#TITLE_ALTERNATIVE#

• Main Author: GIANDITA (NIM : 13706019); Pembimbing : Dr.Ir. Bambang Sunendar, VALENDRA
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17491
• Institution: Institut Teknologi Bandung

Development of automobile industry will increase the production of automobile pollution such as COx, NOx, methane, and other hazardous gas pollution. So that, <br /> <br /> <br /> <br /> <br /> the needs of catalytic converter are getting bigger. In well-made catalytic converter, the active membrane is made by platinum which have high production cost. To reduce the production cost, there is a research that use gamma alumina as an active membrane previously. Gamma alumina has low production cost relatively because it has low forming temperature (500-700oC). This research carried out by using alumina powder to make ceramic foam as the body. Then, the body is coated with gamma alumina membrane by impregnation process of AlOH solution. In this process, the impregnation solution is also added by some variation of chitosan concentration. After that, the green body is provided by <br /> <br /> <br /> <br /> <br /> hydrothermal treatment with variation of processing time. Then, it calcined at 6000C temperature with 2 hours holding time. The characterization that use in this research are XRD, FTIR, SEM, and BET. In XRD testing concluded that <br /> <br /> <br /> <br /> <br /> gamma alumina crystal are successfully formed. It can be see from the presence of three peaks ars diffraction angle 37,340, 45,840, and 67,360. Then, in the FTIR testing can be seen the Al-O bond at 1627 peak and O-H bond at 3448,1 peak. There are also N-H bond at 1419,35 and 3448,1 peak that indicate the presence of residual chitosan impregnation process. In the SEM results, are formed crystal morphology of gamma alumina sheets (plates) as a results of calcium and residual chitosan that previously impregnated into ceramic foam. BET test result showed <br /> <br /> <br /> <br /> <br /> that gamma alumina has large specific surface area, about 132,5338 sq m/g.