CO_(2)capture,utilization,and storage(CCUS)technology is a rare option for the large-scale use of fossil fuels in a low-carbon way,which will definitely play a part in the journey towards carbon neutrality.Within the ...CO_(2)capture,utilization,and storage(CCUS)technology is a rare option for the large-scale use of fossil fuels in a low-carbon way,which will definitely play a part in the journey towards carbon neutrality.Within the CCUS nexus,CCU is especially interesting because these processes will establish a new“atmosphere-to-atmosphere”carbon cycle and thus indirectly offer huge potential in carbon reduction.This study focuses on the new positioning of CCUS in the carbon neutrality scenario and aims to identify potential cutting-edge/disruptive CCU technologies that may find important application opportunities during the decarbonization of the energy and industrial system.To this end,direct air capture(DAC),flexible metal-framework materials(MOFs)for CO_(2)capture,integrated CO_(2)capture and conversion(ICCC),and electrocatalytic CO_(2)reduction(ECR)were selected,and their general introduction,the importance to carbon neutrality,and most up-to-date research progress are summarized.展开更多
Natural gas and shale gas,with methane as the main component,are important and clean fossil energy resources.Direct catalytic conversion of methane to valuable chemicals is considered a crown jewel topic in catalysis....Natural gas and shale gas,with methane as the main component,are important and clean fossil energy resources.Direct catalytic conversion of methane to valuable chemicals is considered a crown jewel topic in catalysis.Substantial studies on processes including methane reforming,oxidative coupling of methane,non-oxidative coupling of methane,etc.have been conducted for many years.However,owing to the intrinsic chemical inertness of CH4,harsh reaction conditions involving either extremely high temperatures or highly oxidative reactants are required to activate the C–H bonds of CH4 in such thermocatalytic processes,which may cause the target products,such as ethylene or methanol,to be further converted into coke or CO and CO2.It is desirable to adopt a new strategy for direct CH4 conversion under mild conditions.Herein,we report that efficient electrocatalytic oxidation of methane to alcohols at ambient temperature and pressure can be achieved using a NiO/Ni hollow fiber electrode.This work opens a new avenue for direct catalytic conversion of CH4.展开更多
Malcolm Bradbury’s novel Rates of Exchange,taking the economic term“rates of exchange”as a central metaphor,depicts various exchanges occurring in the socio-economic landscape of Britain during the 1970s and 1980s....Malcolm Bradbury’s novel Rates of Exchange,taking the economic term“rates of exchange”as a central metaphor,depicts various exchanges occurring in the socio-economic landscape of Britain during the 1970s and 1980s.In the context of governmental emphasis on economic development,the novel intricately explores exchanges among diverse entities,playing with multiple meanings of the term“exchange”.In this way,the novel itself becomes a form of“legal tender,”exchanged for reader comprehension,communication,and participation.It highlights the ubiquitous presence of exchange and the risks associated with the uncertain exchange rates between different entities.Furthermore,it invites readers to participate in the story-telling and the nostalgic journey back to British literary tradition.This paper,drawing on Roland Barthes’s semiotic theory along with structuralist and poststructuralist concepts,investigates the multifaceted meanings of“exchange”in the novel.Through this analysis,the paper aims to illuminate the semiotic significance of various narrative forms and the profound thematic concerns in Bradbury’s work.展开更多
Increasing CO_(2) levels in the atmosphere due to the consumption of large amounts of fossil fuels is exacerbating global climate change,which seriously threatens sustainable human development.As a responsible and res...Increasing CO_(2) levels in the atmosphere due to the consumption of large amounts of fossil fuels is exacerbating global climate change,which seriously threatens sustainable human development.As a responsible and respectable country,China has announced remarkable goals of reaching a carbon emission peak and achieving carbon neutrality,which are challenging missions with enormous contributions to the world.As a strategic support,disruptive and transformative energy technologies are urgently required to develop new green and low-carbon energy industries.Renewable energy sources such as wind and sun,which can generate zero-carbon electric power,have been rapidly developed in recent years.展开更多
基金supported by Shanghai Science and Technology Committee(Grant Nos.21692112200 and 20DZ1207500)Inner Mongolia Science and Technology Department(Grant No.2021ZD0020).
文摘CO_(2)capture,utilization,and storage(CCUS)technology is a rare option for the large-scale use of fossil fuels in a low-carbon way,which will definitely play a part in the journey towards carbon neutrality.Within the CCUS nexus,CCU is especially interesting because these processes will establish a new“atmosphere-to-atmosphere”carbon cycle and thus indirectly offer huge potential in carbon reduction.This study focuses on the new positioning of CCUS in the carbon neutrality scenario and aims to identify potential cutting-edge/disruptive CCU technologies that may find important application opportunities during the decarbonization of the energy and industrial system.To this end,direct air capture(DAC),flexible metal-framework materials(MOFs)for CO_(2)capture,integrated CO_(2)capture and conversion(ICCC),and electrocatalytic CO_(2)reduction(ECR)were selected,and their general introduction,the importance to carbon neutrality,and most up-to-date research progress are summarized.
文摘Natural gas and shale gas,with methane as the main component,are important and clean fossil energy resources.Direct catalytic conversion of methane to valuable chemicals is considered a crown jewel topic in catalysis.Substantial studies on processes including methane reforming,oxidative coupling of methane,non-oxidative coupling of methane,etc.have been conducted for many years.However,owing to the intrinsic chemical inertness of CH4,harsh reaction conditions involving either extremely high temperatures or highly oxidative reactants are required to activate the C–H bonds of CH4 in such thermocatalytic processes,which may cause the target products,such as ethylene or methanol,to be further converted into coke or CO and CO2.It is desirable to adopt a new strategy for direct CH4 conversion under mild conditions.Herein,we report that efficient electrocatalytic oxidation of methane to alcohols at ambient temperature and pressure can be achieved using a NiO/Ni hollow fiber electrode.This work opens a new avenue for direct catalytic conversion of CH4.
基金supported by the Project of Social Science Foundation of Jiangsu Province in 2020 under No.20WWB008(“A Study of Cultural Geography in Contemporary Anglo-American Academic Fiction”)National Social Science Foundation Project in 2023 under No.23BWW035(“A Study on Social Changes and the Development of Humanities in Contemporary Anglo-American Academic Fiction”).
文摘Malcolm Bradbury’s novel Rates of Exchange,taking the economic term“rates of exchange”as a central metaphor,depicts various exchanges occurring in the socio-economic landscape of Britain during the 1970s and 1980s.In the context of governmental emphasis on economic development,the novel intricately explores exchanges among diverse entities,playing with multiple meanings of the term“exchange”.In this way,the novel itself becomes a form of“legal tender,”exchanged for reader comprehension,communication,and participation.It highlights the ubiquitous presence of exchange and the risks associated with the uncertain exchange rates between different entities.Furthermore,it invites readers to participate in the story-telling and the nostalgic journey back to British literary tradition.This paper,drawing on Roland Barthes’s semiotic theory along with structuralist and poststructuralist concepts,investigates the multifaceted meanings of“exchange”in the novel.Through this analysis,the paper aims to illuminate the semiotic significance of various narrative forms and the profound thematic concerns in Bradbury’s work.
基金supported by the National Natural Science Foundation of China(Nos.91745114 and 21802160)the“Transformational Technologies for Clean Energy and Demonstration,”the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA 21000000)+3 种基金Hundred Talents Program of the Chinese Academy of Sciences(No.2060299)Youth Innovation Promotion Association of the Chinese Academy of Sciences(No.E224301401)Shanghai Sailing Program(No.18YF1425700)Shanghai Functional Platform for Innovation Low-Carbon Technology,and the Major Project of the Science and Technology Department of Inner Mongolia(No.2021ZD0020).
文摘Increasing CO_(2) levels in the atmosphere due to the consumption of large amounts of fossil fuels is exacerbating global climate change,which seriously threatens sustainable human development.As a responsible and respectable country,China has announced remarkable goals of reaching a carbon emission peak and achieving carbon neutrality,which are challenging missions with enormous contributions to the world.As a strategic support,disruptive and transformative energy technologies are urgently required to develop new green and low-carbon energy industries.Renewable energy sources such as wind and sun,which can generate zero-carbon electric power,have been rapidly developed in recent years.
