Solvothermal decoration of Cu3SnS4 on reduced graphene oxide for enhanced electrocatalytic hydrogen evolution reaction

被引：17
作者：
Govindaraju, Varsha Raj [1 ]
Sreeramareddygari, Muralikirshna [2 ]
Hanumantharayudu, Nagaraju Doddahalli [3 ,4 ]
Devaramani, Samrat [5 ]
Thippeswamy, Ramakrishnappa [1 ]
Surareungchai, Werasak [2 ,6 ,7 ]
机构：
[1] BMS Inst Technol, Dept Chem, Bengaluru 560064, India
[2] King Mongkuts Univ Technol Thonburi, Pilot Plant Dev & Training Inst, Bangkhuntien Chaitalay Rd, Bangkok 10150, Thailand
[3] Jain Univ, Ctr Nano & Mat Sci, Jain Global Campus, Bangalore, Karnataka, India
[4] REVA Univ, Sch Appl Sci, Dept Chem, Bangalore, Karnataka, India
[5] RV Inst Technol & Management, Dept Chem, Bengaluru, India
[6] King Mongkuts Univ Technol Thonburi, Sch Bioresources & Technol, Nanosci & Nanotechnol Grad Programme, Bangkok, Thailand
[7] King Mongkuts Univ Technol Thonburi, Fac Sci, Bangkok, Thailand
来源：
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY | 2021年 / 40卷 / 03期
关键词：
Cu3SnS4; electrocatalyst; hydrogen evolution reaction; reduced graphene oxide; solvothermal synthesis; EFFICIENT; MOS2; NANOSHEETS; MOLYBDENUM; COMPOSITE; SULFIDES; NANOPARTICLES; EQUILIBRIUM; REDUCTION; CATALYSTS;
D O I：
10.1002/ep.13558
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Metal sulphides combined with graphene/reduced graphene oxide (rGO) represent a unique class of materials for hydrogen generation either through electrocatalytic or photo(electro) catalytic methods. Herein, we report a solvothermal synthesis of Cu3SnS4 decorated rGO resulting in a highly active electrocatalyst for hydrogen evolution reaction (HER) compared to its native Cu3SnS4. The Cu3SnS4-rGO exhibited very low overpotential of 190 mV versus reversible hydrogen electrode (RHE), whereas Cu3SnS4 requires 250 mV versus RHE at a current density of 10 mA/cm(2). Tafel slope of Cu3SnS4-rGO and Cu3SnS4 is about 64 and 76 mV/dec, respectively. This suggests that Cu3SnS4-rGO is a better electrocatalyst when compared to Cu3SnS4 and follows mixed Volmer and Heyrovsky mechanism for HER.
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页数：8
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