Carbon dioxide emissions have increased due to the consumption of fossil fuels,making the neutralization and utilization of CO_(2) a pressing issue.As a clean and efficient energy conversion process,electrocatalytic r...Carbon dioxide emissions have increased due to the consumption of fossil fuels,making the neutralization and utilization of CO_(2) a pressing issue.As a clean and efficient energy conversion process,electrocatalytic reduction can reduce carbon dioxide into a series of alcohols and acidic organic molecules,which can effectively realize the utilization and transformation of carbon dioxide.This review focuses on the tuning strategies and structure effects of catalysts for the electrocatalytic CO_(2) reduction reaction(CO_(2)RR).The tuning strategies for the active sites of catalysts have been reviewed from intrinsic and external perspectives.The structure effects for the CO_(2)RR catalysts have also been discussed,such as tandem catalysis,synergistic effects and confinement catalysis.We expect that this review about tuning strategies and structure effects can provide guidance for designing highly efficient CO_(2)RR electrocatalysts.展开更多
Some structural factors to the design of polymer-supported Chiral Catalysts arediscussed, and some new approaches for designing of polymer-supported catalysts arereviewed in this paper
Based on observations from daytime lidars in eastern China,diurnal cycles of the sodium layer over Wuhan(30.5°N,114.6°E)and Beijing(40.5°N,116°E)are investigated.Diurnal variations of Na density,ro...Based on observations from daytime lidars in eastern China,diurnal cycles of the sodium layer over Wuhan(30.5°N,114.6°E)and Beijing(40.5°N,116°E)are investigated.Diurnal variations of Na density,root mean square(RMS)layer width,and centroid height of the sodium layer are analyzed.Results reveal that the large diurnal cycles of the sodium layer are controlled mainly by 24-hr oscillations at the two observation sites.The diurnal variation of the sodium layer over Wuhan was modulated mainly by tidal perturbations during the lidar observation campaign.Conversely,the diurnal variation over Beijing was controlled principally by photoionization and photochemistry effects during another campaign,and there was little evidence of direct tidal perturbations.These comparisons suggest that the diurnal variation of the sodium layer perhaps has obvious regional characteristics across China.The variation can be either controlled mainly by tidal perturbations or by photoionization and photochemistry effects in different seasons.展开更多
文摘Carbon dioxide emissions have increased due to the consumption of fossil fuels,making the neutralization and utilization of CO_(2) a pressing issue.As a clean and efficient energy conversion process,electrocatalytic reduction can reduce carbon dioxide into a series of alcohols and acidic organic molecules,which can effectively realize the utilization and transformation of carbon dioxide.This review focuses on the tuning strategies and structure effects of catalysts for the electrocatalytic CO_(2) reduction reaction(CO_(2)RR).The tuning strategies for the active sites of catalysts have been reviewed from intrinsic and external perspectives.The structure effects for the CO_(2)RR catalysts have also been discussed,such as tandem catalysis,synergistic effects and confinement catalysis.We expect that this review about tuning strategies and structure effects can provide guidance for designing highly efficient CO_(2)RR electrocatalysts.
文摘Some structural factors to the design of polymer-supported Chiral Catalysts arediscussed, and some new approaches for designing of polymer-supported catalysts arereviewed in this paper
基金financially supported by the National Natural Science Foundation of China(Grant No.41264006)the China Postdoctoral Science Foundation(Grant No.20110490609)+1 种基金the Natural Science Foundation of Hainan Province(Grant Nos.413127,20154191)partially supported by the National Natural Science Foundation of China(Grant Nos.40905012,41174129)
文摘Based on observations from daytime lidars in eastern China,diurnal cycles of the sodium layer over Wuhan(30.5°N,114.6°E)and Beijing(40.5°N,116°E)are investigated.Diurnal variations of Na density,root mean square(RMS)layer width,and centroid height of the sodium layer are analyzed.Results reveal that the large diurnal cycles of the sodium layer are controlled mainly by 24-hr oscillations at the two observation sites.The diurnal variation of the sodium layer over Wuhan was modulated mainly by tidal perturbations during the lidar observation campaign.Conversely,the diurnal variation over Beijing was controlled principally by photoionization and photochemistry effects during another campaign,and there was little evidence of direct tidal perturbations.These comparisons suggest that the diurnal variation of the sodium layer perhaps has obvious regional characteristics across China.The variation can be either controlled mainly by tidal perturbations or by photoionization and photochemistry effects in different seasons.
