Log in

Relevant bibliographies by topics / Raney nickel / Journal articles

To see the other types of publications on this topic, follow the link: Raney nickel.

Journal articles on the topic 'Raney nickel'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Raney nickel.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Chan-Shing, Elisa Soazara, Denys Boucher та Jean Lessard. "The electrochemical reduction of α-nitrocumene in a protic and basic medium on large surface area (porous) electrodes: electronation-protonation or electrocatalytic hydrogenation?" Canadian Journal of Chemistry 77, № 5-6 (1999): 687–94. http://dx.doi.org/10.1139/v99-035.

Full text

Abstract:

The electrochemical reduction of α-nitrocumene (1) has been investigated under controlled potential, at a mercury pool cathode and at Raney metal (Raney nickel, Raney cobalt and Devarda copper) and fractal nickel electrodes in basic aqueous ethanol. A comparison of the product distribution from the reduction at Hg (electronation-protonation (EP) mechanism) and that from the reduction at Raney metals and fractal nickel has shown that both the electrocatalytic hydrogenation (ECH) and EP mechanisms can be involved at large surface area (porous) transition metal electrodes in a basic protic medium

APA, Harvard, Vancouver, ISO, and other styles

2

Linnekoski, J. A., A. O. I. Krause, Jari Keskinen, J. Lamminen, and T. Anttila. "Processing of Raney-Nickel Catalysts for Alkaline Fuel Cell Applications." Journal of Fuel Cell Science and Technology 4, no. 1 (2006): 45–48. http://dx.doi.org/10.1115/1.2397140.

Full text

Abstract:

Platinum and other platinum group metals, either as singles or in combinations, have been preferred for use in low temperature fuel cells, mainly alkaline fuel cells (AFCs), polymer membrane electrolyte fuel cells (PEMs), and direct methanol fuel cells (DMFCs), for hydrogen oxidation reaction (HOR). However, also the Raney-nickel catalyst, which is among the most active non-noble metals for the HOR, has been the target of interest, especially in AFCs. However, electrodes with nonsupport Raney-nickel catalysts have been reported to suffer from insufficient conductivity. So, in this work, in ord

APA, Harvard, Vancouver, ISO, and other styles

3

Bhaumik, Kankan, and K. G. Akamanchi. "Nitroarene reduction using Raney nickel alloy with ammonium chloride in water." Canadian Journal of Chemistry 81, no. 3 (2003): 197–98. http://dx.doi.org/10.1139/v03-021.

Full text

Abstract:

Aromatic nitroarenes are reduced in high yields using a user-friendly combination of Raney nickel alloy and ammonium chloride in water at 8090°C.Key words: Raney nickel alloy, nitroarenes reduction, ammonium chloride, water.

APA, Harvard, Vancouver, ISO, and other styles

4

Thesner, CJ, A. Falch, G. Cornelia, and CE Van Sittert. "Using site occupation disorder to build bulk structures of Ni1-xAlx." Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 40, no. 1 (2022): 174–79. http://dx.doi.org/10.36303/satnt.2021cosaami.33.

Full text

Abstract:

Raney nickel shows potential as an electrocatalyst for the oxygen evolution reaction (OER). However, the catalytic activity of Raney nickel varies with its properties. These properties are related to the composition of the bimetallic precursor used to synthesise Raney nickel. The bimetallic precursor consists of a combination of bimetallic phases. Various studies have been done on the well-known bimetallic phases, namely, Ni2Al3, NiAl and NiAl3. However, to get a more comprehensive understanding of the influence of the bimetallic precursor on the properties of Raney nickel, a larger spectrum o

APA, Harvard, Vancouver, ISO, and other styles

5

Bossányi, François, Chakib Ameziane Hassani, Hugues Ménard, and Jean Lessard. "Isotherme d'adsorption du phénanthrène et de ses dérivés hydrogénés sur du nickel de Raney." Canadian Journal of Chemistry 67, no. 3 (1989): 365–68. http://dx.doi.org/10.1139/v89-059.

Full text

Abstract:

The adsorption isotherms of phenanthrene and its hydrogenated derivatives, of naphthalene, and of tetralin on Raney nickel have been determined by chromatographic studies. The adsorption of these molecules on Raney nickel depends on the number of π electrons and on the position and orientation of hydrogen atoms that can interfere with the interaction of the π electrons with the catalyst. Keywords: adsorption, phenanthrene, chromatographic studies.

APA, Harvard, Vancouver, ISO, and other styles

6

Lu, Shuliang, Jiajia Wu, Hui Peng, and Yong Chen. "Carbon-Supported Raney Nickel Catalyst for Acetone Hydrogenation with High Selectivity." Molecules 25, no. 4 (2020): 803. http://dx.doi.org/10.3390/molecules25040803.

Full text

Abstract:

Catalysts with high selectivity play key roles in green chemistry. In this work, a granular Raney Ni catalyst using carbon as support (Raney Ni/C) was developed by mixing phenolic resin with Ni-Al alloy, conducting carbonization at high temperature, and leaching with alkaline liquor. The as-prepared Raney Ni/C catalyst is suitable for use in fix-bed reactors. Moreover, it shows high activity and selectivity for catalytic acetone hydrogenation. For instance, at the reaction temperature of 120 °C, the conversion of acetone can reach up to 99.9% and the main byproduct methyl isobutylcarbinol (MIB

APA, Harvard, Vancouver, ISO, and other styles

7

Mahdavi, Behzad, Przemyslaw Los, Marie Josée Lessard, and Jean Lessard. "A comparison of nickel boride and Raney nickel electrode activity in the electrocatalytic Hydrogenation of Phenanthrene." Canadian Journal of Chemistry 72, no. 11 (1994): 2268–77. http://dx.doi.org/10.1139/v94-289.

Full text

Abstract:

The electrocatalytic activity of nickel boride in the electrocatalytic hydrogenation (ECH) of phenanthrene in ethylene glycol–water at 80 °C has been compared to that of Raney nickel and fractal nickel. The intrinsic activity of the electrode material (real electrode activity) is the same for nickel boride and Raney nickel electrodes and is lower for fractal nickel electrodes. The apparent electrode activity of nickel boride pressed powder electrodes (Ni2B electrodes) is less than that of codeposited Raney nickel (RaNi) electrodes and pressed powder fractal nickel/Raney nickel (Ni/RaNi = 50/50

APA, Harvard, Vancouver, ISO, and other styles

8

Sakharov, Maxim, Kamila Koledina, and Irek Gubaydullin. "Optimal Control of Hydrocarbons’ Hydrogenation with Catalysts." Mathematics 12, no. 22 (2024): 3570. http://dx.doi.org/10.3390/math12223570.

Full text

Abstract:

In this paper, the optimal control problem of hydrocarbons’ hydrogenation was investigated in the presence of two catalysts—Nickel–Kieselguhr and Raney Nickel. This multistage chemical reaction holds significant practical importance, particularly in the production of high-density fuels. The optimal control problem was reformulated as a nonlinear global optimization problem and addressed using a modified Mind Evolutionary Computation algorithm. The proposed modifications include methods designed to ensure solution feasibility and ease of practical implementation. Using the proposed method, the

APA, Harvard, Vancouver, ISO, and other styles

9

Bradke, M. V., W. Schnurnberger, and I. Seybold. "Surface microstructure on Raney nickel catalysts." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 4 (1990): 272–73. http://dx.doi.org/10.1017/s0424820100174497.

Full text

Abstract:

Raney nickel is a favorite electrocatalyst for alkaline water electrolysis and fuel cells. The good electrochemical properties of this material result from its very fine porosity giving the electrodes a large effective surface. Usually the microstructure is formed by chemical etching of a nickel alloy, leaving back a highly porous electrode consisting of nearly pure nickel. It is well known that the total effective surface can considerably vary depending on the etching process, but up to now the understanding of the influence of all etching parameters on the resulting pore structure is quite a

APA, Harvard, Vancouver, ISO, and other styles

10

Rodiansono, Rodiansono, Maria Dewi Astuti, Dwi Rasy Mujiyanti, and Uripto Trisno Santoso. "Selective Hydrogenation of Sucrose into Sugar Alcohols over Supported Raney Nickel-Based Catalysts." Indonesian Journal of Chemistry 19, no. 1 (2019): 183. http://dx.doi.org/10.22146/ijc.31319.

Full text

Abstract:

Selective hydrogenation of sugars (e.g. sucrose, cellobiose, glucose, fructose, xylose, arabinose) into sugar alcohols (sorbitol, mannitol, xylitol, arabitol) can be achieved by means of supported Raney Ni-based catalysts. Various supporting materials such as the layered structure of clay (e.g. bentonite, taeniolite, smectite), metal oxides (e.g. Nb2O5, ZrO2, Al2O3), and conventional supports (e.g. carbon, silica, zeolite (JRC-SZ1)) were employed to obtain high performance of supported Raney Ni-based catalysts. The conventional Raney Ni, Raney Ni/AlOH, and Ni-NP with relatively high dispersion

APA, Harvard, Vancouver, ISO, and other styles

11

Bock, Hans, and Hans Peter Wolf. "Oberflächen-Reaktionen, 9 Dehydrohalogenierungen von Halogenkohlenwasserstoffen an Raney-Nickel / Surface Reactions, 9 Dehydrohalogenation of Halohydrocarbons at Raney Nickel." Zeitschrift für Naturforschung B 44, no. 6 (1989): 699–714. http://dx.doi.org/10.1515/znb-1989-0614.

Full text

Abstract:

Raney nickel, a highly reactive and air-sensitive solid, if prepared and investigated under oxygen-free conditions, exhibits interesting catalytic properties. Using photoelectron spectroscopy for real-time gas analysis in a flow reactor, the following results are obtained with alkyl and acylhalides: Dehydrohalogenation temperatures are lowered relative to thermal HHal elimination up to 350 K. Monochloro and bromo propanes and butenes yield propene and butadiene, respectively. 1,1-Dichloro ethane or 1,1-dibromo propane only split off one HHal and form chloroethene or 1-bromopropene-2. HCl elimi

APA, Harvard, Vancouver, ISO, and other styles

12

Forchheim, Daniel, Ursel Hornung, Philipp Kempe, Andrea Kruse, and David Steinbach. "Influence of RANEY Nickel on the Formation of Intermediates in the Degradation of Lignin." International Journal of Chemical Engineering 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/589749.

Full text

Abstract:

Lignin forms an important part of lignocellulosic biomass and is an abundantly available residue. It is a potential renewable source of phenol. Liquefaction of enzymatic hydrolysis lignin as well as catalytical hydrodeoxygenation of the main intermediates in the degradation of lignin, that is, catechol and guaiacol, was studied. The cleavage of the ether bonds, which are abundant in the molecular structure of lignin, can be realised in near-critical water (573 to 673 K, 20 to 30 MPa). Hydrothermal treatment in this context provides high selectivity in respect to hydroxybenzenes, especially cat

APA, Harvard, Vancouver, ISO, and other styles

13

Gonzalez, Mario D., and Gerardo Burton. "On the Elimination of the 3-Benzylthioenol Ether of Pregn-4-ene-3,20-dione by W-2 Raney Nickel." Zeitschrift für Naturforschung B 40, no. 5 (1985): 639–44. http://dx.doi.org/10.1515/znb-1985-0513.

Full text

Abstract:

Reaction of 3-benzylthiopregna-3,5-dien-20-one or of pregna-3,5-dien-20-one with W-2 Raney nickel in acetone afforded a mixture of 20-ketopregnanes with different degrees of insaturation on rings A and B, of which the main component was identified as pregn-2-en-20-one. When deactivated Raney nickel was used, the main product was the expected pregna-3,5-dien-20-one with minor amounts of pregn-4-en-20-one and pregn-5-en-20-one.

APA, Harvard, Vancouver, ISO, and other styles

14

García, Beatriz, Jovita Moreno, Gabriel Morales, Juan A. Melero, and Jose Iglesias. "Production of Sorbitol via Catalytic Transfer Hydrogenation of Glucose." Applied Sciences 10, no. 5 (2020): 1843. http://dx.doi.org/10.3390/app10051843.

Full text

Abstract:

Sorbitol production from glucose was studied through catalytic transfer hydrogenation (CTH) over Raney nickel catalysts in alcohol media, used as solvents and hydrogen donors. It was found that alcohol sugars, sorbitol and mannitol, can be derived from two hydrogen transfer pathways, one produced involving the sacrificing alcohol as a hydrogen donor, and a second one involving glucose disproportionation. Comparison between short-chain alcohols evidenced that ethanol was able to reduce glucose in the presence of Raney nickel under neutral conditions. Side reactions include fructose and mannose

APA, Harvard, Vancouver, ISO, and other styles

15

Davidson, Alisha L., David Lennon, Paul B. Webb, et al. "The Characterisation of Hydrogen on Nickel and Cobalt Catalysts." Topics in Catalysis 64, no. 9-12 (2021): 644–59. http://dx.doi.org/10.1007/s11244-021-01425-0.

Full text

Abstract:

AbstractWe have investigated a series of supported and unsupported nickel and cobalt catalysts, principally using neutron vibrational spectroscopy (inelastic neutron scattering, INS). For an alumina supported Ni catalyst we are able to detect hydrogen on the metal for the first time, all previous work has used Raney Ni. For an unsupported Ni foam catalyst, which has similar behaviour to Raney Ni but with a much lower density, the spectra show that there are approximately equal numbers of (100) and (111) sites, in contrast to Raney Ni that shows largely (111) sites. The observation of hydrogen

APA, Harvard, Vancouver, ISO, and other styles

16

Cyr, André, Florence Chiltz, Paul Jeanson, et al. "Electrocatalytic hydrogenation of lignin models at Raney nickel and palladium-based electrodes." Canadian Journal of Chemistry 78, no. 3 (2000): 307–15. http://dx.doi.org/10.1139/v00-009.

Full text

Abstract:

The electrocatalytic hydrogenation (ECH) of β-O-4 lignin model compounds has been carried out at constant current at Raney nickel and palladium-based cathodes in aqueous sodium hydroxide solution at temperatures ranging from 25 to 75°C. It was found that the hydrogenolysis of phenolic β-arylethyl-aryl ethers with one β-O-4 linkage takes place at both types of electrodes to give a mixture of phenolic compounds. The ECH of 1-(4-hydroxy-3-methoxyphenyl)-2-(2-methoxyphenoxy)-1-ethanol (model 1) at Raney nickel gives guaiacol (9), acetovanillone (11b), alpha-methylvanillyl alcohol (12b), and produc

APA, Harvard, Vancouver, ISO, and other styles

17

M., UMAR ALI, and G. PARANJPE M. "Raney Nickel Desulphuration of Cyclic Nitrogen and Sulphur containing Compounds. Desulphuration of 1,2,4-Thiadiazolidnes." Journal of Indian Chemical Society Vol. 63, Feb 1986 (1986): 253–55. https://doi.org/10.5281/zenodo.6240676.

Full text

Abstract:

Department of Chemistry, Nagpur Unaeisity, Nagpur-440 010 <em>Manuscript received 28 December 1983, revised 16 April 1985, </em><em>accepted 2 December 1985</em> Raney Nickel Desulphuration of Cyclic Nitrogen and Sulphur containing Compounds. Desulphuration of 1,2,4-Thiadiazolidnes.

APA, Harvard, Vancouver, ISO, and other styles

18

Petro, Jozsef. "ChemInform Abstract: The Raney Nickel." ChemInform 32, no. 35 (2010): no. http://dx.doi.org/10.1002/chin.200135292.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Martel, Anna, Behzad Mahdavi, Jean Lessard, Hugues Ménard, and Louis Brossard. "Electrocatalytic hydrogenation of phenol on various electrode materials." Canadian Journal of Chemistry 75, no. 12 (1997): 1862–67. http://dx.doi.org/10.1139/v97-619.

Full text

Abstract:

The electrocatalytic hydrogenation (ECH) of phenol was investigated at room temperature under galvanostatic control in aqueous sulfuric acid solutions on platinized platinum (Pt/Pt) electrodes and on composite Rh/Ni and Ru/Ni electrodes consisting of rhodium or ruthenium chemically deposited on nickel particles dispersed in a lanthanum polyphosphate matrix. The order of electrocatalytic activity at a current density (based on the geometric area) of 1 mA/cm2 was found to be Ru/Ni > Pt/Pt > Rh/Ni. The efficiency decreased with increased current density. For the Ru/Ni electrodes, the effici

APA, Harvard, Vancouver, ISO, and other styles

20

Da Costa, Patrick. "Ni-Containing Catalysts." Catalysts 11, no. 5 (2021): 645. http://dx.doi.org/10.3390/catal11050645.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Dabo, Pierre, André Cyr, Jean Lessard, Louis Brossard, and Hugues Ménard. "Article." Canadian Journal of Chemistry 77, no. 7 (1999): 1225–29. http://dx.doi.org/10.1139/v99-120.

Full text

Abstract:

Electrodes consisting of particles of a transition metal entrapped and dispersed in a reticulated vitreous carbon (RVC) matrix were prepared in situ by stirring the particles in the presence of an RVC cathode. Such electrodes were used for the electrocatalytic hydrogenolysis (ECHsis) of 4-phenoxyphenol, a compound representative of the 4-O-5 type linkage in lignins. The electrolyses were carried out under galvanostatic control in aqueous 1 M NaOH. Raney nickel, nickel boride, and transition metals supported on activated charcoal or alumina were used as catalytic powders. The extent and efficie

APA, Harvard, Vancouver, ISO, and other styles

22

Zhu, Xi, Jianhua Tian, Xiaoyan Liu, et al. "A novel compact cathode using sponge-like RANEY® nickel as the sulfur immobilizer for lithium–sulfur batteries." RSC Advances 7, no. 56 (2017): 35482–89. http://dx.doi.org/10.1039/c7ra05569b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Horner, L., and Ch Franz. "Studien zum Vorgang der Wasserstoffübertragung, 74 [1]. Elektroreduktive Hydrierungen an Raney-Nickel-Pulver als Kathode / Studies on the Occurrence of Hydrogen Transfer, 74 [1]. Electroreductive Hydrogenation Using Raney-Nickel-Powder as a Cathode." Zeitschrift für Naturforschung B 40, no. 6 (1985): 808–13. http://dx.doi.org/10.1515/znb-1985-0619.

Full text

Abstract:

Abstract Cathodically pretreated Raney-nickel-powder with a potential of -900 to -1000 mV (vs SCE) shows a positive potential shift of 200 to 300 mV in the presence of a hydrogen acceptor (coumarine or 1-ethinylcyclohexanol (1)). Pyridine and quinoline do not have any strong influence on the potential but retard the hydrogenation of coumarine. Acetylene derivatives as 1-ethinylcyclohexanol are hydrogenated in two steps applying a potential down to -1050 mV. At -1150 mV the selectivity is lost. With Raney-nickel-powder pre-treated with pyridine or hydrogensulfide the two-step selectivity of the

APA, Harvard, Vancouver, ISO, and other styles

24

Robin, Denis, Michel Comtois, Anna Martel, et al. "The electrocatalytic hydrogenation of fused poly cyclic aromatic compounds at Raney nickel electrodes: the influence of catalyst activation and electrolysis conditions." Canadian Journal of Chemistry 68, no. 7 (1990): 1218–27. http://dx.doi.org/10.1139/v90-189.

Full text

Abstract:

The electrocatalytic hydrogenation (ECH) of phenanthrene, anthracene, and naphthalene has been investigated under constant current at Raney nickel electrodes in a mixed aqueous organic medium. The influence of various parameters on the efficiency of the process determined by the current efficiency (a measure of the competition between hydrogenation and hydrogen evolution, the only two electrochemical processes occurring), the extent of hydrogenation (yield of octahydro-derivatives), and the conversion rate was studied with phenanthrene. The best conditions were ethylene glycol or propylene gly

APA, Harvard, Vancouver, ISO, and other styles

25

Ajit, Das, Mandy Hansda Kamala, and Mahata Nagendranath. "Selective hydrogenation of meta-chloronitrobenzene over skeletal Ni-C catalyst." Journal of India Chemical Society Vol. 95, Dec 2018 (2018): 1531–34. https://doi.org/10.5281/zenodo.5644661.

Full text

Abstract:

Department of Chemistry, Sidho-Kanho-Birsha University, Purulia-723 104, West Bengal, India E-mail: nmahata@hotmail.com <em>Manuscript received online 10 November 2018, accepted 30 November 2018</em> Methane was decomposed over Raney nickel to synthesize nickel-carbon skeletal composite materials (NiC catalysts). The catalysts were applied in the hydrogenatation of meta-chloronitrobenzene to meta-chloroaniline in liquid phase under 1.5 MPa hydrogen pressure at 408 K using methanol as solvent. Substrate conversion and product selectivity were assessed by chromatographic analysis of the reaction

APA, Harvard, Vancouver, ISO, and other styles

26

Beraud, Valérie, Marc Thomalla, and Jean Lessard. "The influence of a non-micelle-forming surfactant on the electrocatalytic hydrogenation of carvone and limonene in aqueous medium at Raney nickel electrodes." Canadian Journal of Chemistry 75, no. 11 (1997): 1529–35. http://dx.doi.org/10.1139/v97-184.

Full text

Abstract:

The electrocatalytic hydrogenation (ECH) of carvone (1) and limonene (8) at a Raney nickel cathode was studied in aqueous solutions containing a non-micelle-forming surfactant (didodecyldimethylammonium bromide, DDAB). The efficiency of ECH of these substrates was markedly increased compared to that observed previously with micelle-forming surfactants, and this for very low DDAB concentrations, as a consequence of the strong adsorption of DDAB on the electrode. For the ECH of 8 in basic medium (pH 10), the major part of organic compounds (60–95%) was shown to be adsorbed on the electrode surfa

APA, Harvard, Vancouver, ISO, and other styles

27

Ruano, José Luis García, José A. Fernández-Salas, M. Carmen Maestro, and Alejandro Parra. "Reduction of Sulfonylimines with Raney Nickel." Synthetic Communications 43, no. 2 (2013): 198–207. http://dx.doi.org/10.1080/00397911.2011.594974.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Krafft, Marie E., William J. Crooks, Branka Zorc, and Stephen E. Milczanowski. "Reaction of Raney nickel with alcohols." Journal of Organic Chemistry 53, no. 14 (1988): 3158–63. http://dx.doi.org/10.1021/jo00249a007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Li, Chong Long. "Synthesis of 3-tert-butylaniline by Using Hydrodechlorination Technology." Advanced Materials Research 1051 (October 2014): 125–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1051.125.

Full text

Abstract:

Catalytic hydrodechlorination (HDC) is an innovative means of transforming chlorinated waste streams into a recyclable product. Hydrodehalogenation of 4-tert-butyl-1-chloro-2-nitrobenzene over Raney nickel catalyst has been investigated. The influence of different parameters, such as reaction solution, bases type, temperature and pressure are explored. Using Raney nickel as catalyst, methanol and water (v: v=4:1) as the reaction solution, ammonium acetate as the addictive, the ratio of ammonium acetate and 4-tert-butyl-1-chloro-2-nitrobenzene is 1:1, temperature 140 °C and pressure 3.0 Mpa, th

APA, Harvard, Vancouver, ISO, and other styles

30

Rodiansono, Maria Dewi Astuti, Kamilia Mustikasari, Sadang Husain та Sutomo. "Recent progress in the direct synthesis of γ-valerolactone from biomass-derived sugars catalyzed by RANEY® Ni–Sn alloy supported on aluminium hydroxide". Catalysis Science & Technology 10, № 22 (2020): 7768–78. http://dx.doi.org/10.1039/d0cy01356k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Rodiansono, Rodiansono, Takayoshi Hara, and Shogo Shimazu. "TOTAL HYDROGENATION OF BIOMASS-DERIVED FURFURAL OVER RANEY NICKEL-CLAY NANOCOMPOSITE CATALYSTS." Indonesian Journal of Chemistry 13, no. 2 (2013): 101–7. http://dx.doi.org/10.22146/ijc.21291.

Full text

Abstract:

Inexpensive Raney Ni-clay composite (R-Ni/clay) catalysts exhibited excellent activity and reusability in the total hydrogenation of biomass-derived furfural into tetrahydrofurfuryl alcohol under mild conditions. For the Raney Ni-bentonite (R-Ni/BNT) catalysts, the complete reaction was achieved at 393 K, 180 min giving almost 99% yield of tetrahydrofurfuryl alcohol. The R-Ni/BNT catalyst was found to be reusable without any significant loss of activity and selectivity for at least six consecutive runs.

APA, Harvard, Vancouver, ISO, and other styles

32

Mahdavi, Behzad, Philippe Chambrion, Julie Binette, Eric Martel, and Jean Lessard. "Electrocatalytic hydrogenation of conjugated enones on nickel boride, nickel, and Raney nickel electrodes." Canadian Journal of Chemistry 73, no. 6 (1995): 846–52. http://dx.doi.org/10.1139/v95-105.

Full text

Abstract:

The selectivity of the electrocatalytic hydrogenation (ECH) of conjugated enones to the corresponding carbonyl compounds has been investigated in aqueous methanol under constant current at nickel boride, fractal nickel, and Raney nickel electrodes made of pressed powders. The influence of various parameters (water percentage, pH, concentration of substrate, and current density) on the selectivity of the carbon–carbon double bond hydrogenation was studied with cyclohex-2-en-1-one at nickel boride electrodes. Under given electrolysis conditions, fractal nickel electrodes were found to give the h

APA, Harvard, Vancouver, ISO, and other styles

33

Rodiansono, Rodiansono, Atina Sabila Azzahra, Sadang Husain, and Pathur Razi Ansyah. "Effect of Precursor and Temperature Annealing on the Catalytic Activity of Intermetallic Ni3Sn2 Alloy." Bulletin of Chemical Reaction Engineering & Catalysis 17, no. 4 (2022): 743–54. http://dx.doi.org/10.9767/bcrec.17.4.15923.743-754.

Full text

Abstract:

The effect of nickel precursors and the temperature annealing to obtain intermetallic Ni3Sn2 alloy catalysts on its activity and selectivity in the selective hydrogenation of biomass-derived furfural (FFald) were investigated. Two types of nickel precursors (c.a., i) nickel metal (Ni°) derived from Raney®nickel and ii) nickel ion (Ni2+) derived from nickel chloride) were employed as the starting materials via hydrothermal at 423 K for 24 h followed by reduction with H2 at the elevated temperature of 573-873 K for 1.5 h. The physico-chemical properties of the intermetallic Ni3Sn2 were character

APA, Harvard, Vancouver, ISO, and other styles

34

Lin, Jhih-Fong, Melinda Mohl, Mikko Nelo, et al. "Facile synthesis of nanostructured carbon materials over RANEY® nickel catalyst films printed on Al2O3 and SiO2 substrates." Journal of Materials Chemistry C 3, no. 8 (2015): 1823–29. http://dx.doi.org/10.1039/c4tc02442g.

Full text

Abstract:

Films of porous RANEY® Ni catalyst particles deposited on substrates by stencil printing offer a facile platform for synthesizing nanostructured carbon/nickel composites for direct use as electrodes in electrochemical and field emitter devices.

APA, Harvard, Vancouver, ISO, and other styles

35

Hijratur, Rahmi, and Jamarun Novesar. "Raney nickel synthesis for glucose hydrogenation without hydrogen gas." World Journal of Advanced Research and Reviews 15, no. 3 (2022): 455–62. https://doi.org/10.5281/zenodo.7767148.

Full text

Abstract:

Hydrogenation of glucose into sorbitol has been a concern of researchers for a long time because it is an efficient and economical way of producing sorbitol. The researchers look for alternative metals that are higher in abundance and have good hydrogenation activity, such as nickel. In this study, porous nickel was prepared and used as a catalyst for the hydrogenation of glucose to sorbitol without adding hydrogen gas. The porous nickel needs two stages of making. First, prepare the Ni/Al metal alloys from the reduction of Ni(II) and Al(III). Second, the process of removing Al (0) metal from

APA, Harvard, Vancouver, ISO, and other styles

36

Bochkov, Andrei Y., Igor O. Akchurin, and Valerii F. Traven. "A new facile way for the preparation of 3-formylcoumarins." Heterocyclic Communications 23, no. 2 (2017): 75–78. http://dx.doi.org/10.1515/hc-2017-0038.

Full text

Abstract:

Abstract3-Formylcoumarins 2 are formed as single products in high yields upon reduction of 3-cyanocoumarins 1 with Raney nickel in formic acid. The starting materials 1 are easily accessible by Knoevenagel condensation of commercially available salicylaldehydes.

APA, Harvard, Vancouver, ISO, and other styles

37

ENDOH, Eiji, Hiroshi OTOUMA, Takeshi MORIMOTO, and Yoshio ODA. "Characterization of raney nickel composite-coated electrode." NIPPON KAGAKU KAISHI, no. 6 (1988): 858–63. http://dx.doi.org/10.1246/nikkashi.1988.858.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Krafft, Marie E., and William J. Crooks. "Deoxygenation of tertiary alcohols using Raney nickel." Journal of Organic Chemistry 53, no. 2 (1988): 432–34. http://dx.doi.org/10.1021/jo00237a041.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Villa, Marco, Erwin Verardi, Paolo Salvi, Paolo Nelli, and G. Zangari. "Electrochemical Activation of Raney Nickel Air Electrodes." ECS Transactions 11, no. 32 (2019): 105–13. http://dx.doi.org/10.1149/1.2992499.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Perosa, Alvise, and Pietro Tundo. "Selective Hydrogenolysis of Glycerol with Raney Nickel†." Industrial & Engineering Chemistry Research 44, no. 23 (2005): 8535–37. http://dx.doi.org/10.1021/ie0489251.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Koprivova, Klara, and Libor Cerveny. "Hydrogenation of nitrobenzonitriles using Raney nickel catalyst." Research on Chemical Intermediates 34, no. 1 (2008): 93–101. http://dx.doi.org/10.1007/bf03039138.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

GALLEZOT, P., P. CERINO, B. BLANC, G. FLECHE, and P. FUERTES. "Glucose hydrogenation on promoted raney-nickel catalysts." Journal of Catalysis 146, no. 1 (1994): 93–102. http://dx.doi.org/10.1016/0021-9517(94)90012-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Bock, Hans, Galina Tschmutowa, and Hans Peter Wolf. "Dimethylcarbene dimerisation on a raney nickel surface." Journal of the Chemical Society, Chemical Communications, no. 14 (1986): 1068. http://dx.doi.org/10.1039/c39860001068.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Krafft, Marie E., and Branka Zorc. "Oxidation of secondary alcohols using Raney nickel." Journal of Organic Chemistry 51, no. 26 (1986): 5482–84. http://dx.doi.org/10.1021/jo00376a099.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Choquette, Y., L. Brossard, and H. M�nard. "Leaching of Raney nickel composite-coated electrodes." Journal of Applied Electrochemistry 20, no. 5 (1990): 855–63. http://dx.doi.org/10.1007/bf01094317.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Bock, Hans, and Hans Peter Wolf. "Gasphasen-Reaktionen Organischer Verbindungen an Raney-Nickel." Angewandte Chemie 97, no. 5 (1985): 411–12. http://dx.doi.org/10.1002/ange.19850970517.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Kordulis, C., B. Doumain, J. P. Damon, J. Masson, J. L. Dallons, and F. Delannay. "Characterisation of Chromium Doped Raney Nickel Catalysts." Bulletin des Sociétés Chimiques Belges 94, no. 6 (2010): 371–77. http://dx.doi.org/10.1002/bscb.19850940602.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Ajit, Das, Mandy Hansda Kamala, Mahato Anupama, Singh Purnima, and Mahata Nagendranath. "Comparison of hydrogenation of nitrobenzene with chloronitrobenzenes on NiC composite catalyst." Journal of Indian Chemical Society Vol. 97, No. 12c, Dec 2020 (2020): 2948–52. https://doi.org/10.5281/zenodo.5654751.

Full text

Abstract:

Center for Adsorption and Reaction Engineering on Surface (CARES), Department of Chemistry, Sidho-Kanho-Birsha University, Purulia-723 104, West Bengal, India <em>E-mail:</em> nagendranath_mahata.chem@skbu.ac.in <em>Manuscript received online 04 December 2020, accepted 24 December 2020</em> Raney nickel was prepared by leaching out Al from a commercial Ni-Al (50/50) alloy by applying aqueous sodium hydroxide. Subsequently, methane was decomposed over Raney nickel in a tubular flow reactor at 395ºC to deposit carbon and thereby NiC composite catalyst was obtained. The NiC catalyst was char

APA, Harvard, Vancouver, ISO, and other styles

49

Koverda, Anna A., Alexander F. Betnev, and Evgeny R. Kofanov. "Synthesis of monomers for the preparation of optically active poly(amide–imide)s. Part 1. Synthesis of chiral aminocarboxylic acids containing an imide cycle and a fragment of the natural amino acid." Butlerov Communications 57, no. 2 (2019): 10–18. http://dx.doi.org/10.37952/roi-jbc-01/19-57-2-10.

Full text

Abstract:

In a previous work, it was shown that the imidization reaction of dystereomerically pure nitrophenylcycloalkanedicarboxylic acids with natural amino acids in acetic acid proceeds with partial racemization of the α-carbon center of the amino acid fragment. Carrying out the synthesis in DMF at room temperature allows to obtain imides with preservation of the configuration of all chiral centers. New aminocarboxylic acids were synthesized based on them, which are the starting compounds for the monomers of optically active PAI. We used various reduction systems to produce aromatic amine compounds c

APA, Harvard, Vancouver, ISO, and other styles

50

Khorshidi, Alireza, and Bahareh Ghorbannezhad. "A highly effective Ag–RANEY® nickel hybrid catalyst for reduction of nitrofurazone and aromatic nitro compounds in aqueous solution." RSC Advances 7, no. 48 (2017): 29938–43. http://dx.doi.org/10.1039/c7ra04343k.

Full text

Abstract:

RANEY® nickel reduced Ag<sup>+</sup> ions to form ultrafine spherical silver nanoparticles over itself, and the obtained hybrid material was used as catalyst for efficient and selective reduction of nitro compounds, in aqueous solution by using NaBH<sub>4</sub>.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!