Catalytic Effect of Nb2O5 in MgH2-Nb2O5 Ball-Milled Composites

Catalysts

关键词: MgH2;    Nb2O5;    catalytic effect;    ball-milling;   

DOI  :  10.3390/catal2030344

来源: DOAJ

【 摘 要 】

We report a study on the desorption properties, crystallography and chemical state of MgH2 and 1 mol% Nb2O5 ball-milled composites. Desorption temperatures of the composites decreased with increase of ball-milling time. Size of MgH2 crystallites decreased during ball-milling. Reduction of Nb2O5 after ball-milling was confirmed by tracing the chemical state of Nb and was further supported by TEM observation. The reduced phases may act as more effective catalysts improving the desorption properties.

【 授权许可】

Unknown