A three-way catalyst comprised novel oxygen storage components for emission control in natural gas powered engines was prepared. The addition of novel oxygen storage components to the Pd/γ-Al2O3 catalysts resulted ...A three-way catalyst comprised novel oxygen storage components for emission control in natural gas powered engines was prepared. The addition of novel oxygen storage components to the Pd/γ-Al2O3 catalysts resulted in improved activities of the fresh and aged catalyst by lowering the light-off temperature for methane in natural gas engines exhaust.展开更多
As chemically inert elements,the variations of noble gas abundance and isotope during geologi-cal processes are not significantly affected by complex chemical process but mainly depend onthe control of physical proces...As chemically inert elements,the variations of noble gas abundance and isotope during geologi-cal processes are not significantly affected by complex chemical process but mainly depend onthe control of physical processes such as solution,absorption,adsorption and nuclear reac-tions.Therefore,studies on noble gas geochemistry will play an important role in the geologi-cal processes such as genesis of natural gas.For this purpose,this study has measured 4 CH<sub>4</sub>-rich natural gases in sedimentary basins from Central and Southwest China for all noble展开更多
基金the National Natural Science Foundation of China(No:20273043)the Ministry of Education of China for providing financial support for this project
文摘A three-way catalyst comprised novel oxygen storage components for emission control in natural gas powered engines was prepared. The addition of novel oxygen storage components to the Pd/γ-Al2O3 catalysts resulted in improved activities of the fresh and aged catalyst by lowering the light-off temperature for methane in natural gas engines exhaust.
文摘As chemically inert elements,the variations of noble gas abundance and isotope during geologi-cal processes are not significantly affected by complex chemical process but mainly depend onthe control of physical processes such as solution,absorption,adsorption and nuclear reac-tions.Therefore,studies on noble gas geochemistry will play an important role in the geologi-cal processes such as genesis of natural gas.For this purpose,this study has measured 4 CH<sub>4</sub>-rich natural gases in sedimentary basins from Central and Southwest China for all noble
