철과 코발트 산화물의 수소 환원에 니켈 및 팔라듐 첨가의 효과 = Hydrogen Induced Reduction of Fe- and Co-Oxides with Addition of Ni and Pd

다국어 초록 (Multilingual Abstract)

Temperature programmed reduction experiments for Fe- and Co-oxides were performed and weight losses were carefully measured to calculate the extent of reduction. Addition of nickel and palladium affected the reduction by lowering the DTG peak temperature. Reduction experiments for the oxides on alumina were also studied and the effect of nickel and palladium addition was confirmed. And that was explained by means of increased adsorption of hydrogen and increased diffusion ability of the surface hydrogen.

참고문헌 (Reference)

1 전법주, "산화-환원 싸이클 조업에 의한 고순도 수소생성" 한국수소및신에너지학회 21 (21): 355-363, 2010

2 Y. Lei, "The origin of rhodium promotion of Fe3O4-Cr2O3 catalysts fot the high-temperature water-gas shiht reaction" 239 (239): 227-, 2006

3 X. Zhong, "Study of the interfacial structure of a Pt/Al2O3 model catalyst under high-temperature hydrogen reduction" 236 (236): 9-, 2005

4 H. Yang, "Shape selective and hydrogen spillover approach in the design of sulfur-tolerant hydrogenation catalysts" 243 (243): 36-, 2006

5 M. J. Tiernan, "New approach to the investigation of mechanism and apparent activation energy for the reduction of metal oxide using constant reaction rate temperature-programmed reduction" 103 : 338-, 1999

6 T. Beutel, "Metal-promoter interaction in vanadium oxide promoted Rh/SiO2 Catalyst" 88 (88): 2775-, 1992

7 V. Roland, "Electronic effect of hydrogen spillover on titania, In Spillover and migration of surface species on catalysts" Elsevier Science 1997

8 김종팔, "Effect of Palladium and Nickel on the Temperature Programmed Reduction of Metal Oxides and Metal Oxide Layers" 한국화학공학회 21 (21): 385-388, 2004

9 J. Hohmeyer, "Activation of dihydrogen on supported and unsupported silver catalysts" 269 (269): 5-, 2010