DESAIN DAN KARAKTERISTIK PERMUKAAN KOBALT OKSIDA PADA PENDUKUNG KATALIS

Qurrota A'yuni

Abstract


Material surface characteristics are the main criteria to be considered in catalyst design. The surface area and catalyst porosity determine activity and selectivity in catalytic reactions. In this research, synthesis of cobalt oxide, calcium fluoride and calcium fluoride cobalt oxide has been done. Characterization of solid sufaces is analyzed by using Nitrogen Gas Adsorption Method. The surface area of solids is analyzed by using SBET and SBJH Methods. Identification of mesoporous both qualitative and quantitative is analyzed by using BJH Method. The result of synthetic solid shows the pattern of isotherm adsorption type IV which is typical for mesoporous material. Surface measurements show the presence of cobalt oxide on a catalyst support marked by decreasing surface area, pore size and pore volume of catalyst support material.


Keywords


Surface Area, Porosity, Cobalt Oxide, Catalyst Support

Full Text:

PDF

References


Bisht, V., and Rajeev, K.P. 2011. Non-equilibrium effects in the magnetic behavior of Co3O4 nanoparticles. Solid State Communications, 151: 1275-1279.

Do, D.D. 1998. Adsorption Analysis: Equilibria and Kinetics. London: Imperial College.

Gregg, S.J. and Sing, K.S.W. 1982. Adsorption, Surface Area, and Porosity. London: Academic Press.

Hammond, K. D. and W. C. Conner. 2013. Analysis of catalyst surface structure by physical sorption. In Advances in Catalysis, 56: 1-101.

Li, Z., Yang, C., Wu, S., and Kan, Q. 2017. Nano-Co3O4 supported on magnetic N-doped graphene as highly efficient catalyst for epoxidation of alkenes. Molecular Catalysis, 432: 267-273.

Liu, S., Wang, Z., Zhao, H., Fei, T., and Zhang, T. 2014. Ordered mesoporous Co3O4 for high-performance toluene sensing. Sens. Actuators B, 197: 342-349.

Lu, S., Li, K., Huang, F., Chen, C., and Sun, B. 2017. Efficient MnOx-Co3O4-CeO2 catalysts for formaldehyde elimination. Applied Surface Science, 400: 277-282.

Mei, J., Zhao, S., Xu, H., Qu, Z., and Yan, N. 2016. The performance and mechanism for the catalytic oxidation of dibromomethane (CH2Br2) over Co3O4/TiO2 catalysts, RSC Advances 6: 31181-31190.

Mei, J., Ke, Y., Yu, Z., Hu, X., Qu, Z.,and Yan, N. 2017. Morphology-dependent properties of Co3O4/CeO2 catalysts for low temperature dibromomethane (CH2Br2) oxidation. Chemical Engineering Journal, 320: 124-134.

Mikhail, R.S., and Robens, E. 1983. Microstructure and Thermal Analysis of Solid Surface. New York: John Wiley & Sons.

Oxtoby, D. W., Gillis, H. P., and Nachtrieb, N. H. 2001. Prinsip-prinsip Kimia Modern. Edisi Keempat, Jilid 1. Jakarta: Erlangga.

Park, J., Shen, X.P., and Wang, G.X. 2009. Solvothermal synthesis and gas-sensing performance of Co3O4 hollow nanospheres, Sens. Actuators B, 136: 494–498.

Perego C., and Villa, P. 1997. Catalyst Preparation Method. Catalysis Today, 34: 281-305.

Quan, H., Tamura, M., Sekiya, A., and Gao, R. 2002. Preparation and Application of Porous Calcium Flouride, A Novel Flourinating Reagent and Support Catalyst. Journal of Flourine Chemistry, 116: 65-69.

Rouquerol, F., Rouquerol, J., and Sing, K. 1999. Adsorption by Powders and Porous Solids. Principles Methodology and Application. London: Academic Press, Inc.

Satterfield, C.N. 1980. Heterogenous Catalyst in Practice. New York: Mc Graw Hill Book Company.

Sui, C., Zhang, T., Dong, Y., Yuan, F., Niu, X., and Zhu, Y. 2017. Interaction between Ru and Co3O4 for promoted catalytic decomposition of N2O over the Rux-Co3O4 catalysts. Molecular Catalysis, 435: 174-181.

Tan, Y.H., Davis, J.A., Fujikawa, K., Ganesh, N.V., Demchenko, A.V., and Stine, K.J. 2012. Surface area and pore size characteristics of nanoporous gold subjected to thermal, mechanical, or surface modification studied using gas adsorption isotherms, cyclic voltammetry, thermogravimetric analysis, and scanning electron microscopy. Journal of Materials Chemistry, 22 (14): 6733-6745.

Vijayakumar, S., Ponnalagi, A.K., Nagamuthu, S., and Muralidharan, G. 2013. Microwave assisted synthesis of Co3O4 nanoparticles for high-performance supercapacitors. Electrochim. Acta, 106: 500-505.

Wang, Z., Qu, S., Cheng, Y., Zheng, C., Chen, S., and Wu, H. 2017. Facile synthesis of Co3O4 spheres and their unexpected high specific discharge capacity for Lithium-ion batteries. Applied Surface Science, 416: 338-343.

Zarnegar, Z., Safari, J., and Mansouri-Kafroudi, Z. 2015. Environmentally benign synthesis of polyhydroquinolines by Co3O4–CNT as an efficient heterogeneous catalyst. Catalysis Communications, 59: 216-221.






__________________________________________________________________________________________________________________________

Journal of Research and Technology by Jurnal Teknik Unusida is licensed under a Creative Commons Attribution 4.0 International License. Based on a work at http://journal.unusida.ac.id. E-ISSN: 2477 - 6165, P-ISSN: 2460 - 5972

Sponsored by:     Creative Commons License