Boosting the water dissociation kineticsviacharge redistribution of ruthenium decorated on S, N-codoped carbon

Tingya Li; Xueyan Zhang; Yilan Chen; Lixiang Zhong; Shuzhou Li; Peixin Zhang; Chenyang Zhao

doi:10.1039/d1ta04917h

Boosting the water dissociation kineticsviacharge redistribution of ruthenium decorated on S, N-codoped carbon

Tingya Li, Xueyan Zhang, Yilan Chen, Lixiang Zhong, Shuzhou Li, Peixin Zhang^*, Chenyang Zhao

^*Corresponding author for this work

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

22 Citations (Scopus)

Abstract

A simple copolymer template strategy for the synthesis of sulfur and nitrogen co-doped carbon decorated by Ru (Ru-SNC) is reported for the efficient alkaline HER. The Ru-SNC catalyst, with a Ru content of 2.59 wt%, only needs an extremely low overpotential of 14 mV to deliver the benchmark 10 mA cm⁻²in 1 M KOH. Additionally, yielding a hydrogen generation rate that is 15.6 times higher than that of commercial Pt/C at an overpotential of 25 mV places Ru-SNC among the topmost active alkaline HER electrocatalysts. The high activity of Ru-SNC is uncovered by X-ray absorption fine structure spectra and theoretical calculations, revealing a modified surface charge distribution of Ru through Ru-N/S bonds that results in an optimized Ru-H* interaction and a greatly reduced energy barrier for water dissociation. This simple strategy provides new insights into the development of highly efficient alkaline HER catalysts and can be readily extended to the formation of other highly active metal-based electrocatalysts.

Original language	English
Pages (from-to)	16967-16973
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	9
Issue number	31
DOIs	https://doi.org/10.1039/d1ta04917h
Publication status	Published - 21 Aug 2021
Externally published	Yes

UN SDGs

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

Access to Document

10.1039/d1ta04917h

Cite this

@article{c73a523665bf4b13a4a8b9881866d198,

title = "Boosting the water dissociation kineticsviacharge redistribution of ruthenium decorated on S, N-codoped carbon",

abstract = "A simple copolymer template strategy for the synthesis of sulfur and nitrogen co-doped carbon decorated by Ru (Ru-SNC) is reported for the efficient alkaline HER. The Ru-SNC catalyst, with a Ru content of 2.59 wt%, only needs an extremely low overpotential of 14 mV to deliver the benchmark 10 mA cm−2in 1 M KOH. Additionally, yielding a hydrogen generation rate that is 15.6 times higher than that of commercial Pt/C at an overpotential of 25 mV places Ru-SNC among the topmost active alkaline HER electrocatalysts. The high activity of Ru-SNC is uncovered by X-ray absorption fine structure spectra and theoretical calculations, revealing a modified surface charge distribution of Ru through Ru-N/S bonds that results in an optimized Ru-H* interaction and a greatly reduced energy barrier for water dissociation. This simple strategy provides new insights into the development of highly efficient alkaline HER catalysts and can be readily extended to the formation of other highly active metal-based electrocatalysts.",

author = "Tingya Li and Xueyan Zhang and Yilan Chen and Lixiang Zhong and Shuzhou Li and Peixin Zhang and Chenyang Zhao",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2021.",

year = "2021",

month = aug,

day = "21",

doi = "10.1039/d1ta04917h",

language = "English",

volume = "9",

pages = "16967--16973",

journal = "Journal of Materials Chemistry A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

number = "31",

}

TY - JOUR

T1 - Boosting the water dissociation kineticsviacharge redistribution of ruthenium decorated on S, N-codoped carbon

AU - Li, Tingya

AU - Zhang, Xueyan

AU - Chen, Yilan

AU - Zhong, Lixiang

AU - Li, Shuzhou

AU - Zhang, Peixin

AU - Zhao, Chenyang

PY - 2021/8/21

Y1 - 2021/8/21

N2 - A simple copolymer template strategy for the synthesis of sulfur and nitrogen co-doped carbon decorated by Ru (Ru-SNC) is reported for the efficient alkaline HER. The Ru-SNC catalyst, with a Ru content of 2.59 wt%, only needs an extremely low overpotential of 14 mV to deliver the benchmark 10 mA cm−2in 1 M KOH. Additionally, yielding a hydrogen generation rate that is 15.6 times higher than that of commercial Pt/C at an overpotential of 25 mV places Ru-SNC among the topmost active alkaline HER electrocatalysts. The high activity of Ru-SNC is uncovered by X-ray absorption fine structure spectra and theoretical calculations, revealing a modified surface charge distribution of Ru through Ru-N/S bonds that results in an optimized Ru-H* interaction and a greatly reduced energy barrier for water dissociation. This simple strategy provides new insights into the development of highly efficient alkaline HER catalysts and can be readily extended to the formation of other highly active metal-based electrocatalysts.

AB - A simple copolymer template strategy for the synthesis of sulfur and nitrogen co-doped carbon decorated by Ru (Ru-SNC) is reported for the efficient alkaline HER. The Ru-SNC catalyst, with a Ru content of 2.59 wt%, only needs an extremely low overpotential of 14 mV to deliver the benchmark 10 mA cm−2in 1 M KOH. Additionally, yielding a hydrogen generation rate that is 15.6 times higher than that of commercial Pt/C at an overpotential of 25 mV places Ru-SNC among the topmost active alkaline HER electrocatalysts. The high activity of Ru-SNC is uncovered by X-ray absorption fine structure spectra and theoretical calculations, revealing a modified surface charge distribution of Ru through Ru-N/S bonds that results in an optimized Ru-H* interaction and a greatly reduced energy barrier for water dissociation. This simple strategy provides new insights into the development of highly efficient alkaline HER catalysts and can be readily extended to the formation of other highly active metal-based electrocatalysts.

UR - http://www.scopus.com/inward/record.url?scp=85112569744&partnerID=8YFLogxK

U2 - 10.1039/d1ta04917h

DO - 10.1039/d1ta04917h

M3 - Article

AN - SCOPUS:85112569744

SN - 2050-7488

VL - 9

SP - 16967

EP - 16973

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

IS - 31

ER -

Boosting the water dissociation kineticsviacharge redistribution of ruthenium decorated on S, N-codoped carbon

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this