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Updated: Jan 15, 2026

Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
Published on: September 5, 2018
Synergistic Alloy and Support Effects in Covalent Organic Framework-Stabilized AuPd Catalysts for Aerobic
Biao Meng1, Qing Xu1, Xiaoling Liu1
1State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing, China.
Abstract:
Catalytically converting 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) underpins renewable, bio -based plastics, yet designing metal-efficient catalysts remains challenging. Here, we combine alloy and support effects by anchoring AuPd alloy nanoparticles on 2D covalent organic frameworks (COFs). Rationalizing alloy composition and COF functionality yielded Au67Pd33/TTATP, which converted HMF → FDCA in water using atmospheric O2 mild conditions, delivering >99% FDCA yield, stable reusability, a turnover number (TON) of ∼100 at HMF/metal = 100, increasing to 518 at 600 (86.4% yield). High performance stems from alloy-support synergy that (i) partitions function (Au: HMF dehydrogenation; Pd: O2 activation) and (ii) matches adsorption-desorption (TTATP enriches HMF yet releases FDCA; alloy surfaces moderate HMF binding and avoid the strong FDCA adsorption of Pd alone), thereby enhancing metal atom efficiency.
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