Identification of intermediates of a molecular ruthenium catalyst for water oxidation using in situ electrochemical X-ray absorption spectroscopy

Lin Li; Huacai Yan; Fusheng Li; Qingyu Kong; Chunze Yuan; Tsu-Chien Weng

doi:10.1039/d1cp03837k

Identification of intermediates of a molecular ruthenium catalyst for water oxidation using in situ electrochemical X-ray absorption spectroscopy

Phys Chem Chem Phys. 2021 Oct 27;23(41):23961-23966. doi: 10.1039/d1cp03837k.

Authors

Lin Li^{1

2}, Huacai Yan³, Fusheng Li⁴, Qingyu Kong³, Chunze Yuan^{1

2}, Tsu-Chien Weng^{1

2}

Affiliations

¹ School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China. lilin1@shanghaitech.edu.cn.
² Center for Transformative Science, ShanghaiTech University, Shanghai 201210, China.
³ Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin, Gif sur Yvette Cedex BP 48 91192, France.
⁴ State Key Lab of Fine Chemicals, Institute of Artificial Photosynthesis, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), Dalian 116024, China.

PMID: 34661215
DOI: 10.1039/d1cp03837k

Abstract

This is the first study on a Ru(bda) (bda: 2,2'-bipyridine-6,6'-dicarboxylic acid) catalyst in solution using a home-built electrochemical cell, in combination with an energy-dispersive X-ray absorption spectroscopy setup. The oxidation state and coordination number of the catalyst during electrocatalysis could be estimated, while avoiding radiation damage from the X-rays.