Synthesis and characterization of a well-defined carbon nanohorn- supported molybdenum dioxo catalyst by SMART-EM imaging. surface structure at the atomic level

Yosi Kratish, Takayuki Nakamuro, Yiqi Liu, Jiaqi Li, Issei Tomotsuka, Koji Harano, Eiichi Nakamura, Tobin J. Marks

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

The molybdenum dioxo catalyst CNH/MoO2 is prepared via direct grafting of (dme)MoO2Cl2 (dme = 1,2-dimethoxyethane) onto the graphitic surfaces of carbon nanohorn (CNH) substrates. The structure of this heterogeneous catalyst was characterized by SMART-EM, XPS, and ICP, and is found to have single isolated MoO2 species on the surface as well as a few multi-Mo species. The CNH/MoO2 complex exhibits excellent catalytic activity for polyethylene terephthalate (PET) hydrogenolysis, N-oxide reductions, and reductive carbonyl coupling, representing an informative model catalyst for structural and mechanistic investigations.

Original languageEnglish (US)
Pages (from-to)427-432
Number of pages6
JournalBulletin of the Chemical Society of Japan
Volume94
Issue number2
DOIs
StatePublished - 2021

Funding

Financial support by Office of Basic Energy Sciences, Department of Energy (DE-FG02-03ER15457) to the Institute for Catalysis in Energy Processes (ICEP) at Northwestern University (Y.K., J.L.) is gratefully acknowledged. Purchase of the NMR instrumentation at IMSERC was supported by NSF (CHE1048773). ICP-OES measurements at the Northwestern University Quantitative Bio-element Imaging Center were supported by NASA Ames Research Center Grant (NNA04CC36G). We thank Katia Kratish for expert graphics design. We thank Nobuya Mamizu (SYSTEM IN FRONTIER Inc.) for automated cross-correlation image analysis. This research is supported by JSPS KAKENHI 19H05459, KAKENHI 20K15123, and Japan Science and Technology Agency (SENTAN JPMJSN16B1).

Keywords

  • Molybdenum dioxo complex
  • SMART-EM imaging
  • Single site catalyst

ASJC Scopus subject areas

  • General Chemistry

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