Boosting CO hydrogenation to methane over Ni-based ETS-10 zeolite catalyst.

The activation and conversion of the CO molecule have always been the most vexing challenge due to its chemical inertness. Developing highly active catalysts, which could overcome dynamic limitations, has emerged as a provable and effective method to promote CO activation-conversion. Herein, ETS-10 zeolite-based catalysts, with active nickel species introduced by doping and impregnation, have been employed for CO methanation.

Total Syntheses and Cytotoxicity Evaluation of Coryaurone A and Representative Analogues.

The first total synthesis of coryaurone A, which was originally obtained from L, was achieved via an efficient route with the longest linear sequence of six steps from the commercially available 6-hydroxy-2-benzofuran-3-one in 37% overall yield. A series of representative analogues were synthesized from the same starting material in 4-7 steps with overall yields of 27-56%. The cytotoxicities of these compounds against the leukemia cell line HL-60 and the colon cancer cell line SW480 were determined.

Synthesis of Hierarchical Porous SAPO-34 and Its Catalytic Activity for 4,6-Dimethyldibenzothiophene.

Zeolite SAPO-34 has been widely used in the industry because of its special pore structure and wide distribution of acid sites in the pore channel. However, traditional SAPO-34 with a small pore size suffers from carbon deposition and deactivation in catalytic reactions, and its inability to catalytically convert bulky organic molecules limits its industrial application. Meanwhile, impurities of SAPO-5, which have weak acidity leading to rapid catalyst deactivation, appear in SAPO-34 zeolite.

Synthesis and Cytotoxic Evaluation of Sanjoseolide and Representative Analogues.

The first total synthesis of sanjoseolide (), which was originally obtained from A, was achieved via an efficient route with a longest linear sequence of six steps from the commercially available 2,4-dihydroxyacetophenone in 8.6% overall yield. Meanwhile, a series of sanjoseolide representative analogues were synthesized and assessed for their antiproliferative potency against cancer cells of different origins.

The Effect of Ni-ZSM-5 Catalysts on Catalytic Pyrolysis and Hydro-Pyrolysis of Biomass.

With the demand of energy and re-utilization of wastes, the renewable lignocellulosic biomass, has attracted increasing and significant attention for alleviating the growing energy crisis and environment problems. As main components of lignocellulosic biomass, lignin, cellulose, and hemicellulose are connected by hydrogen bond to form a compact skeleton structure, resulting the trenchant condition of biomass pyrolysis. Also, pyrolysis products of above three main constituents contain a large amount of oxygenates that cause low heating value, high corrosiveness, high viscosity, and instability.

The effect of hydrate promoters on gas uptake.

Gas hydrate technology is considered as a promising technology in the fields of gas storage and transportation, gas separation and purification, seawater desalination, and phase-change thermal energy storage. However, to date, the technology is still not commercially used mainly due to the low gas hydrate formation rate and the low gas uptake. In this study, the effect of hydrate promoters on gas uptake was systematically studied and analyzed based on hydrate-based CH storage and CO capture from CO/H gas mixture experiments.