Issue

Vol. 16 (2024)

Exploring the Roles of Single Atom in Hydrogen Peroxide Photosynthesis

https://doi.org/10.1007/s40820-023-01231-1
Kelin He
International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518000, China
Zimo Huang
Queensland Micro‑ and Nanotechnology Centre, School of Environment and Science, Griffith University, Nathan, QLD 4222, Australia
Chao Chen
International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518000, China
Chuntian Qiu
ZJU‑Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
Yu Lin Zhong
Queensland Micro‑ and Nanotechnology Centre, School of Environment and Science, Griffith University, Nathan, QLD 4222, Australia
Qitao Zhang
International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518000, China

Corresponding Author: Yu Lin Zhong

y.zhong@griffith.edu.au

Nano-Micro Letters, Vol. 16 (2024), Article Number: 23

Abstract

This comprehensive review provides a deep exploration of the unique roles of single atom catalysts (SACs) in photocatalytic hydrogen peroxide (H2O2) production. SACs offer multiple benefits over traditional catalysts such as improved efficiency, selectivity, and flexibility due to their distinct electronic structure and unique properties. The review discusses the critical elements in the design of SACs, including the choice of metal atom, host material, and coordination environment, and how these elements impact the catalytic activity. The role of single atoms in photocatalytic H2O2 production is also analysed, focusing on enhancing light absorption and charge generation, improving the migration and separation of charge carriers, and lowering the energy barrier of adsorption and activation of reactants. Despite these advantages, several challenges, including H2O2 decomposition, stability of SACs, unclear mechanism, and low selectivity, need to be overcome. Looking towards the future, the review suggests promising research directions such as direct utilization of H2O2, high-throughput synthesis and screening, the creation of dual active sites, and employing density functional theory for investigating the mechanisms of SACs in H2O2 photosynthesis. This review provides valuable insights into the potential of single atom catalysts for advancing the field of photocatalytic H2O2 production.


Highlights:
1 The review explores single atom catalysts (SACs) for photocatalytic H2O2 production, highlighting their unique structure, properties, and advantages over traditional catalysts. It emphasizes the importance of metal atom types, host material selection, and coordination environment in SACs design.
2 The article explains how SACs enhance photocatalytic H2O2 production by improving light absorption, charge generation, migration, and lowering energy barriers for reactant adsorption and activation.
3 The review acknowledges challenges and future research directions in SACs for H2O2 photosynthesis.

Keywords

Single atom catalysts H2O2 photosynthesis Catalyst design and optimization
He, Kelin, Zimo Huang, Chao Chen, Chuntian Qiu, Yu Lin Zhong, and Qitao Zhang. 2023. “Exploring the Roles of Single Atom in Hydrogen Peroxide Photosynthesis”. Nano-Micro Letters 16 (November):23. https://doi.org/10.1007/s40820-023-01231-1.
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