DICP OpenIR
Room-Temperature Electrocatalytic Synthesis of NH3 from H2O and N-2 in a Gas-Liquid-Solid Three-Phase Reactor
Chen, Shiming1,2,3,4; Perathoner, Siglinda1,2,3; Ampelli, Claudio1,2,3; Mebrahtu, Chalachew1,2,3,4; Su, Dangsheng5; Centi, Gabriele1,2,3
KeywordN-2 Activation Nh3 Synthesis Electrocatalysis Fe/cnt Electrocatalytic Reactor
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
2017-08-01
DOI10.1021/acssuschemeng.7b01742
Volume5Issue:8Pages:7393-7400
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordELECTROCHEMICAL SYNTHESIS ; ATMOSPHERIC-PRESSURE ; AMMONIA
AbstractFe2O3-CNT samples are studied for the room temperature electrocatalytic synthesis of NH3 from H2O and N-2 in a gas-liquid-solid three-phase reactor. A 30 wt % iron-oxide loading was found to be optimal. The performances greatly depend on the cell design, where the possibility of ammonia crossover through the membrane has to be inhibited. The reaction conditions also play a significant role. The effect of electrolyte (type, pH, concentration) was investigated in terms of current density, rate of ammonia formation, and Faradaic efficiency in continuous tests up to 24 h of time on stream. A complex effect of the applied voltage was observed. An excellent stability was found for an applied voltage of -1.0 V vs Ag/AgCl. At higher negative applied voltages, the ammonia formation rate and Faradaic selectivity are higher, but with a change of the catalytic performances, although the current densities remain constant for at least 24 h. This effect is interpreted in terms of reduction of the iron-oxide species above a negative voltage threshold, which enhances the side reaction of H+/e(-) recombination to generate H-2 rather than their use to reduce activated N-2 species, possibly located at the interface between iron-oxide and functionalized CNTs.
Language英语
WOS IDWOS:000407410900114
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/149984
Collection中国科学院大连化学物理研究所
Affiliation1.Univ Messina, Dept MIFT, ERIC Aisbl, Vle F Stagno DAlcontres 31, I-98166 Messina, Italy
2.Univ Messina, Dept ChiBioFarAM Ind Chem, ERIC Aisbl, Vle F Stagno DAlcontres 31, I-98166 Messina, Italy
3.INSTM CASPE, Vle F Stagno DAlcontres 31, I-98166 Messina, Italy
4.Rhein Westfal TH Aachen, ITMC, Lehrstuhl Heterogene Katalyse & Tech Chem, Worringerweg 2, D-52074 Aachen, Germany
5.Chinese Acad Sci, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Chen, Shiming,Perathoner, Siglinda,Ampelli, Claudio,et al. Room-Temperature Electrocatalytic Synthesis of NH3 from H2O and N-2 in a Gas-Liquid-Solid Three-Phase Reactor[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2017,5(8):7393-7400.
APA Chen, Shiming,Perathoner, Siglinda,Ampelli, Claudio,Mebrahtu, Chalachew,Su, Dangsheng,&Centi, Gabriele.(2017).Room-Temperature Electrocatalytic Synthesis of NH3 from H2O and N-2 in a Gas-Liquid-Solid Three-Phase Reactor.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,5(8),7393-7400.
MLA Chen, Shiming,et al."Room-Temperature Electrocatalytic Synthesis of NH3 from H2O and N-2 in a Gas-Liquid-Solid Three-Phase Reactor".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 5.8(2017):7393-7400.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Shiming]'s Articles
[Perathoner, Siglinda]'s Articles
[Ampelli, Claudio]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Shiming]'s Articles
[Perathoner, Siglinda]'s Articles
[Ampelli, Claudio]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Shiming]'s Articles
[Perathoner, Siglinda]'s Articles
[Ampelli, Claudio]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.