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Sökning: (L773:2041 1723 OR L773:2041 1723) lar1:(ltu) > (2021) > Boride-derived oxyg...

Boride-derived oxygen-evolution catalysts

Wang, Ning (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China; Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
Xu, Aoni (författare)
Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
Ou, Pengfei (författare)
Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
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Hung, Sung-Fu (författare)
Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan, ROC
Ozden, Adnan (författare)
Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, Ontario, M5S 3G8, Canada
Lu, Ying-Rui (författare)
National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan, ROC
Abed, Jehad (författare)
Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
Wang, Ziyun (författare)
Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
Yan, Yu (författare)
Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
Sun, Meng-Jia (författare)
Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
Xia, Yujian (författare)
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123, China
Han, Mei (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
Han, Jingrui (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
Yao, Kaili (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
Wu, Feng-Yi (författare)
Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan, ROC
Chen, Pei-Hsuan (författare)
Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan, ROC
Vomiero, Alberto (författare)
Luleå tekniska universitet,Materialvetenskap,Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, 30172, Venezia Mestre, Italy
Seifitokaldani, Ali (författare)
Department of Chemical Engineering, McGill University, Montreal, Quebec, H3A 0C5, Canada
Sun, Xuhui (författare)
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Materials and Devices, Soochow University, Suzhou, Jiangsu, 215123, China
Sinton, David (författare)
Department of Applied Chemistry, National Chiao Tung University, Hsinchu, 300, Taiwan, ROC
Liu, Yongchang (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
Sargent, Edward H. (författare)
Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
Liang, Hongyan (författare)
School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
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 (creator_code:org_t)
2021-10-19
2021
Engelska.
Ingår i: Nature Communications. - : Springer Nature. - 2041-1723. ; 12
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Metal borides/borates have been considered promising as oxygen evolution reaction catalysts; however, to date, there is a dearth of evidence of long-term stability at practical current densities. Here we report a phase composition modulation approach to fabricate effective borides/borates-based catalysts. We find that metal borides in-situ formed metal borates are responsible for their high activity. This knowledge prompts us to synthesize NiFe-Boride, and to use it as a templating precursor to form an active NiFe-Borate catalyst. This boride-derived oxide catalyzes oxygen evolution with an overpotential of 167 mV at 10 mA/cm2 in 1 M KOH electrolyte and requires a record-low overpotential of 460 mV to maintain water splitting performance for over 400 h at current density of 1 A/cm2. We couple the catalyst with CO reduction in an alkaline membrane electrode assembly electrolyser, reporting stable C2H4 electrosynthesis at current density 200 mA/cm2 for over 80 h.

Ämnesord

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

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Experimentell fysik
Experimental Physics

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