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New achievements in scientific research: adding nanodiamonds can greatly improve the moisture resistance of hydrogen separation membranes

 Last Update: 2022-02-16
 Source: Internet
 Author: User

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Hydrogen (H2), as a kind of clean energy, has become more and more popular in recent years

As a solution to this problem, physical hydrogen separation techniques using 2D membrane materials have attracted considerable attention in recent years, such as GO separation membranes fabricated by stacking and compressing graphene oxide (GO) nanosheets (below).

AFM image of GO film

However, due to the high affinity of GO nanosheets to water, conventional GO separation membranes have a fatal disadvantage, which is water sensitivity

Recently, a research and development team composed of Kyoto University, the High Brightness Optical Science Research Center and the Quantum Science and Technology Research and Development Institute has prepared a nanodiamond (Nanodiamond; ND) with a negative charge on the graphene oxide film in a targeted manner.

In the test, the material is used in the water vapor upgrading of natural gas, and can separate carbon dioxide at the same time

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​New achievements in scientific research: adding nanodiamonds can greatly improve the moisture resistance of hydrogen separation membranes

New achievements in scientific research: adding nanodiamonds can greatly improve the moisture resistance of hydrogen separation membranes