Academic literature on the topic 'Sodium borohydride reduction'

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Journal articles on the topic "Sodium borohydride reduction"

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Cai, Ke Ying, and Ying Mei Zhou. "Reduction of Aromatic Nitro Compounds to Azoxy Compounds with Sodium Borohydride." Advanced Materials Research 1033-1034 (October 2014): 18–21. http://dx.doi.org/10.4028/www.scientific.net/amr.1033-1034.18.

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The reduction of aromatic nitro compounds to corresponding azoxy compounds with sodium borohydride was catalyzed by BiO(OH)/actived carbon (AC), which was prepared by equivalent-volume impregnation. The influences of catalyst, sodium borohydride and sodium hydroxide amount were investigated with 10 mmol of nitrobenzene as substrate in methanol at room temperature. The suitable reaction conditions are as follows: 0.2 g of catalyst, 10 mmol of sodium borohydride and 0.1 g of sodium hydroxide. Under the conditions, the seven aromatic nitro compounds were reduced to corresponding azoxy compounds w
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Basirun, Wan Jefrey, Syed Tawab Shah, Md Shalauddin, Shamima Akhter, Nazzatush Shimar Jamaludin, and Adeeb Hayyan. "A Review of Electrochemical Reduction of Sodium Metaborate." Energies 16, no. 1 (2022): 15. http://dx.doi.org/10.3390/en16010015.

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The recycling of sodium borohydride poses a huge challenge to the drive towards a hydrogen economy. Currently, mechano-chemical, thermo-chemical and electrochemical are the only reported methods of recycling sodium metaborate into sodium borohydride. Much attention has been devoted to the mechano-chemical and thermo-chemical methods of reduction, but little focus has been devoted to electrochemical methods. This review describes the electrochemical behaviour of borohydride (BH4−) and metaborate (BO2−) anions in alkaline solutions. The BH4− is stabilized in highly concentrated alkaline solution
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NOSE, ATSUKO, and TADAHIRO KUDO. "Reactions of sodium borohydride. IV. Reduction of aromatic sulfonyl chlorides with sodium borohydride." CHEMICAL & PHARMACEUTICAL BULLETIN 35, no. 5 (1987): 1770–76. http://dx.doi.org/10.1248/cpb.35.1770.

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Yamaguchi, Jun-Ichi, Emiko Shibuta, and Yoshie Oishi. "Simple Reduction of Hydantoins with Sodium Borohydride." International Journal of Organic Chemistry 04, no. 05 (2014): 286–91. http://dx.doi.org/10.4236/ijoc.2014.45031.

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Rao, H. Surya Prakash. "Reduction of Aroyl Azides with Sodium Borohydride." Synthetic Communications 20, no. 1 (1990): 45–51. http://dx.doi.org/10.1080/00397919008054614.

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Lu, Jianming, D. B. Dreisinger, and W. C. Cooper. "Cobalt precipitation by reduction with sodium borohydride." Hydrometallurgy 45, no. 3 (1997): 305–22. http://dx.doi.org/10.1016/s0304-386x(96)00086-2.

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Chieffi, André, Paulo H. Menezes, and João V. Comasseto. "Reduction of Organotellurium Trichlorides with Sodium Borohydride." Organometallics 16, no. 4 (1997): 809–11. http://dx.doi.org/10.1021/om960409q.

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de Resende, V. G., G. M. da Costa, E. De Grave, and L. Datas. "Chemical reduction of hematite by sodium borohydride." Hyperfine Interactions 165, no. 1-4 (2005): 113–19. http://dx.doi.org/10.1007/s10751-006-9254-0.

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R. Nawghare, Beena, Rekha R. Joshi та Pradeep D. Lokhande. "Chemoselective metal free deallylation of α-allyl-phenyl-carboxylic esters under reduction condition". Bulletin of the Chemical Society of Ethiopia 39, № 1 (2024): 131–39. http://dx.doi.org/10.4314/bcse.v39i1.11.

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A simple and efficient method for chemoselective deallylation of –COO-allyl group in presence of C-allyl group has been developed. C-allyl cleavage of α-methylene compounds was successfully completed by refluxing with excess sodium borohydride in methanol. The reagent's stability, ready availability and ease of handling encourage its usage for deallylation. KEY WORDS: C-allyl cleavage, Sodium borohydride, Chemoselectivity, Reduction Bull. Chem. Soc. Ethiop. 2025, 39(1), 131-139. DOI: https://dx.doi.org/10.4314/bcse.v39i1.11
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Zaitsev, B. А., L. G. Kleptsova, and I. D. Shvabskaya. "Synthesis of Disecondary Aromatic Diols." Журнал общей химии 94, no. 2 (2024): 174–84. http://dx.doi.org/10.31857/s0044460x24020022.

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The synthesis of disecondary aromatic diols (the main precursors for divinyl aromatic monomers) was carried out. The optimal conditions for the preparation of these diols by selective catalytic hydrogenation of aromatic diketones in the presence of Raney nickel and by reduction of these diketones by sodium borohydride were established. It was demonstrated that sodium borohydride reduction afforded the pure diols under mild and relatively safe conditions (in the systems of CHCl3–PEG400–H2O, at room temperature and atmospheric pressure).
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Dissertations / Theses on the topic "Sodium borohydride reduction"

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Rocha, Daniele Fernanda de Oliveira 1982. "Estudo da redução de iminas." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249529.

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Orientador: Antonio Claudio Herrera Braga<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-12T16:47:01Z (GMT). No. of bitstreams: 1 Rocha_DanieleFernandadeOliveira_M.pdf: 3918609 bytes, checksum: ca79955ba1bba5d8eb4ed332338d0115 (MD5) Previous issue date: 2008<br>Resumo: Neste trabalho foi estudado o comportamento de uma série de iminas estruturalmente análogas quando submetidas à biocatálise com fermento de pão e cenoura. Também foi testado NaBH4 em conjunto com alguns aminoálcoois de diferentes tamanhos, como 1-amino
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Kwon, Beatsam. "Catalytic reduction of organic pollutants using supported metal nanoparticles." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/23190/.

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Metal nanoparticle catalysts have in the last decades been extensively researched for their enhanced performance compared to their bulk counterpart. Properties of nanoparticles can be controlled by modifying their size and shape as well as adding a support and stabilizing agent. In this study, preformed colloidal gold nanoparticles supported on activated carbon were tested on the reduction of 4-nitrophenol by NaBH4, a model reaction for evaluating catalytic activity of metal nanoparticles and one with high significance in the remediation of industrial wastewaters. Methods of wastewater remedia
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Nandenha, Júlio. "Estudo da oxidação eletroquímica do ácido fórmico utilizando eletrocatalisadores Pd/C-Sb2O5.SnO2, PdAu/C-Sb2O5.SnO2, PdIr/C-Sb2O5.SnO2 e PdAulr/C-Sb2O5.SnO2 preparados via redução por borohidreto de sódio." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-29072016-133123/.

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Os eletrocatalisadores Pd/C, Pd/C-15%ATO, PdAu/C-15%ATO (90:10, 70:30 e 50:50), PdIr/C-15%ATO (90:10, 70:30 e 50:50) e PdAuIr/C-15%ATO (90:5:5, 70:20:10 e 50:45:5) foram preparados pelo método de redução por borohidreto de sódio. Esses eletrocatalisadores foram caracterizados por espectroscopia de energia dispersiva de raios X (EDX), difração de raios X (DRX) e microscopia eletrônica de transmissão (MET), enquanto que as atividades eletrocatalíticas para a oxidação eletroquímica do ácido fórmico em meios ácido e alcalino foram investigadas por voltametria cíclica, cronoamperometria e experimen
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BORCHI, MYRIAM. "Reduction asymetrique de cetones prochirales par le borohydrure de sodium modifie en reactif chiral." Nice, 1997. http://www.theses.fr/1997NICE5141.

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Ce memoire concerne la reduction enantioselective de cetones prochirales par le borohydrure de sodium, modifie a l'aide de composes chiraux encore jamais utilises tels que les alcools et les cetones terpeniques. Les alcools secondaires correspondants sont obtenus avec des exces enantiomeriques pouvant atteindre 50%. Il est possible d'obtenir en exces l'enantiomere (r) ou (s) de l'alcool en changeant la configuration absolue de l'auxiliaire chiral utilise. La reduction asymetrique de l'acetophenone par le borohydrure de sodium modifie par un equivalent d'acide carboxylique optiquement actif et
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Levasseur, Frédéric. "Réduction par le borohydrure de sodium, catalysée par les complexes de métaux de transition, un nouveau ligand : l'oxime de l'alpha-pyrrolidino hydratropaldéhyde." Rouen, 1997. http://www.theses.fr/1997ROUES075.

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La réduction de composés carbonylés conjugués par le borohydrure de sodium catalysée par les complexes de métaux de transition nécessite la présence d'un sel métallique et d'un ligand correctement choisis pour obtenir des résultats optima. Les propriétés des complexes de la diméthylglyoxime et de la diphénylglyoxime avec les sels de cobalt et de nickel ont fait l'objet d'une étude comparative. L'utilisation d'un nouveau ligand, l'oxime de l'α-pyrrolidino hydratropaldéhyde, facilement préparée à partir de l'amnioaldéhyde précurseur, donne de meilleurs résultats que les dioximes pour la réductio
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Mauger, Jacques. "Reduction selective par le borohydrure de sodium de fonctions esters ou nitrile : acces aux alpha -cyano alpha -hydroxymethyl epoxydes ou aux alpha -cyano alpha -aminomethyl epoxydes : ouverture de ces nouveaux epoxydes par les hydracides." Rennes 1, 1986. http://www.theses.fr/1986REN10095.

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L'objectif de la presente etude est la synthese de nouveaux cyano epoxydes a partir des gem dicyano epoxydes et des alpha -cyano alpha -ethoxycarbonyl epoxydes. Pour cela nous avons entrepris la recherche d'une methode de reduction selective d'un groupement ester ou nitrile dans ces epoxydes. Le borohydrure de sodium est un reducteur de choix qui nous a permis de preparer les alpha -cyano alpha -hydroxymethyl epoxydes et les alpha -cyano alpha -methylamino epoxydes. Cette reaction se caracterise par des conditions experimentales tres douces, de bons rendements, une chimioselectivite remarquabl
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YOVANOVICH, MARCOS. "Oxidação eletroquímica do ácido fórmico em eletrólito ácido e básico utilizando eletrocatalisadores PtBi/C e PdBi/C preparados pelo método de redução via borohidreto de sódio adição rápida." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26799.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2016-11-11T09:51:24Z No. of bitstreams: 0<br>Made available in DSpace on 2016-11-11T09:51:24Z (GMT). No. of bitstreams: 0<br>PtBi/C e PdBi/C foram preparados em diferentes razões atômicas (100:0, 90:10, 80:20, 70:30, 60:40 e 50:50) pelo método de redução via borohidreto de sódio (com adição total da solução de borohidreto em uma única etapa) utilizando H2PtCl6.6H2O, Pd(NO3)2, (BiNO3)3.5H2O como fonte de metais, Vulcan® (XC72-Cabot) como suporte de carbono e com uma carga metálica correspondente a 20% em massa. Os eletrocatalisadores obtid
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NANDENHA, JÚLIO. "Estudo da oxidação eletroquímica do ácido fórmico utilizando eletrocatalisadores Pd/C-Sb2O5.SnO2, PdAu/C-Sb2O5.SnO2, PdIr/C-Sb2O5.SnO2 e PdAulr/C-Sb2O5.SnO2 preparados via redução por borohidreto de sódio." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26815.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2016-11-11T12:52:46Z No. of bitstreams: 0<br>Made available in DSpace on 2016-11-11T12:52:46Z (GMT). No. of bitstreams: 0<br>Os eletrocatalisadores Pd/C, Pd/C-15%ATO, PdAu/C-15%ATO (90:10, 70:30 e 50:50), PdIr/C-15%ATO (90:10, 70:30 e 50:50) e PdAuIr/C-15%ATO (90:5:5, 70:20:10 e 50:45:5) foram preparados pelo método de redução por borohidreto de sódio. Esses eletrocatalisadores foram caracterizados por espectroscopia de energia dispersiva de raios X (EDX), difração de raios X (DRX) e microscopia eletrônica de transmissão (MET), enquanto q
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Lu, Jianming. "Cobalt precipitation by reduction with sodium borohydride." Thesis, 1995. http://hdl.handle.net/2429/4232.

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The reaction of cobalt reduction with borohydride is very complicated. Various authors obtained different reaction stoichiometries and have proposed a number of mechanisms. There are conflicting claims about the removal of cobalt from zinc electrolyte with sodium borohydride. The present research has focused on the stoichiometry of cobalt reduction with borohydride and on the removal of cobalt from zinc sulphate solution. Cobalt reduction with borohydride releases hydrogen ions resulting in a decrease in the pH of the solution. The efficiency of cobalt reduction increased with increasing
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Book chapters on the topic "Sodium borohydride reduction"

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de Resende, V. G., G. M. da Costa, E. De Grave, and L. Datas. "Chemical reduction of hematite by sodium borohydride." In ICAME 2005. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-49850-6_16.

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Das, Dimitra, Kalyan Kumar Chattopadhyay, and Somnath Mukherjee. "Sodium Borohydride Assisted Catalytic Reduction of Toxic Pollutants by Carbon and Nitrogen Based Poly-meric Compounds: A Review." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-4041-7_34.

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Van Orden, L. J., R. Jasti, and S. D. Rychnovsky. "Sodium Borohydride Reduction." In Ethers. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-037-00009.

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Seela, F., N. Ramzaeva, and H. Rosemeyer. "By Reduction with Sodium Borohydride." In Six-Membered Hetarenes with Two Identical Heteroatoms. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-016-01330.

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Wicha, J. "Reduction of Tosylhydrazones with Sodium Borohydride." In Alkanes. Georg Thieme Verlag KG, 2009. http://dx.doi.org/10.1055/sos-sd-048-00052.

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Comasseto, J. V., and A. S. Guarezemini. "Reduction of Dialkyl Ditellurides with Sodium Borohydride." In Sulfur, Selenium, and Tellurium. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-01536.

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Clark, A. J. "Reduction of Tin Halides with Sodium Borohydride." In Compounds of Group 14 (Ge, Sn, Pb). Georg Thieme Verlag KG, 2003. http://dx.doi.org/10.1055/sos-sd-005-00193.

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Block, E. "Reduction with Lithium Aluminum Hydride or Sodium Borohydride." In Sulfur, Selenium, and Tellurium. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00802.

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Block, E. "Reduction by Catalytic Hydrogenation or with Sodium Borohydride." In Sulfur, Selenium, and Tellurium. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-039-00847.

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Li, W.-R. "Regioselective Reduction with the Sodium Borohydride/Iodine System." In Three Carbon-Heteroatom Bonds: Esters and Lactones; Peroxy Acids and R(CO)OX Compounds; R(CO)X, X=S, Se, Te. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-021-00202.

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Conference papers on the topic "Sodium borohydride reduction"

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Muda, M. R., Muhammad M. Ramli, Siti S. Mat Isa, et al. "Fundamental study of reduction graphene oxide by sodium borohydride for gas sensor application." In 11TH ASIAN CONFERENCE ON CHEMICAL SENSORS: (ACCS2015). Author(s), 2017. http://dx.doi.org/10.1063/1.4975267.

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Perez-Raya, Isaac, Michael W. Ellis, Abel Hernandez-Guerrero, Francisco Elizalde-Blancas, Carlos U. Gonzalez-Valle, and Luis D. Lorenzini-Gutierrez. "A Comparative 1D Analysis of PEM, SO and DB Fuel Cells." In ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/esda2014-20568.

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Although fuel cells represent an attractive alternative for electricity generation, different technical problems, such as the hydrogen storage, have not been solved, as yet. Nowadays direct sodium borohydride fuel cells are considered as a promising technology since NaBH4 (fuel) is a stable, nonflammable and nontoxic liquid solution. In the present study a one-dimensional numerical study of a proton exchange membrane, a solid oxide, and a direct sodium borohydride fuel cell is performed. The objective of this work is to compare qualitatively the fuel cell performance between these technologies
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Sudirman, Weldan Z. Lubis, Mujamilah, Grace Tj Sulungbudi, and Nur Rahmayani. "Synthesis and characterization of magnetic nanoparticles Fe/Fe oxide of sodium borohydride reduction results within chitosan hydrogel." In 4TH INTERNATIONAL SEMINAR ON CHEMISTRY. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0051848.

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Ahsan, Syed Saad, and David Erickson. "Microfluidic Photocatalytic Water-Splitting Reactors." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87860.

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In this work, we present a novel microfluidic photocatalytic water-splitting reactor. Optofluidics offers advantages over conventional reactors in terms of improved photon transfer efficiency and mass transfer efficiency and are therefore the ideal platform for photocatalytic reactions. Our device is a planar optofluidic device which we used to study the kinetics of Platinum-Impregnated Titanium Oxide as the oxygen and hydrogen producing photocatalyst redox mediated by Iodide/Iodate species. We deposit our catalysts via a sol-gel method while the platinum co-catalyst is added by wet impregnati
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