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journal article·2025-05Open access

Linker‐Functionalized Zr‐Based UiO‐66 Metal‐Organic Frameworks: Tuning Acidity for Enhanced Catalytic Dimerization of Cyclohexanone

Muhammad Kashif Majeed, Arshad Hussain, Muhammad Akram, Muhammad Umar Majeed, Muhammad Arshad, Adil Saleem, Rashid Iqbal

ChemNanoMat· Volume 11· Issue 5
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Source abstract

Abstract

The precise manipulation of pore structure, organic linkers, and disposition of active and coactive sites in metal‐organic frameworks (MOFs)‐based materials allows the designing of materials with tailored catalytic properties. However, studies that address their kinetic, dynamic, and mechanistic roles in target reactions are scarce. The development of a new functionalization method to introduce acidity into MOFs is established for heterogeneous catalysis. Exploring the effect of ligand functionalization in MOF type UiO‐66(Zr) impacts its ability to catalyze the dimerization reaction of cyclohexanone. Upon treatment with a series of linkers and the addition of HCl, chemically stable MOF structures such as UiO‐66 can be protonated, resulting in an acidic group attached to aromatic terephthalate linkers in the structure. A general synthetic strategy has been developed to produce functionalized UiO‐66‐FG compounds [FG = NH 2 , NO 2 , Br, OH, and (OH) 2 ]. The functionalized acidic frameworks present enhanced catalytic activity toward the self‐condensation of cyclohexanone. Investigating these aspects can provide valuable insights into how the functionalization of MOFs performs in real‐world self‐condensation scenarios and help in optimizing their practical applications.
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Research context

Catalysis & surfaces

OpenAlex topics: Metal-Organic Frameworks: Synthesis and Applications · Polyoxometalates: Synthesis and Applications · Chemical Synthesis and Reactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

Department of Chemistry School of Natural Sciences National University of Sciences and Technology Islamabad 44000 Pakistan

Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC‐HTCM) King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia

School of Chemistry and Chemical Engineering Nanjing University of Science and Technology Nanjing 210094 China

State Key Laboratory Cultivation Base of Atmospheric Optoelectronic Detection and Information Fusion Nanjing University of Information Science & Technology Nanjing 210044 China

Department of Chemistry National Sun‐Yat‐Sun University Taiwan 80424 China

Mechanical, Materials and Aerospace Engineering Illinois Institute of Technology Chicago IL 60616 USA

Department of Chemistry The University of Hong Kong Hong Kong 999077 China

Funding

National Natural Science Foundation of China

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