Abstract
Nickel niobate (NiNb2O6) supported on SiO2 was prepared by a chemical mixing method using mixed Ni and Nb citrate solutions. X-ray diffraction study showed that the NiNb2O6 compound was reduced to Ni metal and NbO2 after H2 treatment at 600 ° C, and a strong Ni-niobia interaction was induced after the decomposition of the compound: the ethane hydrogenolysis activity was suppressed severely after high temperature reduction at 600 ° C, and recovered by O2 treatment at 500 ° C followed by low-temperature reduction at 200 ° C. The selectivity of cyclohexane dehydrogenation was improved significantly by the Ni-niobia interaction, if compared with unpromoted Ni/SiO2 catalyst, and the structural change and catalytic behaviors were compared with those of Rh double oxides such as RhNbO4.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. Kunimori, Z. Hu, T. Uchijima, K. Asakura, Y. Iwasawa and M. Soma, Catal. Today 8 (1990) 99.
Z. Hu, H. Nakamura, K. Kunimori, Y. Yokoyama, H. Asano, M. Soma and T. Uchijima, J. Catal. 119 (1989) 33.
K. Kunimori, H. Nakamura, Z. Hu and T. Uchijima, Appl. Catal. 53 (1989) L11.
Z. Hu, T. Wakasugi, A. Maeda, K. Kunimori and T. Uchijima, J. Catal. 127 (1991) 276.
K. Kunimori, T. Wakasugi, F. Yamakawa, H. Oyanagi, J. Nakamura and T. Uchijima, Catal. Lett. 9 (1991) 331.
K. Kunimori, T. Wakasugi, Z. Hu, H. Oyanagi, M. Imai, H. Asano and T. Uchijima, Catal. Lett. 7 (1990) 337.
K. Kunimori, H. Oyanagi, H. Shindo, T. Ishigaki and T. Uchijima,Proc. Int. Conf. on Catalysis (1993), inpress.
E.I. Ko, J.M. Hupp and N.J. Wagner, J. Catal. 90 (1984) 315.
E.I. Ko, R. Bafrali, N.T. Nuhfer and N.J. Wagner, J. Catal. 95 (1985) 260.
G.L. Haller and D.E. Resasco,Advances in Catalysis, Vol. 36 (Academic Press, New York, 1989) p.l73.
J.G. Weissman, E.I. Ko and P. Wynblatt, J. Catal. 125 (1990) 9.
Y.G. Yin, T. Wakasugi, H. Shindo, S. Ito, K. Kunimori and T. Uchijima, Catal. Lett. 9 (1991) 43.
Y.G. Yin, T. Wakasugi, H. Shindo, T. Uchijima and K. Kunimori, Bull. Chem. Soc. Japan 65 (1992) 3218.
K. Kunimori, H. Shindo, H. Oyanagi and T. Uchijima, Catal. Today 16 (1993) 387.
K. Kunimori, H. Arakawa and T. Uchijima,Future Opportunities in Catalytic and Separation Technology, Studies in Surface Science and Catalysis, Vol. 54, eds. M. Misono, Y. Moro-oka and S. Kimura (Elsevier, Amsterdam, 1990) p. 144.
K. Kunimori, T. Wakasugi, F. Yamakawa, H. Oyanagi and T. Uchijima,Proc. 9th Soviet-Japan Seminar on Catalysis, Yuzhno-Sakhalinsk (1990) p. 124.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kunimori, K., Oyanagi, H. & Shindo, H. Nickel-niobia interaction induced by the reduction of NiNb2O6 supported on SiO2 . Catal Lett 21, 283–290 (1993). https://doi.org/10.1007/BF00769480
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00769480