Oxidation-promoted interfacial synthesis of redox-active bis(diimino)nickel nanosheet

Eunice J.H. Phua, Kuo Hui Wu, Keisuke Wada, Tetsuro Kusamoto, Hiroaki Maeda, Jian Cao, Ryota Sakamoto, Hiroyasu Masunaga, Sono Sasaki, Jia Wei Mei, Wei Jiang, Feng Liu, Hiroshi Nishihara

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Bis(diimino)nickel (NiDI) nanosheet is prepared by two methods of oxidation-promoted interfacial coordination reactions of nickel(II) ions with hexaaminobenzene. The thickness of the large chemically formed NiDI nanosheet can be controlled from atomic layers to thousands of layers. The morphology of electrochemically formed NiDI-modified electrode achievable within a minute suggests longitudinal growth of nanosheets at the surface. Increasing capacity of the NiDI with its amount indicates NiDI as a promising energy storage material.

Original languageEnglish (US)
Pages (from-to)126-129
Number of pages4
JournalChemistry Letters
Issue number2
StatePublished - 2018

Bibliographical note

Funding Information:
This work is supported by JST-CREST JPMJCR15F2, and JSPS KAKENHI Grant Numbers JP15H00862, JP15J06673, JP15K13654, JP16H00900, JP16H00957, JP26220801, JP26708005, JP17H05354, JP17H03028. Work at Utah is supported by US Department of Energy (Grant No. DE FG02-04ER46148). The synchrotron radiation experiments were performed at BL45XU in SPring-8 with the approval of RIKEN (Proposal No. 20160041). Part of this work was performed using facilities of the Cryogenic Research Center, the University of Tokyo. XPS measurements were conducted at Advanced Characterization Nanotechnology Platform of the University of Tokyo, supported by “Nanotechnology Platform” of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. We acknowledge NERSC and CHPC at the University of Utah for providing the computing resources. EP acknowledges Research Fellowships of Japan Society for the Promotion of Science (JSPS) for Young Scientists and the Materials Education Program for the Future Leaders in Research, Industry, and Technology (MERIT).

Publisher Copyright:
© 2018 The Chemical Society of Japan.


  • Bis(diimino)nickel
  • Coordination nanosheet (CONASH)
  • Electropolymerization


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