Heteroatom-Doped Porous Carbon Materials with Unprecedented High Volumetric Capacitive Performance

Huile Jin, Xin Feng, Jun Li, Matthew Li, Yuanzhi Xia, Yifei Yuan, Chao Yang, Bin Dai, Zhiqun Lin, Jichang Wang, Jun Lu, Shun Wang

Research output: Contribution to journalArticlepeer-review

194 Scopus citations

Abstract

The design of carbon-based materials with a high mass density and large porosity has always been a challenging goal, since they fulfill the demands of next-generation supercapacitors and other electrochemical devices. We report a new class of high-density heteroatom-doped porous carbon that can be used as an aqueous-based supercapacitor material. The material was synthesized by an in situ dehalogenation reaction between a halogenated conjugated diene and nitrogen-containing nucleophiles. Under the given conditions, pyridinium salts can only continue to perform the dehalogenation if there is residue water remaining from the starting materials. The obtained carbon materials are highly doped by various heteroatoms, leading to high densities, abundant multimodal pores, and an excellent volumetric capacitive performance. Porous carbon tri-doped with nitrogen, phosphorous, and oxygen exhibits a high packing density (2.13 g cm −3 ) and an exceptional volumetric energy density (36.8 Wh L −1 ) in alkaline electrolytes, making it competitive to even some Ni-MH cells.

Original languageEnglish
Pages (from-to)2397-2401
Number of pages5
JournalAngewandte Chemie - International Edition
Volume58
Issue number8
DOIs
StatePublished - 18 Feb 2019

Bibliographical note

Funding Information:
We are grateful for financial support from the National Natural Science Foundation of China (51772219, 51872209, 21471116, 21628102, and 61728403), the Zhejiang Provincial Natural Science Foundation of China (LZ18E030001, LZ17E020002, and LZ15E020002). J.Lu gratefully acknowledges support from the U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office. Argonne National Laboratory is operated for the DOE Office of Science by UChicago Argonne, LLC, under contract number DE-AC02-06CH11357.

Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • heteroatoms
  • high-density carbon materials
  • porous carbon
  • supercapacitors
  • volumetric energy density

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