The Au 4f XPS (Fig. 7d) spectra exhibited a lower-energy band (Au 4f 7/2 ) observed at 84.3 eV, while the higher-energy band (Au 4f 5/2 ) appeared at 87.9 eV, both indicative of Au (0) species.

2013年2月1日 · High resolution XPS spectra (4f) of mass-selected Au N -clusters supported by a thin natural silica layer are presented in the size range N = 1–35 atoms per cluster. The XPS binding energy as well as peak width is found to increase …

Au4f 区域具有明显的自旋轨道分裂峰 (Δ=3.7 eV)。 Au4f 区域的谱峰峰形不对称。 然而，金纳米颗粒可观察到结合能位移。 Casaletto 等人 用 XPS [1] 分析了负载在不同金属氧化物上的金纳米颗粒，发现了两种状态的金，Au 0 和 Au 1+。 Au 1+ 状态相对于 Au 0 状态位移了 2 eV。 金，拉丁语 aurium，意思是“灿烂的黎明”，自史前时代以来它一直是最宝贵的贵金属之一，在《旧约圣经》中有多次提到。 金一直是许多国家货币兑换的标准。 整块纯金呈黄色，极细的金粉或金溶液也 …

2020年5月1日 · The Au 4 f XPS peaks of Au NPs coincided with those of metallic gold to confirm that a metallic state was retained in colloidal Au nanoparticles. On the other hand, the Au 4 f XPS spectra of Au@LCC showed a low-energy broadening due to the formation of Au–C bonds between Au NPs and LCC.

Peaks in the Au4f region have an asymmetric peak shape. The Au4f 7/2 peak can be a useful binding energy reference (Au4f 7/2 at 84.00eV). Binding energy shifts may be observed with Au nanoparticles, however. Casaletto et al. analyzed Au nanoparticles on different metal oxide supports with XPS [1] and found two states of gold, Au 0 and Au 1+.

Herein, we introduce an eco-friendly electrochemical sensor based on melamine-enriched nitrogen-doped carbon nanosheets decorated with gold nanoparticles (Au-CNSm) for arsenic sensing. An extremely...

1975年11月3日 · Experimental and theoretical results are presented which indicate significant increases of surface-atom relative intensities in X-ray photoelectron spectra obtained at grazing X-ray incidence. For Au with C-containing overlayers, these effects are observed in the intensity ratios 1s/Au4f, Au4p 3 2 /Au4f, and Au4d/Au4f.

锰 • 过渡金属 主要 XPS 区： Mn2p 重叠区： Cu LMM、Au4p 1/2 常见化学态的结合能：

We simulated the extinction spectra of Ag–Au alloyed nanoparticles produced by pulsed laser ablation in liquid of elemental targets followed by re-irradiation of suitable mixtures of the obtained...

There is a lot of current interest in the chemistry and especially the catalysis of gold, therefore there is a great interest in the reliable assignment of metallic and ionic gold species in XPS. Typical Au (4f 7/2) binding energies are given below: Metallic Au: 84.0 eV Au (I): ca. 85.0 eV Au (III): ca. 86.0 eV