List of selected X-ray absorption edge energies (in electron volt, eV) Element: Atomic Number: Atomic Weight: K Edge: L1 Edge: L2 Edge: L3 Edge: M1 Edge: M5 Edge

Energies of elemental K-edges. Handy for energy calibrations at the beamline. Data was obtained from here. See also: http://physics.nist.gov/PhysRefData/XrayTrans/index.html. Remember that 12.3984191 (11) keV is 1 Angstrom (http://physics.nist.gov/cuu/Constants/Table/allascii.txt) Ele. A Trans. Theory (eV) Direct (eV) Combined (eV)

2022年7月13日 · Here, we report a pentacoordinated Zr-based SAC with nontrivial axial O ligands (denoted O−Zr−N−C) for oxygen reduction reaction (ORR). The O ligand downshifts the d-band center of Zr and confers Zr sites with stable local structure …

Zr K 边的 X 射线吸收光谱是探测 Zr 环境的重要技术。 在这里，它适用于组成为 0.07⩽x⩽0.40 的氧化锆-二氧化硅干凝胶，其中 x 是摩尔比 Zr: (Zr+Si)。 还检查了结晶 ZrO2、ZrSiO4、BaZrO3 和液态正丙醇锆的参考样品。 为氧化锆-二氧化硅干凝胶提供了新的 XANES（X 射线吸收近边缘结构）结果，并与之前的 EXAFS（扩展的 X 射线吸收精细结构）结果进行了比较。 对于高 Zr 含量 (x=0.4)，有一个单独的无定形 ZrO2 相，在热处理之前类似于 Zr 氢氧化物，在 750°C 热处理 …

2020年11月13日 · Here we report inverse ZrO 2 /Cu catalysts with a tunable Zr/Cu ratio have been prepared via an oxalate co-precipitation method, showing excellent performance for CO 2 hydrogenation to methanol.

2020年11月13日 · The results of both Zr and Ni K-edge XAFS spectra verified the existence of atomic defects at the vacancy sites distorting the C1 b-type crystal structure. We concluded that the distortion of...

2024年4月19日 · Element-specific pair distribution function analysis using anomalous X-ray scattering data showed the formation of a liquid ZrO 2 -like local structural motif and edge sharing between the ZrO x...

Download scientific diagram | (a) Normalized Zr K-edge XANES spectra of Zr foil, ZrCl4, pristine ZrO2, Vo-poor ZrO2, and Vo-rich ZrO2. (b) Zr K-edge EXAFS spectra (R space, k³-weighted) of...

In the present work, we employed the developed methodology to monitor the formation of UiO-66, starting from the induction period through nucleation to the crystal growth. Our toolkit was reinforced by time-resolved Zr K-edge X-ray absorption spectroscopy (XAS), employing Fourier and wavelet analysis (WT) of EXAFS.

2006年7月17日 · Extended x-ray absorption fine structure experiments at the Zr edge were carried out on perovskite relaxor ferroelectrics (BTZ) , and on for comparison. Structural information up to around the Zr atoms is obtained, revealing that the local structure differs notably from the average cubic structure