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Fast decomposition of Li2CO3/C actuated by single-atom catalysts for Li-CO2 batteries

التفاصيل البيبلوغرافية
العنوان: Fast decomposition of Li2CO3/C actuated by single-atom catalysts for Li-CO2 batteries
المؤلفون: Ting Jin, Chao Shen, Keyu Xie, Kun Zhang, Lijiao Zhou, Yaqin Qi, Hui Wang
المصدر: Science China Materials. 64:2139-2147
بيانات النشر: Springer Science and Business Media LLC, 2021.
سنة النشر: 2021
مصطلحات موضوعية: Materials science, Graphene, Oxide, chemistry.chemical_element, 02 engineering and technology, Overpotential, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Decomposition, 0104 chemical sciences, Catalysis, law.invention, Metal, chemistry.chemical_compound, chemistry, Chemical engineering, law, visual_art, visual_art.visual_art_medium, General Materials Science, Lithium, 0210 nano-technology, Voltage
الوصف: Lithium carbon dioxide (Li-CO2) batteries deliver a theoretical energy density of 1876 W h kg−1 in terms of effective utilization of greenhouse gases. This battery system is considered to be an encouraging electrochemical energy storage device and a promising alternative to Li-ion batteries. However, the main drawback of Li-CO2 batteries is their accumulative discharge product of Li2CO3/C, which leads to large overpotential and poor cycling performance. Thus, specific and efficient catalysts must be explored to enhance the decomposition of Li2CO3/C. Single-atom catalysts (SACs) are regarded as promising heterogeneous catalysts owing to their maximized utilization of metal atoms and strong interfacial electronic interactions. Herein, single-metal atoms of Fe, Co, and Ni uniformly anchored on N-doped reduced graphene oxide (rGO), designated as Fe1/N-rGO, Co1/N-rGO, and Ni1/N-rGO, respectively, are designed and fabricated to investigate their catalytic activity toward the decomposition of Li2CO3/C. Among them, Fe1/N-rGO delivers a high discharge capacity of 16,835 mA h g−1 at 100 mA g−1 and maintains stability for more than 170 cycles with a discharge voltage of 2.30 V at 400 mA g−1. Therefore, this catalysts are overwhelmingly superior to other types. This work reveals the advances of SACs in Li-CO2 batteries and offers an effective method for realizing high-performance Li-CO2 batteries.
تدمد: 2199-4501
2095-8226
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::f4b6ed5e86cbca2dfd56e36b93e9b8de
https://doi.org/10.1007/s40843-020-1638-6
حقوق: OPEN
رقم الأكسشن: edsair.doi...........f4b6ed5e86cbca2dfd56e36b93e9b8de
قاعدة البيانات: OpenAIRE
الوصف
تدمد:21994501
20958226