Metal-organic-framework derived controllable synthesis of mesoporous copper-cerium oxide composite catalysts for the preferential oxidation of carbon monoxide
Metal-organic-framework derived controllable synthesis of mesoporous copper-cerium oxide composite catalysts for the preferential oxidation of carbon monoxide
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金属有机骨架可控合成介孔铜-氧化铈复合催化剂用于一氧化碳的优先氧化
DOI：
10.1016/j.fuel.2018.04.071
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发表时间：
2018-10
期刊：
影响因子：
7.4
通讯作者：
Zhang Jun
中科院分区：
文献类型：
--
作者：
Gong Xia;Wang Wei Wei;Fu Xin Pu;Wei Shuai;Yu Wen Zhu;Liu Baocang;Jia Chun Jiang;Zhang Jun
在目前研究的催化剂中，CuO-CeO2基材料最有希望实现CO的优先氧化（CO-PROX）。最近，许多努力集中在开发从金属有机框架（MOF）继承的原始纳米结构，它们被认为是获得具有独特结构的金属氧化物（或金属）纳米颗粒的优异牺牲模板或前体。在本文中，我们使用高温处理后的 CuxCe1−x-BTC MOF 衍生的有效且通用的策略合成了 CuO-CeO2 催化剂。所制备的 CuO-CeO2 催化剂根据不同的 Cu/Ce 比例和煅烧温度而表现出不同的形貌、晶体结构和比表面积。催化性能表明，所有由CuxCe1−x-BTC MOFs经热处理衍生的CuO-CeO2复合催化剂对CO-PROX反应均表现出优异的催化性能，并且Cu0.3Ce0.7O2是在650℃高温煅烧4h下获得的最活跃的催化剂，这表明Cu含量的增加和高温处理可以产生更高度分散的CuO团簇，这有利于CO-PROX反应。同时，原位DRIFTS结果表明，Cu0.3Ce0.7O2催化剂表现出超强的CO吸附能力，导致CO-PROX反应的催化性能存在差异。
Among currently studied catalysts, CuO-CeO2based materials hold the greatest promise for the preferential oxidation of CO (CO-PROX). Recently, many efforts have been concentrated on developing the original nanostructures inherited from metal-organic-frameworks (MOFs), which are considered to be excellent sacrificial templates or precursors to achieve metal oxide (or metal) nanoparticles with unique structure. In this paper, we synthesized CuO-CeO2catalysts using an efficient and general strategy derived from CuxCe1−x-BTC MOFs after high temperature treatment. The as-prepared CuO-CeO2catalysts display variable morphologies, crystal structures, and specific surface areas based on different ratios of Cu/Ce and calcination temperature. The catalytic performance shows that all CuO-CeO2composite catalysts derived from the CuxCe1−x-BTC MOFs via heat treatment exhibit excellent catalytic performance for the CO-PROX reaction, and the Cu0.3Ce0.7O2is the most active catalyst obtained under high calcination temperature at 650 °C for 4 h, demonstrating that the increase of Cu content and high temperature treatment can create more highly dispersed CuO clusters, which is in favor of the CO-PROX reaction. Meanwhile, thein-situDRIFTS results show that the Cu0.3Ce0.7O2catalyst displays the super CO adsorption capability, which induces the difference of catalytic performance for the CO-PROX reaction.
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影响因子：
22.1
作者：
Gu, Dong;Jia, Chun-Jiang;Schueth, Ferdi
通讯作者：
Schueth, Ferdi
影响因子：
7.3
作者：
Jochen A. H. Dreyer;Henrike K. Grossmann;Jinfan Chen;T. Grieb;Bill Gong;P. Sit;L. Mädler;W. Y. Teoh
通讯作者：
Jochen A. H. Dreyer;Henrike K. Grossmann;Jinfan Chen;T. Grieb;Bill Gong;P. Sit;L. Mädler;W. Y. Teoh
影响因子：
12.9
作者：
Feng Wang;R. Büchel;A. Savitsky;Michal Zalibera;D. Widmann;S. Pratsinis;W. Lubitz;F. Schüth
通讯作者：
Feng Wang;R. Büchel;A. Savitsky;Michal Zalibera;D. Widmann;S. Pratsinis;W. Lubitz;F. Schüth
影响因子：
7.5
作者：
Lijuan Yang;Shu-Yang Zhou;T. Ding;M. Meng
通讯作者：
Lijuan Yang;Shu-Yang Zhou;T. Ding;M. Meng
影响因子：
3.9
作者：
J. A. Cecilia;A. Arango-Díaz;J. Marrero-Jerez;P. Núñez;E. Moretti;L. Storaro;E. Rodriguez-castellon
通讯作者：
J. A. Cecilia;A. Arango-Díaz;J. Marrero-Jerez;P. Núñez;E. Moretti;L. Storaro;E. Rodriguez-castellon