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Catalytic Performance of Nickel Nanowires Immobilized in Silica Aerogels for the CO₂ Hydration Reaction

Lookup NU author(s): Khalil Hassan, Dr Jiabin Wang, Dr Xiao Han, Gaurav Bhaduri, Professor Lidija Siller

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Abstract

In this work, wavy nickel nanowires (NiNWs) were immobilised on mesoporous silica (SiO2) aerogels by the sol-gel method. We measured the catalytic activity of pure NiNWs and NiNWs-SiO2 aerogels composites toward the CO2 hydration reaction (CHR) when are in water. Dynamic vapour sorption (DVS) analysis was performed at levels of 50% CO2 and 50% H2O vapour for SiO2 aerogels, immobilised nickel nanoparticles (NiNPs) on silica aerogels and NiNWs-SiO2 aerogels composites, in order to determine catalytic activity for CHR in gaseous phase. The results from DVS analysis (gaseous phase) and CHR (aqueous phase) showed that NiNWs-SiO2 aerogels composites are good heterogeneous catalyst for CHR in both gaseous and aqueous phases but they are less active than NiNPs-SiO2 aerogel composites.

Publication metadata

Author(s): Hassan KT, Wang J, Han X, Sharp J, Bhaduri G, Martis V, Siller L

Publication type: Article

Publication status: Published

Journal: ACS Omega

Year: 2019

Volume: 4

Issue: 1

Pages: 1824-1830

Online publication date: 23/01/2019

Acceptance date: 24/12/2018

Date deposited: 22/12/2018

ISSN (electronic): 2470-1343

Publisher: American Chemical Society

URL: https://doi.org/10.1021/acsomega.8b03361

DOI: 10.1021/acsomega.8b03361

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