Lamellarly Stacking Porous N, P Co‐Doped Mo2C/C Nanosheets as High Performance Anode for Lithium‐Ion Batteries. Issue 8 (30th January 2019)

• Record Type: Journal Article
• Authors: Lyu, Fucong; Zeng, Shanshan; Sun, Zhifang; Qin, Ning; Cao, Lujie; Wang, Zhenyu; Jia, Zhe; Wu, Shaofei; Ma, Fei‐Xiang; Li, Minchan; Wang, Wenxi; Li, Yang Yang; Lu, Jian; Lu, Zhouguang
• Is Part Of: Small. Volume 15:Issue 8(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-01-30
• Subjects: lithium‐ion batteries -- N, P co‐doped Mo2C/C nanosheets -- porous structure -- stacking nanosheets; Nanotechnology -- Periodicals; Nanoparticles -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1002/smll.201805022
• Languages: English
• ISSNs: 1613-6810

Abstract

Abstract: Layered stacking and highly porous N, P co‐doped Mo2 C/C nanosheets are prepared from a stable Mo‐enhanced hydrogel. The hydrogel is formed through the ultrafast cross‐linking of phosphomolybdic acid and chitosan. During the reduction of the composite hydrogel framework under inert gas protection, highly porous N and P co‐doped carbon nanosheets are produced with the in situ formation of ultrafine Mo2 C nanoparticles highly distributed throughout the nanosheets which are entangled via a hierarchical lamellar infrastructure. This unique architecture of the N, P co‐doped Mo2 C/C nanosheets tremendously promote the electrochemical activity and operate stability with high specific capacity and extremely stable cycling. In particular, this versatile synthetic strategy can also be extended to other polyoxometalate (such as phosphotungstic acid) to provide greater opportunities for the controlled fabrication of novel hierarchical nanostructures for next‐generation high performance energy storage applications. Abstract : A method for fabricating lamellarly stacking porous N, P co‐doped transition metal carbide/C nanosheets is reported . The nanosheets are derived from a hydrogel which is formed through the ultrafast cross‐linking of polyoxometallate and chitosan, and are highly porous with N and P co‐doping.