A Spectroscopic Study On The Nitrogen Electrochemical .
Supplementary Materials forA Spectroscopic Study on the Nitrogen ElectrochemicalReduction Reaction on Gold and Platinum SurfacesYao Yao a,b, Shangqian Zhu a, Haijiang Wang c, Hui Li b, Minhua Shao a,*aDepartment of Chemical and Biological Engineering, The Hong Kong University of Science andTechnology, Clear Water Bay, Kowloon, Hong KongbDepartment of Materials Science and Engineering, South University of Science and Technology ofChina, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, Guangdong 518055, Chinac Departmentof Mechanical and Energy Engineering, South University of Science and Technology ofChina, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, Guangdong 518055, ChinaCorrespondence to: kemshao@ust.hkS1
Table of ContentsCV of Au thin-film in an Ar-saturated KOH electrolyte . 3Infrared spectroscopy of ammonia water in a KOH solution using ZnSe prism aswindow . 4Subtractive infrared spectroscopy of ammonia water in a KOH solution using Au film Si prism as window . 5The repeated FTIR spectra of Au film in N2-saturated 0.1M KOH. 6The repeated FTIR spectra of Au film in Ar-saturated 0.1M KOH. 7FTIR spectrum of Au film in an Ar-saturated KOH electrolyte at the 2nd segment . 8The CV of Pt film in a N2-saturated KOH electrolyte . 9The calibration curve of the ammonia meter . 10Current–time plot of the Au foil . 11S2
CV of Au thin-film in an Ar-saturated KOH electrolyteFigure S1. The cyclic voltammograms of Au thin-film supported on a Si prism in Ar-saturated 0.1M KOHaqueous solution; potential scan rate: 2.5mV s-1.S3
Infrared spectroscopy of ammonia water in a KOH solution using ZnSeprism as windowFigure S2. a) IR spectrum of 0.7M NH3·H2O (black line) and 1M NH3·H2O (red line) in a 0.1M KOH solutionwhen using ZnSe prism as window. The reference spectrum was taken in a 0.1M KOH solution. b)Subtractive IR spectrum between 1M NH3·H2O and 0.7M NH3·H2O in a 0.1M KOH solution when using ZnSeprism as window.S4
Subtractive infrared spectroscopy of ammonia water in a KOH solutionusing Au film - Si prism as windowFigure S3. Subtractive IR spectrum between 1M NH3·H2O and 0.7M NH3·H2O in a 0.1M KOH solution whenusing Au film- Si prism as window.S5
The repeated FTIR spectra of Au film in N2-saturated 0.1M KOHFigure S4. FTIR spectra during the 1st segment from 0.4 V to -0.5 V on the Au film electrode in a N2-saturaed0.1 M KOH solution. The reference spectrum was taken at 0.4 V.S6
The repeated FTIR spectra of Au film in Ar-saturated 0.1M KOHFigure S5. FTIR spectra during the 1st segment from 0.4 V to -0.5 V on the Au film electrode in a Ar-saturaed0.1 M KOH solution. The reference spectrum was taken at 0.4 V.S7
FTIR spectrum of Au film in an Ar-saturated KOH electrolyte at the 2ndsegmentFigure S6. The FTIR spectra recorded in the 2nd segment from -0.5 V to 1.0 V on the Au film electrode inAr-saturated 0.1M KOH aqueous solution. The background spectrum was taken at -0.5 V.S8
The CV of Pt film in a N2-saturated KOH electrolyteFigure S7. The cyclic voltammograms of Pt film electrode supported on a Si prism in N2-saturated 1M KOHaqueous solution. The potential scan rate: 2.5mV s-1.S9
The calibration curve of the ammonia meterFigure S8. Calibration of ammonia meter for NH4 measurement in a 1mM H2SO4 solution.S 10
Current–time plot of the Au foilFigure S9. Current–time plot of the Au foil at -0.5 V in a N2-saturated 0.1M KOH solution.S 11
S 1 Supplementary Materials for A Spectroscopic Study on the Nitrogen Electrochemical Reduction Reaction on Gold and Platinum Surfaces Yao Yao a,b, Shangqian Zhu a, Haijiang Wang c, Hui Li b, Minhua Shao a,* a Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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Le genou de Lucy. Odile Jacob. 1999. Coppens Y. Pré-textes. L’homme préhistorique en morceaux. Eds Odile Jacob. 2011. Costentin J., Delaveau P. Café, thé, chocolat, les bons effets sur le cerveau et pour le corps. Editions Odile Jacob. 2010. 3 Crawford M., Marsh D. The driving force : food in human evolution and the future.
