{"title":"构建可持续氨生产的反应系统和调节催化剂活性位点","authors":"Zhe Meng, Miao-Miao Shi, Jun-Min Yan","doi":"10.1021/accountsmr.4c00103","DOIUrl":null,"url":null,"abstract":"Ammonia (NH<sub>3</sub>) is widely used for human life and considered a green energy carrier without CO<sub>2</sub> emissions; thus, green and sustainable NH<sub>3</sub> synthesis is of great importance. The traditional Haber-Bosch process requires harsh conditions with serious environmental implications. Therefore, numerous research is focused on the efficient synthesis of NH<sub>3</sub> from abundant N<sub>2</sub>/air and water under ambient conditions, utilizing renewable energy sources. Despite the fact that the electrocatalytic N<sub>2</sub> reduction reaction (eNRR) is an ideal method for NH<sub>3</sub> synthesis, the NH<sub>3</sub> yield and Faradaic efficiency (FE) are severally hampered by the inertness of N<sub>2</sub>, impeding its industrial application. Various strategies have been proposed to synthesize highly efficient heterogeneous catalysts for N<sub>2</sub> adsorption and dissociation to improve NH<sub>3</sub> yield and FE. Besides, benefiting from the nonthermal plasma N<sub>2</sub> oxidation reaction (pNOR) and electrocatalytic nitrate/nitrite reduction reaction (eNO<sub><i>x</i></sub>RR), the two-step approach overcomes the limitations of eNRR, attracting significant interest. This strategy facilitates N<sub>2</sub> splitting, which is a crucial step in the synthesis of NH<sub>3</sub>. Additionally, eNO<sub><i>x</i></sub>RR involves complex intermediates, making it essential to investigate catalysts with high selectivity of NH<sub>3</sub>. Overall, through the optimization of catalysts and reaction systems, NH<sub>3</sub> can be synthesized with high efficiency. The two-step strategy is the most realistic process for mass NH<sub>3</sub> production, but several challenges still need to be addressed, including improving the overall energy efficiency and scaling up the technology for industrial applications.","PeriodicalId":72040,"journal":{"name":"Accounts of materials research","volume":null,"pages":null},"PeriodicalIF":14.0000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Construction of Reaction System and Regulation of Catalyst Active Sites for Sustainable Ammonia Production\",\"authors\":\"Zhe Meng, Miao-Miao Shi, Jun-Min Yan\",\"doi\":\"10.1021/accountsmr.4c00103\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ammonia (NH<sub>3</sub>) is widely used for human life and considered a green energy carrier without CO<sub>2</sub> emissions; thus, green and sustainable NH<sub>3</sub> synthesis is of great importance. The traditional Haber-Bosch process requires harsh conditions with serious environmental implications. Therefore, numerous research is focused on the efficient synthesis of NH<sub>3</sub> from abundant N<sub>2</sub>/air and water under ambient conditions, utilizing renewable energy sources. Despite the fact that the electrocatalytic N<sub>2</sub> reduction reaction (eNRR) is an ideal method for NH<sub>3</sub> synthesis, the NH<sub>3</sub> yield and Faradaic efficiency (FE) are severally hampered by the inertness of N<sub>2</sub>, impeding its industrial application. Various strategies have been proposed to synthesize highly efficient heterogeneous catalysts for N<sub>2</sub> adsorption and dissociation to improve NH<sub>3</sub> yield and FE. Besides, benefiting from the nonthermal plasma N<sub>2</sub> oxidation reaction (pNOR) and electrocatalytic nitrate/nitrite reduction reaction (eNO<sub><i>x</i></sub>RR), the two-step approach overcomes the limitations of eNRR, attracting significant interest. This strategy facilitates N<sub>2</sub> splitting, which is a crucial step in the synthesis of NH<sub>3</sub>. Additionally, eNO<sub><i>x</i></sub>RR involves complex intermediates, making it essential to investigate catalysts with high selectivity of NH<sub>3</sub>. Overall, through the optimization of catalysts and reaction systems, NH<sub>3</sub> can be synthesized with high efficiency. The two-step strategy is the most realistic process for mass NH<sub>3</sub> production, but several challenges still need to be addressed, including improving the overall energy efficiency and scaling up the technology for industrial applications.\",\"PeriodicalId\":72040,\"journal\":{\"name\":\"Accounts of materials research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":14.0000,\"publicationDate\":\"2024-10-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of materials research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1021/accountsmr.4c00103\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of materials research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1021/accountsmr.4c00103","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Construction of Reaction System and Regulation of Catalyst Active Sites for Sustainable Ammonia Production
Ammonia (NH3) is widely used for human life and considered a green energy carrier without CO2 emissions; thus, green and sustainable NH3 synthesis is of great importance. The traditional Haber-Bosch process requires harsh conditions with serious environmental implications. Therefore, numerous research is focused on the efficient synthesis of NH3 from abundant N2/air and water under ambient conditions, utilizing renewable energy sources. Despite the fact that the electrocatalytic N2 reduction reaction (eNRR) is an ideal method for NH3 synthesis, the NH3 yield and Faradaic efficiency (FE) are severally hampered by the inertness of N2, impeding its industrial application. Various strategies have been proposed to synthesize highly efficient heterogeneous catalysts for N2 adsorption and dissociation to improve NH3 yield and FE. Besides, benefiting from the nonthermal plasma N2 oxidation reaction (pNOR) and electrocatalytic nitrate/nitrite reduction reaction (eNOxRR), the two-step approach overcomes the limitations of eNRR, attracting significant interest. This strategy facilitates N2 splitting, which is a crucial step in the synthesis of NH3. Additionally, eNOxRR involves complex intermediates, making it essential to investigate catalysts with high selectivity of NH3. Overall, through the optimization of catalysts and reaction systems, NH3 can be synthesized with high efficiency. The two-step strategy is the most realistic process for mass NH3 production, but several challenges still need to be addressed, including improving the overall energy efficiency and scaling up the technology for industrial applications.