Pseudo-boehmite (PB) and γ-Al2O3 support are prepared by neutralization ofNaAlO2 solution with CO2(mixed gases) on bench scale. PB, typically loosely packed, fibrous particle/aggregate, is obtained by adjustingconcen...Pseudo-boehmite (PB) and γ-Al2O3 support are prepared by neutralization ofNaAlO2 solution with CO2(mixed gases) on bench scale. PB, typically loosely packed, fibrous particle/aggregate, is obtained by adjustingconcentration and flow rate of CO2 and concentration of NaAlO2 solution at a pH level lower than that commonlyassumed during neutralization. After calcination at different temperatures, γ-Al2O3 supports with different pore vol-ume and different pore size are prepared at different conditions.展开更多
The identity transformation of China is analyzed through the legal punishment given by China＇s National Development and Reform Commission on Japanese automotive parts and bearings enterprises that broke China＇s Mono...The identity transformation of China is analyzed through the legal punishment given by China＇s National Development and Reform Commission on Japanese automotive parts and bearings enterprises that broke China＇s Monopoly Law by price- fixing in the automotive parts market of China for more than ten years. The standards for illegal conduction this penalty based are the international Cartel rules, the specific legal procedure is beyond the main concern of this study so the obscurity of how this penalty decided is kept aside for the sake of respecting the painstaking labor fruits of relevant executive departments as well as for dispensing political sensitivity related to any academic analysis developed. Three Japanese newspaper reports concerning this penalty fine are selected for critical discourse analysis. Emotional ambience of them is derogative, neutral, and approving respectively. Foucault＇s triad relationship of discourse-power-identity is borrowed and the postmodernists＇ view of the ＂other＂ is corroborated with the self-presentation of China. Positive self-presentation is underscored by the contrast of negative other-presentation and vice versa, the negative commendation on this punishment event revealed in certain news coverage is to lessen the negative image of Japanese enterprises because of their shared Japanese identity. However their fundamental tone maybe, the fact that China evolves to be able to handle the illegal international events in its confines with dignity is tacitly recognized as a warning in three newspapers. The new identity of China is thus highlighted as the role of the other by the Japanese media. The reason why Japanese accept it instead of staging substantial resistance is analyzed from the Japanese cultural considerations of the hierarchical sequence or the ＂weizhiyishi＂ （positional consciousness or postural consciousness）, and the practical reasons of why Hitachi and Nachi commit self-confession is analyzed. All these responses from Japanese side are the manifestation of China＇s being in charge of the situation, it has the ball at its feet in this power gaming.展开更多
The electrochemical CO_(2)reduction reaction(CO_(2)RR)to yield high-value added fuels and chemicals provides a promising approach towards global carbon neutrality.Constant endeavors have been devoted to the exploratio...The electrochemical CO_(2)reduction reaction(CO_(2)RR)to yield high-value added fuels and chemicals provides a promising approach towards global carbon neutrality.Constant endeavors have been devoted to the exploration of high-efficiency catalyst with rapid reaction kinetics,low energy input,and high selectivity.In addition to the maximum metal atomic utilization and unique catalytic performance of single-atom catalyst(SAC),dual-atomic-site catalysts(DASCs)offer more sophisticated and tunable atomic structure through the modulations of another adjacent metal atom,which can bring new opportunities for CO_(2)RR as a deeper extension of SACs and have recently aroused surging interest.In this review,we highlight the recent advances on DASCs for enhancing CO_(2)RR.First,the classification,synthesis,and identification of DASCs are provided according to the geometric structure and electronic configuration of dual-atomic active sites.Then,the catalytic applications of DASCs in CO_(2)RR are categorized based on marriage-type,hetero-nuclear,and homo-nuclear dual-atomic sites.Particularly,the structure-activity relationship of DASCs in CO_(2)RR is elaborately summarized through systematically analyzing the reaction pathways and the atom structures.Finally,the opportunities and challenges are proposed for inspiring the design of future DASCs with high structural accuracy and high CO_(2)RR activity and selectivity.展开更多
文摘Pseudo-boehmite (PB) and γ-Al2O3 support are prepared by neutralization ofNaAlO2 solution with CO2(mixed gases) on bench scale. PB, typically loosely packed, fibrous particle/aggregate, is obtained by adjustingconcentration and flow rate of CO2 and concentration of NaAlO2 solution at a pH level lower than that commonlyassumed during neutralization. After calcination at different temperatures, γ-Al2O3 supports with different pore vol-ume and different pore size are prepared at different conditions.
文摘The identity transformation of China is analyzed through the legal punishment given by China＇s National Development and Reform Commission on Japanese automotive parts and bearings enterprises that broke China＇s Monopoly Law by price- fixing in the automotive parts market of China for more than ten years. The standards for illegal conduction this penalty based are the international Cartel rules, the specific legal procedure is beyond the main concern of this study so the obscurity of how this penalty decided is kept aside for the sake of respecting the painstaking labor fruits of relevant executive departments as well as for dispensing political sensitivity related to any academic analysis developed. Three Japanese newspaper reports concerning this penalty fine are selected for critical discourse analysis. Emotional ambience of them is derogative, neutral, and approving respectively. Foucault＇s triad relationship of discourse-power-identity is borrowed and the postmodernists＇ view of the ＂other＂ is corroborated with the self-presentation of China. Positive self-presentation is underscored by the contrast of negative other-presentation and vice versa, the negative commendation on this punishment event revealed in certain news coverage is to lessen the negative image of Japanese enterprises because of their shared Japanese identity. However their fundamental tone maybe, the fact that China evolves to be able to handle the illegal international events in its confines with dignity is tacitly recognized as a warning in three newspapers. The new identity of China is thus highlighted as the role of the other by the Japanese media. The reason why Japanese accept it instead of staging substantial resistance is analyzed from the Japanese cultural considerations of the hierarchical sequence or the ＂weizhiyishi＂ （positional consciousness or postural consciousness）, and the practical reasons of why Hitachi and Nachi commit self-confession is analyzed. All these responses from Japanese side are the manifestation of China＇s being in charge of the situation, it has the ball at its feet in this power gaming.
基金supported by Shandong Provincial Natural Science Foundation (ZR2019BB025)the Project of “20 items of University” of Jinan (2018GXRC031)the National Natural Science Foundation of China (22071172)
文摘The electrochemical CO_(2)reduction reaction(CO_(2)RR)to yield high-value added fuels and chemicals provides a promising approach towards global carbon neutrality.Constant endeavors have been devoted to the exploration of high-efficiency catalyst with rapid reaction kinetics,low energy input,and high selectivity.In addition to the maximum metal atomic utilization and unique catalytic performance of single-atom catalyst(SAC),dual-atomic-site catalysts(DASCs)offer more sophisticated and tunable atomic structure through the modulations of another adjacent metal atom,which can bring new opportunities for CO_(2)RR as a deeper extension of SACs and have recently aroused surging interest.In this review,we highlight the recent advances on DASCs for enhancing CO_(2)RR.First,the classification,synthesis,and identification of DASCs are provided according to the geometric structure and electronic configuration of dual-atomic active sites.Then,the catalytic applications of DASCs in CO_(2)RR are categorized based on marriage-type,hetero-nuclear,and homo-nuclear dual-atomic sites.Particularly,the structure-activity relationship of DASCs in CO_(2)RR is elaborately summarized through systematically analyzing the reaction pathways and the atom structures.Finally,the opportunities and challenges are proposed for inspiring the design of future DASCs with high structural accuracy and high CO_(2)RR activity and selectivity.
