DataVXAdvanced MaterialsPaper
journal article·2022-01

Liquid‐Metal‐Enabled Mechanical‐Energy‐Induced CO2 Conversion

Junma Tang, Jianbo Tang, Mohannad Mayyas, Mohammad B. Ghasemian, Jing Sun, Md Arifur Rahim, Jiong Yang, Jialuo Han, Douglas J. Lawes, Rouhollah Jalili, Torben Daeneke, Maricruz G. Saborio, Zhenbang Cao, Claudia A. Echeverria, Francois‐Marie Allioux, Ali Zavabeti, Jessica Hamilton, Valerie Mitchell, Anthony P. O'Mullane, Richard B. Kaner, Dorna Esrafilzadeh, Michael D. Dickey, Kourosh Kalantar‐Zadeh

Advanced Materials· Volume 34· Issue 1
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Source abstract

Abstract

Abstract A green carbon capture and conversion technology offering scalability and economic viability for mitigating CO2 emissions is reported. The technology uses suspensions of gallium liquid metal to reduce CO2 into carbonaceous solid products and O2 at near room temperature. The nonpolar nature of the liquid gallium interface allows the solid products to instantaneously exfoliate, hence keeping active sites accessible. The solid co‐contributor of silver–gallium rods ensures a cyclic sustainable process. The overall process relies on mechanical energy as the input, which drives nano‐dimensional triboelectrochemical reactions. When a gallium/silver fluoride mix at 7:1 mass ratio is employed to create the reaction material, 92% efficiency is obtained at a remarkably low input energy of 230 kWh (excluding the energy used for dissolving CO2) for the capture and conversion of a tonne of CO2. This green technology presents an economical solution for CO2 emissions.
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Research context

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Advanced Thermoelectric Materials and Devices · Carbon dioxide utilization in catalysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Chemical Engineering University of New South Wales (UNSW) Sydney NSW 2052 Australia

Mark Wainwright Analytical Centre University of New South Wales (UNSW) Sydney NSW 2052 Australia

School of Engineering Royal Melbourne Institute of Technology (RMIT) Melbourne VIC 3001 Australia

Department of Chemical Engineering The University of Melbourne Parkville VIC 3010 Australia

Australian Synchrotron ANSTO Clayton VIC 3168 Australia

School of Chemistry and Physics Queensland University of Technology (QUT) Brisbane QLD 4001 Australia

Department of Chemistry and Biochemistry and California NanoSystems Institute University of California Los Angeles CA 90095 USA

Department of Material Science and Engineering University of California Los Angeles CA 90095 USA

Graduate School of Biomedical Engineering University of New South Wales (UNSW) Sydney NSW 2052 Australia

Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh NC 27695 USA

Funding

Australian Research Council

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