近环境温度下金基催化剂上的甲酸脱氢反应
Formic acid dehydrogenation on au-based catalysts at near-ambient temperatures.
作者信息
Ojeda Manuel, Iglesia Enrique
机构信息
Department of Chemical Engineering, University of California at Berkeley, Berkeley, CA 94720, USA.
出版信息
Angew Chem Int Ed Engl. 2009;48(26):4800-3. doi: 10.1002/anie.200805723.
PMID:19479912
Abstract
Selective HCOOH decomposition to H(2)/CO(2) on Au: Au species catalyze HCOOH dehydrogenation at higher rates than on Pt, previously considered the most active metal. Dehydrogenation occurs through formate decomposition limited by H(2) desorption on Au species undetectable by TEM. CO did not form (<10 ppm), making products suitable for low-temperature fuel cells.
摘要
在金上选择性地将甲酸分解为氢气/二氧化碳：金物种催化甲酸脱氢的速率高于此前被认为是最活泼金属的铂。脱氢通过甲酸根分解发生，其受限于在透射电子显微镜下无法检测到的金物种上的氢气解吸。未形成一氧化碳（<10 ppm），使得产物适用于低温燃料电池。
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