Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 85, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4870795
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Funding
- directorate of Berkeley Lab
- Office of Science/BES, of the U.S. DoE [DE-AC02-05CH11231]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1055762] Funding Source: National Science Foundation
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An in situ flow electrochemical cell has been designed and fabricated to allow better seal under UHV chamber thus to achieve a good signal to noise ratio in fluorescence yield detection of X-ray absorption spectra for spectroelectrochemical study. The cell also stabilizes the thin silicon nitride membrane window in an effective manner so that the liquid cell remains intact during X-ray absorption experiments. With the improved design of the liquid cell, electrochemical experiments such as cyclic voltammetry have been performed for 10 cycles with a good stability of sample window. Also an operando electrochemical experiment during photoelectrochemistry has been performed on n-type hematite electrode deposited on silicon nitride window. The experiment allows us to observe the formation of two extra electronic transitions before pre edge of O K-edge spectra. (C) 2014 AIP Publishing LLC.
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