电导率
质子
材料科学
化学
物理
核物理学
物理化学
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2020-10-29
卷期号:370 (6516): 543.19-545
标识
DOI:10.1126/science.370.6516.543-s
摘要
Proton Membranes
Proton-exchange membranes (PEMs) allow for the transport of protons while acting as electrical insulators and ensuring that reactants are kept apart; therefore, they are a key component in devices such as low-temperature fuel cells. PEMs are typically made from polymers or materials embedded in a polymer matrix and need to operate in conditions of very high humidity. Starting with an inorganic, layered material, CdPS3, Qian et al. show that the removal of a small amount of cadmium introduces vacancies that greatly increase the proton conductivity of the PEMs (see the Perspective by Wang and He). The process works for manganese-based membranes as well, and high lithium ion transport was also observed.
Science , this issue p. [596][1]; see also p. [525][2]
[1]: /lookup/doi/10.1126/science.abb9704
[2]: /lookup/doi/10.1126/science.abe6166
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