A team of scientists has created a bowl-shaped electrode with "hot edges" that can efficiently convert CO2 from gas into fuels and carbon-based chemicals, helping to combat the threat of climate change posed by dioxide. atmospheric carbon.
The research team, from the University of Bath, the University of Fudan, Shanghai and the Institute of Control of Pollution and Ecological Security of Shanghai, hopes that the design of the catalyst will eventually allow the use of renewable electricity to convert CO2 into fuel without creating additional atmospheric carbon, essentially acting as a & # 39; blade & # 39; electrochemistry to convert carbon dioxide into sugars.
The use of this reaction, known as the reduction of carbon dioxide, has exciting potential, but two main obstacles are the poor conversion efficiency of the reaction and the lack of detailed knowledge about the exact route of the reaction.
This new electrode addresses these challenges with greater conversion efficiency and sensitive detection of molecules created throughout the progress of the reaction, thanks to its innovative shape and construction. The bowl-shaped electrode works six times faster than standard flat or flat designs.
The shape of the bowl design, technically known as the "reverse opal structure", concentrates the electric fields on its hot edges, the edge of the bowl, which in turn concentrates the positively charged potassium ions in the active sites of the reaction, which reduce your energy Requirements
The copper-indium alloy electrode can also be useful for sensitively studying the reaction process through the measurement of the Raman signal, which is higher compared to a typical electrode.
The study is published in the. Journal of Materials Chemistry A.
Professor Ventsislav Valev, from the Department of Physics at the University of Bath, said: "There is no human need more pressing than to breathe in. However, for hundreds of millions of people, this more basic activity is a source of anxiety for reduce life expectancy, increase infant mortality and "Climate change. There is evidence that CO2 increases the ozone of the surface, carcinogens and particles, which increases mortality, asthma, hospitalization and cancer rates. Therefore, it is crucial to continue researching new ways to reduce CO2 levels in the atmosphere. "
The team wants to continue the research to develop the most efficient catalyst for carbon reduction.
Professor Liwu Zhang, from Fudan University, said: "CO2 is causing climate change, making our planet warmer, and by using clean electricity, we can convert CO2 into chemical fuels, which can be used again. This creates a CO2 cycle, without increasing the CO2 concentration and will help save our world.
"However, to improve the efficiency of the transformation of CO2 into chemical fuels, it is extremely important to know the reaction route and find the most suitable catalyst.
"Just as plants transform CO2 into sugar, we find an appropriate electrochemical sheet for the conversion of CO2."
The study: "The hot edges" in a reverse opal structure allow an efficient electrochemical reduction of CO2 and a sensitive characterization of Raman in situ "is published in Journal of Materials Chemistry A.
The study was funded by the Ministry of Science and Technology of the People's Republic of China, and the National Foundation of Natural Sciences of China, the Research Council of Engineering and Physical Sciences (EPSRC) Center for Doctoral Training in Condensed Matter Physics (CDT-CMP), and the real society.
For more information, contact Chris Melvin at the University Press Office of Bath at +44 (0) 1225 383 941 or firstname.lastname@example.org
University of bath
The University of Bath is one of the leading universities in the United Kingdom both in terms of research and in our reputation for excellence in teaching, learning and the perspectives of graduates.
The University is qualified as Gold in the Framework of Teaching Excellence (TEF), the government evaluation of the quality of teaching in universities, which means that its teaching is of the highest quality in the United Kingdom.
In the framework of the Excellence in Research (REF) evaluation of the 2014 research, 87 percent of our research was defined as "world leader" or "excellent internationally". From developing fuel-efficient cars of the future, to identifying infectious diseases more quickly or working to improve the lives of women farmers in West Africa, Bath's research is making a difference around the world. Get more information: http: // www.
Well established as an environment conducive to entrepreneurial minds, Bath ranks first in every table in the national league. We are in sixth place in the United Kingdom according to The Guardian University 2019 Guide, the 5th for employment of graduates in The Times & Sunday Times Good University Guide 2019 and the 4th in the Student Experience Survey of Times Higher Education 2018.
Resignation: AAAS and EurekAlert! they are not responsible for the accuracy of the press releases published in EurekAlert. through contributing institutions or for the use of any information through the EurekAlert system.