Volume 62, Issue 21 e202301128
Research Article

Light-driven Orderly Assembly of Ir-atomic Chains to Integrate a Dynamic Reaction Pathway for Acidic Oxygen Evolution

Zuozheng Xu

Zuozheng Xu

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210093 P. R. China

Jiangsu Key Laboratory for Nanotechnology and Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093 P. R. China

These authors contributed equally to this work.

Search for more papers by this author
Liqi Zhou

Liqi Zhou

College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210023 P. R. China

These authors contributed equally to this work.

Search for more papers by this author
Gang Zhou

Corresponding Author

Gang Zhou

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210093 P. R. China

Search for more papers by this author
Shuyi Wu

Shuyi Wu

Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou, 215009 P. R. China

Search for more papers by this author
Peifang Wang

Corresponding Author

Peifang Wang

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210093 P. R. China

Search for more papers by this author
Hao Li

Hao Li

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210093 P. R. China

Search for more papers by this author
Peilin Huang

Peilin Huang

Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing, 210093 P. R. China

Search for more papers by this author
Lizhe Liu

Corresponding Author

Lizhe Liu

Jiangsu Key Laboratory for Nanotechnology and Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093 P. R. China

Search for more papers by this author
First published: 20 March 2023
Citations: 17

Graphical Abstract

Herein, we propose an intriguing light-driven orderly assembly strategy for implanting Ir-chains and clusters onto catalyst surfaces with different order degrees. Interestingly, the dynamic orbital interaction between orderly Ir-atomic chains and clusters can be regulated by balancing the dissolution and redisposition rate. As a result, the activation energy in acidic OER can be effectively reduced by integrating a dynamic reaction pathway.

Abstract

This work suggests an intriguing light-driven atomic assembly proposal to orderly configure the distribution of reactive sites to optimize the spin-entropy-related orbital interaction and charge transfer from electrocatalysts to intermediates. Herein, the introduced fluorine (F) atoms acting as photo-corrosion centres in MnO1.9F0.1 effectively soften the bonding interaction of Mn−O bonds in the IrCl3 solution. Therefore, partial Mn atoms can be successively replaced to form orderly atomic-hybridized catalysts with a spin-related low entropy due to the coexistence of Ir-atomic chains and clusters. The time-related elemental analysis demonstrates that the dynamic dissolution/redeposition of Ir clusters in acidic oxygen evolution leads to a reintegration of the reaction pathway to seek the switchable rate-limiting step with a lower activation energy.

Conflict of interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.