Mokyeon Cho, Hyungkuk Ju, Sooan Bae, Sungyool Bong, Jaeyoung Lee
{"title":"在改良晶体结构的 Cu3PS4 电催化剂上进行规模化氨合成","authors":"Mokyeon Cho, Hyungkuk Ju, Sooan Bae, Sungyool Bong, Jaeyoung Lee","doi":"10.1016/j.electacta.2024.145166","DOIUrl":null,"url":null,"abstract":"Ammonia production, which is vital for agricultural and industrial applications, typically relies on energy-intensive processes that contribute to global CO<sub>2</sub> emissions. Electrochemical nitrogen reduction is a promising alternative, although it faces challenges such as low yield and selectivity. Transition-metal-based catalysts, particularly Cu, are promising for overcoming these limitations. Cu<sub>3</sub>PS<sub>4</sub> catalysts were synthesized and evaluated using a 9 cm<sup>2</sup>-scale electrode, revealing enhanced performance attributed to change in the crystal and electronic structure of Cu, facilitating N<sub>2</sub> adsorption and improving the reaction activity. Notably, the ammonia synthesis rate reached 128 μg h<sup>-1</sup> mg<sub>cat</sub><sup>-1</sup> at -1.0 V vs. RHE and faradaic efficiency was 34% at -0.8 V vs. RHE. These findings provide potential insights into the improvement of practical electrochemical synthesis of ammonia.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":null,"pages":null},"PeriodicalIF":5.5000,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Scalable ammonia synthesis on the modified crystal structure of Cu3PS4 electrocatalyst\",\"authors\":\"Mokyeon Cho, Hyungkuk Ju, Sooan Bae, Sungyool Bong, Jaeyoung Lee\",\"doi\":\"10.1016/j.electacta.2024.145166\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ammonia production, which is vital for agricultural and industrial applications, typically relies on energy-intensive processes that contribute to global CO<sub>2</sub> emissions. Electrochemical nitrogen reduction is a promising alternative, although it faces challenges such as low yield and selectivity. Transition-metal-based catalysts, particularly Cu, are promising for overcoming these limitations. Cu<sub>3</sub>PS<sub>4</sub> catalysts were synthesized and evaluated using a 9 cm<sup>2</sup>-scale electrode, revealing enhanced performance attributed to change in the crystal and electronic structure of Cu, facilitating N<sub>2</sub> adsorption and improving the reaction activity. Notably, the ammonia synthesis rate reached 128 μg h<sup>-1</sup> mg<sub>cat</sub><sup>-1</sup> at -1.0 V vs. RHE and faradaic efficiency was 34% at -0.8 V vs. RHE. These findings provide potential insights into the improvement of practical electrochemical synthesis of ammonia.\",\"PeriodicalId\":305,\"journal\":{\"name\":\"Electrochimica Acta\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.5000,\"publicationDate\":\"2024-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrochimica Acta\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1016/j.electacta.2024.145166\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochimica Acta","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.electacta.2024.145166","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
Scalable ammonia synthesis on the modified crystal structure of Cu3PS4 electrocatalyst
Ammonia production, which is vital for agricultural and industrial applications, typically relies on energy-intensive processes that contribute to global CO2 emissions. Electrochemical nitrogen reduction is a promising alternative, although it faces challenges such as low yield and selectivity. Transition-metal-based catalysts, particularly Cu, are promising for overcoming these limitations. Cu3PS4 catalysts were synthesized and evaluated using a 9 cm2-scale electrode, revealing enhanced performance attributed to change in the crystal and electronic structure of Cu, facilitating N2 adsorption and improving the reaction activity. Notably, the ammonia synthesis rate reached 128 μg h-1 mgcat-1 at -1.0 V vs. RHE and faradaic efficiency was 34% at -0.8 V vs. RHE. These findings provide potential insights into the improvement of practical electrochemical synthesis of ammonia.
期刊介绍:
Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.