A CoFe 2 Alloy‐Functionalized Few‐Layer Graphene Sheet Nanocomposite as an Electrocatalyst of the Oxygen Reduction Reaction
Searching for a high‐efficiency, recycled and cheap catalytic material for oxygen reduction reaction (ORR) is urgently needed in fuel cells. In this study, we successfully fabricated a nanocomposite consisting of CoFe 2 alloy functionalized few‐layer graphene sheets (CoFe 2 /FLGs) by employing ferri...
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| Veröffentlicht in: | ChemistrySelect (Weinheim) 2023-09, Vol.8 (33) |
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| creator | Guo, Xiqiong Yuan, Fangying Wang, Peixi Li, Runqiu Zheng, Hui |
| description | Searching for a high‐efficiency, recycled and cheap catalytic material for oxygen reduction reaction (ORR) is urgently needed in fuel cells. In this study, we successfully fabricated a nanocomposite consisting of CoFe
2
alloy functionalized few‐layer graphene sheets (CoFe
2
/FLGs) by employing ferric nitrate, cobalt nitrate, and glucose as precursors. Various measurements conducted in this research confirm that the nanosized CoFe
2
alloy particles are evenly dispersed within the FLGs and possess significant magnetism. Electrochemical measurements reveal that the CoFe
2
/FLGs exhibit a high positive onset potential (0.901 V), follow a four‐electron pathway, display a low Tafel slope (77.21 mV/dec), possess a low charge‐transfer resistance (∼72 Ω), and exhibit strong methanol tolerance. Consequently, the resulting CoFe
2
/FLGs nanocomposite demonstrates excellent electrocatalytic performance and recyclability for the ORR, positioning it as a promising catalyst for fuel cells. |
| doi_str_mv | 10.1002/slct.202301789 |
| format | Article |
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2
alloy functionalized few‐layer graphene sheets (CoFe
2
/FLGs) by employing ferric nitrate, cobalt nitrate, and glucose as precursors. Various measurements conducted in this research confirm that the nanosized CoFe
2
alloy particles are evenly dispersed within the FLGs and possess significant magnetism. Electrochemical measurements reveal that the CoFe
2
/FLGs exhibit a high positive onset potential (0.901 V), follow a four‐electron pathway, display a low Tafel slope (77.21 mV/dec), possess a low charge‐transfer resistance (∼72 Ω), and exhibit strong methanol tolerance. Consequently, the resulting CoFe
2
/FLGs nanocomposite demonstrates excellent electrocatalytic performance and recyclability for the ORR, positioning it as a promising catalyst for fuel cells.</description><identifier>ISSN: 2365-6549</identifier><identifier>EISSN: 2365-6549</identifier><identifier>DOI: 10.1002/slct.202301789</identifier><language>eng</language><ispartof>ChemistrySelect (Weinheim), 2023-09, Vol.8 (33)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c849-b161a7368ab82e30e0505de18003109d0f8dbfa2ea56375a2418672c2a1ea3e33</citedby><cites>FETCH-LOGICAL-c849-b161a7368ab82e30e0505de18003109d0f8dbfa2ea56375a2418672c2a1ea3e33</cites><orcidid>0000-0002-5128-6606</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,782,786,27931,27932</link.rule.ids></links><search><creatorcontrib>Guo, Xiqiong</creatorcontrib><creatorcontrib>Yuan, Fangying</creatorcontrib><creatorcontrib>Wang, Peixi</creatorcontrib><creatorcontrib>Li, Runqiu</creatorcontrib><creatorcontrib>Zheng, Hui</creatorcontrib><title>A CoFe 2 Alloy‐Functionalized Few‐Layer Graphene Sheet Nanocomposite as an Electrocatalyst of the Oxygen Reduction Reaction</title><title>ChemistrySelect (Weinheim)</title><description>Searching for a high‐efficiency, recycled and cheap catalytic material for oxygen reduction reaction (ORR) is urgently needed in fuel cells. In this study, we successfully fabricated a nanocomposite consisting of CoFe
2
alloy functionalized few‐layer graphene sheets (CoFe
2
/FLGs) by employing ferric nitrate, cobalt nitrate, and glucose as precursors. Various measurements conducted in this research confirm that the nanosized CoFe
2
alloy particles are evenly dispersed within the FLGs and possess significant magnetism. Electrochemical measurements reveal that the CoFe
2
/FLGs exhibit a high positive onset potential (0.901 V), follow a four‐electron pathway, display a low Tafel slope (77.21 mV/dec), possess a low charge‐transfer resistance (∼72 Ω), and exhibit strong methanol tolerance. Consequently, the resulting CoFe
2
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2
alloy functionalized few‐layer graphene sheets (CoFe
2
/FLGs) by employing ferric nitrate, cobalt nitrate, and glucose as precursors. Various measurements conducted in this research confirm that the nanosized CoFe
2
alloy particles are evenly dispersed within the FLGs and possess significant magnetism. Electrochemical measurements reveal that the CoFe
2
/FLGs exhibit a high positive onset potential (0.901 V), follow a four‐electron pathway, display a low Tafel slope (77.21 mV/dec), possess a low charge‐transfer resistance (∼72 Ω), and exhibit strong methanol tolerance. Consequently, the resulting CoFe
2
/FLGs nanocomposite demonstrates excellent electrocatalytic performance and recyclability for the ORR, positioning it as a promising catalyst for fuel cells.</abstract><doi>10.1002/slct.202301789</doi><orcidid>https://orcid.org/0000-0002-5128-6606</orcidid></addata></record> |
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| title | A CoFe 2 Alloy‐Functionalized Few‐Layer Graphene Sheet Nanocomposite as an Electrocatalyst of the Oxygen Reduction Reaction |
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