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Cobalt Carbide Identified as Catalytic Site for the Dehydrogenation of Ethanol to Acetaldehyde
ACS Catalysis ( IF 11.3 ) Pub Date : 2017-07-11 00:00:00 , DOI: 10.1021/acscatal.7b01348 Alberto Rodriguez-Gomez 1 , Juan Pedro Holgado 1 , Alfonso Caballero 1
ACS Catalysis ( IF 11.3 ) Pub Date : 2017-07-11 00:00:00 , DOI: 10.1021/acscatal.7b01348 Alberto Rodriguez-Gomez 1 , Juan Pedro Holgado 1 , Alfonso Caballero 1
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Two cobalt catalysts, Co/SBA-15 and Co/SiO2, have been studied in steam reforming of ethanol (SRE). Besides the steam reforming products, ethoxide dehydrogenation to acetaldehyde is observed as one of the main reactions. Although by hydrogen treatment cobalt is reduced to the metallic state, under SRE conditions, a phase appears that has been identified as cobalt carbide and correlates with acetaldehyde production. These findings provide insights about the catalytic sites, for SRE, in cobalt catalysts. Comparison with previous results shows that these conclusions are not translatable to other cobalt catalysts, stressing the importance of the support on the catalytic behavior of cobalt.
中文翻译：
碳化钴被确定为乙醇脱氢为乙醛的催化位点
在乙醇的蒸汽重整（SRE）中，已经研究了两种钴催化剂Co / SBA-15和Co / SiO 2。除蒸汽重整产物外，还发现乙醇的脱氢反应生成乙醛是主要反应之一。尽管通过氢处理，钴还原为金属态，但在SRE条件下，出现了一种相，该相已被鉴定为碳化钴，并与乙醛的产生有关。这些发现为钴催化剂中SRE的催化位点提供了见解。与先前结果的比较表明，这些结论不能转化为其他钴催化剂，从而强调了载体对钴催化行为的重要性。
更新日期：2017-07-11
中文翻译：
碳化钴被确定为乙醇脱氢为乙醛的催化位点
在乙醇的蒸汽重整（SRE）中，已经研究了两种钴催化剂Co / SBA-15和Co / SiO 2。除蒸汽重整产物外，还发现乙醇的脱氢反应生成乙醛是主要反应之一。尽管通过氢处理，钴还原为金属态，但在SRE条件下，出现了一种相，该相已被鉴定为碳化钴，并与乙醛的产生有关。这些发现为钴催化剂中SRE的催化位点提供了见解。与先前结果的比较表明，这些结论不能转化为其他钴催化剂，从而强调了载体对钴催化行为的重要性。
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