Cationic grafting of poly(tetrahydrofuran) onto the surface of carbon black

✍ Scribed by Norio Tsubokawa; Naoki Takeda; Akira Kanamaru

• Publisher: Elsevier Science
• Year: 1980
• Tongue: English
• Weight: 179 KB
• Volume: 18
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(80)90014-7

✦ Synopsis

Letters to the Editor for cylindrical pores, that is area = (4) (volume in large P. L. WALKER, JR. pores)/(&). This is expected following the disappearance of the A. OYA open super micropores. 0. P. MAHAIAN

This study thus shows that great flexibility exists in the preparation of glassy carbons as catalyst supports. If desired, samples can be prepared which have a system of large pores superimposed on an open super micropore system. On the other hand, samples can also be prepared which only have an open system of large pores. The choice of support will depend upon the size of the reactant and product molecules for the reaction to be catalyzed. If the reaction involves large molecules, such as in the hydrodesulfurization of heavy oils or liquefaction of coal, a glassy carbon having pores of only a large size will be chosen. If on the other hand, a selective catalysis reaction is of interest, such as selective hydrogenation of CO to low molecular weight organics, the presence of a super micropore system will be necessary.