Scientists report a family of tin-based catalysts that efficiently converts CO2 into ethanol, acetic acid and formic acid. These liquid hydrocarbons are among the most produced chemicals in the U.S and are found in many commercial products.
A low-cost, tin-based catalyst can selectively convert carbon dioxide to three widely produced chemicals -- ethanol, acetic acid and formic acid.). A contributor of greenhouse gas and global warming, it could instead be captured and converted to value-added chemicals.
The catalysts are based on tin metal deposited over a carbon support. ?"If fully developed, our catalysts could convert the COproduced at various industrial sources to valuable chemicals," said Di-Jia Liu. ?"These sources include fossil fuel power plants and bio-fermentation and waste treatment facilities." Liu is a senior chemist at Argonne and a senior scientist in the Pritzker School of Molecular Engineering at the University of Chicago.
According to Liu, ?"Our ultimate goal is to use locally generated electricity from wind and solar to produce desired chemicals for local consumption."conversion with electricity supplied by renewable energy. Low-temperature electrolyzers can operate at near ambient temperature and pressure. This allows rapid start and stop to accommodate the intermittent supply of renewable energy. It is an ideal technology to serve this purpose.
Support for the research came from DOE's Office of Energy Efficiency and Renewable Energy under the Advanced Manufacturing Office, Industrial Efficiency & Decarbonization Office. Additional support was provided by Argonne's Laboratory Directed Research and Development fund.Haiping Xu, Jianxin Wang, Haiying He, Inhui Hwang, Yuzi Liu, Chengjun Sun, Haozhe Zhang, Tao Li, John V. Muntean, Tao Xu, Di-Jia Liu.
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