The enzyme substance responsible for methane-methanol conversion undergoes a catalytic reaction at a location containing only one copper ion.
Methane oxidizing bacteria can remove methane from the environment and convert it into usable fuel. It is an unsolved mystery how exactly this bacterium naturally performs such a complex reaction. A few days ago, an interdisciplinary research team at Northwestern University found that the enzyme substance responsible for methane-methanol conversion had a catalytic reaction at a location containing only one copper ion. Related research results were published in Science.
This latest discovery will lead scientists to design a new artificial catalyst that can convert methane into easy-to-use methanol, with the same mechanism as methane oxidizing bacteria. Amy C. Rosenzweig, a co-author of the research report and a special life science professor of the Weinberg family at the Weinberg School of Art and Science at Northwestern University, said: "For decades, the nature and structure of the metal ion responsible for catalysis has been difficult to determine. At present, we 'S research has made a major leap forward to further understand how bacteria convert methane to methanol. "
Another co-author of the study, Brian M. Hoffman, a chemistry professor at Northwestern University ’s Weinberg School of Arts and Sciences, said: “By identifying the key types of copper ions involved in this complex reaction, we will determine how nature is most challenging. The complex reaction of sex lays the foundation. "
The researchers say that by oxidizing methane and converting it into methanol, the role of methane oxidizing bacteria is amazing. It not only eliminates harmful methane greenhouse gases from the environment, but also converts it into an easy-to-use, sustainable car. fuel.
The current methane-methanol reaction industrial catalytic process requires huge pressure and extremely high temperature, and the temperature needs to reach above 1300 degrees Celsius. In contrast, methane-oxidizing bacteria can "free reaction" at room temperature.
Matthew O. Ross, the first author of the research report and a graduate student of Northwestern University, said: "Although the location of copper ions can catalyze the methane-methanol conversion process in man-made materials, the methane-methanol catalytic process at the copper ion location in the natural environment is unprecedented. If we can fully understand how to convert methane to methanol at room temperature, we can further optimize and improve the current catalyst.
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