Atomic Metal-Support Interaction Enables Reconstruction-Free Dual-Site Electrocatalyst

Sun，Huachuan1; Tung，Ching Wei2; Qiu，Yang3; Zhang，Wei4; Wang，Qi3; Li，Zhishan1; Tang，Jiang1; Chen，Hsiao Chien5; Wang，Chundong1; Chen，Hao Ming2,6

2022-01-26

10.1021/jacs.1c08890

Journal of the American Chemical Society   Impact Factor & Quartile

0002-7863

1520-5126

Real bifunctional electrocatalysts for hydrogen evolution reaction and oxygen evolution reaction have to be the ones that exhibit a steady configuration during/after reaction without irreversible structural transformation or surface reconstruction. Otherwise, they can be termed as "precatalysts"rather than real catalysts. Herein, through a strongly atomic metal-support interaction, single-atom dispersed catalysts decorating atomically dispersed Ru onto a nickel-vanadium layered double hydroxide (LDH) scaffold can exhibit excellent HER and OER activities. Both in situ X-ray absorption spectroscopy and operando Raman spectroscopic investigation clarify that the presence of atomic Ru on the surface of nickel-vanadium LDH is playing an imperative role in stabilizing the dangling bond-rich surface and further leads to a reconstruction-free surface. Through strong metal-support interaction provided by nickel-vanadium LDH, the significant interplay can stabilize the reactive atomic Ru site to reach a small fluctuation in oxidation state toward cathodic HER without reconstruction, while the atomic Ru site can stabilize the Ni site to have a greater structural tolerance toward both the bond constriction and structural distortion caused by oxidizing the Ni site during anodic OER and boost the oxidation state increase in the Ni site that contributes to its superior OER performance. Unlike numerous bifunctional catalysts that have suffered from the structural reconstruction/transformation for adapting the HER/OER cycles, the proposed Ru/Ni3V-LDH is characteristic of steady dual reactive sites with the presence of a strong metal-support interaction (i.e., Ru and Ni sites) for individual catalysis in water splitting and is revealed to be termed as a real bifunctional electrocatalyst.

SCI ; EI

English

NI Journal Papers ; ESI Hot Papers ; ESI Highly Cited Papers ; ESI Highly Cited Papers ; ESI Highly Cited Papers ; ESI Highly Cited Papers ; ESI Highly Cited Papers ; ESI Highly Cited Papers ; ESI Highly Cited Papers ; ESI Highly Cited Papers ; ESI Highly Cited Papers

Others

WOS:000736493300001

20220111430324

Anodic oxidation ; Atoms ; Electrocatalysts ; Scaffolds ; Surface reconstruction ; Vanadium ; Vanadium compounds ; X ray absorption spectroscopy

Construction Equipment:405.1 ; Protection Methods:539.2.1 ; Vanadium and Alloys:543.6 ; Nickel:548.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Atomic and Molecular Physics:931.3

2-s2.0-85122194765

Scopus

1.School of Optical and Electronic Information,Wuhan National Laboratory for Optoelectronics,Optics Valley Laboratory,Huazhong University of Science and Technology,Wuhan,430074,China
2.Department of Chemistry,National Taiwan University,Taipei,10617,Taiwan
3.Pico Center,SUSTech Core Research Facilities,Southern University of Science and Technology,ShenZhen,518055,China
4.Institute for Energy Research,Jiangsu University,Zhenjiang,212013,China
5.Center for Reliability Science and Technologies,Chang Gung University,Taoyuan,333,Taiwan
6.National Synchrotron Radiation Research Center,Hsinchu,30076,Taiwan

Sun，Huachuan,Tung，Ching Wei,Qiu，Yang,et al. Atomic Metal-Support Interaction Enables Reconstruction-Free Dual-Site Electrocatalyst[J]. Journal of the American Chemical Society,2022,144(3):1174-1186.

Sun，Huachuan.,Tung，Ching Wei.,Qiu，Yang.,Zhang，Wei.,Wang，Qi.,...&Chen，Hao Ming.(2022).Atomic Metal-Support Interaction Enables Reconstruction-Free Dual-Site Electrocatalyst.Journal of the American Chemical Society,144(3),1174-1186.

Sun，Huachuan,et al."Atomic Metal-Support Interaction Enables Reconstruction-Free Dual-Site Electrocatalyst".Journal of the American Chemical Society 144.3(2022):1174-1186.