Imaging of nitrogen fixation at lithium solid electrolyte interphases via cryo-electron microscopy
Imaging of nitrogen fixation at lithium solid electrolyte interphases via cryo-electron microscopy
复制标题
通过冷冻电子显微镜对锂固体电解质界面的固氮成像
DOI:
10.1038/s41560-022-01177-5
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发表时间:
2023
期刊:
影响因子:
56.7
通讯作者:
Li, Yuzhang
中科院分区:
文献类型:
--
作者:
Steinberg, Katherine;Yuan, Xintong;Klein, Channing K.;Lazouski, Nikifar;Mecklenburg, Matthew;Manthiram, Karthish;Li, Yuzhang
Ammonia is an important industrial chemical and is also being discussed as a potential energy carrier. Electrifying ammonia synthesis could help to decarbonize the chemical industry, as the Haber–Bosch process contributes markedly to global carbon emissions. A lithium-mediated pathway is among the most promising ambient-condition electrochemical ammonia synthesis methods. However, the role of metallic lithium and its passivation layer, the solid electrolyte interphase (SEI), remains unresolved. Here we use cryogenic transmission electron microscopy as part of a multiscale approach to explore lithium reactivity and the SEI, discovering that the proton donor (for example, ethanol) governs lithium reactivity towards nitrogen fixation. Without ethanol, the SEI passivates lithium metal, rendering it inactive for nitrogen reduction. Ethanol disrupts this passivation layer, enabling continuous reactivity at the lithium surface. As a result, metallic lithium is consumed via reactions with nitrogen, proton donor and other electrolyte components. This reactivity across the SEI is vital to device-level performance of lithium-mediated ammonia synthesis.
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影响因子:
4.3
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J. A. Kent
通讯作者:
J. A. Kent
影响因子:
10.8
作者:
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Foster, Shelby L.
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37.8
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Lazouski, Nikifar;Chung, Minju;Manthiram, Karthish
通讯作者:
Manthiram, Karthish
影响因子:
12.9
作者:
Lazouski, Nikifar;Steinberg, Katherine J.;Manthiram, Karthish
通讯作者:
Manthiram, Karthish