Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Qing Xu"'
Publikováno v:
Chemistry, an Asian journal. 16(20)
2-Pyrrolidones have aroused enormous interest as a useful structural moiety in drug discovery; however, not only does their syntheses suffer from low selectivity and yield, but also it requires high catalyst loadings. The radical cyclization of 1,n-e
Publikováno v:
Chemistry, an Asian journal. 16(5)
Electrochemical synthesis of H2 O2 with high productivity is a significant challenge in electrocatalysis. Herein, we develop Mg-ion contained covalent organic frameworks (MgP-DHTA-COF), comprising stacked 2D layers, well-defined skeletons, and well-o
Publikováno v:
ACS Catalysis. 7:538-550
Development of high-performance solid acid catalysts for chemicals and materials production from bioresourced feedstock has become an important research topic in heterogeneous catalysis for renewable energy and green chemistry. We provide herein a co
Publikováno v:
Catalysis Today. 269:65-73
Rb + - and Cs + -exchanged Beta zeolites (Rb x Na 1− x β and Cs x Na 1− x β) of varying exchange degrees ( x = 0–1.00) were employed to catalyze the gas-phase dehydration of lactic acid (LA) for sustainable production of acrylic acid (AA) in
Autor:
Long Yan, Yao Fu, Bakht Zada, Wen-zhi Li, Qing-Xiang Guo, Qing Xu, Chubai Chen, Mengyuan Chen, Ying-Jie Ma
Publikováno v:
RSC Advances. 6:112477-112485
The synthesis of γ-valerolactone from biomass-derived ethyl levulinate is of great importance for biomass conversion. However, development of efficient catalytic systems which are simple, commercially available, easy for preparation, and large-scale
Autor:
Kehong Ding, Bolian Xu, Yuanhua Ding, Huang Jiejun, Yining Fan, Lei Yu, Yubing Liu, Qing Xu, Wang Yining, Lin Xu
Publikováno v:
RSC Advances. 5:42178-42185
Unexpectedly, L-proline/piperidine was found to be a better recyclable catalyst system than L-proline or piperidine alone in the condensation of acetone to prepare mesityl oxide (MO), an important intermediate in the chemical industry. Binding the ca
Publikováno v:
Catalysis Today. 234:215-222
Tungsten oxides dispersed on Al 2 O 3 , ZrO 2 , and SiO 2 supports were investigated for catalytic dehydration of glycerol (GL) to form acrolein (AC) in the gas phase at 315 °C with aqueous GL (GL concentration: 36.2 wt% or 10 mol%, molar GL/H 2 O =
Publikováno v:
ACS Catalysis. 4:2226-2230
A big challenge in upgrading bio-oxygenate platform molecules is to develop catalysts for the selective oxidation of a nonterminal HO-bonded carbon atom in polyols. We report herein the first finding of a specific selectivity of oxide-supported nano-
Publikováno v:
ACS Catalysis. 4:1931-1943
Hydroxyapatites (HAPm-T) of varying molar Ca/P ratios m (1.58–1.69) and calcination temperatures T (360–700 °C) were prepared and comprehensively characterized by nitrogen adsorption, TG, XPS, XRD, CO2-TPD, and NH3-TPD and were employed to catal
Publikováno v:
Chemical communications (Cambridge, England). 52(14)
The direct redox reaction (galvanic displacement) between Pd(2+) and substrate Si was used to deposit Pd on Si, and the Pd-Si catalysts enabled a chemoselective hydrogenation of para-chloronitrobenzene with the selectivity for para-chloroaniline high