Ultrasmall Ni-ZnO/SiO2 Synergistic Catalyst for Highly Efficient Hydrogenation of NaHCO3 to Formic Acid

2021-03-06 Hits:

Indexed by:期刊论文

Date of Publication:2021-03-06

Journal:ACS APPLIED MATERIALS & INTERFACES

Volume:12

Issue:17

Page Number:19581-19586

ISSN No.:1944-8244

Key Words:Ni-ZnO/SiO2; nanocluster catalyst; NaHCO3 hydrogenation; formic acid generation; CO2 conversion

Abstract:Conversion of CO2 into fuels and chemicals has been considered to be an important strategy to reduce greenhouse gas emissions and alleviate the energy crisis. Bicarbonate as a CO2 source is convenient for experimental operation. Herein, based on the synergistic effect of Ni and ZnO benefitting from the electronic transfer, ultrasmall Ni-ZnO clusters (similar to 2 nm) stabilized by microporous silica nanoparticles were designed and prepared for catalyzing the hydrogenation of sodium bicarbonate to formic acid. The yield of formic acid reached up to 97.0% at 260 degrees C/3 MPa for 2 h, which is higher than those reported non-noble metal-based catalysts. The good performance of Ni-ZnO/SiO2 can be attributed to the ultrasmall active component size and the synergy effect based on electron transfer between Ni and ZnO.

Date of Publication:2021-03-06