FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2015705461> ?p ?o ?g. }

• W2015705461 endingPage "642" @default.
• W2015705461 startingPage "630" @default.
• W2015705461 abstract "Platinum–polyaniline (2%Pt/PANI) composites are prepared using three precursor solutions of H 2 PtCl 6 differing in the pH and thus in the type of dominating chloro–aqua or chloro–hydroxo complexes of Pt(IV). Various characterization techniques (X-ray diffraction, FTIR and X-ray photoelectron spectroscopy, and electron microscopy; TEM, HRTEM) were employed in order to elucidate the role of platinum precursor composition in the state of Pt-species formed in the Pt/PANI composites. In all three as-received Pt/PANI composites, platinum in two valence states Pt(IV) and Pt(II) was observed thus showing redox reaction under preparation of composites. The reduction of Pt(IV) is much easier in the precursor solution of alkaline pH, i.e. when the Pt(IV) complexes comprising aqua and/or hydroxo ligands are the dominating ones. Under these conditions the content of Pt(II)-species is ca. 7× higher than that of Pt(IV) ones. Reduction of as-prepared composites by NaBH 4 gives 2%Pt/PANI catalysts of well-dispersed Pt-metal particles of size ranging from 1 nm up to 4 nm. The average diameters (2.24 nm) of Pt-particles was slightly smaller in 2%Pt/PANI catalyst prepared using H 2 PtCl 6 solution of acidic pH. Catalytic properties of Pt/PANI composites are tested in liquid phase hydrogenation of alkyne-type reactant, 2-butyne-1,4-diol (B3-D) and in gas-phase hydrodehalogenation of CCl 4 . In the former, a classical example of alkyne to alkene and finally alkane hydrogenation, a catalytic behavior of Pt/PANI composites in terms of activity and selectivity was found to be similar to that observed for typical inorganic carrier supported Pt-catalysts. CCl 4 hydrodehalogenation on Pt/PANI leads initially to the formation of chloroform, which is the desired reaction product. However, in the course of reaction liberation of HCl brings about large changes, both in overall activity, as well as the selectivity, giving large amounts of dimeric C 2 products, especially C 2 Cl 6 . It is speculated that these changes follow from reprotonation of PANI which acquires Brönsted acidity used in dimerization of CCl 3 radicals." @default.
• W2015705461 created "2016-06-24" @default.
• W2015705461 creator A5004876999 @default.
• W2015705461 creator A5054773545 @default.
• W2015705461 creator A5062113985 @default.
• W2015705461 creator A5066552610 @default.
• W2015705461 creator A5068056564 @default.
• W2015705461 creator A5084566822 @default.
• W2015705461 creator A5086849776 @default.
• W2015705461 date "2009-08-01" @default.
• W2015705461 modified "2023-10-18" @default.
• W2015705461 title "Polyaniline stabilized highly dispersed Pt nanoparticles: Preparation, characterization and catalytic properties" @default.
• W2015705461 cites W1606045758 @default.
• W2015705461 cites W1964077111 @default.
• W2015705461 cites W1965153145 @default.
• W2015705461 cites W1976142843 @default.
• W2015705461 cites W1976246046 @default.
• W2015705461 cites W1978551811 @default.
• W2015705461 cites W1983118801 @default.
• W2015705461 cites W1989982425 @default.
• W2015705461 cites W1992685664 @default.
• W2015705461 cites W2002255412 @default.
• W2015705461 cites W2002273707 @default.
• W2015705461 cites W2006839829 @default.
• W2015705461 cites W2008219697 @default.
• W2015705461 cites W2011825825 @default.
• W2015705461 cites W2018247347 @default.
• W2015705461 cites W2026749990 @default.
• W2015705461 cites W2039377453 @default.
• W2015705461 cites W2039613939 @default.
• W2015705461 cites W2040968534 @default.
• W2015705461 cites W2043682668 @default.
• W2015705461 cites W2046671229 @default.
• W2015705461 cites W2047265344 @default.
• W2015705461 cites W2048069836 @default.
• W2015705461 cites W2054563168 @default.
• W2015705461 cites W2054829987 @default.
• W2015705461 cites W2055680006 @default.
• W2015705461 cites W2059500233 @default.
• W2015705461 cites W2061911300 @default.
• W2015705461 cites W2064570283 @default.
• W2015705461 cites W2066097595 @default.
• W2015705461 cites W2070521984 @default.
• W2015705461 cites W2072956241 @default.
• W2015705461 cites W2078297987 @default.
• W2015705461 cites W2079120645 @default.
• W2015705461 cites W2084171647 @default.
• W2015705461 cites W2084492125 @default.
• W2015705461 cites W2095013029 @default.
• W2015705461 cites W2101861238 @default.
• W2015705461 cites W2123313139 @default.
• W2015705461 cites W2145120220 @default.
• W2015705461 cites W2163019065 @default.
• W2015705461 doi "https://doi.org/10.1016/j.reactfunctpolym.2009.04.007" @default.
• W2015705461 hasPublicationYear "2009" @default.
• W2015705461 type Work @default.
• W2015705461 sameAs 2015705461 @default.
• W2015705461 citedByCount "42" @default.
• W2015705461 countsByYear W20157054612012 @default.
• W2015705461 countsByYear W20157054612013 @default.
• W2015705461 countsByYear W20157054612014 @default.
• W2015705461 countsByYear W20157054612015 @default.
• W2015705461 countsByYear W20157054612016 @default.
• W2015705461 countsByYear W20157054612017 @default.
• W2015705461 countsByYear W20157054612018 @default.
• W2015705461 countsByYear W20157054612019 @default.
• W2015705461 countsByYear W20157054612020 @default.
• W2015705461 countsByYear W20157054612021 @default.
• W2015705461 countsByYear W20157054612022 @default.
• W2015705461 countsByYear W20157054612023 @default.
• W2015705461 crossrefType "journal-article" @default.
• W2015705461 hasAuthorship W2015705461A5004876999 @default.
• W2015705461 hasAuthorship W2015705461A5054773545 @default.
• W2015705461 hasAuthorship W2015705461A5062113985 @default.
• W2015705461 hasAuthorship W2015705461A5066552610 @default.
• W2015705461 hasAuthorship W2015705461A5068056564 @default.
• W2015705461 hasAuthorship W2015705461A5084566822 @default.
• W2015705461 hasAuthorship W2015705461A5086849776 @default.
• W2015705461 hasConcept C127413603 @default.
• W2015705461 hasConcept C13965031 @default.
• W2015705461 hasConcept C146088050 @default.
• W2015705461 hasConcept C160892712 @default.
• W2015705461 hasConcept C161368742 @default.
• W2015705461 hasConcept C161790260 @default.
• W2015705461 hasConcept C165983687 @default.
• W2015705461 hasConcept C171250308 @default.
• W2015705461 hasConcept C175708663 @default.
• W2015705461 hasConcept C178790620 @default.
• W2015705461 hasConcept C179104552 @default.
• W2015705461 hasConcept C185592680 @default.
• W2015705461 hasConcept C188027245 @default.
• W2015705461 hasConcept C192562407 @default.
• W2015705461 hasConcept C2777580120 @default.
• W2015705461 hasConcept C2779012754 @default.
• W2015705461 hasConcept C42360764 @default.
• W2015705461 hasConcept C44228677 @default.
• W2015705461 hasConcept C518104683 @default.
• W2015705461 hasConcept C521977710 @default.

• next