Fig. 5
From: Niobium pentoxide nanomaterials with distorted structures as efficient acid catalysts
XPS spectra of the niobium oxides synthesized in acetophenone Nb2O5·nH2O. a Nb 3d spectra. b O 1s spectra. c C 1s spectrum of Nb2O5-hGO
Fig. 5 | Communications Chemistry
