Two-Dimensional Core-Shelled Porous Hybrids as Highly Efficient Catalysts for the Oxygen Reduction Reaction.
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.
Macromolecular Chemistry Group (buwmakro) and, Institute for Polymer Technology, Bergische Universität Wuppertal, Gauss-Str. 20, 42119, Wuppertal, Germany.
Kai
K
Yuan
Center for Advancing Electronics Dresden (cfaed) and, Department of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany.|School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, 200240, Shanghai, P.R. China.
Xiaodong
X
Zhuang
College of Chemistry/Institute of Polymers, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China.
Haiyan
H
Fu
Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstr. 28, 48149, Münster, Germany.
Gunther
G
Brunklaus
Macromolecular Chemistry Group (buwmakro) and, Institute for Polymer Technology, Bergische Universität Wuppertal, Gauss-Str. 20, 42119, Wuppertal, Germany.
Michael
M
Forster
College of Chemistry/Institute of Polymers, Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China.
Yiwang
Y
Chen
Center for Advancing Electronics Dresden (cfaed) and, Department of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany. xinliang.feng@tu-dresden.de.
Xinliang
X
Feng
Macromolecular Chemistry Group (buwmakro) and, Institute for Polymer Technology, Bergische Universität Wuppertal, Gauss-Str. 20, 42119, Wuppertal, Germany. scherf@uni-wuppertal.de.
Ullrich
U
Scherf
conjugated microporous polymers; hybrid materials; molybdenum disulfide; noble-metal-free electrocatalysts; supercapacitors