Direct air capture(DAC)has attracted increasing interest and investment over the past few years.There are a fast-growing number of companies that entered the field and demonstrated DAC carbon removal setups and potent...Direct air capture(DAC)has attracted increasing interest and investment over the past few years.There are a fast-growing number of companies that entered the field and demonstrated DAC carbon removal setups and potential.However,current DAC methods are still based on solid absorbents or alkali solutions approaches which have low capture efficiency and low energy efficiency.This highlight proposed a promising CO_(2) capture technology,an electric energy driven closed-loop system for the direct removal of CO_(2) from ambient air which are based on two individual technologies:Polyam-N-Cu hybrid system promoted CO_(2) capture with ocean as anthropogenic CO_(2) sink and a chloride-mediated electrochemical pH swing system to remove CO_(2) from oceanwater.展开更多
Calcium carbide(CaC_(2))is a sustainable source of acetylene which plays an important role in organic synthesis due to its active triple bonds and terminal protons.Solid CaC_(2) has several advantages over acetylene g...Calcium carbide(CaC_(2))is a sustainable source of acetylene which plays an important role in organic synthesis due to its active triple bonds and terminal protons.Solid CaC_(2) has several advantages over acetylene gas such as easy handling,convenient storage and transportation.The CaC_(2) is considered as a safer and more convenient source of acetylene.The chemistry of the CaC_(2) is not confined to its use as a source of acetylene and its applications are not limited to the known reactions of acetylene.With the CaC_(2) chemistry being actively developing recently,it may eventually lead to the development of new transformations of alkyne chemistry.Herein,this mini review is focused on the synthesis and application of the CaC_(2) in biomass transformations.展开更多
文摘Direct air capture(DAC)has attracted increasing interest and investment over the past few years.There are a fast-growing number of companies that entered the field and demonstrated DAC carbon removal setups and potential.However,current DAC methods are still based on solid absorbents or alkali solutions approaches which have low capture efficiency and low energy efficiency.This highlight proposed a promising CO_(2) capture technology,an electric energy driven closed-loop system for the direct removal of CO_(2) from ambient air which are based on two individual technologies:Polyam-N-Cu hybrid system promoted CO_(2) capture with ocean as anthropogenic CO_(2) sink and a chloride-mediated electrochemical pH swing system to remove CO_(2) from oceanwater.
基金This work was supported by the Institute of Bioengineering and Nanotechnology(Biomedical Research Council,Agency for Science,Technology and Research,Singapore).
文摘Calcium carbide(CaC_(2))is a sustainable source of acetylene which plays an important role in organic synthesis due to its active triple bonds and terminal protons.Solid CaC_(2) has several advantages over acetylene gas such as easy handling,convenient storage and transportation.The CaC_(2) is considered as a safer and more convenient source of acetylene.The chemistry of the CaC_(2) is not confined to its use as a source of acetylene and its applications are not limited to the known reactions of acetylene.With the CaC_(2) chemistry being actively developing recently,it may eventually lead to the development of new transformations of alkyne chemistry.Herein,this mini review is focused on the synthesis and application of the CaC_(2) in biomass transformations.
