A novel TPPTS-Rh/SiO2 catalyst, prepared by directly modifying a heterogeneous high-surface-area Rh/SiO2 catalyst with water-soluble TPPTS ligands, could decrease the resistance of mass transfer in water/oil biphasic ...A novel TPPTS-Rh/SiO2 catalyst, prepared by directly modifying a heterogeneous high-surface-area Rh/SiO2 catalyst with water-soluble TPPTS ligands, could decrease the resistance of mass transfer in water/oil biphasic media for the hydroformylation of higher olefins. The catalytic performance for hydroformylation on this biphasic TPPTS-Rh/SiO2 catalyst system was higher than those of the traditional biphasic HRhCO(TPPTS)3 systems, owing to the chemical bonds between the highly dispersed Rh metal particles and the TPPTS ligands. The catalyst system is applicable for hydroformylation of higher olefins such as 1-dodecene.展开更多
Based on the concept of intercalation chemistry of layered double hydroxides (LDHs), RhCl(CO)- (TPPTS)2 (TPPTS: P(m-C6H4SO3Na)3) and TPPTS co-intercalated LDHs were successfully synthesized by in situ complexation met...Based on the concept of intercalation chemistry of layered double hydroxides (LDHs), RhCl(CO)- (TPPTS)2 (TPPTS: P(m-C6H4SO3Na)3) and TPPTS co-intercalated LDHs were successfully synthesized by in situ complexation method. Characterizations of structure and composition of composite materials by powder XRD, FT-IR, and ICP-AES techniques confirmed the supramolecular structures of the catalytic species intercalated LDHs. The correlation between catalytic performance of intercalated catalyst and the composition of both host layers and interlayer vip species was also investigated.展开更多
The catalystic recycle of carbonylation of benzyl chloride catalyzed by Pa TPPTS is more and more important for industry application.The effect of acidity has been studied in this paper.
文摘A novel TPPTS-Rh/SiO2 catalyst, prepared by directly modifying a heterogeneous high-surface-area Rh/SiO2 catalyst with water-soluble TPPTS ligands, could decrease the resistance of mass transfer in water/oil biphasic media for the hydroformylation of higher olefins. The catalytic performance for hydroformylation on this biphasic TPPTS-Rh/SiO2 catalyst system was higher than those of the traditional biphasic HRhCO(TPPTS)3 systems, owing to the chemical bonds between the highly dispersed Rh metal particles and the TPPTS ligands. The catalyst system is applicable for hydroformylation of higher olefins such as 1-dodecene.
基金Supported by the Major International Joint Research Program of the National Natural Science Foundation of China (Grant No. 20620130108)the National Natural Sci-ence Foundation of China (Grant No. 20601001)+2 种基金the Program for New Century Excellent Talents in University (Grant No. NCET-05-121)the 111 Project (Grant No. B07004)the Program for Changjiang Scholars and Innovative Research Team in University (Grant No. IRT0406)
文摘Based on the concept of intercalation chemistry of layered double hydroxides (LDHs), RhCl(CO)- (TPPTS)2 (TPPTS: P(m-C6H4SO3Na)3) and TPPTS co-intercalated LDHs were successfully synthesized by in situ complexation method. Characterizations of structure and composition of composite materials by powder XRD, FT-IR, and ICP-AES techniques confirmed the supramolecular structures of the catalytic species intercalated LDHs. The correlation between catalytic performance of intercalated catalyst and the composition of both host layers and interlayer vip species was also investigated.
文摘The catalystic recycle of carbonylation of benzyl chloride catalyzed by Pa TPPTS is more and more important for industry application.The effect of acidity has been studied in this paper.
