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Stabilizing a Vanadium Oxide Catalyst by Supporting on a Metal–Organic Framework
ChemCatChem ( IF 4.5 ) Pub Date : 2018-02-05 , DOI: 10.1002/cctc.201701658
Yuexing Cui 1 , Martino Rimoldi 1 , Ana E. Platero‐Prats 2 , Karena W. Chapman 2 , Joseph T. Hupp 1 , Omar K. Farha 1, 3
Affiliation  

NU‐1000 is a robust and highly porous Zr‐based metal–organic framework (Zr‐MOFs) that has been proven to be an excellent catalyst support because of its well‐defined crystal structure, protonic grafting sites on its nodes, and thermal stability, all of which advantageously offer the possibility to study the nature of the catalytic reactive sites. Herein, we present a vanadium‐oxide catalyst supported on NU‐1000 synthesized by solvothermal deposition in MOFs (SIM), namely, V‐NU‐1000. The catalytic activity of V‐NU‐1000 was investigated by studying the oxidation of 4‐methoxybenzyl alcohol under an O2 atmosphere; this catalyst showed higher conversion and higher selectivity than vanadium‐oxide supported on high‐surface‐area zirconia (V‐ZrO2). The stability of V‐NU‐1000 was confirmed by recyclability and leaching tests, in which recycled V‐NU‐1000 had catalytic ability comparable to that of the fresh catalyst, and no loss in the metal loading was found in recollected V‐NU‐1000.

中文翻译:

通过在金属-有机骨架上负载来稳定氧化钒催化剂

NU-1000是一种坚固且高度多孔的Zr基金属-有机骨架(Zr-MOF),由于其明确的晶体结构,结点上的质子接枝位点以及热稳定性,已被证明是出色的催化剂载体。 ,所有这些都有利地提供了研究催化反应部位的性质的可能性。在本文中,我们介绍了在MOF(SIM)中通过溶剂热沉积合成的NU-1000上负载的钒氧化物催化剂,即V-NU-1000。通过研究O 2气氛下4-甲氧基苄醇的氧化,研究了V-NU-1000的催化活性。该催化剂比高表面积氧化锆(V-ZrO 2上负载的钒氧化物)具有更高的转化率和更高的选择性)。V-NU-1000的稳定性通过可回收性和浸出试验得到了证实,其中回收的V-NU-1000具有与新鲜催化剂相当的催化能力,并且在回收的V-NU-中没有发现金属负载的损失。 1000。
更新日期:2018-02-05
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