2 nanoparticles was dominated by that of Cu particles. The study of MnO2 synthesis by different sources of Cu particles showed that the size of MnO2 particles decreased significantly with freshly prepared fine copper powder compared with using commercial Cu powder, and the size of MnO2 particles can be further reduced to 120 nm by prepared Cu particles with smaller size. Therefore, it was suggested that the copper particles served as not only the reductant and but also the nuclei centre for the growth of MnO2 particles in synthesis process MnO2, and that is the reason how copper particles worked on the growth of flower-like MnO2 and electrochemical property. In the part of investigation for electrochemical property, the calculated results of b values indicated that the electrode materials have pseudo capacitance property, and the highest specific capacitance of 197.2 F g-1 at 2 mV s-1 and 148 F/g at 1 A/g were obtained for MCE electrode materials (MnO2 was synthesized with freshly prepared copper particles, where carbon black was used and dispersed in ethanol before preparation of Cu particles). The values of charge transfer resistance in all types of MnO2 materials electrodes were smaller than 0.08 Ω. The cycling retention of MCE material electrode is still kept as 93.8% after 1000 cycles.
doi_str_mv 10.1371/journal.pone.0269086
format article
fullrecord <record><control><sourceid>proquest_doaj_</sourceid><recordid>TN_cdi_doaj_primary_oai_doaj_org_article_24b9496b89d24151a26fa03e9865facd</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><doaj_id>oai_doaj_org_article_24b9496b89d24151a26fa03e9865facd</doaj_id><sourcerecordid>2687691707</sourcerecordid><originalsourceid>FETCH-LOGICAL-c502t-f7dda763c527af83c1f639533ce5661f8181e58b52155dbb861aea04629c585d3</originalsourceid><addsrcrecordid>eNpdkk9v1DAQxSMEoqXwDRCyxIXLLv4TO84FCa2gVCrqAThbE2fc9eK1g5202iPfvFl2W7WcZjR-7yeP5lXVW0aXTDTs4yZNOUJYDiniknLVUq2eVaesFXyhOBXPH_Un1atSNpRKoZV6WZ0IqaSoGTut_v7YxXGNxReSHHEh3WJeBP8byfd4xUmEmMqYJztOGcmtH9fEZSzrsCNDxgEy9mQ1kbkZvQ1YCMSeYEA75mTXuPUWAhkwu5S3EC0SH0mZ5oGFAawfUy6vqxcOQsE3x3pW_fr65efq2-Ly6vxi9flyYSXl48I1fQ-NElbyBpwWljklWimERakUc5pphlJ3kjMp-67TigECrRVvrdSyF2fVxYHbJ9iYIfst5J1J4M2_QcrX5riF4XXX1q3qdNvzmkkGXDmgAlutpAO7Z306sIap22JvMY4ZwhPo05fo1-Y63ZiWKS5kPQM-HAE5_ZmwjGbri8UQIGKaiuGq4Q0VvNGz9P1_0uPl9yrdqJY1tJlV9UFlcyolo3v4DKNmn5d7l9nnxRzzMtvePV7kwXQfEHEHuR3Cgw</addsrcrecordid><sourcetype>Open Website</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2687691707</pqid></control><display><type>article</type><title>Synthesis of flower-like MnO2 nanostructure with freshly prepared Cu particles and electrochemical performance in supercapacitors</title><source>Publicly Available Content Database</source><source>PubMed Central</source><creator>Shen, Lingling ; Peng, Linghui ; Fu, Runfang ; Liu, Zichuan ; Jiang, Xuchuan ; Wang, Dexi ; Kamali, Ali Reza ; Shi, Zhongning</creator><contributor>Ghouri, Zafar</contributor><creatorcontrib>Shen, Lingling ; Peng, Linghui ; Fu, Runfang ; Liu, Zichuan ; Jiang, Xuchuan ; Wang, Dexi ; Kamali, Ali Reza ; Shi, Zhongning ; Ghouri, Zafar</creatorcontrib><description>Four types of flowerlike manganese dioxide in nano scale was synthesized via a liquid phase method in KMnO4-H2SO4 solution and Cu particles, wherein the effect of Cu particles was investigated in detail. The obtained manganese dioxide powder was characterized by XRD, SEM and TEM, and the supercapacity properties of MnO2 electrode materials were measured. The results showed that doping carbon black can benefit to better dispersion of copper particles, resulting in generated smaller size of Cu particles, and the morphology of MnO2 nanoparticles was dominated by that of Cu particles. The study of MnO2 synthesis by different sources of Cu particles showed that the size of MnO2 particles decreased significantly with freshly prepared fine copper powder compared with using commercial Cu powder, and the size of MnO2 particles can be further reduced to 120 nm by prepared Cu particles with smaller size. Therefore, it was suggested that the copper particles served as not only the reductant and but also the nuclei centre for the growth of MnO2 particles in synthesis process MnO2, and that is the reason how copper particles worked on the growth of flower-like MnO2 and electrochemical property. In the part of investigation for electrochemical property, the calculated results of b values indicated that the electrode materials have pseudo capacitance property, and the highest specific capacitance of 197.2 F g-1 at 2 mV s-1 and 148 F/g at 1 A/g were obtained for MCE electrode materials (MnO2 was synthesized with freshly prepared copper particles, where carbon black was used and dispersed in ethanol before preparation of Cu particles). The values of charge transfer resistance in all types of MnO2 materials electrodes were smaller than 0.08 Ω. The cycling retention of MCE material electrode is still kept as 93.8% after 1000 cycles.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0269086</identifier><identifier>PMID: 35653411</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Black carbon ; Capacitance ; Carbon ; Carbon black ; Charge transfer ; Copper ; Electrochemical analysis ; Electrochemistry ; Electrode materials ; Electrodes ; Energy storage ; Engineering and Technology ; Ethanol ; Flowers ; Graphene ; Liquid phases ; Manganese ; Manganese dioxide ; Metal oxides ; Morphology ; Nanocomposites ; Nanomaterials ; Nanoparticles ; Particle size ; Physical Sciences ; Potassium permanganate ; Powder ; Reducing agents ; Research and Analysis Methods ; Sulfuric acid ; Synthesis</subject><ispartof>PloS one, 2022-01, Vol.17 (6), p.e0269086-e0269086</ispartof><rights>2022 Shen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2022 Shen et al 2022 Shen et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c502t-f7dda763c527af83c1f639533ce5661f8181e58b52155dbb861aea04629c585d3</citedby><cites>FETCH-LOGICAL-c502t-f7dda763c527af83c1f639533ce5661f8181e58b52155dbb861aea04629c585d3</cites><orcidid>0000-0002-7116-0592 ; 0000-0002-2849-8547</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2687691707/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2687691707?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25753,27924,27925,37012,37013,44590,53791,53793,75126</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35653411$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Ghouri, Zafar</contributor><creatorcontrib>Shen, Lingling</creatorcontrib><creatorcontrib>Peng, Linghui</creatorcontrib><creatorcontrib>Fu, Runfang</creatorcontrib><creatorcontrib>Liu, Zichuan</creatorcontrib><creatorcontrib>Jiang, Xuchuan</creatorcontrib><creatorcontrib>Wang, Dexi</creatorcontrib><creatorcontrib>Kamali, Ali Reza</creatorcontrib><creatorcontrib>Shi, Zhongning</creatorcontrib><title>Synthesis of flower-like MnO2 nanostructure with freshly prepared Cu particles and electrochemical performance in supercapacitors</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Four types of flowerlike manganese dioxide in nano scale was synthesized via a liquid phase method in KMnO4-H2SO4 solution and Cu particles, wherein the effect of Cu particles was investigated in detail. The obtained manganese dioxide powder was characterized by XRD, SEM and TEM, and the supercapacity properties of MnO2 electrode materials were measured. The results showed that doping carbon black can benefit to better dispersion of copper particles, resulting in generated smaller size of Cu particles, and the morphology of MnO2 nanoparticles was dominated by that of Cu particles. The study of MnO2 synthesis by different sources of Cu particles showed that the size of MnO2 particles decreased significantly with freshly prepared fine copper powder compared with using commercial Cu powder, and the size of MnO2 particles can be further reduced to 120 nm by prepared Cu particles with smaller size. Therefore, it was suggested that the copper particles served as not only the reductant and but also the nuclei centre for the growth of MnO2 particles in synthesis process MnO2, and that is the reason how copper particles worked on the growth of flower-like MnO2 and electrochemical property. In the part of investigation for electrochemical property, the calculated results of b values indicated that the electrode materials have pseudo capacitance property, and the highest specific capacitance of 197.2 F g-1 at 2 mV s-1 and 148 F/g at 1 A/g were obtained for MCE electrode materials (MnO2 was synthesized with freshly prepared copper particles, where carbon black was used and dispersed in ethanol before preparation of Cu particles). The values of charge transfer resistance in all types of MnO2 materials electrodes were smaller than 0.08 Ω. The cycling retention of MCE material electrode is still kept as 93.8% after 1000 cycles.</description><subject>Black carbon</subject><subject>Capacitance</subject><subject>Carbon</subject><subject>Carbon black</subject><subject>Charge transfer</subject><subject>Copper</subject><subject>Electrochemical analysis</subject><subject>Electrochemistry</subject><subject>Electrode materials</subject><subject>Electrodes</subject><subject>Energy storage</subject><subject>Engineering and Technology</subject><subject>Ethanol</subject><subject>Flowers</subject><subject>Graphene</subject><subject>Liquid phases</subject><subject>Manganese</subject><subject>Manganese dioxide</subject><subject>Metal oxides</subject><subject>Morphology</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanoparticles</subject><subject>Particle size</subject><subject>Physical Sciences</subject><subject>Potassium permanganate</subject><subject>Powder</subject><subject>Reducing agents</subject><subject>Research and Analysis Methods</subject><subject>Sulfuric acid</subject><subject>Synthesis</subject><issn>1932-6203</issn><issn>1932-6203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNpdkk9v1DAQxSMEoqXwDRCyxIXLLv4TO84FCa2gVCrqAThbE2fc9eK1g5202iPfvFl2W7WcZjR-7yeP5lXVW0aXTDTs4yZNOUJYDiniknLVUq2eVaesFXyhOBXPH_Un1atSNpRKoZV6WZ0IqaSoGTut_v7YxXGNxReSHHEh3WJeBP8byfd4xUmEmMqYJztOGcmtH9fEZSzrsCNDxgEy9mQ1kbkZvQ1YCMSeYEA75mTXuPUWAhkwu5S3EC0SH0mZ5oGFAawfUy6vqxcOQsE3x3pW_fr65efq2-Ly6vxi9flyYSXl48I1fQ-NElbyBpwWljklWimERakUc5pphlJ3kjMp-67TigECrRVvrdSyF2fVxYHbJ9iYIfst5J1J4M2_QcrX5riF4XXX1q3qdNvzmkkGXDmgAlutpAO7Z306sIap22JvMY4ZwhPo05fo1-Y63ZiWKS5kPQM-HAE5_ZmwjGbri8UQIGKaiuGq4Q0VvNGz9P1_0uPl9yrdqJY1tJlV9UFlcyolo3v4DKNmn5d7l9nnxRzzMtvePV7kwXQfEHEHuR3Cgw</recordid><startdate>20220101</startdate><enddate>20220101</enddate><creator>Shen, Lingling</creator><creator>Peng, Linghui</creator><creator>Fu, Runfang</creator><creator>Liu, Zichuan</creator><creator>Jiang, Xuchuan</creator><creator>Wang, Dexi</creator><creator>Kamali, Ali Reza</creator><creator>Shi, Zhongning</creator><general>Public Library of Science</general><general>Public Library of Science (PLoS)</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QG</scope><scope>7QL</scope><scope>7QO</scope><scope>7RV</scope><scope>7SN</scope><scope>7SS</scope><scope>7T5</scope><scope>7TG</scope><scope>7TM</scope><scope>7U9</scope><scope>7X2</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB.</scope><scope>KB0</scope><scope>KL.</scope><scope>L6V</scope><scope>LK8</scope><scope>M0K</scope><scope>M0S</scope><scope>M1P</scope><scope>M7N</scope><scope>M7P</scope><scope>M7S</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-7116-0592</orcidid><orcidid>https://orcid.org/0000-0002-2849-8547</orcidid></search><sort><creationdate>20220101</creationdate><title>Synthesis of flower-like MnO2 nanostructure with freshly prepared Cu particles and electrochemical performance in supercapacitors</title><author>Shen, Lingling ; Peng, Linghui ; Fu, Runfang ; Liu, Zichuan ; Jiang, Xuchuan ; Wang, Dexi ; Kamali, Ali Reza ; Shi, Zhongning</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c502t-f7dda763c527af83c1f639533ce5661f8181e58b52155dbb861aea04629c585d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Black carbon</topic><topic>Capacitance</topic><topic>Carbon</topic><topic>Carbon black</topic><topic>Charge transfer</topic><topic>Copper</topic><topic>Electrochemical analysis</topic><topic>Electrochemistry</topic><topic>Electrode materials</topic><topic>Electrodes</topic><topic>Energy storage</topic><topic>Engineering and Technology</topic><topic>Ethanol</topic><topic>Flowers</topic><topic>Graphene</topic><topic>Liquid phases</topic><topic>Manganese</topic><topic>Manganese dioxide</topic><topic>Metal oxides</topic><topic>Morphology</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanoparticles</topic><topic>Particle size</topic><topic>Physical Sciences</topic><topic>Potassium permanganate</topic><topic>Powder</topic><topic>Reducing agents</topic><topic>Research and Analysis Methods</topic><topic>Sulfuric acid</topic><topic>Synthesis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Shen, Lingling</creatorcontrib><creatorcontrib>Peng, Linghui</creatorcontrib><creatorcontrib>Fu, Runfang</creatorcontrib><creatorcontrib>Liu, Zichuan</creatorcontrib><creatorcontrib>Jiang, Xuchuan</creatorcontrib><creatorcontrib>Wang, Dexi</creatorcontrib><creatorcontrib>Kamali, Ali Reza</creatorcontrib><creatorcontrib>Shi, Zhongning</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Animal Behavior Abstracts</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Immunology Abstracts</collection><collection>Meteorological &amp; Geoastrophysical Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Agricultural Science Collection</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science &amp; Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>Advanced Technologies &amp; Aerospace Collection</collection><collection>Agricultural &amp; Environmental Science Collection</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Meteorological &amp; Geoastrophysical Abstracts - Academic</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agriculture Science Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>PML(ProQuest Medical Library)</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>Advanced Technologies &amp; Aerospace Database</collection><collection>ProQuest Advanced Technologies &amp; Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shen, Lingling</au><au>Peng, Linghui</au><au>Fu, Runfang</au><au>Liu, Zichuan</au><au>Jiang, Xuchuan</au><au>Wang, Dexi</au><au>Kamali, Ali Reza</au><au>Shi, Zhongning</au><au>Ghouri, Zafar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of flower-like MnO2 nanostructure with freshly prepared Cu particles and electrochemical performance in supercapacitors</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2022-01-01</date><risdate>2022</risdate><volume>17</volume><issue>6</issue><spage>e0269086</spage><epage>e0269086</epage><pages>e0269086-e0269086</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Four types of flowerlike manganese dioxide in nano scale was synthesized via a liquid phase method in KMnO4-H2SO4 solution and Cu particles, wherein the effect of Cu particles was investigated in detail. The obtained manganese dioxide powder was characterized by XRD, SEM and TEM, and the supercapacity properties of MnO2 electrode materials were measured. The results showed that doping carbon black can benefit to better dispersion of copper particles, resulting in generated smaller size of Cu particles, and the morphology of MnO2 nanoparticles was dominated by that of Cu particles. The study of MnO2 synthesis by different sources of Cu particles showed that the size of MnO2 particles decreased significantly with freshly prepared fine copper powder compared with using commercial Cu powder, and the size of MnO2 particles can be further reduced to 120 nm by prepared Cu particles with smaller size. Therefore, it was suggested that the copper particles served as not only the reductant and but also the nuclei centre for the growth of MnO2 particles in synthesis process MnO2, and that is the reason how copper particles worked on the growth of flower-like MnO2 and electrochemical property. In the part of investigation for electrochemical property, the calculated results of b values indicated that the electrode materials have pseudo capacitance property, and the highest specific capacitance of 197.2 F g-1 at 2 mV s-1 and 148 F/g at 1 A/g were obtained for MCE electrode materials (MnO2 was synthesized with freshly prepared copper particles, where carbon black was used and dispersed in ethanol before preparation of Cu particles). The values of charge transfer resistance in all types of MnO2 materials electrodes were smaller than 0.08 Ω. The cycling retention of MCE material electrode is still kept as 93.8% after 1000 cycles.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>35653411</pmid><doi>10.1371/journal.pone.0269086</doi><orcidid>https://orcid.org/0000-0002-7116-0592</orcidid><orcidid>https://orcid.org/0000-0002-2849-8547</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1932-6203
ispartof PloS one, 2022-01, Vol.17 (6), p.e0269086-e0269086
issn 1932-6203
1932-6203
language eng
recordid cdi_doaj_primary_oai_doaj_org_article_24b9496b89d24151a26fa03e9865facd
source Publicly Available Content Database; PubMed Central
subjects Black carbon
Capacitance
Carbon
Carbon black
Charge transfer
Copper
Electrochemical analysis
Electrochemistry
Electrode materials
Electrodes
Energy storage
Engineering and Technology
Ethanol
Flowers
Graphene
Liquid phases
Manganese
Manganese dioxide
Metal oxides
Morphology
Nanocomposites
Nanomaterials
Nanoparticles
Particle size
Physical Sciences
Potassium permanganate
Powder
Reducing agents
Research and Analysis Methods
Sulfuric acid
Synthesis
title Synthesis of flower-like MnO2 nanostructure with freshly prepared Cu particles and electrochemical performance in supercapacitors
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-02T23%3A02%3A25IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_doaj_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Synthesis%20of%20flower-like%20MnO2%20nanostructure%20with%20freshly%20prepared%20Cu%20particles%20and%20electrochemical%20performance%20in%20supercapacitors&rft.jtitle=PloS%20one&rft.au=Shen,%20Lingling&rft.date=2022-01-01&rft.volume=17&rft.issue=6&rft.spage=e0269086&rft.epage=e0269086&rft.pages=e0269086-e0269086&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0269086&rft_dat=%3Cproquest_doaj_%3E2687691707%3C/proquest_doaj_%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c502t-f7dda763c527af83c1f639533ce5661f8181e58b52155dbb861aea04629c585d3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2687691707&rft_id=info:pmid/35653411&rfr_iscdi=true