钼修饰硼碳固体材料微介孔结构调制电催化氮气还原  

Electrocatalytic Nitrogen Reduction Modulated by Microporous Structure of Molybdenum Modified Boron-carbon Solid Materials

作　　者：庄全 杨雨彤 张婷婷 王寅[1] Zhuang Quan;Yang Yutong;Zhang Tingting;Wang Yin(College of Chemistry and Materials Science,Nano Innovation Institute,Inner Mongolia Minzu University,Tongliao 028000,China)

机构地区：[1]内蒙古民族大学化学与材料学院纳米创新研究院,内蒙古通辽028000

出　　处：《科学技术创新》2022年第26期34-37,共4页Scientific and Technological Innovation

基　　金：内蒙古自然科学基金(2022MS01013);内蒙古民族大学博士启动基金(BS480,BS437)。

摘　　要：以葡萄糖(C_(6)H_(12)O_(6)·H_(2)O)、硼酸(H_(3)BO_(3))和钼酸钠(Na_(2)MoO_(4)·2H_(2)O)为原料通过钼-硼-碳固相反应调控固体材料微-介孔结构(P-BC、BC、Mo_(2)C@MoO_(2)@C)。P-BC材料具有微-介孔结构,比表面积达418.399 m^(2)/g。在0.1 mol/L氯化氢电解质溶液下,检测其电化学性能结果显示,P-BC材料的介孔微孔结构能够有效改善氨合成的活性以及选择性。-0.2 V vs RHE条件下,最高NH_(3)生成速度是11.2μg h^(-1)mg^(-1)cat,在0 V vs RHE下,法拉第效率高达6.0%,六次循环测试后氨的生成速率稳定性保持89.6%。Glucose(C_(6)H_(12)O_(6)·H_(2)O),Using boric acid(H_(3)BO_(3))and sodium molybdate(Na_(2)MoO_(4)·2H_(2)O)as raw materials,the micromediator structure of solid materials(P-BC,BC,Mo_(2)C@MoO_(2)@c)was used,through molybdenum-boron-carbon solid phase reaction.P-BC material has a micro-mesoporous structure and a specific surface area of 418.399 m^(2)/g.In 0.1 mol/L muriatic acid electrolyte,The electrochemical properties detected indicate that the micro-mesoporous structure of P-BC material can improve the activity and selectivity of ammonia synthesis.At-0.2 V vs RHE,the highest NH_(3)formation rate is 11.2μg h^(-1) mg^(-1) cat.At 0 V vs RHE,the Faraday efficiency is up to 6.0%,and the stability of ammonia generation rate remains 89.6%after six cycles of testing.

关 键 词：电催化氮气还原 硼碳固体材料 硼钼调控 孔结构 

分 类 号：TQ426[化学工程]