Identifying the electrocatalytic active sites of a Ru-based catalyst with high Faraday efficiency in CO2-saturated media for an aqueous Zn-CO2system

Jeongwon Kim; Yejin Yang; Arim Seong; Hyuk Jun Noh; Changmin Kim; Sangwook Joo; Ara Cho; Linjuan Zhang; Jing Zhou; Jian Qiang Wang; Jeong Woo Han; Javeed Mahmood; Jong Beom Baek; Guntae Kim

doi:10.1039/d0ta03050c

Identifying the electrocatalytic active sites of a Ru-based catalyst with high Faraday efficiency in CO₂-saturated media for an aqueous Zn-CO₂system

Jeongwon Kim, Yejin Yang, Arim Seong, Hyuk Jun Noh, Changmin Kim, Sangwook Joo, Ara Cho, Linjuan Zhang, Jing Zhou, Jian Qiang Wang, Jeong Woo Han, Javeed Mahmood^*, Jong Beom Baek^*, Guntae Kim^*

^*Corresponding author for this work

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

19 Scopus citations

Abstract

Developing a cost-effective, scalable, and efficient electrocatalyst for the hydrogen evolution reaction (HER) is the heart of producing pure hydrogen in practical applications. In this work, a unique approach to allow ruthenium (Ru) nanoparticles on carboxyl-functionalized porous sphere carbon (CF-Ru@PSC) for an aqueous Zn-CO2 system is reported. The CF-Ru@PSC catalyst was produced by inducing additional junction sites between metallic Ru and the carbon substrate for enhanced HER properties under a CO2 saturated condition. The strongly bonded Ru-C caused electron transfer from the bottom side of the metallic Ru to the PSC substrate, leading to efficient hydrogen adsorption energy of the surface. The DFT calculations and XAFS investigation suggested that the reconstructed electronic configuration from the Ru-C linkage acted as an efficient active site for HER. The CF-Ru@PSC electrocatalyst presented a high turnover frequency of 2.70H2 s-1 at an overpotential of 0.20 V in the CO2-saturated condition and high Faraday efficiency (98.2%) over 1000 min in the aqueous Zn-CO2 system.

Original language	English (US)
Pages (from-to)	14927-14934
Number of pages	8
Journal	JOURNAL OF MATERIALS CHEMISTRY A
Volume	8
Issue number	30
DOIs	https://doi.org/10.1039/d0ta03050c
State	Published - Aug 14 2020

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

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

Access to Document

10.1039/d0ta03050c

Cite this

Kim, J., Yang, Y., Seong, A., Noh, H. J., Kim, C., Joo, S., Cho, A., Zhang, L., Zhou, J., Wang, J. Q., Han, J. W., Mahmood, J., Baek, J. B., & Kim, G. (2020). Identifying the electrocatalytic active sites of a Ru-based catalyst with high Faraday efficiency in CO₂-saturated media for an aqueous Zn-CO₂system. JOURNAL OF MATERIALS CHEMISTRY A, 8(30), 14927-14934. https://doi.org/10.1039/d0ta03050c

@article{f436e1d7b45542d2bce14b79f7a0355c,

title = "Identifying the electrocatalytic active sites of a Ru-based catalyst with high Faraday efficiency in CO2-saturated media for an aqueous Zn-CO2system",

abstract = "Developing a cost-effective, scalable, and efficient electrocatalyst for the hydrogen evolution reaction (HER) is the heart of producing pure hydrogen in practical applications. In this work, a unique approach to allow ruthenium (Ru) nanoparticles on carboxyl-functionalized porous sphere carbon (CF-Ru@PSC) for an aqueous Zn-CO2 system is reported. The CF-Ru@PSC catalyst was produced by inducing additional junction sites between metallic Ru and the carbon substrate for enhanced HER properties under a CO2 saturated condition. The strongly bonded Ru-C caused electron transfer from the bottom side of the metallic Ru to the PSC substrate, leading to efficient hydrogen adsorption energy of the surface. The DFT calculations and XAFS investigation suggested that the reconstructed electronic configuration from the Ru-C linkage acted as an efficient active site for HER. The CF-Ru@PSC electrocatalyst presented a high turnover frequency of 2.70H2 s-1 at an overpotential of 0.20 V in the CO2-saturated condition and high Faraday efficiency (98.2%) over 1000 min in the aqueous Zn-CO2 system.",

author = "Jeongwon Kim and Yejin Yang and Arim Seong and Noh, {Hyuk Jun} and Changmin Kim and Sangwook Joo and Ara Cho and Linjuan Zhang and Jing Zhou and Wang, {Jian Qiang} and Han, {Jeong Woo} and Javeed Mahmood and Baek, {Jong Beom} and Guntae Kim",

note = "Funding Information: This research was supported by the Creative Research Initiative (CRI, 2014R1A2069102), BK21 Plus (10Z20130011057), Science Research Center (SRC, 2016R1A5A1009405) and Young Researcher (2019R1C1C1006650) Programs through the National Research Foundation (NRF) of Korea, funded by the Ministry of Science, ICT, and Future Planning. This work was also supported by the Global PhD Fellowship Program through NRF Grant funded by the Korean Government (NRF-2018H1A2A1060644), and the Mid-Career Researcher Program (NRF-2018R1A2A1A05077532) through the National Research Foundation Korea, funded by the Ministry of Science, ICT, and Future Planning. This work was also supported by “Transformational Technologies for Clean Energy and Demonstration”, Strategic Priority Research Program of the Chinese Academy of Sciences, Grant No. XDA21000000; the K. C.Wong Education Foundation, Grant No. GJTD-2018-10, and Youth Innovation Promotion Association (grant no. 2014237), Chinese Academy of Sciences. This work was also supported by the 2020 Research Fund of KOREA East-West Power Co., LTD (EWP) (2.190769.01). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2020",

month = aug,

day = "14",

doi = "10.1039/d0ta03050c",

language = "English (US)",

volume = "8",

pages = "14927--14934",

journal = "JOURNAL OF MATERIALS CHEMISTRY A",

issn = "2050-7488",

publisher = "Royal Society of Chemistry",

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Kim, J, Yang, Y, Seong, A, Noh, HJ, Kim, C, Joo, S, Cho, A, Zhang, L, Zhou, J, Wang, JQ, Han, JW, Mahmood, J, Baek, JB & Kim, G 2020, 'Identifying the electrocatalytic active sites of a Ru-based catalyst with high Faraday efficiency in CO₂-saturated media for an aqueous Zn-CO₂system', JOURNAL OF MATERIALS CHEMISTRY A, vol. 8, no. 30, pp. 14927-14934. https://doi.org/10.1039/d0ta03050c

TY - JOUR

T1 - Identifying the electrocatalytic active sites of a Ru-based catalyst with high Faraday efficiency in CO2-saturated media for an aqueous Zn-CO2system

AU - Kim, Jeongwon

AU - Yang, Yejin

AU - Seong, Arim

AU - Noh, Hyuk Jun

AU - Kim, Changmin

AU - Joo, Sangwook

AU - Cho, Ara

AU - Zhang, Linjuan

AU - Zhou, Jing

AU - Wang, Jian Qiang

AU - Han, Jeong Woo

AU - Mahmood, Javeed

AU - Baek, Jong Beom

AU - Kim, Guntae

N1 - Funding Information: This research was supported by the Creative Research Initiative (CRI, 2014R1A2069102), BK21 Plus (10Z20130011057), Science Research Center (SRC, 2016R1A5A1009405) and Young Researcher (2019R1C1C1006650) Programs through the National Research Foundation (NRF) of Korea, funded by the Ministry of Science, ICT, and Future Planning. This work was also supported by the Global PhD Fellowship Program through NRF Grant funded by the Korean Government (NRF-2018H1A2A1060644), and the Mid-Career Researcher Program (NRF-2018R1A2A1A05077532) through the National Research Foundation Korea, funded by the Ministry of Science, ICT, and Future Planning. This work was also supported by “Transformational Technologies for Clean Energy and Demonstration”, Strategic Priority Research Program of the Chinese Academy of Sciences, Grant No. XDA21000000; the K. C.Wong Education Foundation, Grant No. GJTD-2018-10, and Youth Innovation Promotion Association (grant no. 2014237), Chinese Academy of Sciences. This work was also supported by the 2020 Research Fund of KOREA East-West Power Co., LTD (EWP) (2.190769.01). Publisher Copyright: © The Royal Society of Chemistry.

PY - 2020/8/14

Y1 - 2020/8/14

N2 - Developing a cost-effective, scalable, and efficient electrocatalyst for the hydrogen evolution reaction (HER) is the heart of producing pure hydrogen in practical applications. In this work, a unique approach to allow ruthenium (Ru) nanoparticles on carboxyl-functionalized porous sphere carbon (CF-Ru@PSC) for an aqueous Zn-CO2 system is reported. The CF-Ru@PSC catalyst was produced by inducing additional junction sites between metallic Ru and the carbon substrate for enhanced HER properties under a CO2 saturated condition. The strongly bonded Ru-C caused electron transfer from the bottom side of the metallic Ru to the PSC substrate, leading to efficient hydrogen adsorption energy of the surface. The DFT calculations and XAFS investigation suggested that the reconstructed electronic configuration from the Ru-C linkage acted as an efficient active site for HER. The CF-Ru@PSC electrocatalyst presented a high turnover frequency of 2.70H2 s-1 at an overpotential of 0.20 V in the CO2-saturated condition and high Faraday efficiency (98.2%) over 1000 min in the aqueous Zn-CO2 system.

AB - Developing a cost-effective, scalable, and efficient electrocatalyst for the hydrogen evolution reaction (HER) is the heart of producing pure hydrogen in practical applications. In this work, a unique approach to allow ruthenium (Ru) nanoparticles on carboxyl-functionalized porous sphere carbon (CF-Ru@PSC) for an aqueous Zn-CO2 system is reported. The CF-Ru@PSC catalyst was produced by inducing additional junction sites between metallic Ru and the carbon substrate for enhanced HER properties under a CO2 saturated condition. The strongly bonded Ru-C caused electron transfer from the bottom side of the metallic Ru to the PSC substrate, leading to efficient hydrogen adsorption energy of the surface. The DFT calculations and XAFS investigation suggested that the reconstructed electronic configuration from the Ru-C linkage acted as an efficient active site for HER. The CF-Ru@PSC electrocatalyst presented a high turnover frequency of 2.70H2 s-1 at an overpotential of 0.20 V in the CO2-saturated condition and high Faraday efficiency (98.2%) over 1000 min in the aqueous Zn-CO2 system.

UR - http://www.scopus.com/inward/record.url?scp=85089403782&partnerID=8YFLogxK

U2 - 10.1039/d0ta03050c

DO - 10.1039/d0ta03050c

M3 - Article

AN - SCOPUS:85089403782

SN - 2050-7488

VL - 8

SP - 14927

EP - 14934

JO - JOURNAL OF MATERIALS CHEMISTRY A

JF - JOURNAL OF MATERIALS CHEMISTRY A

IS - 30

ER -