2022年2月15日 · The atomic Cu/Mn ratio of CuMn 2 O 4, Cu 0.2 MnO x, and Cu 0.3 MnO x from the results of energy dispersive X-ray spectroscopy (EDX) was 0.5, 0.6 and 2.1 comparing to 0.5, 0.2 and 0.3 from ICP-OES results, respectively, revealing more …

2024年8月15日 · Electronic coupling of confined Cu-Mn was enhanced due to electron rearrangement. Cu-Mn metal synergy favored PMS activation in nano-confined environment. Major species changed from SO 4•− and 1 O 2 to SO 4•− and • OH in a confined system. The SMX removal rate increased by 25.16% under confined catalysis.

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

2020年12月1日 · XPS analysis exhibited the existence of several active species such as, Cu and Mn cations, hydroxides and metal carbonates. The ratio of Cu/Mn in bulk is found to be in correlation with the catalytic activity.

The solar spectral selectivity is intrinsic to the band-to-band and d-d transitions of non-stoichiometric spinel Cu-Mn-Cr oxide nanoparticles by balancing the lattice site inversion of Cu2+ and...

2022年11月2日 · The uncalcined and calcined Mn-Cu vanadates (MCVs) were investigated by XRD, SEM, TEM, FT-IR, EDX, ICP-AES, TGA, DTA, DSC, BET, XPS, and VSM. XRD analysis shows co-existence of multi-phase CVs with MnV2O6 and V oxides.

Figure 2 shows the XPS spectra of Cu 2p (a), Mn 2p (b) and the congruent fit curves of Cu 2p 3/2 (c) and Mn 2p 3/2 (d) peaks recorded for the CuMnO x film annealed at 600 • C. As can be...

采用 X射线光电子能谱（XPS） 对草酸盐MeC2O4·nH2O（Me=Mn、Fe、Co、Ni、Cu）的表面组成、原子化学态和电子结构进行了表征；通过 XRD 对其结构进行了表征。提供了核心级 Me 2p、Fe 3p、Fe 3s、C 1s、O 1s、X 射线诱导俄歇 Me LMM、O KVV 和价带光谱以及从光谱分析得出 …

2024年7月11日 · The toluene catalytic combustion mechanism of Cu-Mn/Al2O3 catalysts was discussed based on XPS and H2-TPR, and a high atomic ratio of Mn3+ could be obtained with 51.03%, and the ratio of Oads/Olatt also increased to 2.85 in CMA-GL-90.

In this study, we regulated copper loading and the atomic ratio of Cu/Mn and investigated the influence on interaction of the active species of Cu-Mn composite oxide catalyst supported on...