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Dissertations / Theses on the topic 'Catalytic hydrolysis'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Ersoy, Oguz 1968. "Amide hydrolysis by catalytic antibodies." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38775.

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2

Chia, Timothy Wing-Heng. "The use of catalytic antibodies for glycoside hydrolysis." Thesis, University of Cambridge, 1993. https://www.repository.cam.ac.uk/handle/1810/272575.

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3

Holm, J. (Jana). "Catalytic pretreatment and hydrolysis of fibre sludge into reducing sugars." Doctoral thesis, Oulun yliopisto, 2013. http://urn.fi/urn:isbn:9789526202839.

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Abstract Decreasing oil reserves, the need to reduce CO2 emissions and increasing energy demand are issues that are forcing scientists to search for new opportunities in the field of energy. As a result, biofuels have been considered as one possible solution to solve part of these challenges. This research is one small part of that effort. For both human and economic reasons the use of edible raw materials for biofuel production is not sustainable. This study aims to convert forest industry waste, namely fibre sludge, into reducing sugars (glucose). This platform chemical can then be converted

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4

England, Pamela Michael Jeffrey. "Towards the generation of catalytic antibodies for glycoside hydrolysis." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/32645.

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5

Sawa, Masaaki. "Studies on the Generation of Catalytic Antibodies for Chemiluminescence and Glycoside Hydrolysis." Kyoto University, 1998. http://hdl.handle.net/2433/182395.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第7470号<br>農博第1003号<br>新制||農||766(附属図書館)<br>学位論文||H10||N3179(農学部図書室)<br>UT51-98-N92<br>京都大学大学院農学研究科農芸化学専攻<br>(主査)教授小田順一, 教授岩村俶, 教授上野民夫<br>学位規則第4条第1項該当

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6

Xue, Genqiang. "Homo- and heterodinuclear metallocomplexes for biomimetic hydrolysis : design, synthesis, structure and catalytic activity /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202004%20XUE.

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7

Masjedi, Mehdi. "Homogeneous Catalysts For The Hydrolysis Of Sodium Borohydride: Synthesis, Characterization And Catalytic Use." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612290/index.pdf.

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Recent study has shown that ruthenium(III) acetylacetonate acts as a homogeneous catalyst in the hydrolysis of sodium borohydride. When two equivalents of trimethylphosphite per ruthenium is added to the reaction solution containing sodium borohydride and ruthenium(III) acetylacetonate in the mixture of water and tetrahydrofuran, the rate of hydrogen generation is practically stopped (or reduced to the level of self hydrolysis). However, the catalytic hydrogen evolution of sodium borohydride restarts at an unexpectedly high rate in a certain period of time (induction time) after addition of tr

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8

Kim, Jung-Hee. "Developing artificial proteases and nucleases : catalytic hydrolysis of unactivated amides, nitriles and phosphates." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39317.

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Cis-diaqua cobalt complex ((L)Co(III)(OH$ sb2) sb2 rbrack sp{3+}$ promoted hydrolyses of phosphate esters, nitriles and carboxy amides are examined (L represents 1,4,7,10-tetraazacyclododecane (cyclen) and its N-methylated derivatives). ((Cyclen)Co(OH$ sb2) sb2 rbrack sp{3+}$ is more active than any other catalysts reported to date for hydrolyzing dimethyl phosphate, acetonitrile and formyl morpholine.<br>((Cyclen)Co(OH$ sb2) sb2 rbrack sp{3+}$ efficiently hydrolyzes dimethyl phosphate under mild conditions (k = 3.7 $ times$ 10$ sp{-5}$ M$ sp{-1}$ sec$ sp{-1}$ at pD 6.3, 60$ sp circ$C). This r

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9

Soames, Mark. "Sol-gel routes to platinum, platinum-tin and platinum-potassium reforming catalysts." Thesis, Brunel University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311280.

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10

Lesik, S. M., and I. M. Ivanenko. "Nickel ferrites and its catalytic properties." Thesis, Sumy State University, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67686.

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11

Kocak, Ebru. "Effect Of Stabilizer On The Catalytic Activity Of Cobalt(0) Nanoclusters Catalyst In The Hydrolysis Of Sodium Borohydride." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12611280/index.pdf.

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The development of new storage materials will facilitate the use of hydrogen as a major energy carrier in near future. Among the chemical hydrides used as hydrogen storage materials for supplying hydrogen at ambient temperature, sodium borohydride seems to be an ideal one because it is stable under ordinary conditions and liberates hydrogen gas in a safe and controllable way in aqueous solutions. However, self hydrolysis of sodium borohydride is so slow that requires a suitable catalyst. This work aims the use of water dispersible cobalt(0) nanoclusters having large portion of atoms on the sur

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12

SCOTTI, NICOLA. "ON THE RELATIONSHIPS BETWEEN CATALYTIC ACTIVITY AND MORPHOLOGY OF THE METALLIC PHASE IN CATALYSTS PREPARED BY CHEMISORPTION-HYDROLYSIS." Doctoral thesis, Università degli Studi di Milano, 2012. http://hdl.handle.net/2434/168363.

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Chemisorption–hydrolysis (CH) represents a fruitful preparation method, as it combines the simplicity of impregnation techniques, both in terms of handiness and cheapness, with the high metal dispersion obtained by anchoring techniques. In this work different Cu, Co and Co-Cu catalysts were prepared by CH. The characterization of CH copper silica materials agree on the formation of finely dispersed phase of CuO, easily reducible to metal copper at any copper loading. In particular CH method allows to keep a great dispersion obtaining very small copper particles also to an higher metal loadin

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13

Hlayhel, Taha. "Etude de l'adsorption du COS sur des oxydes métalliques : influence des propriétés acido-basiques de surface et des compétitions d'adsorption COS-CO2-H2S." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066243/document.

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Le COS est une impureté soufrée acide particulièrement problématique dans les industries du raffinage et de production d’énergie. Son élimination nécessite la mise en œuvre de méthodes spécifiques, nommément des procédés d’adsorption et d’hydrolyse catalytique.Ce travail de thèse a été entrepris dans le but d’identifier les leviers d’amélioration de ces procédés via l’étude des interactions du COS avec la surface d’oxydes métalliques utilisés comme adsorbant ou catalyseur, des phénomènes de compétition d’adsorption avec le CO2 et l’H2S, et du vieillissement des adsorbants.La combinaison de plu

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14

Hlayhel, Taha. "Etude de l'adsorption du COS sur des oxydes métalliques : influence des propriétés acido-basiques de surface et des compétitions d'adsorption COS-CO2-H2S." Electronic Thesis or Diss., Paris 6, 2014. http://www.theses.fr/2014PA066243.

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Le COS est une impureté soufrée acide particulièrement problématique dans les industries du raffinage et de production d’énergie. Son élimination nécessite la mise en œuvre de méthodes spécifiques, nommément des procédés d’adsorption et d’hydrolyse catalytique.Ce travail de thèse a été entrepris dans le but d’identifier les leviers d’amélioration de ces procédés via l’étude des interactions du COS avec la surface d’oxydes métalliques utilisés comme adsorbant ou catalyseur, des phénomènes de compétition d’adsorption avec le CO2 et l’H2S, et du vieillissement des adsorbants.La combinaison de plu

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15

Celik, Derya. "Rhodium(0) Nanoparticles Supported On Hydroxyapatite: Preparation, Characterization And Catalytic Use In Hydrogen Generation From Hydrolysis Of Hydrazine Borane And Ammonia Borane." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12614070/index.pdf.

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This dissertation presents the preparation and characterization of rhodium(0) nanoparticles supported on hydroxyapatite, and investigation of their catalytic activity in hydrogen generation from the hydrolysis of hydrazine-borane and ammonia-borane. Rh+3 ions were impregnated on hydroxyapatite by ion-exchange<br>then rhodium(0) nanoparticles supported on hydroxyapatite were formed in-situ during the hydrolysis of hydrazine-borane at room temperature. The rhodium(0) nanoparticles supported on hydroxyapatite were isolated as black powders by centrifugation and characterized by ICP-OES, SEM, TEM,

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16

Chung, Yongseong. "Diene substituent effects on the retro-Diels-Alder reaction and a formal catalytic cycle for ester hydrolysis based on the Michael/retro-Michael reaction /." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487668215805488.

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17

Воронова, А. С., та І. М. Іваненко. "Каталітичні властивості Ni-, Co-шпінелей та їх композитів у процесі гідролізу борогідриду натрію". Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67766.

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Питання пошуку альтернативних джерел енергії займають провідне місце в переліку нагальних проблем сучасності. Одним із найбільш перспективних напрямків є розвиток водневої енергетики, яка володіє рядом переваг: екологічність, доступність сировини, високі енергетичні показники. Основним недоліком є проблема зберігання і доставки водню, рішенням якої може бути зв’язування водню у стабільні сполуки – борогідриди. Особливої уваги заслуговує борогідрид натрію, який характеризується високою термічною стабільністю, комерційною доступністю та нетоксичністю. Незамінним аспектом застосування боро

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18

Sousa, Joao Fernandes De. "Valorisation chimique de l'amidon de mais par hydrolyse et hydrogenolyse sur un catalyseur solide a base de ruthénium." Vandoeuvre-les-Nancy, INPL, 1993. http://www.theses.fr/1993INPL090N.

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L'étude de la valorisation de l'amidon de maïs a été effectuée dans un réacteur triphasé mécaniquement agité. La phase liquide et la phase solide finement broyée évoluent en système fermé. La phase gazeuse se comporte comme un système semi-fermé dans la mesure où la pression totale dans le réacteur est maintenue constante et égale à 75 bars. Le catalyseur utilisé est à base de ruthénium imprégné sur charbon actif et la fraction massique de ruthénium est de 5%. Dans les conditions opératoires choisies, la réaction d'hydrogenolyse doit être réalisée en 2 étapes distinctes. La première est une ét

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19

Manrique, Salas Ester. "Development of new transition metal complexes for their use in sustainable catalytic processes and as antitumoral agents." Doctoral thesis, Universitat de Girona, 2018. http://hdl.handle.net/10803/668830.

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In this thesis we present the synthesis and characterization of different types of ruthenium complexes containing N-donor ligands together with monodentate ligands, along with their complete characterization through spectroscopic and electrochemical techniques. The complexes have been evaluated as catalysts for olefin epoxidation and nitrile hydration in 2/1 homogeneous phase. On the other hand, taking into account the importance and advantages of the heterogeneous catalysis, we have carried out the immobilization of some of these complexes on silica-type supports and magnetic nan

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20

Fadel, Firas. "High resolution structural and mechanistic study of human chitotriosidase (CHIT1)." Thesis, Strasbourg, 2014. http://www.theses.fr/2014STRAJ057/document.

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La chitotriosidase (CHIT1) est une chitinase humaine appartenant à la famille glycosyl hydrolase 18 (GH18) qui hydrolyse la chitine. CHIT1 présente plusieurs caractéristiques enzymatiques conservées dans la famille GH18 qui ne sont pas complètement comprises. Pour renforcer nos connaissances sur le mécanisme catalytique de CHIT1 et de la famille GH18, j'ai amélioré la résolution des structures obtenues par diffraction de rayon-X du domaine catalytique de CHIT1. Ces structures correspondent à la forme apo de CHIT1, pseudo-apo ainsi qu’en complexe avec la chitobiose ont été obtenues à des résolu

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21

Smith, Phillip R. "Generation of Biomarkers from Anthrax Spores by Catalysis and Analytical Pyrolysis." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd1005.pdf.

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22

Ashworth, Ian Woodward. "Intramolecular catalysis of phosphonoacetate hydrolysis." Thesis, University of Cambridge, 1994. https://www.repository.cam.ac.uk/handle/1810/272660.

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23

Dolmetsch, Troy R. "Phosphomolybdic Acid Catalysis of Cellulose Hydrolysis." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/honors/413.

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Renewable sources such as cellulose derived biofuels are sought after in order to replace fossil fuel sources that are currently used to meet energy demands. Cellulose is a biological polymer composed of a chain of glucose molecules. Hydrolysis of cellulosic materials then has potential to serve as a source of renewable energy in the form of biofuels. The crystalline structure of cellulose is very stable, and current methods of catalyzed hydrolysis are inefficient for industrial application. This project explores the use of phosphomolybdic acid (PMA) in water to catalyze hydrolysis of microcr

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24

Gordon, James William. "Ester hydrolysis by high silica zeolites." Thesis, University of Edinburgh, 1985. http://hdl.handle.net/1842/13936.

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25

Tossell, Katie Jayne. "Catalysis of phosphate ester hydrolysis through hydrogen bonding." Thesis, University of Sheffield, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.578696.

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This thesis describes the investigation of the effect of hydrogen bonding on the rate of phosphoryl transfer in the reaction of diethyl 8-dimethylamino-I-naphthyl phosphate 3 with a nucleophile. The study of the hydrolysis of triester 3 is in the literature; triester 3 is catalysed by the dimethylammonium general acid, with a rate acceleration of almost 106 in comparison to the hydrolysis of diethyl I-naphthyl phosphate. 58 To ascertain whether the reactivity of triester 3 is specific to this system, the methylation of the amine in triester 3 was altered. Triesters diethyl 8- amino-I-naphthyl

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26

Tholander, Fredrik Otto. "Catalytic mechanisms and evolution of leukotriene A₄ hydrolyse /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-952-1/.

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27

Bentes, Vera Lúcia Imbiriba. "Hidrólise básica de resíduos poliméricos de pet pós-consumo e degradação catalítica dos monômeros de partida." Universidade Federal do Amazonas, 2008. http://tede.ufam.edu.br/handle/tede/3325.

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Made available in DSpace on 2015-04-22T22:02:02Z (GMT). No. of bitstreams: 1 Dissertacao Vera Lucia Imbiriba Bentes.pdf: 2492256 bytes, checksum: 6177030a4e14eea635a818dbbb2b0e91 (MD5) Previous issue date: 2008-11-18<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The growing use and application of plastic materials have raised the index of residues of these materials in the great cities, mainly poli(ethylene tereftalate) (PET). Amongst the recycling techniques proposals to minimize the accumulation of these polymeric residues, the chemical recycling, has intensified the

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28

Lu, Fei. "Electrochemically Induced Urea to Ammonia on Ni Based Catalyst." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1502235953529178.

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29

Brown, Christopher John. "Efficient intramolecular general acid catalysis." Thesis, University of Cambridge, 1995. https://www.repository.cam.ac.uk/handle/1810/272266.

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30

Florez-Alvarez, Jose. "Investigation of the dependence of hydrolytic characteristics on haptenic structures." Thesis, Queen Mary, University of London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289861.

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31

Sonkaria, Sanjiv. "Kinetic characterisation of polyclonal hydrolytic catalytic antibodies and analogous enzymes." Thesis, Queen Mary, University of London, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271023.

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32

Peroza, Meza Carlos Arturo. "Factors affecting the alkaline hydrolysis of carbaryl in the presence of cationic surfactants." Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/6248.

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Alkaline degradation of Carbaryl in the presence of CTAB micelles has been reported as the most efficient method; however, the factors accounting for it are not yet clear. The main objective of this work was to study some of the factors affecting the alkaline degradation of Carbaryl in the presence of cetyl trimethylammonium bromide (CTAB). Three specific aims were researched in order to address the main objective. Solubility studies, UV-vis, fluorescence, and 1D-HNMR and 2D-HNMR spectroscopies were used to research the solubilization of carbaryl in CTAB micelles. Solubility studies showed tha

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33

Williams, Nicholas Hendrik. "Efficient and inefficient intramolecular reactions." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240146.

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34

Li, Binjie. "Carbonyl Catalysis: Hydrolysis of Organophosphorus Compounds and Application in Prebiotic Chemistry." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39818.

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Since late 1990s, organocatalysis has been widely explored in many aspects and achieved various difficult transformations. In this field, carbonyl catalysis, which could be traced back to 1860 has been developed with impressive progress including asymmetric variants. Over the years, major activation modes were developed for carbonyl catalysis including exploiting temporary intramolecularity to form catalytic tethers and transient intramolecular nucleophiles, dioxirane formation and imine formation. On the other hand, electrophilic activation is also an important area of organocatalysis where i

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35

Maddock, Stacey Claire. "Synthesis and characterization of novel imprinted microgels with hydrolytic catalytic activity." Thesis, Queen Mary, University of London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401695.

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36

Pasetto, Pamela. "Molecular imprinted catalytic microgels : synthesis and characterisation of binding and hydrolytic activity." Thesis, Queen Mary, University of London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.419533.

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37

Allen, Joanne Victoria. "Recent advances in asymmetric catalysis." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/27574.

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CHAPTER ONE reviews the literature, discussing aspects of transition metal mediated asymmetric catalysis in the presence of enantiomerically pure ligands. CHAPTER TWO discusses the asymmetric addition of dialkyl-zinc reagents to aromatic aldehydes. The work presented is particularly concerned with the design and construction of enantiomerically pure oxazoline ligands tethered to alcohols These ligands have proved effective in the acceleration of the alkylation reaction and are able to influence good levels of asymmetric induction in the resultant secondary alcohol products CHAPTER THREE examin

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38

Yue, Conghui. "Bridging the Gap in Biomass Conversion: Understanding Enzymatic Hydrolysis of Cellulose and Hydrogenative Degradation of Lignin at the Molecular Level." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627661055938336.

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39

Esteves, Lucas Fagundes. "Investigação computacional do mecanismo de quebra hidrolítica de ésteres de fosfato catalisado por um modelo biomimético da catecol oxidase." Universidade Federal de Juiz de Fora (UFJF), 2016. https://repositorio.ufjf.br/jspui/handle/ufjf/4412.

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Kennedy, Matthew R. "Non-covalent interactions and their role in biological and catalytic chemistry." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53044.

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The focus of this thesis is the question of how non-covalent interactions affect chemical systems' electronic and structural properties. Non-covalent interactions can exhibit a range of binding strengths, from strong electrostatically-bound salt bridges or multiple hydrogen bonds to weak dispersion-bound complexes such as rare gas dimers or the benzene dimer. To determine the interaction energies (IE) of non-covalent interactions one generally takes the supermolecular approach as described by the equation \begin{equation} E_{IE} = E_{AB} - E_{A} - E_{B}, \end{equation} where subscripts A

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41

Wright, Penelope A. "Mechanistic studies on the catalysis and inhibition of serine proteases." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302492.

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42

Marriott, Robert Edward. "Accelerated cleavage of phosphate esters." Thesis, University of Cambridge, 1994. https://www.repository.cam.ac.uk/handle/1810/272476.

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43

Gromov, Nikolay. "Transformation catalytique de la cellulose en milieu aqueux pour la production de molécules plateformes." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0156/document.

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Ce projet de thèse a concerné la recherche et le développement de catalyseurs multifonctionnels efficaces et de procédés catalytiques en une étape (hydrolyse-déshydratation, hydrolyse-oxydation) pour la transformation de la cellulose en produits chimiques à valeur ajoutée (glucose, 5-HMF, acide formique). Ces produits sont également connus sous le nom de molécules plateformes et ils présentent un intérêt dans une large gamme d'applications, par exemple, pour les industries alimentaires et chimiques et pour la production de carburants. Dans ce projet, des recherches systématiques sur la synthès

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44

Petrucci, Maria G. L. "New routes to heterogenized homogeneous catalysis via simple acid-base hydrolytic chemistry." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0027/NQ50297.pdf.

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45

Petrucci, Maria G. L. "New routes to heterogenized homogeneous catalysis via simple acid-base hydrolytic chemistry." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35963.

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A new methodology using simple acid-base hydrolysis of aminosilanes with molecules containing terminal hydroxyl groups, has been developed for the preparation of supports for heterogenized homogeneous catalysis. The flexibility of this approach has allowed the build-up of new materials ranging from simple organometallic thin films to complex organometallic-inorganic sol-gel networks, and organophosphine and metallodendrimers. The acid-base hydrolytic route to construct thin films containing phosphine and amine donor ligands on glass surfaces, eliminates the problems of the traditional surface

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46

Smith, Graham Murray. "Enzyme immobilisation and catalysis in ordered mesoporous silica." Thesis, University of St Andrews, 2008. http://hdl.handle.net/10023/573.

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A range of mesoporous materials based on SBA-15 have been prepared and characterised. The materials were templated by neutral block copolymer P123, and typically have a hexagonal (p6mm) pore structure, with high surface areas and narrow pore size distributions. The removal of the surfactant template by calcination and solvent extraction has been investigated. The aqueous stability of this material, and the hydrolysis of the surface was studied. Organic functional groups were incorporated into the silica surface by co-condensation, or by post synthesis grafting. A range of functional groups wer

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47

Van, Pelt Adam Henderson. "Stability of acid-modified activated carbons in hot liquid water and their application to biomass hydrolysis reactions." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/52024.

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In this work, the stability of acid-modified activated carbons is assessed in the typical biomass conversion reaction environment of 200 °C, 17 bar water. Activated carbons were modified with a variety of common liquid and gas phase methods and characterized. Acid-modified carbon catalysts were exposed to hot liquid water for 24 h and further characterized to determine the effect of this exposure on their surface chemistry. It was found that the liquid phase acidifying agents of H₂SO₄ and HNO₃ are most effective at adding acidic functionalities to the carbon. Exposure to hot liquid water was f

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48

Lee, Seungjin. "Hydrolysis of organophosphorous esters induced by nanostructured titania-based replicas of diatom microshells." Thesis, Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-05192006-110527/.

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49

Kupiainen, L. (Laura). "Dilute acid catalysed hydrolysis of cellulose – extension to formic acid." Doctoral thesis, Oulun yliopisto, 2012. http://urn.fi/urn:isbn:9789526200033.

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Abstract New methods are being sought for the production of chemicals, fuels and energy from renewable biomass. Lignocellulosic biomass consists mainly of cellulose, hemicellulose and lignin. Cellulose and hemicellulose can be converted to their building blocks, i.e. sugars, via hydrolysis. This thesis is focused on glucose production from cellulose by dilute acid hydrolysis. Acid hydrolysis has the drawback of limited glucose yields, but it has the potential to become a short-term solution for biochemical production. During acid hydrolysis, the cellulose chain is split into glucose, which und

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Duboc-Toia, Carole. "Réactivité chimique des complexes dinucléaires de fer (III) à pont oxo : applications en catalyse d'oxydation énantiosélective et en hydrolyse de phosphoesters." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10092.

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Modeliser le site actif d'une metalloenzyme est une approche indispensable a la caracterisation precise de son site metallique et a la comprehension de son mecanisme d'action. Au laboratoire, nous nous sommes plus particulierement interesses a deux enzymes la methane monooxygenase (mmo) et la phosphatase acide pourpre (pap) issues de la classe des proteines a fer oxo, enzymes contenant toutes au sein de leur site actif un systeme dinucleaire de fer (iii) ponte par un oxygene. Leurs activites catalytiques, oxydation d'alcanes pour la mmo et hydrolyse de phosphoesters pour la pap, ont ete reprod

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