TY - JOUR
T1 - Selective oxidation of p-chlorotoluene to p-chlorobenzaldehyde with molecular oxygen over zirconium-doped manganese oxide materials
AU - Zhang, Teng
AU - Deng, Yi Qiang
AU - Zhou, Wei Fang
AU - Au, Chak Tong
AU - Yin, Shuang Feng
N1 - Funding Information:
This project was financially supported by the NSFC (U1162109, 21273067, J1210040) as well as by the program for New Century Excellent Talents in Universities (NCET-10-0371), Program for Changjiang Scholars and Innovative Research Team in University (IRT1238), and Fundamental Research Funds for the Central Universities. C.T. Au thanks the Hunan University for an adjunct professorship.
PY - 2014/3/15
Y1 - 2014/3/15
N2 - Nano-fibrous zirconium-doped manganese oxide octahedral molecular sieves (denoted as Zr-OMS-2) were prepared and characterized by XRD, SEM, EDXS, FTIR, NH3-TPD, and N2 adsorption-desorption techniques. The materials were used as catalysts for liquid-phase aerobic oxidation of p-chlorotoluene to p-chlorobenzaldehyde. The Zr-OMS-2 catalysts show much higher catalytic activities than OMS-2, and the Zr-OMS-2 with 6wt% Zr content shows the highest activity, giving approximately 93% p-chlorotoluene conversion and 86% p-chlorobenzaldehyde selectivity in 10h at 100°C. The promotion effect of Zr is deduced to be related with the suitable acidity and the enhancement of specific surface area. In addition, effects of reaction parameters such as catalyst amount, oxygen flow, temperature and time were studied.
AB - Nano-fibrous zirconium-doped manganese oxide octahedral molecular sieves (denoted as Zr-OMS-2) were prepared and characterized by XRD, SEM, EDXS, FTIR, NH3-TPD, and N2 adsorption-desorption techniques. The materials were used as catalysts for liquid-phase aerobic oxidation of p-chlorotoluene to p-chlorobenzaldehyde. The Zr-OMS-2 catalysts show much higher catalytic activities than OMS-2, and the Zr-OMS-2 with 6wt% Zr content shows the highest activity, giving approximately 93% p-chlorotoluene conversion and 86% p-chlorobenzaldehyde selectivity in 10h at 100°C. The promotion effect of Zr is deduced to be related with the suitable acidity and the enhancement of specific surface area. In addition, effects of reaction parameters such as catalyst amount, oxygen flow, temperature and time were studied.
KW - OMS-2
KW - Oxygen
KW - P-Chlorobenzaldehyde
KW - P-Chlorotoluene
KW - Zr-OMS-2
UR - http://www.scopus.com/inward/record.url?scp=84893651376&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2013.10.094
DO - 10.1016/j.cej.2013.10.094
M3 - Journal article
AN - SCOPUS:84893651376
SN - 1385-8947
VL - 240
SP - 509
EP - 515
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -