C.-I. Hong, C.-Y. Peng, Y.-L. Wei, C.-J.G. Jou, I.-W. Sun, H. Paul Wang
National Cheng Kung University, Taiwan
pp. 136 - 138
Keywords: DM, methanol, hydrogen, nanoreactor, Cu-ZnO@C, Cu-ZnO○yC
Decomposition of methanol (DM) to CO and H2 can be catalyzed by Cu-ZnO@C core-shell and Cu-ZnO○yC yolk-shell nanoreactors at 473-573 K. It is found that the reactivity of DM catalyzed by the nanoreactors increases with an increase of the ZnO fractions in Cu-ZnO encapsulated in carbon-shell. The relatively low activation energy (Ea), low reaction temperature, and high yields of H2 in the core-shell or yolk-shell nanoreactors may be associated with the fact of high collision frequency between Cu-ZnO active species and methanol in the confined nanoreactors. By component fitted X-ray absorption near edge structure (XANES), it seems that metallic copper (Cu) plays an important role during DM.