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

Varsha Raj Govindaraju; Muralikirshna Sreeramareddygari; Nagaraju Doddahalli Hanumantharayudu; Samrat Devaramani; Ramakrishnappa Thippeswamy; Werasak Surareungchai

doi:10.1002/ep.13558

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

Varsha Raj Govindaraju
, Muralikirshna Sreeramareddygari
, Nagaraju Doddahalli Hanumantharayudu
, Samrat Devaramani
, Ramakrishnappa Thippeswamy
, Werasak Surareungchai

BMS Institute of Technology and Management
K. Mongkut's Univ. Technol. Thonburi
Jain University
REVA University
RV Institute of Technology and Management

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

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/cm². 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.

Original language	English
Article number	e13558
Journal	Environmental Progress and Sustainable Energy
Volume	40
Issue number	3
DOIs	https://doi.org/10.1002/ep.13558
Publication status	Published - 1 May 2021
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

CuSnS
electrocatalyst
hydrogen evolution reaction
reduced graphene oxide
solvothermal synthesis

Access to Document

10.1002/ep.13558

Cite this

@article{4664606495044d049a0f896387b1b3ab,

title = "Solvothermal decoration of Cu3SnS4 on reduced graphene oxide for enhanced electrocatalytic hydrogen evolution reaction",

abstract = "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/cm2. 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.",

keywords = "CuSnS, electrocatalyst, hydrogen evolution reaction, reduced graphene oxide, solvothermal synthesis",

author = "Govindaraju, \{Varsha Raj\} and Muralikirshna Sreeramareddygari and Hanumantharayudu, \{Nagaraju Doddahalli\} and Samrat Devaramani and Ramakrishnappa Thippeswamy and Werasak Surareungchai",

note = "Publisher Copyright: {\textcopyright} 2020 American Institute of Chemical Engineers",

year = "2021",

month = may,

day = "1",

doi = "10.1002/ep.13558",

language = "English",

volume = "40",

journal = "Environmental Progress and Sustainable Energy",

issn = "1944-7442",

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Solvothermal decoration of Cu₃SnS₄ on reduced graphene oxide for enhanced electrocatalytic hydrogen evolution reaction. / Govindaraju, Varsha Raj; Sreeramareddygari, Muralikirshna; Hanumantharayudu, Nagaraju Doddahalli et al.
In: Environmental Progress and Sustainable Energy, Vol. 40, No. 3, e13558, 01.05.2021.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Solvothermal decoration of Cu3SnS4 on reduced graphene oxide for enhanced electrocatalytic hydrogen evolution reaction

AU - Govindaraju, Varsha Raj

AU - Sreeramareddygari, Muralikirshna

AU - Hanumantharayudu, Nagaraju Doddahalli

AU - Devaramani, Samrat

AU - Thippeswamy, Ramakrishnappa

AU - Surareungchai, Werasak

PY - 2021/5/1

Y1 - 2021/5/1

N2 - 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/cm2. 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.

AB - 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/cm2. 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.

KW - CuSnS

KW - electrocatalyst

KW - hydrogen evolution reaction

KW - reduced graphene oxide

KW - solvothermal synthesis

UR - https://www.scopus.com/pages/publications/85096759187

U2 - 10.1002/ep.13558

DO - 10.1002/ep.13558

M3 - Article

AN - SCOPUS:85096759187

SN - 1944-7442

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JO - Environmental Progress and Sustainable Energy

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