Engineering a hollow bowl-like porous carbon-confined Ru–MgO hetero-structured nanopair as a high-performance catalyst for ammonia borane hydrolysis

Jialei Yang; Zhenyu Yang; Jiafu Li; Hao Gang; Donghai Mei; Dongming Yin; Ruiping Deng; Yifeng Zhu; Xingyun Li; Ning Wang; Sameh M. Osman; Yusuke Yamauchi

doi:10.1039/D3MH01909H

Engineering a hollow bowl-like porous carbon-confined Ru–MgO hetero-structured nanopair as a high-performance catalyst for ammonia borane hydrolysis†

Jialei Yang,‡^a Zhenyu Yang,‡^b Jiafu Li,^a Hao Gang,^a Donghai Mei,

^c Dongming Yin,^d Ruiping Deng,^d Yifeng Zhu,^e Xingyun Li,

*^a Ning Wang,*^a Sameh M. Osman

^f and Yusuke Yamauchi

^ghi

Author affiliations

* Corresponding authors

^a Institute of Materials for Energy and Environment, College of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
E-mail: xingyun_2008@sina.cn, wangning2021@qdu.edu.cn

^b College of Electronics and Information, Qingdao University, Qingdao 266071, China

^c Tianjin Key Laboratory of Green Chemical Engineering Process Engineering, Tiangong University, Tianjin 300387, China

^d State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

^e Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai 200433, China

^f Chemistry Department, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia

^g Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, 464-8603 Nagoya, Japan

^h Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea

ⁱ Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia

Abstract

Exploration of high-performance catalysts holds great importance for on-demand H₂ production from ammonia borane (AB) hydrolysis. In this work, a hollow bowl-like porous carbon-anchored Ru–MgO hetero-structured nano-pair with high-intensity interfaces is made, using a tailored design approach. Consequently, the optimized catalyst shows AB hydrolysis activity with a turnover frequency value of 784 min⁻¹ in aqueous media and 1971 min⁻¹ in alkaline solvent. Robust durability is also achieved, with slight deactivation after a ten-cycle test. Combined experimental and theoretical calculations validate the positive function of the interface between Ru and MgO for facilitating H transfer and boosting water activation, thus leading to improved AB hydrolysis performance. This study could be valuable in guiding the upgradation of Ru catalytic systems, to advance their practical applications.

Materials Horizons

Engineering a hollow bowl-like porous carbon-confined Ru–MgO hetero-structured nanopair as a high-performance catalyst for ammonia borane hydrolysis†

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