Ni3N Modified MOF Heterostructure with Tailored Electronic Structure for Efficient Overall Water Splitting

被引：0

作者：

Jia, Hongnan ^{[1
]}

Yao, Na ^{[1
]}

Zhu, Juan ^{[1
]}

Liu, Yujia ^{[1
]}

Lao, Yunhao ^{[1
]}

Cong, Hengjiang ^{[1
]}

Luo, Wei ^{[1
,2
]}

机构：

[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China

[2] Wuhan Univ, Suzhou Inst, Suzhou 215123, Jiangsu, Peoples R China

来源：

CHINESE JOURNAL OF STRUCTURAL CHEMISTRY | 2022年 / 41卷 / 08期

基金：

中国国家自然科学基金;

关键词：

hydrogen evolution reaction; Ni3N; MOF; DFT calculation; water splitting; METAL-ORGANIC FRAMEWORKS; HYDROGEN EVOLUTION; LARGE-SCALE; ELECTROCATALYSTS; OXIDATION; NANOSHEETS; ARRAYS;

D O I：

10.14102/j.cnki.0254-5861.2022-0112

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Exploring bifunctional electrocatalysts with high-efficiency and stability toward overall water splitting is desirable for sustainable energy technologies, yet challenging. Herein, we report the construction of Ni3N on the surface of Ni-MOF-74 through an in-situ nitriding process. The obtained Ni-MOF-74/Ni3N exhibits remarkable HER activity with an overpotential of 73 mV to deliver 10 mA cm(-2). Theoretical calculations and experimental study demonstrate the electron transport between Ni3N and Ni-MOF-74, leading to the improved H2O adsorption, optimized hydrogen adsorption, and increased Had diffusion, which contributes to the enhanced HER performance. Besides, the obtained Ni-MOF-74/Ni3N also possesses outstanding activity toward OER and overall water splitting.

引用

页码：2208031 / 2208036

页数：6

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