Mo2C Nanoparticles Decorated Graphitic Carbon Sheets: Biopolymer-Derived Solid-State Synthesis and Application as an Efficient Electrocatalyst for Hydrogen Generation

被引：336

作者：

Cui, Wei ^{[1
,2
]}

Cheng, Ningyan ^{[1
,2
]}

Liu, Qian ^{[1
]}

Ge, Chenjiao ^{[1
]}

Asiri, Abdullah M. ^{[3
,4
]}

Sun, Xuping ^{[1
,3
,4
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] King Abdulaziz Univ, Dept Chem, Fac Sci, Jeddah 21589, Saudi Arabia

[4] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, Jeddah 21589, Saudi Arabia

来源：

ACS CATALYSIS | 2014年 / 4卷 / 08期

基金：

中国国家自然科学基金;

关键词：

molybdenum carbide nanoparticles; graphitic carbon sheets; biopolymer; electrocatalysts; hydrogen generation; TRANSITION-METAL CARBIDES; ACTIVE EDGE SITES; MOLYBDENUM SULFIDE; EVOLUTION REACTION; CATALYTIC-ACTIVITY; NANOSHEETS; WATER; H-2; GRAPHENE; OXIDE;

D O I：

10.1021/cs5005294

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：

The present work reports on the preparation of Mo2C nanoparticles decorated graphitic carbon sheets (Mo2C/GCSs) via a biopolymer-derived solid-state reaction between (NH4)(6)Mo7O24 center dot 4H(2)O and sodium alginate at 900 degrees C under Ar. As a novel hydrogen evolution reaction electrocatalytst, the Mo2C/GCSs hybrids exhibit high activity in acidic solutions with an onset potential of 120 mV, a Tafel slope of 62.6 mV dec(-1), and an exchange current density of 12.5 x 10(-3) mA cm(-2). Moreover, such Mo2C/GCSs catalysts also show excellent durability during long-term 3000 cycles.

引用

页码：2658 / 2661

页数：4

共 37 条

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