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Hierarchical carbon-silicon nanowire heterostructures for the hydrogen evolution reaction
Silicon nanowires (SiNWs) opened up exciting possibilities in a variety of research fields due to their unique anisotropic morphologies, facile tuning capabilities, and accessible fabrication methods. The SiNW-based photoelectrochemical (PEC) conversion has recently been known to provide an efficien...
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Published in: | Nanoscale 2018-08, Vol.10 (29), p.13936-13941 |
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container_end_page | 13941 |
container_issue | 29 |
container_start_page | 13936 |
container_title | Nanoscale |
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creator | Moon, Joonhee Sim, Uk Kim, Dong Jin Ahn, Hyo-Yong An, Junghyun Ha, Heonjin Choi, Kyoung Soon Jeon, Cheolho Lee, Jouhahn Nam, Ki Tae Hong, Byung Hee |
description | Silicon nanowires (SiNWs) opened up exciting possibilities in a variety of research fields due to their unique anisotropic morphologies, facile tuning capabilities, and accessible fabrication methods. The SiNW-based photoelectrochemical (PEC) conversion has recently been known to provide an efficiency superior to that of various photo-responsive semiconductor heterostructures. However, a challenge still remains in designing optimum structures to minimize photo-oxidation and photo-corrosion of the Si surface in a liquid electrolyte. Here, we report a simple method to synthesize hierarchically branched carbon nanowires (CNWs) on SiNWs utilizing copper vapor as the catalyst in a chemical vapor deposition (CVD) process, which exhibits outstanding photocatalytic activities for hydrogen generation along with excellent chemical stability against oxidation and corrosion. Thus, we believe that the CNW-SiNW photoelectrodes would provide a new route to developing high-performing cost-effective catalysts essential for advanced energy conversion and storage technologies. |
doi_str_mv | 10.1039/c8nr02262c |
format | article |
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The SiNW-based photoelectrochemical (PEC) conversion has recently been known to provide an efficiency superior to that of various photo-responsive semiconductor heterostructures. However, a challenge still remains in designing optimum structures to minimize photo-oxidation and photo-corrosion of the Si surface in a liquid electrolyte. Here, we report a simple method to synthesize hierarchically branched carbon nanowires (CNWs) on SiNWs utilizing copper vapor as the catalyst in a chemical vapor deposition (CVD) process, which exhibits outstanding photocatalytic activities for hydrogen generation along with excellent chemical stability against oxidation and corrosion. Thus, we believe that the CNW-SiNW photoelectrodes would provide a new route to developing high-performing cost-effective catalysts essential for advanced energy conversion and storage technologies.</description><identifier>ISSN: 2040-3364</identifier><identifier>EISSN: 2040-3372</identifier><identifier>DOI: 10.1039/c8nr02262c</identifier><identifier>PMID: 30020302</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Carbon ; Catalysis ; Catalysts ; Chemical vapor deposition ; Corrosion ; Energy conversion ; Energy storage ; Heterostructures ; Hydrogen evolution reactions ; Hydrogen production ; Hydrogen storage ; Morphology ; Nanowires ; Organic chemistry ; Oxidation ; Silicon</subject><ispartof>Nanoscale, 2018-08, Vol.10 (29), p.13936-13941</ispartof><rights>Copyright Royal Society of Chemistry 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c267t-482fe21aa763a4bc78d4d67bc76718dc2a7cb7cf153c23a38ec3ed76469d61c83</citedby><cites>FETCH-LOGICAL-c267t-482fe21aa763a4bc78d4d67bc76718dc2a7cb7cf153c23a38ec3ed76469d61c83</cites><orcidid>0000-0002-7152-5846 ; 0000-0001-6353-8877 ; 0000-0001-5545-5860 ; 0000-0002-4453-7999 ; 0000-0002-9724-5498 ; 0000-0001-7767-495X ; 0000-0001-7236-133X ; 0000-0003-4330-1375 ; 0000-0001-8355-8875 ; 0000-0003-1904-8904 ; 0000-0002-5897-169X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30020302$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Moon, Joonhee</creatorcontrib><creatorcontrib>Sim, Uk</creatorcontrib><creatorcontrib>Kim, Dong Jin</creatorcontrib><creatorcontrib>Ahn, Hyo-Yong</creatorcontrib><creatorcontrib>An, Junghyun</creatorcontrib><creatorcontrib>Ha, Heonjin</creatorcontrib><creatorcontrib>Choi, Kyoung Soon</creatorcontrib><creatorcontrib>Jeon, Cheolho</creatorcontrib><creatorcontrib>Lee, Jouhahn</creatorcontrib><creatorcontrib>Nam, Ki Tae</creatorcontrib><creatorcontrib>Hong, Byung Hee</creatorcontrib><title>Hierarchical carbon-silicon nanowire heterostructures for the hydrogen evolution reaction</title><title>Nanoscale</title><addtitle>Nanoscale</addtitle><description>Silicon nanowires (SiNWs) opened up exciting possibilities in a variety of research fields due to their unique anisotropic morphologies, facile tuning capabilities, and accessible fabrication methods. 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subjects | Carbon Catalysis Catalysts Chemical vapor deposition Corrosion Energy conversion Energy storage Heterostructures Hydrogen evolution reactions Hydrogen production Hydrogen storage Morphology Nanowires Organic chemistry Oxidation Silicon |
title | Hierarchical carbon-silicon nanowire heterostructures for the hydrogen evolution reaction |
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