Synchrotron X‐Ray‐Driven Nitrogen Reduction on an AgCu Thin Film
Source abstract
Abstract
Abstract Nitrogen (N2) is an essential element for life, but kinetically stable N2 in the atmosphere needs to be reduced to biologically available forms as a nutrient for organisms. Abiotic nitrogen fixation is critical to the origin of life on the early Earth, which is due to lightning or mineral‐based reduction. Here, synchrotron X‐ray‐induced silver nitrate formation on a silver copper (AgCu) thin‐film is reported. Time‐resolved X‐ray diffraction measurements show that under intense X‐ray exposure, initially formed silver oxides (AgOx) are quickly converted to silver nitrate (AgNO3). Interestingly, AgNO3 is first formed in its high‐temperature phase with a space group of R3cH, which gradually transforms to the room temperature phase with a space group of Pbca under continuous X‐ray irradiation. The result not only provides a new clue about the abiotic nitrogen reduction prior to life but also demonstrates a novel strategy of materials synthesis using synchrotron X‐rays.
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Research context
OpenAlex topics: Ammonia Synthesis and Nitrogen Reduction · Nanomaterials for catalytic reactions · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China
Department of Chemistry Marquette University Milwaukee WI 53201 USA
X‐ray Science Division Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA
Center for Nanoscale Materials Argonne National Laboratory Argonne IL 60439 USA
Institute of High Energy Physics the Chinese Academy of Sciences Beijing 100049 China
Department of Physics City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong China
Centre for Neutron Scattering City University of Hong Kong 83 Tat Chee Avenue Kowloon Hong Kong China
Funding
National Key Research and Development Program of China · American Philosophical Society · U.S. Department of Energy · Office of Science · Basic Energy Sciences
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