Articles with "free catalyst" as a keyword



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Catalytic hydrogenation of p-nitrophenol using a metal-free catalyst of porous crimped graphitic carbon nitride

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Published in 2019 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2019.03.035

Abstract: Abstract Currently, most catalysts for hydrogenation of p-nitrophenol employ the size- and shape-controlled noble metal (Au, Ag, Pd and Pt, etc.) nanomaterials or which supported on appropriate supports. Nevertheless, their high prices and low reserves… read more here.

Keywords: catalyst; free catalyst; graphitic carbon; metal free ... See more keywords
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Graphene oxide as a sustainable metal and solvent free catalyst for dehydration of fructose to 5-HMF: A new and green protocol

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Published in 2018 at "Catalysis Communications"

DOI: 10.1016/j.catcom.2017.12.018

Abstract: Abstract The metal free catalytic dehydration of fructose to 5-hydroxymethylfurfural (5-HMF) using graphene oxide catalyst is reported. The reaction has been employed under solvent free condition with high reactivity and selectivity. The metal free catalyst,… read more here.

Keywords: graphene oxide; free catalyst; dehydration fructose; metal ... See more keywords
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Evaluating organic waste sources (spent coffee ground) as metal-free catalyst for hydrogen generation by the methanolysis of sodium borohydride

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Published in 2020 at "International Journal of Hydrogen Energy"

DOI: 10.1016/j.ijhydene.2019.10.180

Abstract: Abstract In this study, organic waste sources (spent coffee ground (SCG)) is used as metal-free catalyst in comparison with conventional noble-metal catalyst materials for hydrogen generation based on the methanolysis of sodium borohydride solution. Spent… read more here.

Keywords: free catalyst; hydrogen; methanolysis; metal free ... See more keywords
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Nitrogen-doped graphene as an efficient metal-free catalyst for ammonia and non-enzymatic glucose sensing

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Published in 2022 at "Journal of Physics and Chemistry of Solids"

DOI: 10.1016/j.jpcs.2021.110359

Abstract: Abstract Theoretical studies reveal that the electronic and chemical properties of graphene can be significantly altered by chemical doping with a nitrogen atom. In the present work, a unique strategy has been applied for the… read more here.

Keywords: nitrogen; free catalyst; glucose sensing; doped graphene ... See more keywords
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Divacancy-nitrogen/boron-codoped graphene as a metal-free catalyst for high-efficient CO oxidation

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Published in 2018 at "Materials Chemistry and Physics"

DOI: 10.1016/j.matchemphys.2017.12.048

Abstract: Abstract Metal-free catalysts have attracted wide attention due to their potentially catalytic applications. We performed density functional theory (DFT) calculations to investigate the different reaction mechanisms for CO catalytic oxidation on single-atom B incorporated into… read more here.

Keywords: oxidation; free catalyst; divacancy nitrogen; sheet ... See more keywords
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A Cationic Zinc-Organic Framework with Lewis Acidic and Basic Bifunctional Sites as an Efficient Solvent-Free Catalyst: CO2 Fixation and Knoevenagel Condensation Reaction.

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Published in 2018 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.8b01713

Abstract: A novel two-dimensional cationic framework [Zn2(TCA)(BIB)2.5]ยท(NO3) (1) (H3TCA = tricarboxytriphenyl amine, BIB = 1,3-bis(imidazol-1-ylmethyl)benzene) was successfully achieved. Compound 1 not only presents a moderate affinity toward CO2 molecules, but it also displays good catalytic performance… read more here.

Keywords: co2; solvent free; free catalyst; knoevenagel condensation ... See more keywords
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Boron phosphide as an efficient metal-free catalyst for nitrate electroreduction to ammonia.

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Published in 2023 at "Dalton transactions"

DOI: 10.1039/d3dt00551h

Abstract: Boron phosphide (BP) is first explored as an efficient metal-free catalyst towards the NO3RR, delivering the highest NH3-faradaic efficiency of 96.3% with a corresponding NH3 yield rate of 3.1 mg h-1 cm-2, outperforming most reported… read more here.

Keywords: efficient metal; metal free; boron phosphide; metal ... See more keywords