Journal
NANO LETTERS
Volume 20, Issue 9, Pages 6364-6371Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.0c01801
Keywords
oxide membranes; electrochemistry; operando spectroscopy; XPS nano-FTIR
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Funding
- Office of Basic Energy Sciences (BES), Division of Materials Sciences and Engineering, of the U.S. Department of Energy (DOE), through the Structure and Dynamics of Materials Interfaces program (FVVP) [DE-AC02-05CH11231, KC31SM]
- DOE Office of Basic Energy Sciences [DE-AC02-05CH11231]
- NSF-BSF grant [1906014]
- MEDC [FPU14/02020]
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Free-standing ultrathin (similar to 2 nm) films of several oxides (Al2O3,TiO2, and others) have been developed, which are mechanically robust and transparent to electrons with E-kin >= 200 eV and to photons. We demonstrate their applicability in environmental X-ray photoelectron and infrared spectroscopy for molecular level studies of solidgas (>= 1 bar) and solid-liquid interfaces. These films act as membranes closing a reaction cell and as substrates and electrodes for electrochemical reactions. The remarkable properties of such ultrathin oxides membranes enable atomic/molecular level studies of interfacial phenomena, such as corrosion, catalysis, electrochemical reactions, energy storage, geochemistry, and biology, in a broad range of environmental conditions.
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