摘要
采用熔体快淬结合去合金化法制备了钯锰纳米多孔材料(NP-PdMn)。用X射线衍射(XRD)、X射线光电子能谱分析(XPS)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)对材料进行了表征,并研究了其在碱性条件下对乙醇氧化的电催化活性。表征显示,NP-Pd Mn为具有三维双连续纳米多孔结构的棒状材料;锰取代了晶格中部分钯的位置使得晶面间距变小;部分钯和锰在材料表面以氧化态存在。催化性能分析表明,与商业Pd/C相比,NP-PdMn/C催化剂具有优于商业Pd/C的催化活性和稳定性。
Palladium-manganese nanoporous(NP-PdMn)material was prepared by the combination of melt spinning and dealloying techniques,and charaterized by X-ray diffraction(XRD),X-ray photoelectron spectroscopy analysis(XPS),scanning electron microscope(SEM)and transmission electron microscopy(TEM).The lectrocatalytic performance of the material for ethanol oxidation was tested under the alkaline conditions.The characterization results shows that NP-PdMn is a rod-like material with three-dimensional double continuous nanoporous structure.Manganese replaces the position of partial palladium in the lattice,making the crystal spacing smaller.Some Pd and Mn exist in oxidation state on the surface of the material.Compared with the commercial Pd/C,NP-PdMn/C catalyst has better catalytic activity and stability.
作者
陈继云
方晓婷
韩光捷
梅玲
崔荣静
韩志达
CHEN Jiyun;FANG Xiaoting;HAN Guangjie;MEI Ling;CUI Rongjing;HAN Zhida(Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology, Changshu 215500, Jiangsu, China;China University of Mining and Technology, Xuzhou 221116, Jiangsu, China;College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050000, China)
出处
《贵金属》
CAS
CSCD
北大核心
2017年第3期20-27,共8页
Precious Metals
基金
国家自然科学基金(51371004)
