Electrochemical Real-Time Mass Spectrometry (EC-RTMS): Monitoring Electrochemical Reaction Products in Real Time

被引：60
|
作者：
Khanipour, Peyman [1 ,2 ]
Loeffler, Mario [1 ,2 ]
Reichert, Andreas M. [1 ,2 ]
Haase, Felix T. [1 ,3 ]
Mayrhofer, Karl J. J. [1 ,2 ]
Katsounaros, Ioannis [1 ]
机构：
[1] Forschungszentrum Julich GmbH, Helmholtz Inst Erlangen Nurnberg Renewable Energy, IEK 11, Egerlandstr 3, D-91058 Erlangen, Germany
[2] Friedrich Alexander Univ Erlangen Nurnberg, Dept Chem & Biol Engn, Egerlandstr 3, D-91058 Erlangen, Germany
[3] Friedrich Alexander Univ Erlangen Nurnberg, Dept Chem & Pharm, Egerlandstr 3, D-91058 Erlangen, Germany
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 22期
关键词：
analytical chemistry; CO2; reduction; electrochemistry; mass spectrometry; time-resolved product analysis; ELECTROLYTE FUEL-CELL; CO2; REDUCTION; COMBINING VOLTAMMETRY; CARBON-DIOXIDE; OXIDATION; CATALYSTS; PLATINUM; ELECTROREDUCTION; SPECTROSCOPY; DEGRADATION;
D O I：
10.1002/anie.201901923
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Methods that provide real-time information are essential to resolve transients occurring at dynamic interfaces. Now a powerful method is presented that enables the time- and potential-resolved characterization of liquid and gaseous products of electrochemical reactions shortly after their formation. To demonstrate its extraordinary potential, the electrochemical real time mass spectrometry (EC-RTMS) approach is used to determine the products of the CO2 reduction reaction (CO2RR) during potential step or sweep experiments on pristine and insitu anodized copper. The enhanced formation of several C2+ products over C-1 products is tracked directly after copper anodization, with unprecedented temporal resolution. This new technique creates exciting new opportunities for resolving processes that occur at short timescales and eventually for guiding the design of new, robust catalysts for selective electrosynthesis under dynamic operation.
引用
收藏
页码：7273 / 7277
页数：5
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