当前位置:
X-MOL 学术
›
Small Methods
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Covalently Sandwiching MXene by Conjugated Microporous Polymers with Excellent Stability for Supercapacitors
Small Methods ( IF 12.4 ) Pub Date : 2020-09-02 , DOI: 10.1002/smtd.202000434 Weizu Yang 1 , Bingyu Huang 1 , Longbin Li 1 , Kaiyang Zhang 1 , Yizhe Li 1 , Jun Huang 1 , Xiannong Tang 1 , Ting Hu 2 , Kai Yuan 1 , Yiwang Chen 1, 3
Small Methods ( IF 12.4 ) Pub Date : 2020-09-02 , DOI: 10.1002/smtd.202000434 Weizu Yang 1 , Bingyu Huang 1 , Longbin Li 1 , Kaiyang Zhang 1 , Yizhe Li 1 , Jun Huang 1 , Xiannong Tang 1 , Ting Hu 2 , Kai Yuan 1 , Yiwang Chen 1, 3
Affiliation
2D MXenes have attracted wide attention due to their unique chemical and physical properties. However, MXene nanosheets suffer from restacking and are susceptible to oxidation and consequently lose their functional properties which limits their applications. Thus, it is desirable to explore strategies to preserve MXene nanosheets and avoid oxidation. Herein, an effective strategy to produce MXene‐based conjugated microporous polymers (M‐CMPs) by covalently sandwiching MXene between CMPs using p‐iodophenyl functionalized MXene as templates is demonstrated. The as‐prepared M‐CMPs inherit the 2D architecture and high conductivity of MXene in terms of hierarchical porous structure and large specific surface area of CMPs. Moreover, the restacking and oxidation of MXene are simultaneously suppressed. Such advanced structural merits are critical for electrochemical energy storage. As‐proof‐of‐concept, the M‐CMPs are used as electrode materials for supercapacitors. As expected, with the improved structural advantages, M‐CMPs showcase superior capacitive performance than the MXene and CMPs counterparts. This work not only provides an opportunity for fabricating high performance MXene nanocomposites for energy storage/conversion but also has the potential to be generalized to resolve the challenges in the area of MXene engineering.
中文翻译:
用共轭微孔聚合物共轭夹层MXene,对超级电容器具有出色的稳定性
2D MXene由于其独特的化学和物理特性而引起了广泛的关注。然而,MXene纳米片遭受重堆积并且易于氧化并且因此失去其功能特性,这限制了它们的应用。因此,期望探索保留MXene纳米片并避免氧化的策略。本文证明了一种有效的策略,该方法通过使用对碘苯基官能化的MXene作为模板,在CMP之间共价夹入MXene,从而生产基于MXene的共轭微孔聚合物(M-CMP)。所制备的M-CMP在CMP的层级多孔结构和大比表面积方面继承了MXene的2D结构和高电导率。而且,同时抑制了MXene的重堆积和氧化。这种先进的结构优点对于电化学能量存储至关重要。从概念上讲,M-CMP被用作超级电容器的电极材料。不出所料,凭借改进的结构优势,M-CMP具有比MXene和CMP同类产品更高的电容性能。这项工作不仅为制造用于能量存储/转换的高性能MXene纳米复合材料提供了机会,而且具有广泛的潜力来解决MXene工程领域中的挑战。
更新日期:2020-10-07
中文翻译:
用共轭微孔聚合物共轭夹层MXene,对超级电容器具有出色的稳定性
2D MXene由于其独特的化学和物理特性而引起了广泛的关注。然而,MXene纳米片遭受重堆积并且易于氧化并且因此失去其功能特性,这限制了它们的应用。因此,期望探索保留MXene纳米片并避免氧化的策略。本文证明了一种有效的策略,该方法通过使用对碘苯基官能化的MXene作为模板,在CMP之间共价夹入MXene,从而生产基于MXene的共轭微孔聚合物(M-CMP)。所制备的M-CMP在CMP的层级多孔结构和大比表面积方面继承了MXene的2D结构和高电导率。而且,同时抑制了MXene的重堆积和氧化。这种先进的结构优点对于电化学能量存储至关重要。从概念上讲,M-CMP被用作超级电容器的电极材料。不出所料,凭借改进的结构优势,M-CMP具有比MXene和CMP同类产品更高的电容性能。这项工作不仅为制造用于能量存储/转换的高性能MXene纳米复合材料提供了机会,而且具有广泛的潜力来解决MXene工程领域中的挑战。