Copper dendrite stabilized NiFe(OH)x electrocatalyst for durable alkaline hydrogen evolution over 1000 h

Guangming Shang; Yu Liu; Yajiao Li; Wei Qiao; Chao Wang; Yaru Li; Dongsheng Zhang; Foteini Sapountzi; Yongwang Li; Hans Niemantsverdriet; Mark H Rümmeli; Ren Su

doi:10.1039/d2cc01439d

Copper dendrite stabilized NiFe(OH)_x electrocatalyst for durable alkaline hydrogen evolution over 1000 h

Chem Commun (Camb). 2022 May 17;58(40):6024-6027. doi: 10.1039/d2cc01439d.

Authors

Guangming Shang¹, Yu Liu¹, Yajiao Li¹, Wei Qiao¹, Chao Wang¹, Yaru Li^{2

3}, Dongsheng Zhang¹, Foteini Sapountzi⁴, Yongwang Li^{2

3}, Hans Niemantsverdriet^{2

4}, Mark H Rümmeli¹, Ren Su^{1

2}

Affiliations

¹ Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow University, Suzhou, 215006, China. mhr1@suda.edu.cn.
² SynCat@Beijing, Synfuels China Technology Co. Ltd., Leyuan South Street II, No. 1, Yanqi Economic Development Zone C#, Huairou District, Beijing, 101407, China. suren@suda.edu.cn.
³ State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Taiyuan, 030001, China.
⁴ SynCat@DIFFER, Syngaschem BV, 6336 HH Eindhoven, The Netherlands.

PMID: 35502741
DOI: 10.1039/d2cc01439d

Abstract

Durable Cu/NiFe(OH)_x electrocatalyst was designed for hydrogen evolution reaction in alkaline media. The in situ generated Cu nanodendrites protect the NiFe(OH)_x from being hydrogenated, giving it a > 1000 h lifetime for high-performance water splitting (1.51 V, 10 mA cm^-2 in 1 M KOH) when coupled with a NiFe-layered double hydroxide anode.