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| 用NH4F络合还原法制备的炭载Pd催化剂对甲酸分解的催化性能和甲酸氧化的电催化性能 | |
| 引用本文： | 沈娟章,唐亚文,陆天虹.用NH4F络合还原法制备的炭载Pd催化剂对甲酸分解的催化性能和甲酸氧化的电催化性能[J].无机化学学报,2012,28(2):326-330. |
| 作者姓名： | 沈娟章 唐亚文 陆天虹 |
| 作者单位： | 1. 江苏省新型动力电池重点实验室,南京师范大学化学与材料科学学院,南京210097;中国林业科学研究院林产化学工业研究所,南京210042 2. 江苏省新型动力电池重点实验室,南京师范大学化学与材料科学学院,南京210097 3. 江苏省新型动力电池重点实验室,南京师范大学化学与材料科学学院,南京210097;中国科学院长春应用化学研究所,长春130022 |
| 基金项目： | 国家自然科学基金，江苏高校优势学科建设工程资助项目 |
| 摘 要： | 直接甲酸燃料电池(DFAFC)的两大问题是炭载Pd(Pd/C)催化剂对甲酸氧化的电催化稳定性不好和Pd催化剂能催化甲酸分解。发现用NH4F络合还原法制备的NH4F修饰Pd/C催化剂对甲酸氧化的电催化活性要比Pd/C催化剂好大约20%,电催化稳定性也要稍优于Pd/C催化剂。在120 s内和30℃下,甲酸在Pd/C催化剂上分解产生38 mL气体,但在NH4F修饰Pd/C催化剂上基本上不分解,因此NH4F修饰主要能抑制Pd催化剂催化分解甲酸的能力,而且又能在一定程度上提高Pd/C催化剂对甲酸氧化的电催化性能。 |
| 关 键 词： | 炭载Pd催化剂 NH4F络合还原法 甲酸氧化 甲酸分解 |
Catalytic Ability for Formic Acid Decomposition and Electrocatalytic Performance for Formic Acid Oxidation of Carbon Supported Pd Catalyst Prepared with NH4F Complexing Reduction Method |
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| SHEN Juan-Zhang,TANG Ya-Wen and LU Tian-Hong.Catalytic Ability for Formic Acid Decomposition and Electrocatalytic Performance for Formic Acid Oxidation of Carbon Supported Pd Catalyst Prepared with NH4F Complexing Reduction Method[J].Chinese Journal of Inorganic Chemistry,2012,28(2):326-330. | |
| Authors: | SHEN Juan-Zhang TANG Ya-Wen and LU Tian-Hong |
| Institution: | Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Material Science, Nanjing Normal University, Nanjing 210097, China; Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing 210042, China,Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Material Science, Nanjing Normal University, Nanjing 210097, China and Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Material Science, Nanjing Normal University, Nanjing 210097, China; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China |
| Abstract: | The poor electrocatalytic stability of the Pd/C catalyst and the catalytic decomposition of formic acid by the Pd/C catalyst are two problems for direct formic acid fuel cell(DFAFC).The results show that the electrocatalytic activity of the NH4F modified Pd/C catalyst prepared with NH4F complexing reduction method for formic acid oxidation is about 20% better than that of the Pd/C catalyst.The electrocatalytic stability of the title catalyst is also better than that of the Pd/C catalyst.Furthermore,formic acid can be decomposed on the Pd/C catalyst to produce 38 mL gas in 120 s at 30 ℃.However,formic acid is almost not decomposed on the NH4F modified Pd/C catalyst.The NH4F modification can mainly inhibit the catalytic ability for the decomposition of formic acid on the Pd/C catalyst.In addition,it can increase in a certain extent the electrocatalytic performance of the Pd/C catalyst for the formic acid oxidation. |
| Keywords: | carbon supported Pd catalyst NH4F complexing reduction method formic acid oxidation decomposition of formic acid |
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