3D hierarchical walnut-like CuO nanostructures: Preparation, characterization and their efficient catalytic activity for CO oxidation

Cluster–Nuclei Coassembled into Two-Dimensional Hybrid CuO-PMA Sub-1 nm Nanosheets

“…As displayed in the XPS spectra of Cu 2p (Figure S4a), the peaks of Cu 2p 3/2 and Cu 2p 1/2 were located at 933.7 and 953.7 eV with splitting of 20 eV, respectively, which demonstrated the existence of the Cu 2+ valence. Furthermore, the characteristic satellite peaks at 943.5 and 962.4 eV were consistent with the widely reported XPS data of CuO. − In the Mo 3d XPS spectrum (Figure S4b), the peaks at 232.2 and 235.2 eV corresponded to Mo 3d 5/2 and 3d 3/2 , respectively, which indicated the presence of molybdenum oxides. − The Fourier-transform infrared (FT-IR) spectra (Figure S5) and 95 Mo solid-state nuclear magnetic resonance (NMR) spectra (Figure S6) of PMA and the SNSs directly proved that the PMA clusters still exist in the final products. Combined with the inductively coupled plasma optical emission spectroscopy (ICP-OES) results (Table S1), the chemical formula of the SNSs was given as (CuO) 0.22 (PMo 12 O 40 ) 0.0175 .…”

Ternary hybrid CuO-PMA-Ag sub-1 nm nanosheet heterostructures

“…At the same time, the characteristic satellite peaks at 943.5 eV and 962.4 eV were in agreement with reported XPS data of CuO. [29][30][31] For the Mo 3d XPS spectrum (Fig. S4b), the peaks at 232.2 and 235.2 eV can be attributed to Mo 3d5/2 and 3d3/2, respectively.…”

Modulating Cu+ distribution on the surface of Ce-doped CuO composite oxides for SO2-resistant NH3-selective catalytic reduction of NO

“…21,26,27 For a CuO reference sample, BEs of 933.7 eV and 953.7 eV (Fig. 2B) for the two main peaks are close to the standard values of Cu 2p 3/2 and Cu 2p 1/2 of CuO, respectively, 28,29 which were accompanied by two shakeup satellite peaks in the range of 938.2-946.3 eV and a isolated satellite peak around 962.1 eV. (CeO x ) m CuO samples showed similar peaks, except for the obvious BE shis of peaks towards lower BE compared to CuO.…”