Sulfur-Modified Graphitic Carbon Nitride Nanostructures as an Efficient Electrocatalyst for Water Oxidation

Vinayak S. Kale; Uk Sim; Jiwoong Yang; Kyoungsuk Jin; Sue In Chae; Woo Je Chang; Arun Kumar Sinha; Heonjin Ha; Chan Cuk Hwang; Junghyun An; Hyo Ki Hong; Zonghoon Lee; Ki Tae Nam; Taeghwan Hyeon

doi:10.1002/smll.201603893

Sulfur-Modified Graphitic Carbon Nitride Nanostructures as an Efficient Electrocatalyst for Water Oxidation

Vinayak S. Kale, Uk Sim, Jiwoong Yang, Kyoungsuk Jin, Sue In Chae, Woo Je Chang, Arun Kumar Sinha, Heonjin Ha, Chan Cuk Hwang, Junghyun An, Hyo Ki Hong, Zonghoon Lee, Ki Tae Nam, Taeghwan Hyeon

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

57 Citations (Scopus)

Abstract

There is an urgent need to develop metal-free, low cost, durable, and highly efficient catalysts for industrially important oxygen evolution reactions. Inspired by natural geodes, unique melamine nanogeodes are successfully synthesized using hydrothermal process. Sulfur-modified graphitic carbon nitride (S-modified g-CN _x) electrocatalysts are obtained by annealing these melamine nanogeodes in situ with sulfur. The sulfur modification in the g-CN _x structure leads to excellent oxygen evolution reaction activity by lowering the overpotential. Compared with the previously reported nonmetallic systems and well-established metallic catalysts, the S-modified g-CN _x nanostructures show superior performance, requiring a lower overpotential (290 mV) to achieve a current density of 10 mA cm⁻² and a Tafel slope of 120 mV dec⁻¹ with long-term durability of 91.2% retention for 18 h. These inexpensive, environmentally friendly, and easy-to-synthesize catalysts with extraordinary performance will have a high impact in the field of oxygen evolution reaction electrocatalysis.

Original language	English
Article number	1603893
Journal	Small
Volume	13
Issue number	17
DOIs	https://doi.org/10.1002/smll.201603893
Publication status	Published - 2017 May 3
Externally published	Yes

Bibliographical note

Funding Information:
V.S.K. and U.S. contributed equally to this work. The authors acknowledge financial support from the Institute for Basic Science in the Republic of Korea (IBS-R006-D1) (T.H.), the Global Frontier R&D Program on Center for Multiscale Energy System (2011-0031571) funded by the Ministry of Science, ICT & Future, Korea through the Research Institute of Advanced Materials (RIAM) and by KIST Institutional Program (0543-20160004) (K.T.N.), the financial support by the NRF through the SRC Center for Topological Matter (No. 2011-0030787), the experiments at PLS were supported in part by MSIP and POSTECH (C.-C.H.), and the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. 2015R1A2A2A01006992) (Z.L.).

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

electrocatalysis
graphitic carbon nitride
nanostructures
oxygen evolution reaction

ASJC Scopus subject areas

General Chemistry
General Materials Science
Biotechnology
Biomaterials

Access to Document

10.1002/smll.201603893

Cite this

@article{ff69a472c87945bda934e341545ab79b,

title = "Sulfur-Modified Graphitic Carbon Nitride Nanostructures as an Efficient Electrocatalyst for Water Oxidation",

abstract = "There is an urgent need to develop metal-free, low cost, durable, and highly efficient catalysts for industrially important oxygen evolution reactions. Inspired by natural geodes, unique melamine nanogeodes are successfully synthesized using hydrothermal process. Sulfur-modified graphitic carbon nitride (S-modified g-CN x) electrocatalysts are obtained by annealing these melamine nanogeodes in situ with sulfur. The sulfur modification in the g-CN x structure leads to excellent oxygen evolution reaction activity by lowering the overpotential. Compared with the previously reported nonmetallic systems and well-established metallic catalysts, the S-modified g-CN x nanostructures show superior performance, requiring a lower overpotential (290 mV) to achieve a current density of 10 mA cm−2 and a Tafel slope of 120 mV dec−1 with long-term durability of 91.2% retention for 18 h. These inexpensive, environmentally friendly, and easy-to-synthesize catalysts with extraordinary performance will have a high impact in the field of oxygen evolution reaction electrocatalysis.",

keywords = "electrocatalysis, graphitic carbon nitride, nanostructures, oxygen evolution reaction",

author = "Kale, {Vinayak S.} and Uk Sim and Jiwoong Yang and Kyoungsuk Jin and Chae, {Sue In} and Chang, {Woo Je} and Sinha, {Arun Kumar} and Heonjin Ha and Hwang, {Chan Cuk} and Junghyun An and Hong, {Hyo Ki} and Zonghoon Lee and Nam, {Ki Tae} and Taeghwan Hyeon",

note = "Funding Information: V.S.K. and U.S. contributed equally to this work. The authors acknowledge financial support from the Institute for Basic Science in the Republic of Korea (IBS-R006-D1) (T.H.), the Global Frontier R&D Program on Center for Multiscale Energy System (2011-0031571) funded by the Ministry of Science, ICT & Future, Korea through the Research Institute of Advanced Materials (RIAM) and by KIST Institutional Program (0543-20160004) (K.T.N.), the financial support by the NRF through the SRC Center for Topological Matter (No. 2011-0030787), the experiments at PLS were supported in part by MSIP and POSTECH (C.-C.H.), and the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. 2015R1A2A2A01006992) (Z.L.). Publisher Copyright: {\textcopyright} 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2017",

month = may,

day = "3",

doi = "10.1002/smll.201603893",

language = "English",

volume = "13",

journal = "Small",

issn = "1613-6810",

publisher = "Wiley-VCH Verlag",

number = "17",

}

TY - JOUR

T1 - Sulfur-Modified Graphitic Carbon Nitride Nanostructures as an Efficient Electrocatalyst for Water Oxidation

AU - Kale, Vinayak S.

AU - Sim, Uk

AU - Yang, Jiwoong

AU - Jin, Kyoungsuk

AU - Chae, Sue In

AU - Chang, Woo Je

AU - Sinha, Arun Kumar

AU - Ha, Heonjin

AU - Hwang, Chan Cuk

AU - An, Junghyun

AU - Hong, Hyo Ki

AU - Lee, Zonghoon

AU - Nam, Ki Tae

AU - Hyeon, Taeghwan

N1 - Funding Information: V.S.K. and U.S. contributed equally to this work. The authors acknowledge financial support from the Institute for Basic Science in the Republic of Korea (IBS-R006-D1) (T.H.), the Global Frontier R&D Program on Center for Multiscale Energy System (2011-0031571) funded by the Ministry of Science, ICT & Future, Korea through the Research Institute of Advanced Materials (RIAM) and by KIST Institutional Program (0543-20160004) (K.T.N.), the financial support by the NRF through the SRC Center for Topological Matter (No. 2011-0030787), the experiments at PLS were supported in part by MSIP and POSTECH (C.-C.H.), and the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (No. 2015R1A2A2A01006992) (Z.L.). Publisher Copyright: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2017/5/3

Y1 - 2017/5/3

N2 - There is an urgent need to develop metal-free, low cost, durable, and highly efficient catalysts for industrially important oxygen evolution reactions. Inspired by natural geodes, unique melamine nanogeodes are successfully synthesized using hydrothermal process. Sulfur-modified graphitic carbon nitride (S-modified g-CN x) electrocatalysts are obtained by annealing these melamine nanogeodes in situ with sulfur. The sulfur modification in the g-CN x structure leads to excellent oxygen evolution reaction activity by lowering the overpotential. Compared with the previously reported nonmetallic systems and well-established metallic catalysts, the S-modified g-CN x nanostructures show superior performance, requiring a lower overpotential (290 mV) to achieve a current density of 10 mA cm−2 and a Tafel slope of 120 mV dec−1 with long-term durability of 91.2% retention for 18 h. These inexpensive, environmentally friendly, and easy-to-synthesize catalysts with extraordinary performance will have a high impact in the field of oxygen evolution reaction electrocatalysis.

AB - There is an urgent need to develop metal-free, low cost, durable, and highly efficient catalysts for industrially important oxygen evolution reactions. Inspired by natural geodes, unique melamine nanogeodes are successfully synthesized using hydrothermal process. Sulfur-modified graphitic carbon nitride (S-modified g-CN x) electrocatalysts are obtained by annealing these melamine nanogeodes in situ with sulfur. The sulfur modification in the g-CN x structure leads to excellent oxygen evolution reaction activity by lowering the overpotential. Compared with the previously reported nonmetallic systems and well-established metallic catalysts, the S-modified g-CN x nanostructures show superior performance, requiring a lower overpotential (290 mV) to achieve a current density of 10 mA cm−2 and a Tafel slope of 120 mV dec−1 with long-term durability of 91.2% retention for 18 h. These inexpensive, environmentally friendly, and easy-to-synthesize catalysts with extraordinary performance will have a high impact in the field of oxygen evolution reaction electrocatalysis.

KW - electrocatalysis

KW - graphitic carbon nitride

KW - nanostructures

KW - oxygen evolution reaction

UR - http://www.scopus.com/inward/record.url?scp=85013449870&partnerID=8YFLogxK

U2 - 10.1002/smll.201603893

DO - 10.1002/smll.201603893

M3 - Article

C2 - 28218825

AN - SCOPUS:85013449870

SN - 1613-6810

VL - 13

JO - Small

JF - Small

IS - 17

M1 - 1603893

ER -

Sulfur-Modified Graphitic Carbon Nitride Nanostructures as an Efficient Electrocatalyst for Water Oxidation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this