This study explores,for the first time,the influence of various C1 gases,such as methane(CH_(4)),carbon dioxide(CO_(2)),and biogas(CH4+CO_(2)),on catalytic pyrolysis of plastic waste(polypropylene)to evaluate their po...This study explores,for the first time,the influence of various C1 gases,such as methane(CH_(4)),carbon dioxide(CO_(2)),and biogas(CH4+CO_(2)),on catalytic pyrolysis of plastic waste(polypropylene)to evaluate their potential in producing aromatic hydrocarbons.Also,this study used the 0.5 wt%,1 wt%,3 wt%,and 5 wt%Ga-modified ZSM-5 catalyst and its reduction-oxidation processed catalysts owing to their promising catalytic properties.According to the results,the highest yield(39.5 wt%)of BTEX(benzene,toluene,xylene,and ethylbenzene)was achieved under CH4 over RO-GHZ(1)catalyst among all tested conditions.The reduction-oxidation process not only promotes a significant reduction of the Ga-size but also induces its diffusion inside the pore,compared to GHZ(1).This leads to the formation of highly active GaO^(+)ionic species,balancing the Lewis/Brönsted ratio,thereby accelerating the aromatization reaction.The effect of Ga loading on the RO-GHZ catalyst was also evaluated systematically,which showed a negative impact on the BTEX yield owing to the lowering in the concentration of active GaO+species.A detailed catalyst characterization supports the experimental results well.展开更多
Over the last decade,there has been significant effort dedicated to both fundamental research and practical applications of biomass-derived materials,including electrocatalytic energy conversion and various functional...Over the last decade,there has been significant effort dedicated to both fundamental research and practical applications of biomass-derived materials,including electrocatalytic energy conversion and various functional energy storage devices.Beyond their sustainability,eco-friendliness,structural diversity,and biodegradability,biomass-derived materials provide additional benefits,including naturally organized hierarchical structures,rich surface properties,and an abundance of heteroatoms.These characteristics make them appealing candidates for effective energy storage and electrocatalytic energy conversion applications.This review explores the recent advancements in biomass-derived materials for energy storage system(ESS),including supercapacitors and electrocatalytic reactions.We also address the scientific and technical hurdles associated with these materials and outline potential avenues for future research on biomass-based energy conversion applications.By emphasizing the significance of controllable structural designs and modifications,we highlight their crucial roles in advancing this field.展开更多
文摘This study explores,for the first time,the influence of various C1 gases,such as methane(CH_(4)),carbon dioxide(CO_(2)),and biogas(CH4+CO_(2)),on catalytic pyrolysis of plastic waste(polypropylene)to evaluate their potential in producing aromatic hydrocarbons.Also,this study used the 0.5 wt%,1 wt%,3 wt%,and 5 wt%Ga-modified ZSM-5 catalyst and its reduction-oxidation processed catalysts owing to their promising catalytic properties.According to the results,the highest yield(39.5 wt%)of BTEX(benzene,toluene,xylene,and ethylbenzene)was achieved under CH4 over RO-GHZ(1)catalyst among all tested conditions.The reduction-oxidation process not only promotes a significant reduction of the Ga-size but also induces its diffusion inside the pore,compared to GHZ(1).This leads to the formation of highly active GaO^(+)ionic species,balancing the Lewis/Brönsted ratio,thereby accelerating the aromatization reaction.The effect of Ga loading on the RO-GHZ catalyst was also evaluated systematically,which showed a negative impact on the BTEX yield owing to the lowering in the concentration of active GaO+species.A detailed catalyst characterization supports the experimental results well.
基金the National Research Foundation of Korea(NRF),funded by the Korean government(MSIT)(NRF-2022R1C1C1011570).
文摘Over the last decade,there has been significant effort dedicated to both fundamental research and practical applications of biomass-derived materials,including electrocatalytic energy conversion and various functional energy storage devices.Beyond their sustainability,eco-friendliness,structural diversity,and biodegradability,biomass-derived materials provide additional benefits,including naturally organized hierarchical structures,rich surface properties,and an abundance of heteroatoms.These characteristics make them appealing candidates for effective energy storage and electrocatalytic energy conversion applications.This review explores the recent advancements in biomass-derived materials for energy storage system(ESS),including supercapacitors and electrocatalytic reactions.We also address the scientific and technical hurdles associated with these materials and outline potential avenues for future research on biomass-based energy conversion applications.By emphasizing the significance of controllable structural designs and modifications,we highlight their crucial roles in advancing this field.
