FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1981754702> ?p ?o ?g. }

• W1981754702 endingPage "95" @default.
• W1981754702 startingPage "85" @default.
• W1981754702 abstract "The gas-phase hydrogenation of ethyne, propyne, and propadiene was investigated over partially reduced Ni–Al mixed oxides derived from takovite, a hydrotalcite-type compound. The unique attributes of the hydrotalcite route leads to more active and selective catalysts compared to conventional Ni/Al2O3 prepared by impregnation. Tuning calcination and reduction conditions of the catalyst precursor is essential to optimize the hydrogenation performance. The best catalyst, calcined and reduced at 773 K, rendered stable propene yields up to ca. 65% and consisted of a Ni(Al)Ox solid solution with 55% of the total bulk nickel in reduced form and surface enrichment by aluminum. Sintering of NiO and crystallization of NiAl2O4 at high calcination temperature induce lower activity. The alkyne or diene conversion increases with the percentage of metallic Ni in the samples, while an optimal degree of nickel reduction maximizes the monoalkene selectivity. Below the optimum, oligomer formation is favored and above the optimum, alkane production increases. A similar pattern was found for the H2/HC ratio. The alkene selectivity experiences a dramatic increase in early stages of the reaction, which correlated with the build-up of C-containing species on the catalyst (sub-)surface. These selectivity-enhancing species are formed at specific reaction temperatures, highlighting the relevance of the testing procedure on assessing hydrogenation catalysts. The catalytic performance is strongly influenced by the hydrocarbon substrate. In contrast to propyne and propadiene, ethyne hydrogenation led to a C2H4 yield of only 6%." @default.
• W1981754702 created "2016-06-24" @default.
• W1981754702 creator A5006531482 @default.
• W1981754702 creator A5007349453 @default.
• W1981754702 creator A5009038884 @default.
• W1981754702 creator A5028410787 @default.
• W1981754702 date "2008-10-01" @default.
• W1981754702 modified "2023-10-16" @default.
• W1981754702 title "Activated takovite catalysts for partial hydrogenation of ethyne, propyne, and propadiene" @default.
• W1981754702 cites W1579267068 @default.
• W1981754702 cites W1965104589 @default.
• W1981754702 cites W1971043675 @default.
• W1981754702 cites W1977739526 @default.
• W1981754702 cites W1980512236 @default.
• W1981754702 cites W1983853055 @default.
• W1981754702 cites W1989256651 @default.
• W1981754702 cites W1993091406 @default.
• W1981754702 cites W1997450552 @default.
• W1981754702 cites W2010989360 @default.
• W1981754702 cites W2013299113 @default.
• W1981754702 cites W2013845600 @default.
• W1981754702 cites W2024779091 @default.
• W1981754702 cites W2025490272 @default.
• W1981754702 cites W2031838077 @default.
• W1981754702 cites W2032320723 @default.
• W1981754702 cites W2032865042 @default.
• W1981754702 cites W2033921985 @default.
• W1981754702 cites W2042095755 @default.
• W1981754702 cites W2044595192 @default.
• W1981754702 cites W2047055834 @default.
• W1981754702 cites W2058007044 @default.
• W1981754702 cites W2058582724 @default.
• W1981754702 cites W2062947943 @default.
• W1981754702 cites W2067232632 @default.
• W1981754702 cites W2071486047 @default.
• W1981754702 cites W2078383737 @default.
• W1981754702 cites W2078391480 @default.
• W1981754702 cites W2083595698 @default.
• W1981754702 cites W2090377968 @default.
• W1981754702 cites W2091830184 @default.
• W1981754702 cites W2094204366 @default.
• W1981754702 cites W2113964721 @default.
• W1981754702 cites W2117636074 @default.
• W1981754702 cites W2139706631 @default.
• W1981754702 cites W2150124951 @default.
• W1981754702 cites W2325665995 @default.
• W1981754702 cites W2338398366 @default.
• W1981754702 cites W2726542089 @default.
• W1981754702 cites W2798282590 @default.
• W1981754702 cites W2969003916 @default.
• W1981754702 cites W305258368 @default.
• W1981754702 cites W656923709 @default.
• W1981754702 doi "https://doi.org/10.1016/j.jcat.2008.07.012" @default.
• W1981754702 hasPublicationYear "2008" @default.
• W1981754702 type Work @default.
• W1981754702 sameAs 1981754702 @default.
• W1981754702 citedByCount "83" @default.
• W1981754702 countsByYear W19817547022012 @default.
• W1981754702 countsByYear W19817547022013 @default.
• W1981754702 countsByYear W19817547022014 @default.
• W1981754702 countsByYear W19817547022015 @default.
• W1981754702 countsByYear W19817547022016 @default.
• W1981754702 countsByYear W19817547022017 @default.
• W1981754702 countsByYear W19817547022018 @default.
• W1981754702 countsByYear W19817547022019 @default.
• W1981754702 countsByYear W19817547022020 @default.
• W1981754702 countsByYear W19817547022021 @default.
• W1981754702 countsByYear W19817547022022 @default.
• W1981754702 countsByYear W19817547022023 @default.
• W1981754702 crossrefType "journal-article" @default.
• W1981754702 hasAuthorship W1981754702A5006531482 @default.
• W1981754702 hasAuthorship W1981754702A5007349453 @default.
• W1981754702 hasAuthorship W1981754702A5009038884 @default.
• W1981754702 hasAuthorship W1981754702A5028410787 @default.
• W1981754702 hasConcept C161790260 @default.
• W1981754702 hasConcept C178790620 @default.
• W1981754702 hasConcept C185592680 @default.
• W1981754702 hasConcept C2777197226 @default.
• W1981754702 hasConcept C75473681 @default.
• W1981754702 hasConceptScore W1981754702C161790260 @default.
• W1981754702 hasConceptScore W1981754702C178790620 @default.
• W1981754702 hasConceptScore W1981754702C185592680 @default.
• W1981754702 hasConceptScore W1981754702C2777197226 @default.
• W1981754702 hasConceptScore W1981754702C75473681 @default.
• W1981754702 hasIssue "1" @default.
• W1981754702 hasLocation W19817547021 @default.
• W1981754702 hasOpenAccess W1981754702 @default.
• W1981754702 hasPrimaryLocation W19817547021 @default.
• W1981754702 hasRelatedWork W2004112662 @default.
• W1981754702 hasRelatedWork W2004629205 @default.
• W1981754702 hasRelatedWork W2024123727 @default.
• W1981754702 hasRelatedWork W2087051611 @default.
• W1981754702 hasRelatedWork W2087476428 @default.
• W1981754702 hasRelatedWork W2141379893 @default.
• W1981754702 hasRelatedWork W2168611614 @default.
• W1981754702 hasRelatedWork W2330424792 @default.
• W1981754702 hasRelatedWork W233224570 @default.
• W1981754702 hasRelatedWork W2950647319 @default.

• next