ORCID Profile
0000-0002-6921-4504
Current Organisations
University of Nottingham - Malaysia Campus
,
Crops For the Future UK
,
Idaho National Laboratory
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Elsevier BV
Date: 04-2022
Publisher: The Electrochemical Society
Date: 23-11-2020
DOI: 10.1149/MA2020-02402590MTGABS
Abstract: Energy and chemical industry showed increasing interest in energy to molecules and materials (E2M2) due to the widely available distributed feedstock and energy input (renewable and/or nuclear energy associated electricity and excess heat). These factors offer new opportunities to those technologies with smaller scale, modularized/distributed, and driven by an integrated system of renewable and other energy sources that can show promise for increased productivity with decreased energy, capital, and operating costs. Intermediate temperature electrosynthesis through solid oxide cells is a promising strategy because of the following advatanges: (1) it can control the product selectivity by changing the operating potentials and temperatures, (2) it can be operated at ambient pressure, (3) it has high production rate and low overpotential, and (4) it can be easily integrated with power and heat from nuclear energy and renewables. Despite of these promising features, this technology still faces many challenges that include but not limited to immature process, relatively low catalyst activity, and unproven operation durability. At Idaho National Laboratory, we have made significant achievements on electrosynthesis of intermediates, fuels and chemicals using natural gas, steam, carbon dioxide and nitrogen through protonic ceramic membrane reactors. The research outcomes have the potential to establish a globally competitive U.S. industry for converting the Nation’s abundant supply of feedstock into conversion-ready intermediates and/or high demand fuels and chemicals.
Publisher: Springer Science and Business Media LLC
Date: 08-04-2021
Publisher: The Electrochemical Society
Date: 23-11-2020
DOI: 10.1149/MA2020-02402507MTGABS
Abstract: Hydrogenation reactions are essential processes in the chemical industry, giving access to a variety of valuable compounds. CO 2 and N 2 can be transformed into carbonates and NH 3 through hydrogenation reactions. Metal oxides supported metals/alloys are the most investigated catalytic materials in heterogeneous electrochemical catalysis. The strong metal-support interaction (SMSI), which determines the catalytic activity, largely depends on chemical conditions of the support and particle size of dispersed metal nanoparticles (NPs). In this work, we studied the SMSI in doped CeO 2 supported noble metal NPs systems and their activities for CO 2 and N 2 hydrogenation reactions in solid oxide electrolyzer. By using a combination of high-throughput density functional theory (DFT) calculations and electrochemical measurements in solid oxide electrolyzer, we developed highly active catalysts for CO 2 and N 2 hydrogenation reactions. The reactions of CO 2 and N 2 hydrogenation normally require large energy input because both CO 2 and N 2 are quite stable and inert molecules with strong chemical bonds and low polarizability. The adsorption of CO 2 and N 2 molecules on metal-oxide composite surfaces is normally quite weak, which results in large energy barriers for their activation processes. We performed DFT calculations to determine the key properties for selected doped CeO 2 supported noble metal NPs systems to achieving high performance under solid oxide electrolyzer operating conditions. The predictions were further confirmed by the experiments. The highly predictive DFT calculations played a great role in determining the development of electrochemical catalysts for hydrogenation and reactions. Atomic-level materials properties and reaction pathways based on different reaction mechanisms from DFT paved the way for searching for highly active catalysts. The experimental evidence indicated that it is applicable to several hydrogenation reactions.
Publisher: Elsevier BV
Date: 05-2013
Publisher: Elsevier BV
Date: 11-2013
Publisher: Wiley
Date: 29-06-2015
Publisher: Springer Science and Business Media LLC
Date: 30-04-2021
Publisher: Elsevier BV
Date: 02-2013
Publisher: Elsevier BV
Date: 02-2013
Location: United Kingdom of Great Britain and Northern Ireland
Location: United States of America
Start Date: 2021
End Date: 2025
Funder: European Commission
View Funded Activity