DataVXAdvanced Functional MaterialsPaper
journal article·2024-07

Oxygen Atom Coordinative Position Inducing Catalytic Sites Structure Reconstruction for Enhanced Photocatalytic H2 Evolution

Weiying Pang, Xu Du, Yuting Yang, Chang Long, Yutong Li, Canyu Hu, Ruohang Xu, Meng Tian, Jiaojiao Xie, Wenjing Wang, Jun Guo, Baohui Li, Pan Zhang, Dong Fu, Kun Zhao

Advanced Functional Materials· Volume 34· Issue 29
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Source abstract

Abstract

Abstract Oxygen‐inducing controllable surface reconstruction on the transition metal‐based (TMB) materials surface has a great impact on catalytic performance. However, regulating the oxygen coordinative position during the active sites reconstructive process is challenging and poorly understood. Here, the metastable isomeric catalytic site is reasonably designed and fabricated for enhancing photocatalytic hydrogen evolution. Due to the controlled coordinative position of the oxygen atom, a new ternary catalytic site Co‐P(‐‐O) is created, improving the photocatalytic performance of H2 evolution toward 20.7 mmol g−1 in 6 h and 0.56% apparent quantum efficiency. The reconstruction method not only changes the electronic state around the catalytic site but also tunes the adsorption energy of the hydrogen atom. Compared with Co‐Co, Co‐P, Co‐O, and O‐Co‐P catalytic sites, the remarkable Co‐P(‐‐O) sites would drive the H‐atom connecting with the Co‐P bridge style achieving the best performance and excellent stability. Such a reconstructed catalytic site is also proved efficient in electrocatalysis and photo‐electrocatalysis systems. In conclusion, this work provides a new insight that the controllable isomeric catalytic site reconstruction strategy can dramatically enhance the catalytic performance.
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Research context

Catalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Electrocatalysts for Energy Conversion · Copper-based nanomaterials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Hebei Key Lab of Power Plant Flue Gas Multi‐Pollutants Control School of Environmental Science and Engineering North China Electric Power University Baoding 071003 China

Molecular Electrochemistry Laboratory Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China Chengdu 610054 China

Hefei National Laboratory for Physical Sciences at the Microscale Collaborative Innovative Center of Chemistry for Energy Materials School of Chemistry and Materials Science University of Science and Technology of China Hefei Anhui 230026 China

School of Physics and BUAA‐UOW Joint Research Centre Beihang University Beijing 100191 China

Interdisciplinary Center for Fundamental and Frontier Sciences Nanjing University of Science and Technology Nanjing Jiangsu 210000 China

School of Life Sciences Institute of Life Sciences and Green Development Hebei University Baoding 071002 China

State Key Laboratory of Separation Membranes and Membrane Processes & School of Chemistry Tiangong University Tianjin 300387 China

Funding

Natural Science Foundation of Hebei Province · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China

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