首页|Enhancement of catalytic activity for hydrogenation of nitroaromatic by anionic metal-organic framework

Enhancement of catalytic activity for hydrogenation of nitroaromatic by anionic metal-organic framework

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Nitroaromatic hydrogenation catalysis without precious metals remains a longstanding challenge.The rate of electron transfer is the crucial factor affecting hydrogenation catalysis.Herein,an ionic Cd-based metal-organic framework(I-Cd-MOF)exhibiting a unique structure with one-dimensional(1D)open-ing nanochannels and good electron transfer ability was synthesized for catalyzing hydrogenation of 4-nitrophenol(4-NP).The catalytic activity of the unique I-Cd-MOF without noble metals is detected,which is higher than most reported noble metal catalysts.Remarkably,the reaction rate of I-Cd-MOF(4.28 min-1)is about 47.6 times higher than that of the Cd-based neutral MOF(N-Cd-MOF)with the similar crystalline structure.Liquid chromatograph mass spectrometer(LC-MS)and theoretical results demonstrate that 4-NP and five intermediates are stabilized in the channels of I-Cd-MOF,which increases the possibility of contact with H*and H2 generated at the Cd sites.The I-Cd-MOF was extended to other nitroaromatic hydrogenation catalysis,which still displays excellent activity.More importantly,the I-MOF@Filter membrane was successfully constructed for continuous hydrogenation catalytic reactions,which maintains a high catalytic performance after 7 cycles of recycling without washing.This work fills in the application of the I-MOFs in hydrogenation catalytic reactions and provides an effective way for the rapid and green degradation of nitroaromatic compounds.

AnionsMetal-organic frameworksCatalysisElectron transferHydrogen production

Qi Wu、Anyang Li、Ruibo He、Yaxi Wu、Lei Hou、Guoping Yang、Wenyan Zhang、Yao-Yu Wang

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Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education,College of Chemistry & Materials Science,Northwest University,Xi'an 710127,China

国家自然科学基金陕西省自然科学基金Shaanxi Science and Technology DepartmentShaanxi Science and Technology DepartmentShaanxi Science and Technology DepartmentShaanxi Science and Technology Department

215310072019JM-5902022GY-3842022JBGS2-072021LLRH-05-212022QFY06-06

2024

10.1016/j.cclet.2023.108639

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(3)
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