Uniform shape platinum nanocrystals with narrow size distribution and controlled average dimension are successfully embedded in a polymeric matrix and sup-ported on zeolite Beta. The surface structure and reactivity o...Uniform shape platinum nanocrystals with narrow size distribution and controlled average dimension are successfully embedded in a polymeric matrix and sup-ported on zeolite Beta. The surface structure and reactivity of nanometalclusters are investigated by TEM, EXAFS, CO adsorption and methane activation. The results indicate that nanometalparticles in PVP-Pt/Beta materials have high sur-face activity and reactivity to activate methane even at tem-perature of 373K.展开更多
文摘Uniform shape platinum nanocrystals with narrow size distribution and controlled average dimension are successfully embedded in a polymeric matrix and sup-ported on zeolite Beta. The surface structure and reactivity of nanometalclusters are investigated by TEM, EXAFS, CO adsorption and methane activation. The results indicate that nanometalparticles in PVP-Pt/Beta materials have high sur-face activity and reactivity to activate methane even at tem-perature of 373K.