Ag2O and the Ag foil are reference samples. (b) FT-EXAFS curves. (c, d) WT-EXAFS plots. (e) Fitting of the FT-EXAFS curve of SA-Ag/NC. (f) N 1s XPS spectrum of SA-Ag/NC.X射线吸收近边缘结构(XANES)和扩展X...
要点一:球差电镜+同步辐射证明Ag/TiO2单原子催化剂的成功制备 Fig. 2. (a) AC-HAADF-STEM image of Ag/TiO2. (b) FT-EXAFS spectra of Ag/TiO2, Ag2O and Ag foil. (c) EXAFS k space curves of Ag/TiO2. Inset shows the proposed local structure of single Ag atoms in Ag/TiO2. (d) Ag k...
Cu2O and Cu foil were listed as references. Full size image To understand the structural influence on CO2R pathway, we prepared Ag-Cu heterostructure with six different constitution ratios, denoted as Agx-Cuy (x and y represent the mass fraction of Ag and Cu in the heterostructure, ...
decreased during COR. Since the Cu absorption edge positions of all CuAg samples are nearly identical to that of the standard Cu foil, we believe that the valence state Cu was reduced to its metallic state for all CuAg samples under COR conditions. Rather than valence state, EXAFS fingerprin...
(2) 从Ag/TiO2-NTs的XRD和XPS图能得出, Ag的复合并没有对TiO2纳米管的晶体结构产生影响, 只是以 (Ag0) 形态附着于TiO2纳米管的表面。不同含量的Ag修饰TiO2纳米管表面对其形貌没有影响, 但Ag含量与纳米管表面的纳米Ag颗粒的均匀分布密切相关。控制Ag的含量为4%时可以获得均匀分散于TiO2纳米管表面的尺寸均匀且...
characteristic peaks attributed to the fcc lattice of pure Ag (PDF-04-0783) and Cu (PDF-04-0836) were shown below.f,gXANES spectra (f) and EXAFS spectra (g) of variable Ag-Cu heterostructures with different constitution ratios at the Cu K-edge. Cu2O and Cu foil were listed as ...
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The SERS mechanism of the highly stable S-g- C3N4/Ag substrates was systematically investigated by a combination of experiments and theoretical calculations. From the results of XPS and Raman spectroscopies, it was found that there was a strong interaction between S-g-C3N4 and Ag NPs, which ...
The high-energy-density C3 fuel n-propanol is desired from CO2/CO electroreduction, as evidenced by propanol’s high market price per tonne (approximately US$ 1,400–1,600). However, CO electroreduction to n-propanol has shown low selectivity, limited pr
“Integration of Organic LEDs and Amorphous Si TFTs Onto Flexible and Lightweight Metal Foil Substrates,” IEEE Electron Device Letters, vol. 18, No. 12 (Dec. 1997): pp. 609-612. Yamamoria, A et al., “Doped Organic Light Emitting Diodes having a 650-nm Thick Hole Transport Layer,...