Hierarchical C-MoCSx @MoS2 nanoreactor as a chainmail catalyst for seawater splitting

被引：45

作者：

Li, Yang ^{[1
,2
]}

Zuo, Shouwei ^{[2
]}

Li, Qiaohong ^{[1
]}

Huang, Huawei ^{[2
]}

Wu, Xin ^{[1
]}

Zhang, Jing ^{[3
]}

Zhang, Huabin ^{[2
]}

Zhang, Jian ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

[2] King Abdullah Univ Sci & Technol KAUST, KAUST Catalysis Ctr KCC, Thuwal 239556900, Saudi Arabia

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil BSRF, Beijing 100049, Peoples R China

来源：

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

关键词：

Hybrid zeolitic imidazolate framework; Nanoreactor; Chainmail catalyst; Hydrogen evolution; Seawater splitting; HYDROGEN EVOLUTION; EFFICIENT; MOS2; ELECTROCATALYSTS; NITROGEN; CARBON;

D O I：

10.1016/j.apcatb.2022.121832

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：

Hierarchical structures with a complex interior and a functional exterior are highly advantageous for energy -related electrocatalysis. Herein, a carbon-supported molybdenum carbide/sulfide heterostructure interior is covered with a defect-rich MoS2 nanosheet exterior. The resulting hierarchical structure (C-MoCSx @MoS2) is a promising nanoreactor for seawater splitting. X-ray absorption spectroscopy demonstrates that MoC and MoS(2 )are chemically integrated into the C-MoCSx core, providing abundant C-Mo-S sites for hydrogen evolution. Experimental studies and theoretical calculations show that the defect-rich MoS2 exterior exhibits a high capability for repelling salt deposition, allowing the penetration of low-saline water into the inner C-MoCSx to accelerate the water-splitting reaction. As expected, the obtained C-MoCSx @MoS2 is remarkably active and exceptionally stable in natural seawater. This work opens new avenues for developing effective electrocatalysts for seawater splitting and other energy-related applications.

引用

页数：8

共 47 条

[1] Phosphorous-doped molybdenum disulfide anchored on silicon as an efficient catalyst for photoelectrochemical hydrogen generation [J].