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Chemical Engineering Journal

Chemical Engineering Journal

IF: 13.3
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Al-based metal-organic framework for piezocatalytic hydrogen peroxide production: Efficiency, pathway, and mechanism

Published:12 December 2024 DOI: 10.1016/j.cej.2024.158555
Jiawei Huang, Haojie Dong, Lin An, Mingshan Zhu, Junhao Qin

Abstract

Hydrogen peroxide (H2O2) is a versatile substance with a wide array of applications, and piezocatalysis represents a promising alternative approach for its on-site synthesis. In this study, we report the successful synthesis of an aluminum-based metal-organic framework (MOF) NH2-MIL-101(Al), which exhibits exceptional piezocatalytic activity. The NH2-MIL-101(Al) catalyst demonstrated good piezoresponse to the external mechanical forces, with an estimated piezoelectric coefficient of 18.2?nm V?1. Notably, the NH2-MIL-101(Al) piezocatalyst achieved a high H2O2 production rate of 8.89?mmol g?1h?1 under ultrasonic vibration, and demonstrated robust catalytic performance under complex environmental conditions. Mechanistic analysis revealed the promoted charge transfer as well as efficient O2 reduction by the induced polarized electric field over NH2-MIL-101(Al). This research contributes significantly to the advancement of novel MOF materials tailored for H2O2 production, underscoring the potential of MOFs in enhancing piezocatalytic processes.

Substances (5)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Sodium hydroxide 1310-73-2 NaOH 1356 suppliers $14.00-$17490.00
N,N-Dimethylformamide 68-12-2 C3H7NO 1313 suppliers $11.20-$14488.10
Sodium sulfate 7757-82-6 Na2SO4 1035 suppliers $6.00-$3655.00
Ethanol 64-17-5 C2H6O 954 suppliers $10.00-$41399.50
Methanol 67-56-1 CH4O 896 suppliers $9.00-$19915.10

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