The effects of impregnation and reduction conditions on the particle size of Pt and structure of Pt/C catalyst were investigated by TEM, XRD and rotating thin-layer electrode techniques. The results showed that reduct...The effects of impregnation and reduction conditions on the particle size of Pt and structure of Pt/C catalyst were investigated by TEM, XRD and rotating thin-layer electrode techniques. The results showed that reductants affected the particle size and crystal face of platinum in the catalyst and Pt/C catalyst prepared from BP-2000 and by using HCHO as reductant showed a good electrocatalytic activity.展开更多
The chain-, tadpole-, and drag-shaped grains in carbonate rocks have resulted from.plastic deformation in response to wave movement or from a combined action of vertical and lateral pressures during the early stage of...The chain-, tadpole-, and drag-shaped grains in carbonate rocks have resulted from.plastic deformation in response to wave movement or from a combined action of vertical and lateral pressures during the early stage of syngenesis-diagenesis.展开更多
文摘The effects of impregnation and reduction conditions on the particle size of Pt and structure of Pt/C catalyst were investigated by TEM, XRD and rotating thin-layer electrode techniques. The results showed that reductants affected the particle size and crystal face of platinum in the catalyst and Pt/C catalyst prepared from BP-2000 and by using HCHO as reductant showed a good electrocatalytic activity.
文摘The chain-, tadpole-, and drag-shaped grains in carbonate rocks have resulted from.plastic deformation in response to wave movement or from a combined action of vertical and lateral pressures during the early stage of syngenesis-diagenesis.
