甲烷化
催化作用
X射线光电子能谱
反应性(心理学)
化学工程
材料科学
碳纤维
钝化
氧化物
纳米颗粒
二氧化碳
化学
纳米技术
有机化学
冶金
图层(电子)
复合材料
医学
替代医学
病理
复合数
工程类
作者
Tomasz Siudyga,Maciej Kapkowski,Daniel Lach,Piotr Bartczak,Karina Kocot,Izabela Jendrzejewska,Grzegorz Dercz,Maciej Zubko,Katarzyna Balin,Sylwia Golba,B. Tomiczek,Kateřina Pacultová,Jarosław Polański
标识
DOI:10.1016/j.cherd.2023.09.017
摘要
The objective of the present study was to assess the scalability of the methanation nanocatalysis controlled by induction heating. We constructed a library of Ni-scaffolds supporting nano-Pd/Re blends using a nano-transfer method that we developed previously as a way to generate nanoparticles and decorate with them various carriers effective in environmental green chemistry applications. We compared their reactivity with that of powdered systems. Through testing these catalyst systems in low-temperature-IHC CO2 methanation, we discovered that a high CO2 methanation activity was closely associated with the oxide-passivation of the surface structures. Unexpectedly, a comprehensive XPS analysis of the catalyst materials' surfaces unveiled the presence of carbon deposits in both the original metals and the constructed and reacted catalysts, although this phenomenon did not diminish the catalysts' reactivity. Our research indicates that a new platform is coking resistant, while IHC control allows for 58 ℃ reduction in CO2 methanation temperature compared to silica-supported catalysts controlled methanation performed in the preheated gas stream.
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