以莲蓬壳(LS)为原料,经水热反应、盐封和碳化活化处理,得到O掺杂的介孔碳材料LSC-s。采用浸渍化学还原法负载PtRu纳米粒子,制得负载型催化剂PtRu/LSC-s。PtRu/LSC-s催化剂用于甲醇电氧化的起始氧化电位为0.29 V,峰电流为798.4 m A/mgPt...以莲蓬壳(LS)为原料,经水热反应、盐封和碳化活化处理,得到O掺杂的介孔碳材料LSC-s。采用浸渍化学还原法负载PtRu纳米粒子,制得负载型催化剂PtRu/LSC-s。PtRu/LSC-s催化剂用于甲醇电氧化的起始氧化电位为0.29 V,峰电流为798.4 m A/mgPt,稳定电流为27.8 m A/mgPt,催化活性优于商业PtRu/C催化剂,还具有抗CO毒性强的优点。展开更多
A number of nanostructured carbon materials were proposed as new effective promoters for preparing modified Cu/ZnO/Al 2O 3 catalyst system for efficient hydrogen production from methanol steam reforming. Compared to t...A number of nanostructured carbon materials were proposed as new effective promoters for preparing modified Cu/ZnO/Al 2O 3 catalyst system for efficient hydrogen production from methanol steam reforming. Compared to the catalysts modified by other type of carbon materials, the ACF-promoted catalyst prepared via carbonate-coprecipitation method exhibit the highest performance in the low-temperature steam reforming of methanol. It was suggested that the intrinsic high surface area nature of ACF material may favor the generation of modified catalysts with a high surface area and improved component dispersion, thus leading to improved performance for methanol steam reforming.展开更多
文摘以莲蓬壳(LS)为原料,经水热反应、盐封和碳化活化处理,得到O掺杂的介孔碳材料LSC-s。采用浸渍化学还原法负载PtRu纳米粒子,制得负载型催化剂PtRu/LSC-s。PtRu/LSC-s催化剂用于甲醇电氧化的起始氧化电位为0.29 V,峰电流为798.4 m A/mgPt,稳定电流为27.8 m A/mgPt,催化活性优于商业PtRu/C催化剂,还具有抗CO毒性强的优点。
文摘A number of nanostructured carbon materials were proposed as new effective promoters for preparing modified Cu/ZnO/Al 2O 3 catalyst system for efficient hydrogen production from methanol steam reforming. Compared to the catalysts modified by other type of carbon materials, the ACF-promoted catalyst prepared via carbonate-coprecipitation method exhibit the highest performance in the low-temperature steam reforming of methanol. It was suggested that the intrinsic high surface area nature of ACF material may favor the generation of modified catalysts with a high surface area and improved component dispersion, thus leading to improved performance for methanol steam reforming.
