Two-Dimensional Core-Shelled Porous Hybrids as Highly Efficient Catalysts for the Oxygen Reduction Reaction

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• 作者：Kai Yuan ; Dr. Xiaodong Zhuang ; Haiyan Fu ; Dr. Gunther Brunklaus ; Dr. Michael Forster ; Prof. Dr. Yiwang Chen ; Prof. Dr. Xinliang Feng and Prof. Dr. Ullrich Scherf
• 刊名：Angewandte Chemie International Edition
• 出版年：2016
• 出版时间：June 6, 2016
• 年：2016
• 卷：55
• 期：24
• 页码：6858-6863
• 全文大小：4646K
• ISSN：1521-3773

文摘

Two-dimensional (2D) transition-metal dichalcogenides (TMDs) have drawn much attention due to their unique physical and chemical properties. Using TMDs as templates for the generation of 2D sandwich-like materials with remarkable properties still remains a great challenge due to their poor solvent processability. Herein, MoS₂-coupled sandwich-like conjugated microporous polymers (M-CMPs) with high specific surface area were successfully developed by using functionalized MoS₂ nanosheets as template. As-prepared M-CMPs were further used as precursors for preparation of MoS₂-embedded nitrogen-doped porous carbon nanosheets, which were revealed as novel electrocatalysts for oxygen reduction reaction with mainly four-electron transfer mechanism and ultralow half-wave potential in comparison with commercial Pt/C catalyst. Our strategy to core–shelled sandwich-like hybrids paves a way for a new class of 2D hybrids for energy conversion and storage.