TY - JOUR
T1 - Recovery of rare metal compounds from nickel-metal hydride battery waste and their application to CH4 dry reforming catalyst
AU - Kanamori, Tomohiro
AU - Matsuda, Motohide
AU - Miyake, Michihiro
N1 - Funding Information:
This work was supported by Grants-in-Aid for Scientific Research on Solid Waste Management (K1615, K1731 and K1849) from the Ministry of the Environment, by a Grant-in-Aid for Scientific Research (B) (no. 17350101) from the Japan Society for the Promotion of Science, and in part by the Okayama University 21st Century COE Program “Strategic Solid Waste Management for a Sustainable Society”.
Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/9/30
Y1 - 2009/9/30
N2 - 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.
AB - 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.
KW - CH dry reforming
KW - Catalysis
KW - Nickel-metal hydride battery
KW - Rare metal compound
KW - Recovery
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U2 - 10.1016/j.jhazmat.2009.03.079
DO - 10.1016/j.jhazmat.2009.03.079
M3 - Article
C2 - 19395161
AN - SCOPUS:67649809799
SN - 0304-3894
VL - 169
SP - 240
EP - 245
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1-3
ER -