氧缺陷三氧化钨纳米线阵列高效电催化合成氨

doi:10.11962/1006-4990.2020-0361

无机盐工业 ›› 2021, Vol. 53 ›› Issue (5): 100-104.doi: 10.11962/1006-4990.2020-0361

氧缺陷三氧化钨纳米线阵列高效电催化合成氨

曹茂启(),龙成梅,孙赛兰,徐平,吴大旺()

黔南民族师范学院化学化工学院,贵州都匀 558000

收稿日期:2020-08-22 出版日期:2021-05-10 发布日期:2021-05-12
通讯作者: 吴大旺
作者简介:曹茂启（1986— ）,男,博士,副教授,主要从事新能源电催化材料研究;Email： caomaoqi@mail.ustc.edu.cn。
基金资助:
贵州省教育厅自然科学基金项目(黔教合KY字[2016]110);贵州省教育厅自然科学基金项目([2015]342);贵州省教育厅自然科学基金项目([2019]213);贵州省教育厅自然科学基金项目([2019]216);贵州省科技厅联合基金项目(黔科合J字LKQS[2013]08号);贵州省科技厅联合基金项目(黔科合LH字[2015]7715);贵州省科技厅联合基金项目(黔科合J字LKQS[2013]06号)

High efficiency electrocatalytic synthesis of ammonia by oxygen deficient WO₃ nanowire arrays

Cao Maoqi(),Long Chengmei,Sun Sailan,Xu Ping,Wu Dawang()

School of Chemistry and Chemical Engineering,Qiannan Normal University for Nationalities,Duyun 558000,China

Received:2020-08-22 Online:2021-05-10 Published:2021-05-12
Contact: Wu Dawang

摘要/Abstract

摘要：

考虑到氨对食品、化工和能源的影响,有效激活惰性N₂合成氨在现代社会中具有十分重要的意义。在晶体结构中引入缺陷来调节材料的化学和物理性能是一种提高材料电催化性能的有效策略。采用Ar⁺等离子体轰击策略在WO₃的纳米线阵列上产生丰富的氧缺陷,氧缺陷WO₃的纳米线阵列（V-WO₃）电催化活化N≡N键,从而在环境条件下实现了高效的直接氨合成。氧元素的X射线光电子能谱测试表明,V-WO₃催化剂具有丰富的氧缺陷,氧缺陷是导致N₂高效电催化转化为NH₃的原因。

关键词: 三氧化钨, 氧缺陷, 电催化合成氨

Abstract:

Considering the significant influence of ammonia on food,chemical industry and energy,the effective activation of inert N₂ production of ammonia plays an important role in modern society.Introducing defects into the crystal structure to regu-late the chemical and physical properties of materials is an effective strategy to improve the electrocatalytic performance of ma-terials.The Ar⁺ plasma bombardment strategy was used to generate abundant oxygen defects on WO₃ nanowire arrays（V-WO₃）. The electrocatalytic activation of N≡N bond by V-WO₃ nanowire arrays was used to achieve efficient direct ammonia syn-thesis under environmental conditions.X-ray photoelectron spectroscopy（XPS） of oxygen element showed that V-WO₃ catalyst was rich in oxygen defects,which led to the efficient electrocatalytic conversion of N₂ to NH₃.

Key words: WO₃, oxygen defect, electrocatalytic synthesis of ammonia

中图分类号:

TQ136.13

曹茂启,龙成梅,孙赛兰,徐平,吴大旺. 氧缺陷三氧化钨纳米线阵列高效电催化合成氨[J]. 无机盐工业, 2021, 53(5): 100-104.

Cao Maoqi,Long Chengmei,Sun Sailan,Xu Ping,Wu Dawang. High efficiency electrocatalytic synthesis of ammonia by oxygen deficient WO₃ nanowire arrays[J]. Inorganic Chemicals Industry, 2021, 53(5): 100-104.

图/表 5

图1

图2

图3

图4

图5

参考文献 13

[1]	程加林, 池永庆, 贾攀锋, 等. 通氨提纯氯化铵转化法制取硫酸钾新工艺研究[J]. 无机盐工业, 2019,51(10):56-59.
[2]	徐梓淮, Nafiu Sadi Bature, 范天博, 等. 铵(氨)循环工艺-碳氨法制备碳酸钙的研究[J]. 无机盐工业, 2019,51(4):32-36.
[3]	孙娜, 尤彩霞, 胡亚伟, 等. 磷尾矿氨循环法分离钙镁制取氢氧化镁碳酸钙的研究[J]. 无机盐工业, 2018,50(3):57-59.
[4]	Licht S, Cui B, Wang B, et al. Ammonia synjournal by N₂ and steam elec-trolysis in molten hydroxide suspensions of nanoscale Fe₂O₃[J]. Science, 2014,345(6197):637-640. doi: 10.1126/science.1254234
[5]	Singh A R, Rohr B A, Schwalbe J A, et al. Electrochemical ammonia synjournal—The selectivity challenge[J]. ACS Catalysis, 2016,7(1):706-709. doi: 10.1021/acscatal.6b03035
[6]	Suryanto B H R, Du H L, Wang D, et al. Challenges and prospects in the catalysis of electroreduction of nitrogen to ammonia[J]. Nature Catalysis, 2019,2(4):290-296. doi: 10.1038/s41929-019-0252-4 pmid: WOS:000464248600008
[7]	Zhang L, Ji X, Ren X, et al. Electrochemical ammonia synjournal via nitrogen reduction reaction on a MoS₂.catalyst:Theoretical and ex-perimental studies[J]. Advanced Materials, 2018,30(28).Doi: 10.1002/adma.201800191. doi: 10.1002/adma.201800191
[8]	Yang X, Nash J, Anibal J, et al. Mechanistic insights into electro-chemical nitrogen reduction reaction on vanadium nitride nanopar-ticles[J]. Journal of the American Chemical Society, 2018,140(41):13387-13391. doi: 10.1021/jacs.8b08379
[9]	Wang L, Xia M, Wang H, et al. Greening ammonia toward the solar ammonia refinery[J]. Joule, 2018,2(6):1055-1074. doi: 10.1016/j.joule.2018.04.017
[10]	Foster S L, Bakovic S I P, Duda R D, et al. Catalysts for nitrogen reduction to ammonia[J]. Nature Catalysis, 2018,1(7):490-500. doi: 10.1038/s41929-018-0092-7
[11]	Hou T, Xiao Y, Cui P, et al. Operando oxygen vacancies for enhan-ced activity and stability toward nitrogen photofixation[J]. Advabced Energy Materials, 2019,9(43).Doi: 10.1002/aenm.201902319. doi: 10.1002/aenm.201902319
[12]	Lawrence N J, Brewer J R, Wang L, et al. Defect engineering in cu-bic cerium oxide nanostructures for catalytic oxidation[J]. Nano Letters, 2011,11(7):2666-2671. doi: 10.1021/nl200722z pmid: 21627100
[13]	Xu L, Jiang Q, Xiao Z, et al. Plasma-engraved Co₃O₄ nanosheets with oxygen vacancies and high surface area for the oxygen evolu-tion reaction[J]. Angewandte Chemie International Edition, 2016,55(17):5277-5281. doi: 10.1002/anie.201600687

首页

全国无机盐信息中心

中国化工学会

无机酸碱盐专业委员会

氧缺陷三氧化钨纳米线阵列高效电催化合成氨

High efficiency electrocatalytic synthesis of ammonia by oxygen deficient WO₃ nanowire arrays

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 5

参考文献 13

相关文章 1

Metrics

本文评价

推荐阅读 10

首 页

氧缺陷三氧化钨纳米线阵列高效电催化合成氨

High efficiency electrocatalytic synthesis of ammonia by oxygen deficient WO3 nanowire arrays

RichHTML

PDF (PC)

可视化

引用本文

使用本文

首页

High efficiency electrocatalytic synthesis of ammonia by oxygen deficient WO₃ nanowire arrays