Loading…

Effect of CNTs length on thermophysical properties of paraffin/CNTs/graphene aerogel nanocomposite as a shape stabilized phase change material

In this work, paraffin/carbon nanotubes/graphene aerogel (Pa/CNTs/GA) nanocomposite with different CNTs lengths were synthesized. CNTs' length was changed by refluxing them in a mixture of acids for different times, by which the initial micrometer length of CNTs was reduced to 1200 and 205 nm a...

Full description

Saved in:
Bibliographic Details
Published in:Diamond and related materials 2024-02, Vol.142, p.110746, Article 110746
Main Authors: Farbod, Mansoor, Mojtahedi, Fateme Sadat, Ahangarpour, Ameneh
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-c309t-710371e1d932159dc63188ff91349fd6d85a7fe409574b743cd39406b397d9c03
cites cdi_FETCH-LOGICAL-c309t-710371e1d932159dc63188ff91349fd6d85a7fe409574b743cd39406b397d9c03
container_end_page
container_issue
container_start_page 110746
container_title Diamond and related materials
container_volume 142
creator Farbod, Mansoor
Mojtahedi, Fateme Sadat
Ahangarpour, Ameneh
description In this work, paraffin/carbon nanotubes/graphene aerogel (Pa/CNTs/GA) nanocomposite with different CNTs lengths were synthesized. CNTs' length was changed by refluxing them in a mixture of acids for different times, by which the initial micrometer length of CNTs was reduced to 1200 and 205 nm after 0.5 and 1 h refluxing. To complete dispersing CNTs in paraffin, they were functionalized for the second time using dodecylamine. By inserting paraffin composites into the aerogel using vacuum impregnation, the thermal conductivity of the aerogel increases greatly. Melting and freezing latent heat of both samples of graphene aerogel composite containing 0.5 and 1 h refluxed CNTs was reduced compared to that of the pure paraffin and Pa/CNTs composite. The specific heat of the Pa/CNTs/GA composite containing 1 h refluxed CNTs was reduced compared to that of the Pa/CNTs (1 h refluxed) composite, but it was increased for the samples containing 0.5 h refluxed CNTs. Also, Pa/ZnO, Pa/TiO2, and Pa/Al2O3 composites were prepared and their thermophysical properties were compared with those of Pa/CNTs composites. [Display omitted] •Pa/CNTs/GA composites with different CNTs lengths were synthesized.•Thermal conductivity of Pa/GA increased up to about 7 times of GA.•Fusion latent heat of Pa/CNTs/GA was reduced comparing with pure paraffin.•Solidifying latent heat of Pa/CNTs/GA was reduced comparing with pure paraffin.•The specific heat of the Pa/CNTs/GA was less than that of the Pa/CNTs.
doi_str_mv 10.1016/j.diamond.2023.110746
format article
fullrecord <record><control><sourceid>elsevier_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1016_j_diamond_2023_110746</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0925963523010713</els_id><sourcerecordid>S0925963523010713</sourcerecordid><originalsourceid>FETCH-LOGICAL-c309t-710371e1d932159dc63188ff91349fd6d85a7fe409574b743cd39406b397d9c03</originalsourceid><addsrcrecordid>eNqFkM1KAzEUhYMoWKuPIOQFpk0m89OsREr9gaKbug63yU0nZSYJySDUh_CZbWn3ri4c7nc4fIQ8cjbjjDfz_cw4GII3s5KVYsY5a6vmikz4opUFY015TSZMlnUhG1Hfkruc94zxUlZ8Qn5X1qIeabB0-bHJtEe_GzsaPB07TEOI3SE7DT2NKURMo8N8-o2QwFrn5ydovksQO_RIAVPYYU89-KDDEEN24zHNFGjuICLNI2xd737Q0NhBRqo78DukA4yYHPT35MZCn_Hhcqfk62W1Wb4V68_X9-XzutCCybFoORMtR26kKHktjW4EXyyslVxU0prGLGpoLVZM1m21bSuhjZAVa7ZCtkZqJqakPvfqFHJOaFVMboB0UJypk1S1Vxep6iRVnaUeuaczh8dx3w6Tytqh12hcOmpUJrh_Gv4A18CE8A</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Effect of CNTs length on thermophysical properties of paraffin/CNTs/graphene aerogel nanocomposite as a shape stabilized phase change material</title><source>Elsevier</source><creator>Farbod, Mansoor ; Mojtahedi, Fateme Sadat ; Ahangarpour, Ameneh</creator><creatorcontrib>Farbod, Mansoor ; Mojtahedi, Fateme Sadat ; Ahangarpour, Ameneh</creatorcontrib><description>In this work, paraffin/carbon nanotubes/graphene aerogel (Pa/CNTs/GA) nanocomposite with different CNTs lengths were synthesized. CNTs' length was changed by refluxing them in a mixture of acids for different times, by which the initial micrometer length of CNTs was reduced to 1200 and 205 nm after 0.5 and 1 h refluxing. To complete dispersing CNTs in paraffin, they were functionalized for the second time using dodecylamine. By inserting paraffin composites into the aerogel using vacuum impregnation, the thermal conductivity of the aerogel increases greatly. Melting and freezing latent heat of both samples of graphene aerogel composite containing 0.5 and 1 h refluxed CNTs was reduced compared to that of the pure paraffin and Pa/CNTs composite. The specific heat of the Pa/CNTs/GA composite containing 1 h refluxed CNTs was reduced compared to that of the Pa/CNTs (1 h refluxed) composite, but it was increased for the samples containing 0.5 h refluxed CNTs. Also, Pa/ZnO, Pa/TiO2, and Pa/Al2O3 composites were prepared and their thermophysical properties were compared with those of Pa/CNTs composites. [Display omitted] •Pa/CNTs/GA composites with different CNTs lengths were synthesized.•Thermal conductivity of Pa/GA increased up to about 7 times of GA.•Fusion latent heat of Pa/CNTs/GA was reduced comparing with pure paraffin.•Solidifying latent heat of Pa/CNTs/GA was reduced comparing with pure paraffin.•The specific heat of the Pa/CNTs/GA was less than that of the Pa/CNTs.</description><identifier>ISSN: 0925-9635</identifier><identifier>EISSN: 1879-0062</identifier><identifier>DOI: 10.1016/j.diamond.2023.110746</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Latent heat ; Pa/GA composite ; Paraffin ; Specific heat ; Thermal conductivity</subject><ispartof>Diamond and related materials, 2024-02, Vol.142, p.110746, Article 110746</ispartof><rights>2023 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c309t-710371e1d932159dc63188ff91349fd6d85a7fe409574b743cd39406b397d9c03</citedby><cites>FETCH-LOGICAL-c309t-710371e1d932159dc63188ff91349fd6d85a7fe409574b743cd39406b397d9c03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Farbod, Mansoor</creatorcontrib><creatorcontrib>Mojtahedi, Fateme Sadat</creatorcontrib><creatorcontrib>Ahangarpour, Ameneh</creatorcontrib><title>Effect of CNTs length on thermophysical properties of paraffin/CNTs/graphene aerogel nanocomposite as a shape stabilized phase change material</title><title>Diamond and related materials</title><description>In this work, paraffin/carbon nanotubes/graphene aerogel (Pa/CNTs/GA) nanocomposite with different CNTs lengths were synthesized. CNTs' length was changed by refluxing them in a mixture of acids for different times, by which the initial micrometer length of CNTs was reduced to 1200 and 205 nm after 0.5 and 1 h refluxing. To complete dispersing CNTs in paraffin, they were functionalized for the second time using dodecylamine. By inserting paraffin composites into the aerogel using vacuum impregnation, the thermal conductivity of the aerogel increases greatly. Melting and freezing latent heat of both samples of graphene aerogel composite containing 0.5 and 1 h refluxed CNTs was reduced compared to that of the pure paraffin and Pa/CNTs composite. The specific heat of the Pa/CNTs/GA composite containing 1 h refluxed CNTs was reduced compared to that of the Pa/CNTs (1 h refluxed) composite, but it was increased for the samples containing 0.5 h refluxed CNTs. Also, Pa/ZnO, Pa/TiO2, and Pa/Al2O3 composites were prepared and their thermophysical properties were compared with those of Pa/CNTs composites. [Display omitted] •Pa/CNTs/GA composites with different CNTs lengths were synthesized.•Thermal conductivity of Pa/GA increased up to about 7 times of GA.•Fusion latent heat of Pa/CNTs/GA was reduced comparing with pure paraffin.•Solidifying latent heat of Pa/CNTs/GA was reduced comparing with pure paraffin.•The specific heat of the Pa/CNTs/GA was less than that of the Pa/CNTs.</description><subject>Latent heat</subject><subject>Pa/GA composite</subject><subject>Paraffin</subject><subject>Specific heat</subject><subject>Thermal conductivity</subject><issn>0925-9635</issn><issn>1879-0062</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNqFkM1KAzEUhYMoWKuPIOQFpk0m89OsREr9gaKbug63yU0nZSYJySDUh_CZbWn3ri4c7nc4fIQ8cjbjjDfz_cw4GII3s5KVYsY5a6vmikz4opUFY015TSZMlnUhG1Hfkruc94zxUlZ8Qn5X1qIeabB0-bHJtEe_GzsaPB07TEOI3SE7DT2NKURMo8N8-o2QwFrn5ydovksQO_RIAVPYYU89-KDDEEN24zHNFGjuICLNI2xd737Q0NhBRqo78DukA4yYHPT35MZCn_Hhcqfk62W1Wb4V68_X9-XzutCCybFoORMtR26kKHktjW4EXyyslVxU0prGLGpoLVZM1m21bSuhjZAVa7ZCtkZqJqakPvfqFHJOaFVMboB0UJypk1S1Vxep6iRVnaUeuaczh8dx3w6Tytqh12hcOmpUJrh_Gv4A18CE8A</recordid><startdate>202402</startdate><enddate>202402</enddate><creator>Farbod, Mansoor</creator><creator>Mojtahedi, Fateme Sadat</creator><creator>Ahangarpour, Ameneh</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>202402</creationdate><title>Effect of CNTs length on thermophysical properties of paraffin/CNTs/graphene aerogel nanocomposite as a shape stabilized phase change material</title><author>Farbod, Mansoor ; Mojtahedi, Fateme Sadat ; Ahangarpour, Ameneh</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c309t-710371e1d932159dc63188ff91349fd6d85a7fe409574b743cd39406b397d9c03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Latent heat</topic><topic>Pa/GA composite</topic><topic>Paraffin</topic><topic>Specific heat</topic><topic>Thermal conductivity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Farbod, Mansoor</creatorcontrib><creatorcontrib>Mojtahedi, Fateme Sadat</creatorcontrib><creatorcontrib>Ahangarpour, Ameneh</creatorcontrib><collection>CrossRef</collection><jtitle>Diamond and related materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Farbod, Mansoor</au><au>Mojtahedi, Fateme Sadat</au><au>Ahangarpour, Ameneh</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of CNTs length on thermophysical properties of paraffin/CNTs/graphene aerogel nanocomposite as a shape stabilized phase change material</atitle><jtitle>Diamond and related materials</jtitle><date>2024-02</date><risdate>2024</risdate><volume>142</volume><spage>110746</spage><pages>110746-</pages><artnum>110746</artnum><issn>0925-9635</issn><eissn>1879-0062</eissn><abstract>In this work, paraffin/carbon nanotubes/graphene aerogel (Pa/CNTs/GA) nanocomposite with different CNTs lengths were synthesized. CNTs' length was changed by refluxing them in a mixture of acids for different times, by which the initial micrometer length of CNTs was reduced to 1200 and 205 nm after 0.5 and 1 h refluxing. To complete dispersing CNTs in paraffin, they were functionalized for the second time using dodecylamine. By inserting paraffin composites into the aerogel using vacuum impregnation, the thermal conductivity of the aerogel increases greatly. Melting and freezing latent heat of both samples of graphene aerogel composite containing 0.5 and 1 h refluxed CNTs was reduced compared to that of the pure paraffin and Pa/CNTs composite. The specific heat of the Pa/CNTs/GA composite containing 1 h refluxed CNTs was reduced compared to that of the Pa/CNTs (1 h refluxed) composite, but it was increased for the samples containing 0.5 h refluxed CNTs. Also, Pa/ZnO, Pa/TiO2, and Pa/Al2O3 composites were prepared and their thermophysical properties were compared with those of Pa/CNTs composites. [Display omitted] •Pa/CNTs/GA composites with different CNTs lengths were synthesized.•Thermal conductivity of Pa/GA increased up to about 7 times of GA.•Fusion latent heat of Pa/CNTs/GA was reduced comparing with pure paraffin.•Solidifying latent heat of Pa/CNTs/GA was reduced comparing with pure paraffin.•The specific heat of the Pa/CNTs/GA was less than that of the Pa/CNTs.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.diamond.2023.110746</doi></addata></record>
fulltext fulltext
identifier ISSN: 0925-9635
ispartof Diamond and related materials, 2024-02, Vol.142, p.110746, Article 110746
issn 0925-9635
1879-0062
language eng
recordid cdi_crossref_primary_10_1016_j_diamond_2023_110746
source Elsevier
subjects Latent heat
Pa/GA composite
Paraffin
Specific heat
Thermal conductivity
title Effect of CNTs length on thermophysical properties of paraffin/CNTs/graphene aerogel nanocomposite as a shape stabilized phase change material
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-27T10%3A12%3A16IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-elsevier_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Effect%20of%20CNTs%20length%20on%20thermophysical%20properties%20of%20paraffin/CNTs/graphene%20aerogel%20nanocomposite%20as%20a%20shape%20stabilized%20phase%20change%20material&rft.jtitle=Diamond%20and%20related%20materials&rft.au=Farbod,%20Mansoor&rft.date=2024-02&rft.volume=142&rft.spage=110746&rft.pages=110746-&rft.artnum=110746&rft.issn=0925-9635&rft.eissn=1879-0062&rft_id=info:doi/10.1016/j.diamond.2023.110746&rft_dat=%3Celsevier_cross%3ES0925963523010713%3C/elsevier_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c309t-710371e1d932159dc63188ff91349fd6d85a7fe409574b743cd39406b397d9c03%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true