In situ Raman Spectroscopic Measurement of Surface pH Value Changes during Electrochemical Reactions
نویسندگان
چکیده
Experimental: Chemicals and Materials: The Pt black (~10 nm, ~20 m/g) was purchased from JohnsonMatthey. HClO4 (70%, Cl < 0.1 101 ppm, GFS chemicals), MeOH (>99.8%, Sigma-Alorich, A.C.S. Reagent) and High-Pure Milli-Q H2O (18.2 MΩ, TOC<2ppb) were used to make the solutions. Ultrapure Ar (GTS•Welco, 99.999%, THC<0.5ppm) and O2 gas (GTS•Welco, 99.993%, THC<1ppm) were used as-received to make anaerobic pristine, MeOH-containing, or O2-saturated electrolyte solutions.
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