(c) Bi2Al4O9和Bi2O3/BiO2的Al 2p和Bi 4f XPS光谱。(d) Bi L1边XANES光谱。(e)HAADF-STEM图像。(f−i) Bi2O3/BiO2异质结的界面结构。(j−m) Bi、O的EDS元素映射图及其对应的能量色散谱。 图3. Bi2O3/BiO2、Bi2Al4O9和Bi的ECO2RR性能。(a) 线性扫描伏安曲线。(b) Bi2O3/BiO2在...
Light wavelengthToxicityBioassayCu(II)/Bi 2 O 3 photocatalyst was successfully synthesized through a simple sol-gel route. The photocatalyst was characterized by synchrotron-based techniques including X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS), ...
(c) Bi2Al4O9和Bi2O3/BiO2的Al 2p和Bi 4f XPS光谱。(d) Bi L1边XANES光谱。(e)HAADF-STEM图像。(f−i) Bi2O3/BiO2异质结的界面结构。(j−m) Bi、O的EDS元素映射图及其对应的能量色散谱。 图3. Bi2O3/BiO2、Bi2Al4O9和Bi的ECO2RR性能。(a) 线性扫描伏安曲线。(b) Bi2O3/BiO2在...
From XANES and EXAFS analyses, Bi3+ environment is found to be similar to that in the crystalline reference Na3Bi(PO4)2, with two distinct oxygen shells. The first shell contains 5.5±0.5 oxygens and EXAFS data are best fitted with a two sub-shell model. The Bi–O distances in this ...
The chemical state and local structure of V are investigated by synchrotron-based techniques, such as X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS). Our findings demonstrate the critical role of VO 3 − in stabilizing the δ-Bi 2 O 3 ...
EXAFS, XANES and P-31 double-quantum MAS-NMR of (50-x/2)Na2O-xBi(2)O(3)-(50-x/2)P2O5 glassesDaviero, SMontagne, LPalavit, GMairesse, GBelin, SBriois, V
State-of-the-art X-ray absorption near edge structure spectroscopy (XANES) and theoretical calculation unraveled the distinct formate production performance of the p-Bi catalyst, which was cocontributed by its smaller size, plentiful porous structure, and stronger Bi鈥揙 bond, thus accelerating the ...
Comparison using primary differential of XANES by energy shows a slight change between the 蟽-form and the melt indicating a change in symmetry of coordinating atoms.doi:10.1016/0167-2738(94)90128-7Kichiro KotoKatsumi SudaNobuo IshizawaHironobu Maeda...
XANES confirms the presence of Cu species with +2 oxidation state in the form of CuO. EXAFS furthermore confirms that each Cu cation is coordinated to four O anions in an approximately square planar configuration. The length of the Cu-O coordination is estimated to be 1.92, slightly shorter ...
The local structure of the fluorite-type compounds in the system (1− x)Bi 2O 3· xGd 2O 3 (0⩽x⩽0.45) has been studied by EXAFS. The differential XANES spectra near the Bi-L3 edge slightly change with composition, whereas no change was observed in those near the Gd-L3 edge,...