Recovery of rare metal compounds from nickel-metal hydride battery waste and their application to CH4 dry reforming catalyst

Tomohiro Kanamori, Motohide Matsuda, Michihiro Miyake

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The recovery of valuable components such as nickel from nickel-metal hydride (Ni-MH) battery waste by chemical processes and their applications to CH4 dry reforming catalysts were investigated. Three types of compound, identified by XRD analysis as NiO, CeO2 and LaCoO3 phases, were successfully separated from the waste by a series of chemical processes at room temperature using aqueous solutions of HCl, NaOH and NH3, and Ni component of ≈70% in Ni-MH battery waste was recovered. The separated NiO, CeO2 and LaCoO3 showed catalytic activities for CH4 dry reforming. In particular, the separated NiO easily reduced to Ni0 at an initial stage, and exhibited excellent catalytic activity in terms of CH4 conversion and stability. Furthermore, it was found that the resulting Ni from separated NiO exhibited an anomalous catalysis from the comparison with that from regent NiO.

Original languageEnglish
Pages (from-to)240-245
Number of pages6
JournalJournal of Hazardous Materials
Volume169
Issue number1-3
DOIs
Publication statusPublished - Sep 30 2009

Fingerprint

Reforming reactions
Chemical Phenomena
Nickel
nickel
Metals
catalyst
chemical process
Recovery
Catalysts
metal
Catalyst activity
catalysis
Catalysis
aqueous solution
X-ray diffraction
Temperature
Nickel metal hydride batteries
battery
temperature

Keywords

  • Catalysis
  • CH dry reforming
  • Nickel-metal hydride battery
  • Rare metal compound
  • Recovery

ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Pollution
  • Waste Management and Disposal
  • Environmental Chemistry
  • Environmental Engineering

Cite this

Recovery of rare metal compounds from nickel-metal hydride battery waste and their application to CH4 dry reforming catalyst. / Kanamori, Tomohiro; Matsuda, Motohide; Miyake, Michihiro.

In: Journal of Hazardous Materials, Vol. 169, No. 1-3, 30.09.2009, p. 240-245.

Research output: Contribution to journalArticle

Kanamori, Tomohiro ; Matsuda, Motohide ; Miyake, Michihiro. / Recovery of rare metal compounds from nickel-metal hydride battery waste and their application to CH4 dry reforming catalyst. In: Journal of Hazardous Materials. 2009 ; Vol. 169, No. 1-3. pp. 240-245.
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