解聚
氢
催化作用
氢溢流
氢气储存
材料科学
化学工程
介孔材料
纳米技术
化学
有机化学
高分子化学
工程类
作者
Qingyun Kang,Xiaofang Zhang,Qianyue Feng,Lin Zhang,Mingyu Chu,Chaoran Li,Panpan Xu,Muhan Cao,Le He,Qiao Zhang,Jinxing Chen
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-04-16
标识
DOI:10.1021/acsnano.4c02062
摘要
Hydro-depolymerization presents a promising avenue for transforming plastic waste into high-value hydrocarbons, offering significant potential for value-added recycling. However, a major challenge in this method arises from kinetic limitations due to insufficient hydrogen concentration near the active sites, requiring optimal catalytic performance only at higher hydrogen pressures. In this study, we address this hurdle by developing "hydrogen bubble catalysts" featuring Ru nanoparticles within mesoporous SBA-15 channels (Ru/SBA). The distinctive feature of Ru/SBA catalysts lies in their capacity for physical hydrogen storage and chemically reversible hydrogen spillover, ensuring a timely and ample hydrogen supply. Under identical reaction conditions, the catalytic activity of Ru/SBA surpassed that of Ru/SiO2 (no hydrogen storage capacity) by over 4-fold. This substantial enhancement in catalytic performance provides significant opportunities for near atmospheric pressure hydro-depolymerization of plastic waste.
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