High performance capacitive deionization using modified ZIF-8-derived, N-doped porous carbon with improved conductivity

Yang Li, Jeonghun Kim, Jie Wang, Nei Ling Liu, Yoshio Bando, Abdulmohsen Ali Alshehri, Yusuke Yamauchi, Chia Hung Hou, Kevin C.W. Wu

Research output: Contribution to journalArticlepeer-review

68 Citations (Scopus)

Abstract

Zeolitic imidazolate framework (ZIF) composite-derived carbon exhibiting large surface area and high micropore volume is demonstrated to be a promising electrode material for the capacitive deionization (CDI) application. However, some inherent serious issues (e.g., low electrical conductivity, narrow pore size, relatively low pore volume, etc.) are still observed for nitrogen-doped porous carbon particles, which restrict their CDI performance. To solve the above-mentioned problems, herein, we prepared gold-nanoparticle-embedded ZIF-8-derived nitrogen-doped carbon calcined at 800 °C (Au@NC800) and PEDOT doped-NC-800 (NC800-PEDOT). The newly generated NC800-PEDOT and Au@NC800 electrodes exhibited notably increased conductivity, and they also achieved high electrosorption capacities of 16.18 mg g−1 and 14.31 mg g−1, respectively, which were much higher than that of NC800 (8.36 mg g−1). Au@NC800 and NC800-PEDOT can be promisingly applicable as highly efficient CDI electrode materials.

Original languageEnglish
Pages (from-to)14852-14859
Number of pages8
JournalNanoscale
Volume10
Issue number31
DOIs
Publication statusPublished - 2018 Aug 21

Bibliographical note

Funding Information:
The acknowledgements come at the end of an article after the conclusions and before the notes and references. This research was funded the Deanship of Scientific Research (DSR), King Abdulazia University (KEP-7-130-39), the Ministry of Science and Technology, Taiwan (MOST 104-2628-E-002-004-MY3; 105-2221-E-002-227-MY3; 105-2218-E-155-007; 105-2221-E-002-003-MY3; 105-2622-E155-003-CC2) and the Center of Atomic Initiative for New Materials, National Taiwan University from the Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan (NTU 105R7706; 106R890702; 107L7828; 107L9008

Funding Information:
The acknowledgements come at the end of an article after the conclusions and before the notes and references. This research was funded the Deanship of Scientific Research (DSR), King Abdulazia University (KEP-7-130-39), the Ministry of Science and Technology, Taiwan (MOST 104-2628-E-002-004-MY3; 105-2221-E-002-227-MY3; 105-2218-E-155-007; 105-2221-E-002-003-MY3; 105-2622-E155-003-CC2) and the Center of Atomic Initiative for New Materials, National Taiwan University from the Featured Areas Research Center Program within the frame-work of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan (NTU 105R7706; 106R890702; 107L7828; 107L9008).

Publisher Copyright:
© The Royal Society of Chemistry.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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