Engineering a hollow bowl-like porous carbon-confined Ru-MgO hetero-structured nanopair as a high-performance catalyst for ammonia borane hydrolysis.
Jialei YangZhenyu YangJiafu LiHao GangDonghai MeiDongming YinRuiping DengYifeng ZhuXingyun LiNing WangSameh Mohamed OsmanYamauchi YusukePublished in: Materials horizons (2024)
Exploration of high-performance catalysts holds great importance for on-demand H 2 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.
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