X-ray photoelectron spectra of some dirhodium carboxylate complexes
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Zwitterionic cellular polymer enabled reductive fixation of CO<inf>2</inf> for N-methylation of amines
2023, Green Synthesis and CatalysisAn efficient chiral porous catalyst support – Hypercrosslinked amino acid polymer
2021, Journal of CatalysisCitation Excerpt :The peak at 313.84 eV was assigned to Rh–cod, while the peak at 309.00 eV was divided into three peaks: 308.5, 309.00, and 309.9 eV, which were assigned to RhN, RhO, and RhCl, respectively. [36,37] These indicate that the N of the amino group and the O of the amino acid residues contribute to the coordination with the Rh species and that the Rh catalyst supported by chiral porous HCP-AAs was successfully synthesized [38]. The binding mode of metal ions and amino acids and the content of other metal ions in the catalyst were analyzed by XPS, as shown in Figures 4 and S2 and Table 2.
Noble metal silicides catalysts with high stability for hydrodesulfurization of dibenzothiophenes
2021, Catalysis TodayCitation Excerpt :In comparison with the XPS spectrum of metallic Pt 4f, the binding energy of Pt in Pt2Si shifts to higher binding energy, which indicates that there is electron transfer from Pt to Si atoms [30]. As shown in Fig. 4f, the Rh peaks in spectrum of Rh 3d5/2 are at 307.1 eV and 307.6 eV, which are higher than the binding energy of metal Rh [31,32]. It indicates indirectly that the Rh combined with Si, leading to the higher binding energy of Rh.
Hydrogenation of nitro-compounds over rhodium catalysts supported on poly[acrylic acid]/Al<inf>2</inf>O<inf>3</inf> composites
2015, Applied Catalysis A: GeneralCitation Excerpt :A comparison of the integral intensities of these components further suggests that Rh(0) species constitute approximately 34–60% of the total Rh in the catalyst and that the contribution increases with increasing TMPM in the supports. The appearance of the additional band at 310.2 eV corresponds to Rh(II) carboxylate complexes formed during the reduction process [42–45]. Overall, these XPS results clearly demonstrate the incomplete reduction of Rh species on the hybrid nanocomposite, which is consistent with previous literature reports by Karakhanov et al. [11].
Study of Fe<inf>2</inf>O<inf>3</inf>-ZrO<inf>2</inf> interface of ZrO<inf>2</inf> coating grown by hydrothermal process on stainless steel
2014, Surface and Coatings TechnologyCitation Excerpt :C1s spectrum (Fig. 8b) shows the presence of two distinct peaks, at around 285 and 288.2 eV. The higher energy peak of C1s indicates the presence of carboxylic species from the EDTA compound on the surface [39,40]. Similarly the presence of N and Na is also detected on the surface of Fe2O3 after the exposure (Fig. 8c and d).
Catalysis by rhodium complexes bearing pyridine ligands: Mechanistic aspects
2010, Coordination Chemistry Reviews
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Present address: Physique des Liquides et Electrochimie, Université de Paris VI, 4, Place Jussieu, Tour 22, Paris, France.
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Present address: Department of Chemistry, Pennsylvania State University, University Park, Pa. 16802.