Synergistic interface engineering and structural optimization of non-noble metal telluride-nitride electrocatalysts for sustainably overall seawater electrolysis

被引：96

作者：

Li, Ruopeng ^{[1
]}

Li, Yaqiang ^{[1
]}

Yang, Peixia ^{[1
]}

Ren, Penghui ^{[1
]}

Wang, Dan ^{[2
]}

Lu, Xiangyu ^{[1
]}

Xu, Ruoyu ^{[3
]}

Li, Yaohua ^{[4
]}

Xue, Junmin ^{[5
]}

Zhang, Jinqiu ^{[1
]}

An, Maozhong ^{[1
]}

Ma, Jingyuan ^{[6
]}

Wang, Bo ^{[1
]}

Liu, Huakun ^{[7
]}

Dou, Shixue ^{[7
]}

机构：

[1] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers &, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China

[2] Changzhou Univ, Sch Petrochem Engn, Jiangsu Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Jiangsu, Peoples R China

[3] UCL, Dept Chem Engn, Torrington Pl, London WC1E 6BT, England

[4] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[5] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore

[6] Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Lab SSRF, Shanghai Synchrotron Radiat Facil,ZJLab, Shanghai, Peoples R China

[7] Univ Wollongong, Inst Superconducting & Elect Mat, Australian Inst Innovat Mat, Wollongong, NSW 2500, Australia

来源：

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY | 2022年 / 318卷

基金：

澳大利亚研究理事会; 中国国家自然科学基金;

关键词：

Nanostructured optimization; Heterostructure synergy; Solar and wind-driven; Alkaline seawater electrolysis; Hydrogen evolution; HYDROGEN-PRODUCTION; RECENT PROGRESS; NICKEL FOAM; EFFICIENT; EVOLUTION; REDUCTION; MECHANISM; ALKALINE; ENERGY;

D O I：

10.1016/j.apcatb.2022.121834

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Searching for ideal candidates with high electrocatalytic performance for both HER and OER is a major objective to realize the large-scale H-2 production by seawater electrolysis. Herein, we report delicate, heterostructured NiTe-NiCoN and NiTe-NiFeN electrocatalysts, which exhibit outstanding HER and OER performance, respectively. Impressively, the NiTe-NiCoN || NiTe-NiFeN couples in alkaline seawater solution delivered 400 mA cm(-2) at 1.84 V along with long-term stability. Further analysis has revealed that not only heterogeneous interface engineering ensures exposure of abundant active sites and faster electron-mass transfer, but also induces electron modulation that optimizes the absorption/desorption for the reaction intermediates to enhanced the intrinsic activity. Notably, a high electric field intensity generated by the nanosheet-nanorod structure induces a local "hydroxide enrichment " environment that promotes the OER kinetics. This work shed lights on these novel heterostructured electrocatalysts with strong synergy, while demonstrating the key role of the unique nano-structures in high-efficiency seawater electrolysis.

引用

页数：12

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