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Exploring the Brønsted acidity of UiO-66 (Zr, Ce, Hf) metal–organic frameworks for efficient solketal synthesis from glycerol acetalization†
Dalton Transactions ( IF 3.5 ) Pub Date : 2018-12-03 00:00:00 , DOI: 10.1039/c8dt03512a
Vasudeva Rao Bakuru 1, 2, 3, 4, 5 , Sathyapal R. Churipard 1, 2, 3, 4 , Sanjeev P. Maradur 1, 2, 3, 4 , Suresh Babu Kalidindi 1, 2, 3, 4
Affiliation  

Zr, Ce, Hf-based isostructural UIO-66 MOFs exhibited varying degree of Brønsted acidity (UiO-66(Hf) > UiO-66(Ce) > UiO-66(Zr)) on their secondary building units owing to the differences in their oxophilicities. UIO-66(Hf) showed remarkable catalytic activity for solketal synthesis with a turnover frequency as high as 13 886 h−1, which is 90 times higher than that of UiO-66(Zr) and several orders of magnitude higher than that of H2SO4 or Zeolites.

中文翻译:

探索UiO-66(Zr,Ce,Hf)金属-有机骨架的布朗斯台德酸度,以实现甘油缩醛化有效的Solketal合成

基于Zr,Ce,Hf的同构UIO-66 MOF在二级建筑单元上表现出不同程度的布朗斯台德酸度(UiO-66(Hf)> UiO-66(Ce)> UiO-66(Zr))他们的亲氧性。UIO-66(Hf)对溶胶合成具有显着的催化活性,周转频率高达13 886 h -1,比UiO-66(Zr)高90倍,比Hi-66(Zr)高几个数量级。2 SO 4或沸石。
更新日期:2018-12-03
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