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Proton membranes assembled from 2-D layered phosphorus nanosheets

Proton membranes assembled from 2-D layered phosphorus nanosheets
Synthesis and characterizations of Cd0.85PS3Li0.3 and Cd0.85PS3Li0.15H0.15 nanosheets. Credit: Science (2020). DOI: 10.1126/science.abb9704

A team of researchers affiliated with a host of institutions in China has developed a new class of proton-exchange membranes (PEMs) assembled from transition-metal phosphorus trichalcogenide nanosheets. In their paper published in the journal Science, the group describes using metal vacancies to improve conductivity in the PEMs. Fengmei Wang and Jun He with the National Center for Nanoscience and Technology, Beijing have published a Perspective piece in the same journal issue outlining the history of proton exchange membrane research and the work done by the team in this new effort.


PEMs are semipermeable membranes that are most often made using ionomers. They are produced as a means for conducting protons while acting as both an electronic insulator and a reactant barrier. Typical applications include

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Membranes for capturing carbon dioxide from the air

Membranes for capturing carbon dioxide from the air
Technological solutions for the CO2 emission into the atmosphere should include variety of approaches as there is no one “silver bullet” solution. In this work researchers from I2CNER, Kyushu University and NanoMebrane Technologies Inc. Japan suggest using the gas separation membranes as a tool for direct air capture. When combined with advanced technologies for CO2 conversion the envisaged systems can be widely employed in carbon-recycling sustainable society. Credit: Kyushu University

Climate change caused by emissions of greenhouse gases into the atmosphere is a pressing issue for our society. Acceleration of global warming results in catastrophic heatwaves, wildfires, storms and flooding. The anthropogenic nature of climate change necessitates development of novel technological solutions in order to reverse the current CO2 trajectory.


Direct capture of the carbon dioxide (CO2) from the air (direct air capture, DAC) is one among a variety of negative emission technologies that are expected to

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