Mesoporous carbon spheres with programmable interiors as efficient nanoreactors for H2O2 electrosynthesis

Qiang Tian, Lingyan Jing (), Hongnan Du, Yunchao Yin, Xiaolei Cheng, Jiaxin Xu, Junyu Chen, Zhuoxin Liu, Jiayu Wan, Jian Liu and Jinlong Yang ()
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Qiang Tian: Shenzhen University
Lingyan Jing: Shenzhen University
Hongnan Du: Chinese Academy of Sciences
Yunchao Yin: Shenzhen University
Xiaolei Cheng: Shenzhen University
Jiaxin Xu: Shenzhen University
Junyu Chen: Shenzhen University
Zhuoxin Liu: Shenzhen University
Jiayu Wan: Shanghai Jiaotong University
Jian Liu: Chinese Academy of Sciences
Jinlong Yang: Shenzhen University

Nature Communications, 2024, vol. 15, issue 1, 1-14

Abstract: Abstract The nanoreactor holds great promise as it emulates the natural processes of living organisms to facilitate chemical reactions, offering immense potential in catalytic energy conversion owing to its unique structural functionality. Here, we propose the utilization of precisely engineered carbon spheres as building blocks, integrating micromechanics and controllable synthesis to explore their catalytic functionalities in two-electron oxygen reduction reactions. After conducting rigorous experiments and simulations, we present compelling evidence for the enhanced mass transfer and microenvironment modulation effects offered by these mesoporous hollow carbon spheres, particularly when possessing a suitably sized hollow architecture. Impressively, the pivotal achievement lies in the successful screening of a potent, selective, and durable two-electron oxygen reduction reaction catalyst for the direct synthesis of medical-grade hydrogen peroxide disinfectant. Serving as an exemplary demonstration of nanoreactor engineering in catalyst screening, this work highlights the immense potential of various well-designed carbon-based nanoreactors in extensive applications.

Date: 2024
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DOI: 10.1038/s41467-024-45243-w

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