A pure inorganic 2D network molybdophosphate, [Mn₃Mo₁₂O₂₄(OH)₆(HPO₃)₈(H₂O)₆]⁴⁻ (1 a), synthesized through microwave irradiation with the existence of Mn²⁺ and organic cations and isolated as [(CH₃)₂NH₂]₃Na[Mn₃Mo₁₂O₂₄(OH)₆(HPO₃)₈(H₂O)₆]⋅12 H₂O (1), is found to possess highly enhanced performance in lithium‐ion batteries’ anode materials. The molecule shows multielectron redox properties suitable for producing anode materials with a specific capacity of 602 mA h g⁻¹ at 100 mA g⁻¹ after 50 cycles in lithium‐ion batteries, although its specific capacity is the highest among all the reported pure inorganic 2D polyoxometalates to date, the cyclic stability is not that satisfactory. A hybrid nanocomposite of this 2D network and polypyrrole cations effectively reduces the capacity fading in initial cycles, and increases the stability and improves the electrochemical performance of lithium‐ion batteries as well.

中文翻译：

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微波辅助制备和表征基于多金属氧酸盐的无机二维框架阳极，以增强锂离子电池性能

通过在存在Mn ²⁺和有机物的条件下进行微波辐射合成的纯无机二维网状钼磷酸盐[Mn ₃ Mo ₁₂ O ₂₄（OH）₆（HPO ₃）₈（H ₂ O）₆ ] ^4-（1 a）。阳离子并分离为[（CH ₃）₂ NH ₂ ] ₃ Na [Mn ₃ Mo ₁₂ O ₂₄（OH）₆（HPO ₃）₈（H ₂ O）₆ ] ⋅发现12 H ₂ O（1）在锂离子电池的负极材料中具有大大增强的性能。该分子显示出多电子氧化还原特性，适合在锂离子电池中循环50次后在100 mA g ^-1下生产比容量为602 mA h g ^-1的负极材料，尽管在所有报道的纯无机2D中其比容量最高。迄今为止，多金属氧酸盐的循环稳定性不是令人满意的。这种2D网络和聚吡咯阳离子的混合纳米复合材料可有效减少初始循环中的容量衰减，并提高稳定性并改善锂离子电池的电化学性能。