Rational Synthesis for a Noble Metal Carbide

Takuo Wakisaka, Kohei Kusada, Dongshuang Wu, Tomokazu Yamamoto, Takaaki Toriyama, Syo Matsumura, Hiroshi Akiba, Osamu Yamamuro, Kazutaka Ikeda, Toshiya Otomo, Natalia Palina, Yanna Chen, Loku S.R. Kumara, Chulho Song, Osami Sakata, Wei Xie, Michihisa Koyama, Yoshiki Kubota, Shogo Kawaguchi, Ryan L. ArevaloSusan M. Aspera, Elvis F. Arguelles, Hiroshi Nakanishi, Hiroshi Kitagawa

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Transition metal carbides have attractive physical and chemical properties that are much different from their parent metals. Particularly, noble metal carbides are expected to be promising materials for a variety of applications, particularly as efficient catalysts. However, noble metal carbides have rarely been obtained because carbide phases do not appear in noble metal-carbon phase diagrams and a reasonable synthesis method to make noble metal carbides has not yet been established. Here, we propose a new synthesis method for noble metal carbides and describe the first synthesis of rhodium carbide using tetracyanoethylene (TCNE). The rhodium carbide was synthesized without extreme conditions, such as the very high temperature and/or pressure typically required in conventional carbide syntheses. Moreover, we investigated the electronic structure and catalytic activity for the hydrogen evolution reaction (HER). We found that rhodium carbide has much higher catalytic activity for HER than pure Rh. Our study provides a feasible strategy to create new metal carbides to help advance the field of materials science.

Original languageEnglish
Pages (from-to)1247-1253
Number of pages7
JournalJournal of the American Chemical Society
Issue number3
Publication statusPublished - Jan 22 2020

All Science Journal Classification (ASJC) codes

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


Dive into the research topics of 'Rational Synthesis for a Noble Metal Carbide'. Together they form a unique fingerprint.

Cite this