高等学校化学学报Issue(1)：115-120,6.DOI:10.7503/cjcu20130469
磷钨酸修饰活性炭载Pd催化剂的制备及对甲酸氧化的电催化性能
Preparation of Phosphotungstic Acid-modified Carbon Supported Pd Catalyst and Its Electrocatalytic Performance for Formic Acid Oxidation
摘要
Abstract
Activated carbon was modified with phosphotungstic acid( PWA) at 80 ℃ in a water bath, Pd was then loaded on the PWA/C hybrid support to prepare Pd-PWA/C catalyst by a simple impregnation-reduction method. The measurements of energy dispersive X-ray spectroscopy( EDS) , X-ray diffraction( XRD) pattern, transmission electron microscopy(TEM) and X-ray photoelectron spectroscopy(XPS) indicate that phospho-tungstic acid-modified carbon not only decreases the average size of Pd nanoparticles effectively but also interacts with Pd nanoparticles strongly. The electrochemical measurements demonstrate that the electrocataly-tic activity and stability of the Pd-PWA/C catalyst for formic acid oxidation are much better than that of the Pd/C catalyst. It is due to that the strong interaction between Pd and PWA/C not only decreases the adsorp-tion strength and amount of CO at the catalyst electrode but also decreases the decomposition rate of formic acid to decrease the CO poisoning.关键词
钯催化剂/磷钨酸/甲酸氧化/甲酸分解Key words
Pd catalyst/Phosphotungstic acid/Formic acid oxidation/Decomposition of formic acid分类
化学化工引用本文复制引用
陆亮,陈婷婷,葛存旺,唐亚文,陈煜,陆天虹..磷钨酸修饰活性炭载Pd催化剂的制备及对甲酸氧化的电催化性能[J].高等学校化学学报,2014,(1):115-120,6.基金项目
国家自然科学基金(批准号:21073094,21273116,21201105,61171015)和江苏高校优势学科建设工程项目资助.@@@@Supported by the National Natural Science Foundation of China(Nos.21073094,21273116,21201105,61171015) and Project Funded by the Priority Academic Program Develyment of Jiangsu Higher Education Institutions （批准号:21073094,21273116,21201105,61171015）
