Co-doped cryptomelane-type manganese oxide in situ grown on a nickel foam substrate for high humidity ozone decomposition
作者:
Liang, Haoyuan;Wang, Xu;Wang, Hui;Qu, Zhenping
通讯作者:
Zhenping Qu
作者机构:
Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
通讯机构:
Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
语种:
英文
期刊:
环境科学学报(英文版)
ISSN:
1001-0742
年:
2025
卷:
148
期:
2
页码:
529-540
基金类别:
This work was supported by the National Natural Science Foundation of China (Nos. 21876019 and 22276022 ) and the National Key Research and Development Program of China (No. 2019YFC1903903 ).
摘要:
Monolithic catalysts with excellent O 3 catalytic decomposition performance were prepared by in situ loading of Co-doped KMn 8 O 16 on the surface of nickel foam. The triple-layer structure with Co-doped KMn 8 O 16 /Ni 6 MnO 8 /Ni foam was grown spontaneously on the surface of nickel foam by tuning the molar ratio of KMnO 4 to Co(NO 3 ) 2 ·6H 2 O precursors. Importantly, the formed Ni 6 MnO 8 structure between KMn 8 O 16 and nickel foam during in situ synthesis process effectively protected nickel foam from further etching, which significantly enhanced the reaction stability of catalyst. The optimum amount of Co doping in KMn 8 O 16 was available when the molar ratio of ...