Size modulation of MIL-125 nanocrystals to promote the catalytic performance towards oxidative desulfurization. Issue 19 (27th April 2021)

• Record Type: Journal Article
• Authors: Li, Na; Zhang, Zong-Wen; Zhang, Jia-Ni; Ma, Yue; Chen, Xiao-Yu; Fan, Yang
• Is Part Of: Dalton transactions. Volume 50:Issue 19(2021)
• Page Start: 6506
• Page End: 6511
• Publication Date: 2021-04-27
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt00774b
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : MIL-125 with tunable crystalline size in the range of ca. 50 nm to 1500 nm was synthesized by the coordination modulation method, which exhibits significant size-dependent catalytic activity towards the oxidative desulfurization reaction. Abstract : The Ti-based metal–organic framework (Ti-MOF) MIL-125 with tunable crystalline size in the range of ca. 50 nm to 1500 nm was synthesized by the coordination modulation method using trans -cinnamic acid (CA) as a modulator. The coordination modulation also induced hierarchical porosity and structure defects on the nanocrystals. A significant size-dependent catalytic activity towards the oxidative desulfurization (ODS) reaction was observed for these MIL-125 nanocrystals. In particular, the MIL-125 nanocrystals with a mean size of ca. 50 nm exhibit dramatically enhanced catalytic performance for the bulky sulfur compound 4, 6-dimethyldibenzothiophene (4, 6-DMDBT) compared to the microcrystals. It is demonstrated that the size modulation of MIL-125 is an effective approach to promote its performance for the catalysis of bulky molecules.