Hydrogen photochromism in Nb2O5powders Pan, Lei ; Wang, Yi ; Wang, XianJie ; Qu, HuiYing ; Zhao, JiuPeng ; Li, Yao ; Gavrilyuk, Alexander Abstract Publication: Physical Chemistry Chemical Physics (Incorporating Faraday Transactions) Pub Date: 2014 DOI: 10.1039/C4CP02834A Bibcode: 2014PCCP...1620828P