| Search / Korean Journal of Chemical Engineering |
Korean Chemical Engineering Research,
Vol.54, No.3, 419-424, 2016
Vol.54, No.3, 419-424, 2016
황이 포함된 중형기공성 탄소에 화학적으로 고정화된 H5PMo10V2O40 촉매 상에서 Benzyl Alcohol 산화반응
Benzyl Alcohol Oxidation over H5PMo10V2O40 Catalyst Chemically Immobilized on Sulfur-containing Mesoporous Carbon
황이 포함된 중형기공성 탄소 담체(S-MC)에 화학적으로 고정화된 H5PMo10V2O40 (PMo10V2) 촉매를 제조하고, 이를 Benzyl alcohol 산화반응에 적용해보았다. 먼저 주형물질로 SBA-15, 탄소 전구체로 p-Toluenesulfonic acid를 이용하여 S-MC 지지체를 제조하였다. 이후, PMo10V2 촉매가 화학적으로 고정화될 수 있는 위치를 제공하기 위해 S-MC 지지체의 표면이 양전하를 띠도록 개질시켰다. 전체적으로 음전하를 띠는 [PMo10V2O40]5.를 이용함으로써 PMo10V2를 양이온을 띠는 S-MC 표면에 화학적으로 고정화하였다. 화학적 고정화를 통해 PMo10V2가 분자수준으로 균일하게 분산되었음을 확인하였다. Benzyl alcohol의 기상 산화반응에서 PMo10V2/S-MC 촉매는 무담지 상태의 PMo10V2보다 높은 전화율 및 수율을 나타냈다. PMo10V2/S-MC 촉매의 반응 활성이 향상된 이유는 화학적 고정화를 통해 PMo10V2이 S-MC 지지체에 고르게 분산되었기 때문이다.
H5PMo10V2O40 (PMo10V2) catalyst chemically immobilized on sulfur-containing mesoporous carbon (SMC) was prepared, and it was applied to the benzyl alcohol oxidation reaction. S-MC was synthesized by a templating method using SBA-15 and p-toluenesulfonic acid as a templating agent and a carbon precursor, respectively. S-MC was then modified to have a positive charge, and thus, to provide sites for the immobilization of PMo10V2. By taking advantage of the overall negative charge of [PMo10V2O40]5-, PMo10V2 catalyst was immobilized on the S-MC support as a charge matching component. It was revealed that PMo10V2 species were finely and molecularly dispersed on the S-MC via chemical immobilization. In the vapor-phase oxidation of benzyl alcohol, PMo10V2/S-MC catalyst showed higher conversion of benzyl alcohol and higher yield for benzaldehyde and benzoic acid than unsupported PMo10V2 catalyst. The enhanced catalytic performance of PMo10V2/S-MC was due to fine dispersion of PMo10V2 species on the S-MC via chemical immobilization.
Keywords:
Heteropolyacid catalyst; Sulfur-containing mesoporous carbon; Chemical immobilization; Benzyl alcohol oxidation
[References]
- Sheldon RA, Arends IWCE, Dijksman A, Catal. Today, 57(1-2), 157, 2000
- Sheldon RA, Arends IWCE, Brink GJT, Dijksman A, Acc. Chem. Res., 35(9), 774, 2002
- Zhan BZ, Thompson A, Tetrahedron, 60(13), 2917, 2004
- Mallat T, Baiker A, Chem. Rev., 104(6), 3037, 2004
- Choi JH, Kang TH, Bang Y, Song JH, Song IK, Catal. Commun., 55, 29, 2014
- Mizuno N, Misono M, Chem. Rev., 98(1), 199, 1998
- Youn MH, Park DR, Jung JC, Kim H, Barteau MA, Song IK, Korean J. Chem. Eng., 24(1), 51, 2007
- Song IK, Barteau MA, Korean J. Chem. Eng., 19(4), 567, 2002
- Mori H, Mizuno N, Misono M, J. Catal., 131(1), 133, 1991
- Song IK, Barteau MA, J. Mol. Catal. A-Chem., 212(1-2), 229, 2004
- Damyanova S, Dimitrov L, Mariscal R, Fierro JLG, Petrov L, Sobrados I, Appl. Catal. A: Gen., 256(1-2), 183, 2003
- Kim H, Jung JC, Song IK, Catal. Surv. Asia, 11(3), 114, 2007
- Sulikowski B, Rachwalik R, Appl. Catal. A: Gen., 256(1-2), 173, 2003
- Pozniczek J, Kulszewicz-Bajer I, Zagorska M, Kruczała K, Dyrek K, Bielanski A, Pron A, J. Catal., 132(2), 311, 1991
- Hasik M, Pozniczek J, Piwowarska Z, Dziembai R, Bielanski A, Pron A, J. Mol. Catal. A-Chem., 89(3), 329, 1994
- Nomiya K, Murasaki H, Miwa M, Polyhedron, 5(4), 1031, 1986
- Kim H, Kim P, Lee KY, Yeom SH, Yi J, Song IK, Catal. Today, 111(3-4), 361, 2006
- Kim H, Jung JC, Kim P, Yeom SH, Lee KY, Song IK, J. Mol. Catal. A-Chem., 259(1-2), 150, 2006
- Stein A, Adv. Mater., 15(10), 763, 2003
- Galarneau A, Cambon H, Di Renzo F, Ryoo R, Choi M, Fajula F, New J. Chem., 27(1), 73, 2003
- Lee HI, Joo SH, Kim JH, You DJ, Kim JM, Park JN, Chang H, Pak C, J. Mater. Chem., 19(33), 5934, 2009
- Kim H, Jung JC, Park DR, Baeck SH, Song IK, Appl. Catal. A: Gen., 320, 159, 2007
- Han YJ, Kim JM, Stucky GD, Chem. Mater., 12(8), 2068, 2000
- Caravati M, Grunwaldt JD, Baiker A, Phys. Chem. Chem. Phys., 7(2), 278, 2005
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.