Sacrificial species approach to designing robust transition metal phosphide cathodes for alkaline water electrolysis in discontinuous operation

The degradation of amorphous cobalt phosphides (CoP x ) as an electrocatalyst for the hydrogen evolution reaction (HER) is studied in the discontinuous operation of alkaline water electrolysis cells (AWEs). Although amorphous CoP x shows a 100-fold enhancement in HER activity over nickel, the kineti...

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Veröffentlicht in:	Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2021-08, Vol.9 (31), p.16713-16724
Hauptverfasser:	Kim, Ik-Sun, Cho, Hyun-Seok, Kim, MinJoong, Oh, Hyun-Jung, Lee, Sang-Yeon, Lee, Yong-Kul, Lee, Changsoo, Lee, Jae Hun, Cho, Won Chul, Kim, Sang-Kyung, Joo, Jong Hoon, Kim, Chang-Hee
Format:	Artikel
Sprache:	eng
Schlagworte:	Alkaline water Cathodes Cathodic protection Cobalt Cobalt oxides Degradation Electrocatalysts Electrode polarization Electrodes Electrolysis Electrolytic cells Hydrogen evolution reactions Nickel Oxidation Phosphides Structural analysis Transition metals X ray absorption
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