Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and Engineering, Jilin University, Changchun 130022, China.
Sci Rep. 2012;2:598. doi: 10.1038/srep00598. Epub 2012 Aug 23.
A highly efficient hydrogen generation from formic acid/sodium formate aqueous solution catalyzed by in situ synthesized Pd/C with citric acid has been successfully achieved at room temperature. Interestingly, the presence of citric acid during the formation and growth of the Pd nanoparticles on carbon can drastically enhance the catalytic property of the resulted Pd/C, on which the conversion and turnover frequency for decomposition of formic acid/sodium formate system can reach the highest values ever reported of 85% within 160 min and 64 mol H(2) mol(-1) catalyst h(-1), respectively, at room temperature. The present simple, low cost, but highly efficient CO-free hydrogen generation system at room temperature is believed to greatly promote the practical application of formic acid system on fuel cells.
在室温条件下，通过柠檬酸原位合成的 Pd/C 高效催化甲酸/甲酸钠水溶液制氢取得了成功。有趣的是，柠檬酸的存在会极大地增强 Pd/C 的催化性能，在形成和生长碳负载的纳米 Pd 过程中起着关键作用。甲酸/甲酸钠体系的转化率和周转频率分别达到了 85%和 64 mol H(2) mol(-1)催化剂 h(-1)，这是迄今为止报道的室温条件下的最高值。这种简单、低成本但高效的无 CO 室温产氢体系，有望极大地推动甲酸体系在燃料电池中的实际应用。
