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Готові списки джерел за темами / Catalyst Ru

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Добірка наукової літератури з теми "Catalyst Ru"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Catalyst Ru"

1

Liu, Jiajia, Xiao Ning Tian, and Xiu Song Zhao. "Hydrogenation of Glucose over Ru Nanoparticles Embedded in Templated Porous Carbon." Australian Journal of Chemistry 62, no. 9 (2009): 1020. http://dx.doi.org/10.1071/ch09132.

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Анотація:

Ruthenium (Ru) nanoparticles incorporated into the pore walls of porous carbon was used as a catalyst in glucose hydrogenation to produce sorbitol. In comparison with other catalysts, including commercial catalysts and catalysts prepared using other methods, the Ru-C nanostructured catalyst displayed higher catalytic activity and stability. These effects were associated with the enhanced contact between the Ru nanoparticles and carbon matrix, as well as the unblocked pores of the catalyst.

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2

Yuan, B., Z. Sun, Y. X. Zhou, M. W. Zhao, A. Wang, and Y. T. Peng. "Preparation and performance evaluation of hydrogen-producing catalysts for diesel reforming." Journal of Physics: Conference Series 2689, no. 1 (2024): 012012. http://dx.doi.org/10.1088/1742-6596/2689/1/012012.

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Abstract Ru/Al2O3 catalyst was prepared by standard impregnation method. The catalytic reforming performance of Ru/Al2O3 and commercial high nickel/low nickel catalysts on commercial No.0 diesel oil was studied. The regeneration method of carbon-deposited catalyst was also discussed. The results show that commercial low nickel catalyst has poor catalytic activity and stability for diesel, and increasing the water-carbon ratio can slightly improve the conversion rate of diesel. Increasing the reforming reaction temperature and adding methanol additives can effectively improve the catalytic acti

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3

Li, Yuanfeng, Hao Guo, Jing Xiong, et al. "The Catalyst of Ruthenium Nanoparticles Decorated Silicalite-1 Zeolite for Boosting Catalytic Soot Oxidation." Catalysts 13, no. 8 (2023): 1167. http://dx.doi.org/10.3390/catal13081167.

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Herein, the Ruthenium nanoparticles (NPs) with the size of 12 nm were decorated on the hexagonal prism silicalite-1 (Ru/S-1) by the gas bubbling-assisted membrane reduction method (GBMR). The adsorption/activation properties are improved for reactant molecules due to the formation of an interfacial structure that enhances the interaction between the Ru NPs and S-1. The Ru/S-1 catalyst displays the highest catalytic activity (T50 = 356 °C) and CO2 selectivity (SCO2m = 99.9%). Moreover, no obvious deactivation was observed over the Ru/S-1 catalyst even after five cycles, and the values of T50 an

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4

Yang, Dae-Soo, Kwang-Sik Sim, Hai-Doo Kwen, and Seong-Ho Choi. "Radiolytic Synthesis of Pt-Ru Catalysts Based on Functional Polymer-Grafted MWNT and Their Catalytic Efficiency for CO and MeOH." Journal of Nanomaterials 2011 (2011): 1–8. http://dx.doi.org/10.1155/2011/134721.

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Анотація:

Pt-Ru catalysts based on functional polymer-grafted MWNT (Pt-Ru@FP-MWNT) were prepared by radiolytic deposition of Pt-Ru nanoparticles on functional polymer-grafted multiwalled carbon nanotube (FP-MWNT). Three different types of functional polymers, poly(acrylic acid) (PAAc), poly(methacrylic acid) (PMAc), and poly(vinylphenyl boronic acid) (PVPBAc), were grafted on the MWNT surface by radiation-induced graft polymerization (RIGP). Then, Pt-Ru nanoparticles were deposited onto the FP-MWNT supports by the reduction of metal ions usingγ-irradiation to obtain Pt-Ru@FP-MWNT catalysts. The Pt-Ru@FP

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5

Rivière, Maxime, Noémie Perret, Damien Delcroix, Amandine Cabiac, Catherine Pinel, and Michèle Besson. "Ru-(Mn-M)OX Solid Base Catalysts for the Upgrading of Xylitol to Glycols in Water." Catalysts 8, no. 8 (2018): 331. http://dx.doi.org/10.3390/catal8080331.

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Анотація:

A series of Ru-(Mn-M)OX catalysts (M: Al, Ti, Zr, Zn) prepared by co-precipitation were investigated in the hydrogenolysis of xylitol in water to ethylene glycol, propylene glycol and glycerol at 200 °C and 60 bar of H2. The catalyst promoted with Al, Ru-(Mn-Al)OX, showed superior activity (57 h−1) and a high global selectivity to glycols and glycerol of 58% at 80% xylitol conversion. In comparison, the catalyst prepared by loading Ru on (Mn-Al)OX, Ru/(Mn-Al)OX was more active (111 h−1) but less selective (37%) than Ru-(Mn-Al)OX. Characterization of these catalysts by XRD, BET, CO2-TPD, NH3-TP

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6

Bae, Hyoung Bong, Jung Ho Ryu, Bok Soo Byun, Seong Ho Choi, Sang Ho Kim, and Chul Gyun Hwang. "Radiolytic Deposition of Pt-Ru Catalysts on the Conductive Polymer Coated MWNT and their Catalytic Efficiency for CO and MeOH." Advanced Materials Research 47-50 (June 2008): 1478–81. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.1478.

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Анотація:

Pt-Ru@CP-MWNT catalysts were prepared by radiolytic deposition of Pt-Ru nanoparticles on conduction polymer (CP) coated multi walled carbon nanotubes (MWNTs) surfce. Three different types of conducting polymers; polypyrrole(PPy), polyaniline(PANI), and polythiophene (PTh), were coated on the MWNTs surface by in situ polymerization. Then Pt-Ru nanoparticles were deposited onto CP-MWNTs composite by the reduction of metal ions using gamma-irradiation to obtain Pt-Ru@CP-MWNT catalysts. The size, morphology and composition of Pt-Ru@CP-MWNT catalysts were characterized by SEM, TEM and elemental ana

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7

He, Zhenhong, Qingli Qian, Zhaofu Zhang, et al. "Synthesis of higher alcohols from CO 2 hydrogenation over a PtRu/Fe 2 O 3 catalyst under supercritical condition." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373, no. 2057 (2015): 20150006. http://dx.doi.org/10.1098/rsta.2015.0006.

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Анотація:

Hydrogenation of CO 2 to alcohols is of great importance, especially when producing higher alcohols. In this work, we synthesized heterogeneous PtRu/Fe 2 O 3 , in which the Pt and Ru bimetallic catalysts were supported on Fe 2 O 3 . The catalyst was used to catalyse CO 2 hydrogenation to alcohols. It was demonstrated that the activity and selectivity could be tuned by the bimetallic composition, and the catalyst with a Pt to Ru molar ratio of 1:2 (Pt 1 Ru 2 /Fe 2 O 3 ) had high activity and selectivity at 200°C, which is very low for heterogeneous hydrogenation of CO 2 to produce higher alcoho

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8

Song, Aiying, and Gongxuan Lu. "Enhancement of Pt–Ru catalytic activity for catalytic wet air oxidation of methylamine via tuning the Ru surface chemical state and dispersion by Pt addition." RSC Adv. 4, no. 30 (2014): 15325–31. http://dx.doi.org/10.1039/c4ra00646a.

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Анотація:

Ru–Pt, Pt and Ru catalysts supported on Al<sub>2</sub>O<sub>3</sub>–ZrO<sub>2</sub> were prepared by impregnation methods. The as-prepared catalysts were employed in the catalytic wet air oxidation of methylamine. We found that Pt addition could improve the catalytic activity of the Ru catalyst by tuning the Ru surface chemical state and the dispersion of active species in the bimetallic catalyst. CWAO of MA follows a chemisorption mechanism.

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9

Oh, Kyung-Ryul, Sanil E. Sivan, Changho Yoo, Do-Young Hong, and Young Kyu Hwang. "Trimeric Ruthenium Cluster-Derived Ru Nanoparticles Dispersed in MIL-101(Cr) for Catalytic Transfer Hydrogenation." Catalysts 12, no. 9 (2022): 1010. http://dx.doi.org/10.3390/catal12091010.

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Анотація:

The synthesis of highly dispersed metal nanoparticles supported on metal–organic frameworks has been widely studied as a means to provide high-performance heterogeneous catalysts. Here, a Ru-nanoparticles-supported MIL-101(Cr) catalyst was prepared via a diamine and oxo-centered trimeric ruthenium cluster ([Ru3(μ3-O)(μ-CH3COO)6(H2O)3]CH3COO), Ru3 cluster sequential grafting, followed by alcohol reduction. Ethylenediamine (ED) acted as the linker, coordinating with unsaturated sites on both MIL-101(Cr) and the Ru3 cluster to produce Ru3-ED-MIL-101(Cr), after which selective alcohol reduction pr

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10

Hamzah, Noraini, Wan Nor Roslam Wan Isahak, Nadia Farhana Adnan, Nor Asikin Mohamad Nordin, Mohamad Bin Kassim, and Mohd Ambar Yarmo. "Catalytic Activity and Physical Properties of Nanoparticles Metal Supported on Bentonite for Hydrogenolysis of Glycerol." Advanced Materials Research 364 (October 2011): 211–16. http://dx.doi.org/10.4028/www.scientific.net/amr.364.211.

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Анотація:

Catalysts prepared from a variety of noble metal (Os, Ru, Pd and Au) supported on bentonite using impregnation method were studied and it found these series catalyst system gave different activity and selectivity. Among these catalysts, Os/bentonite and Ru/bentonite catalyst showed high activity in glycerol hydrogenolysis reaction at 150°C, 2.0 MPa initial hydrogen pressure for 7 hours. TEM analysis revealed that these nanometal particles catalyst have different in size and result showed that Os and Ru which have smaller average size in range 1-3 nm gave high activity which are 54.1% and 61.2%

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Дисертації з теми "Catalyst Ru"

1

Hartmann, Heinrich [Verfasser]. "Adsorption properties of bimetallic PdRu/Ru(0001) and Pt/Ru(0001) model catalyst surfaces / Heinrich Hartmann." Ulm : Universität Ulm. Fakultät für Naturwissenschaften, 2013. http://d-nb.info/1042709114/34.

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2

Dasgupta, Debalina. "ENHANCING GAS PHASE FISCHER-TROPSCH SYNTHESIS CATALYST DESIGN." Available to subscribers only, 2008. http://proquest.umi.com/pqdweb?did=1674093841&sid=6&Fmt=2&clientId=1509&RQT=309&VName=PQD.

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Анотація:

Thesis (Ph. D.)--Southern Illinois University Carbondale, 2008.<br>"College of Engineering." Keywords: Bimetallic, Catalysts, Iron-cobalt, Fischer-Tropsch synthesis, Ruthenium Includes bibliographical references (p. 123-134). Also available online.

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3

Mihai, Irina Elena <1994&gt. "Hydrogenolysis of 5-hydroxymethylfurfural (HMF) to C6 polyols using Ru/C as catalyst." Master's Degree Thesis, Università Ca' Foscari Venezia, 2022. http://hdl.handle.net/10579/21521.

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Анотація:

In a world of increasing demand for energy and new sources for fuels and chemicals, biomass is considered a foreseeable source for biofuels, biochemicals and materials. Among the lignocellulosic biomass derivatives for the synthesis of chemicals there is hydroxymethylfurfural (HMF). This thesis work was focused on the hydrogenation and hydrogenolysis of HMF and its derivatives, BHMF, BHMTHF and HHD, to obtain C6 polyols. These, combined with 2,5-furandicarboxylic acid (FDCA), an HMF oxidation product, could be used to produce bioplastics. The reactions were carried out principally in water, bu

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4

Zhao, Yuanyuan. "Hydrogenation of aqueous acetic acid to bioethanol over TiO₂-supported Ru-Sn and Ni-Sn catalysts." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263753.

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5

Zhao, Shengliang. "Supramolecular Ru II, Pt II Complexes Bridged by 2,3,5,6-tetrakis(2-pyridyl)pyrazine (tppz)." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/77321.

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Анотація:

The main theme of this dissertation is the study of two racemic compounds: a bimetallic complex, [(tpy)Ru(tppz)PtCl](PF₆)₃, and a trimetallic complex, [ClPt(tppz)Ru(tppz)PtCl](PF₆)₄, in solution and in the solid state, where tpy is 2,2':6',2''-terpyridine and tppz is 2,3,5,6-tetrakis(2-pyridyl)pyrazine. These two supramolecular assemblies display remarkably different stereochemistry, electrochemistry and photochemistry. The chapters in this document deal with a multidisciplinary project that is fundamental to the design and synthesis of similar entities with potential applications as antitumor

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6

Olaiya, Babatunde Samuel. "Stabilized Photocatalytic Hydrogen Generation using a Molecular Ru(II) Sensitizer, a Molecular Cobalt Catalyst and an Amine Derivative as an Electron Donor." Bowling Green State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1371066177.

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7

Pereira, João Clécio Alves. "Desenvolvimento de complexo de Ru(II) com 3-metilpiperidina para atuar como catalisador em reações de polimerização via metátese de olefinas cíclicas." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/75/75135/tde-16032018-102844/.

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Анотація:

A molécula de 3-metilpiperidina (3-Mepip) foi investigada como ligante ancilar em um novo complexo do tipo [RuCl2(PPh3)2(amina)] em polimerização via metátese de olefinas ciclicas por abertura de anel (ROMP) de norborneno (NBE) e norbornadieno (NBD). A síntese do novo complexo foi realizada partindo-se do complexo precursor [RuCl2(PPh3)3], e foi caracterizado por: EPR, análise elementar de CHN, infravermelho (FTIR) e RMN de 31P. Com base nos resultados obtidos é possível propor um complexo pentacoordenado com geometria pirâmide de base quadrada (PBQ), estando os íons cloretos trans-posionados

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8

Pereira, Luis Gustavo da Silva. "Avaliação do mecanismo de oxidação de hidrogênio contaminado por monóxido de carbono em células PEMFC contendo catalisadores anódicos baseados em Pt-M/C (M=Ru, Mo, Fe e W)." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/75/75131/tde-11032010-110241/.

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Анотація:

A busca por fontes alternativas de energia é uma tendência mundial e, neste contexto, as células a combustível alimentadas com hidrogênio obtido pela reforma de biocombustíveis constitui uma das alternativas mais promissoras. Entretanto, o desempenho das células a combustível de membrana de troca protônica (PEMFC) com ânodos baseados em Pt é drasticamente reduzido quando se utiliza hidrogênio contaminado por CO, o qual é produzido no processo de reforma. Neste trabalho, a eletrocatálise da tolerância ao CO e a estabilidade de Pt/C, PtRu/C, PtFe/C, PtMo/C e PtW/C como eletrocatlisadores anódico

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9

Le, Phuong Thu. "Oxydation en voie humide des effluents des distilleries d'alcool à partir de canne à sucre en présence de catalyseurs Ru et Pt supportés sur TiO2 ou ZrO2." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10203/document.

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La vinasse est un effluent aqueux issu des distilleries d'éthanol produit à partir de mélasse de canne à sucre, caractérisé par une couleur intense, une forte Demande Chimique en Oxygène (DCO) et un faible Demande Biologique en Oxygène (DBO). Le traitement de ce type d'effluent par Oxydation en Voie Humide (OVH) a fait l'objet d'une étude sur catalyseurs métaux nobles supportés sur TiO2 ou ZrO2 à 190-210°C sous 50-70 bar d'air. L'addition de catalyseurs au Ru permet la minéralisation complète de la partie carbone des polluants modèles (saccharose, polyéthylène glycol, mélanoïdine) ou des efflu

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10

Aslan, Mustafa Yasin. "Supported Ru Based Ammonia Synthesis Catalysts." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615178/index.pdf.

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Ru/C type ammonia synthesis catalysts are known to be poisoned by hydrogen. In order to elucidate a mechanism for hydrogen poisoning, H2 adsorption and spillover on Ru based ammonia synthesis catalysts were investigated. Supported Ru catalysts and Na promoted Ru catalyst were prepared by incipient wetness impregnation of Ru(NO)(NO3)3 on SiO2, SBA-15, CNT and Vulcan supports. Dispersion value of the catalysts was determined via H2 chemisorption and Transmission Electron Microscopy (TEM) characterization techniques. Over SBA-15 support, the dispersion of the catalyst determined by two different

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Книги з теми "Catalyst Ru"

1

Scott, M. W. CO hydrogenation over Ru-Mn supported BI-metallic catalyst. UMIST, 1995.

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2

Gascoin, F. Co hydrogenation over Ru-Co/SiO2 catalysts. UMIST, 1994.

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3

Moman, A. A. CO hydrogenation over Ru-Cs/SiO2 catalysts. UMIST, 1994.

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4

Tungkamani, S. CO hydrogenation over Ru-Rb/SiO2 catalysts. UMIST, 1996.

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5

Fatolas, K. CO Hydrogenation over Ru - Mn/SiO2 catalysts. UMIST, 1996.

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6

Guinot, C. Martinez. Co Hyrogenation over ru-mn/sio2 catalysts. UMIST, 1995.

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7

Verbrugge, Alwin S. CO hydrogenation over Ru-Cu/SiO2 catalysts. UMIST, 1996.

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8

T. R. H. E. Burm. Carbon monoxide hydrogenation over Ru-Cu/Al2O3 catalysts. UMIST, 1996.

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9

Chene, G. The Fischer-Tropsch reaction over Ru-Mn silica supported catalysts. UMIST, 1997.

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10

Al-Shammary, A. F. Y. Support effects with Ru, Co, and Pd catalysts for the hydrogen and carbon monoxide reaction. University of Birmingham, 1991.

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Частини книг з теми "Catalyst Ru"

1

Liu, Zhongyi, Shouchang Liu, and Zhongjun Li. "Fourth-Generation Catalyst of Benzene-Selective Hydrogenation to Cyclohexene—Ru–Zn@BZSS Core-Shell Catalyst." In Catalytic Technology for Selective Hydrogenation of Benzene to Cyclohexene. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6411-6_6.

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2

Liang, C. H., Z. L. Li, J. S. Qiu, Z. B. Wei, Q. Xin, and C. Li. "Graphitic Nanofilaments: A Superior Support of Ru-Ba Catalyst for Ammonia Synthesis." In Nanotechnology in Catalysis. Springer US, 2004. http://dx.doi.org/10.1007/978-1-4419-9048-8_25.

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3

Javaid, Rahat, Tetsuya Nanba, and Hideyuki Matsumoto. "Kinetic Analysis of Ammonia Production on Ru Catalyst Under High Pressure Conditions." In CO2 Free Ammonia as an Energy Carrier. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4767-4_18.

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4

Gu, Tianbao, Samuel Simon Araya, and Vincenzo Liso. "CFD Modeling of NH3 Synthesis on Ru-Based Catalyst for Hydrogen Storage and Transport." In Springer Proceedings in Physics. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8585-2_5.

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5

Koo, Kee Young, Hyun Ji Eom, Un Ho Jung, and Wang Lai Yoon. "Preferential CO Oxidation Over Ru/Al2O3-Coated Metal Monolith Catalyst for Small-Scale Fuel Processor." In Progress in Clean Energy, Volume 1. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-16709-1_47.

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6

Göbölös, S., N. Mahata, and J. L. Margitfalvi. "Rational Catalyst Selection and Optimization Versus Combinatorial? Case Study: Hydrogenolysys of Ethyl Laurate to 1-Dodecanol on Ru(Rh)-Sn(Re)/γ-Al2O3 Catalysts." In Principles and Methods for Accelerated Catalyst Design and Testing. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0554-8_19.

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7

Liu, Zhongyi, Shouchang Liu, and Zhongjun Li. "The Second-Generation Catalyst for Selective Hydrogenation of Benzene to Cyclohexene-Ru-Zn-Na2SiO3-PEG-10000." In Catalytic Technology for Selective Hydrogenation of Benzene to Cyclohexene. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6411-6_4.

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8

Clercq, B., T. Opstal, K. Melis, and F. Verpoort. "Heterogenation of a Shiff Base Substituted Grubbs Catalyst and A Ru-Dimer to Perform ROMP Reactions." In Ring Opening Metathesis Polymerisation and Related Chemistry. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0373-5_38.

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9

Wang, Jenshi B., Charng-Ching Yeh, and Han-Chang Gao. "A New Carbon Nanotube-Supported Pt–Ru Anodic Catalyst by Reverse Microemulsion for Direct Methanol Electro-oxidation." In Progress in Exergy, Energy, and the Environment. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04681-5_89.

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10

Kubota, Jun. "Ammonia Synthesis from Nitrogen and Water Using an Electrochemical Hydrogen-Membrane Reactor, Ru Catalyst, and Phosphate Electrolytes." In CO2 Free Ammonia as an Energy Carrier. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4767-4_22.

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Тези доповідей конференцій з теми "Catalyst Ru"

1

Markova, Mariia, Antonina Stepacheva, Vladimir Molchanov, Galina Demidenko, and Mikhail Sulman. "FISCHER-TROPSCH SYNTHESIS OVER POLYMER SUPPORTED PROMOTED IRON CATALYSTS." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/4.1/s17.12.

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Анотація:

In recent decades, the interest of researchers has focused on the development of methods for obtaining alternative energy sources. Fischer-Tropsch synthesis is one of the methods for obtaining a wide range of hydrocarbons and their derivatives. Ru, Ni, Fe and Co are the widely used catalytically active metals in FTS. To increase the activity of the catalyst, as well as increase the yield of target products, promoters are introduced into catalytic systems. In FTS, oxides of alkaline and rare earth metals, oxides of lanthanides and actinides, and noble metals are used as modifiers. In this work,

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2

Manaenkov, Oleg, Olga Kislitsa, Antonina Stepacheva, Linda Nikoshvili, and Valentina Matveeva. "OPTIMIZATION OF PROCESS CONDITIONS FOR THE CATALYTIC CONVERSION OF MICROCRYSTALLINE CELLULOSE INTO SUGAR ALCOHOLS." In 24th SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/4.1/s17.21.

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The scale of annual reproduction of cellulose-containing biomass in nature allows us to draw an unambiguous conclusion that cellulose is the only source of raw materials for the chemical and fuel industries, representing a real alternative to fossil resources and, first of all, oil. Cellulose is the main component of plant biomass. According to some estimates, almost half of the organic carbon in the biosphere is contained in cellulose. Hydrolytic hydrogenation is a special case of carbohydrate hydrogenation. With regard to cellulose, the essence of the process is to combine the processes of i

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3

Avilez, Leonardo A. C., Antonio E. Bresciani, Claudio A. O. Nascimento, and Rita M. B. Alves. "High-pressure Membrane Reactor for Ammonia Decomposition: Modeling, Simulation and Scale-up using a Python-Aspen Custom Modeler Interface." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.139572.

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One of the current challenges for hydrogen-related technologies is its storage and transportation. The low volumetric density and low boiling point require high-pressure and low-temperature conditions for effective transport and storage. A potential solution to these challenges involves storing hydrogen in chemical compounds that can be easily transported and stored, with hydrogen being released through decomposition processes. Ammonia stands out as a promising hydrogen carrier due to its high hydrogen content (17.8% by weight), relatively mild liquefaction conditions (~10 bar at 25�C), and th

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4

Lobato, J., P. Can˜izares, M. A. Rodrigo, J. J. Linares, and B. Sa´nchez-Rivera. "Testing Different Catalysts for a Vapor-Fed PBI-Based Direct Ethanol Fuel Cell." In ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2009. http://dx.doi.org/10.1115/fuelcell2009-85055.

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With the aim of improving the ethanol oxidation in fuel cells, researchers have developed numerous catalysts to break up the C-C bond. Most of the tests have been carried out at low temperature, using Nafion membrane as electrolyte. The cell performance of the Direct Ethanol Fuel Cells (DEFCs) at low temperature is still far from its industrial application. To improve the DEFC power density, high temperature operation (150–200 °C) has been suggested to promote the complete oxidation of ethanol. Thus, three different catalysts (Pt-Ru (1:1), Pt-Sn (1:1) and Pt-Sn-Ru (1:1:0.3), all of them suppor

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5

Samad, Wan Zurina, Wan Nor Roslam Wan Isahak, Kin Hong Liew, Norazzizi Nordin, Mohd Ambar Yarmo, and Muhammad Rahimi Yusop. "Ru/FTO: Heterogeneous catalyst for glycerol hydrogenolysis." In THE 2014 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2014 Postgraduate Colloquium. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4895207.

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6

Kang, Inyong, and Joongmyeon Bae. "Study on Autothermal Reforming of Diesel." In ASME 2005 3rd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2005. http://dx.doi.org/10.1115/fuelcell2005-74063.

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Diesel is one of the best hydrogen storage systems, which has very high volumetric density [kg H2/m3] (>100) and gravimetric density [%H2] (>15). Several catalysts were selected for diesel reforming. 3 catalysts (Pt on gadolinium doped ceria, Rh and Ru on the same support, Patent for catalyst formulation of Argonne National Laboratory in U.S.A) and 2 commercial catalysts (FCR-HC14 and FCR-HC35, Su¨d-Chemie, Inc.) were used to reform diesel. Pt catalyst showed the best performance. Effects of operating conditions such as temperature, O2/C and H2O/C on ATR (autothermal reforming) were inve

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7

Maeda, Tsuyoshi, Toshio Shinoki, Jiro Funaki, and Katsuya Hirata. "Hydrogen Production by Bio-Fuel Steam Reforming at Low Reaction Temperature." In ASME 2011 Power Conference collocated with JSME ICOPE 2011. ASMEDC, 2011. http://dx.doi.org/10.1115/power2011-55383.

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The authors reveal the dominant chemical reactions and the optimum conditions, supposing the design of ethanol steam-reforming reactors. Specifically speaking, experiments are conducted for Cu/ZnO/Al2O3 catalyst, together with those for Ru/Al2O3 catalyst for reference. Using a household-use-scale reactor with well-controlled temperature distributions, the authors compare experimental results with chemical-equilibrium theories. It has revealed by Shinoki et al. (2011) that the Cu/ZnO/Al2O3 catalyst shows rather high performance with high hydrogen concentration CH2 at low values of reaction temp

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8

Siva, Pamula, and Kuraganti Vasu. "Improved electrochemical activity from Ru doped WS2 nanosheet catalyst." In 66TH DAE SOLID STATE PHYSICS SYMPOSIUM. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0178132.

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9

Hayase, Masanori, and Yosuke Saito. "Novel Miniature DMFC With Monolithic Si Electrodes." In ASME 2009 InterPACK Conference collocated with the ASME 2009 Summer Heat Transfer Conference and the ASME 2009 3rd International Conference on Energy Sustainability. ASMEDC, 2009. http://dx.doi.org/10.1115/interpack2009-89143.

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A through-chip porous Ru-Pt catalyst layer was fabricated on a Si wafer and a novel miniature DMFC (Direct Methanol Fuel Cell) was realized. Recently, we found that porous noble metal layer can be synthesized on Si substrate by immersion plating on a porous Si. In order to realize a DMFC with our novel structure, a porous Ru layer was synthesized on the Si substrate using the immersion plating on the porous Si, then Pt was deposited by galvanic replacement reaction on the porous Ru. The porous Ru-Pt structure showed catalytic activity on methanol oxidization. A through-chip porous Ru-Pt layer

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10

Strasser, Peter. "Combinatorial Development of Ternary Electrocatalysts for Methanol Oxidation." In ASME 2007 2nd Energy Nanotechnology International Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/enic2007-45060.

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We report a combinatorial and high throughput catalyst optimization of ternary Pt-Co-Ru alloy electrocatalysts for the oxidation of methanol in Direct Methanol Fuel Cell anodes. A densely sampled ternary Pt alloy catalyst library was prepared and electrochemically tested in parallel for catalytic activity. A composition-activity map was obtained from which suitable catalyst candidates with improved activity were identified. Then, high throughput methods for evaluating corrosion stability of the alloy catalysts were developed based on structural and compositional criteria. Finally, combining st

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Звіти організацій з теми "Catalyst Ru"

1

Gu, Tianbao, Samuel Simon Araya, and Vincenzo Liso. CFD Modeling of NH3 Synthesis on Ru-Based Catalyst for Hydrogen Storage and Transport. Aalborg University, 2024. https://doi.org/10.54337/aau772652211.

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Hydrogen is often considered as a promising alternative to fossil fuels, however its low boiling point and diffusivity cause a huge challenge for storage and transport. Therefore an alternative fuel like ammonia, containing 17 wt.% hydrogen with a higher boiling point, seems a very promising solution for hydrogen storage and transport. In this paper, ammonia synthesis via the most widely used Haber-Bosch process has been investigated. A computational fluid dynamics (CFD) model is developed for a lab-scale reactor, incorporating the modified Temkin kinetic model describing the complex catalytic

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2

Arico, A. S., P. Creti, and R. Mantegna. Analysis of the electrochemical characteristics of a direct methanol fuel cell based on a Pt-Ru/C anode catalyst. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/460322.

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3

Miranda, R. Mechanism of hydrodenitrogenation preparation of supported Ru catalysts. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/6770589.

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4

Kharchenko, Nadezhda, Vera Pakharukova, Anna Gorlova, et al. Structural analysis of Ru/Ce1-xZrxO2 catalysts for the carbon dioxide methanation. Peeref, 2023. http://dx.doi.org/10.54985/peeref.2307p9320933.

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5

Krishna, K. R. Isotopic tracer studies of Fischer-Tropsch Synthesis over Ru/TiO sub 2 catalysts. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5128268.

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6

Krishna, Kamala Raghunathan. Isotopic tracer studies of Fischer-Tropsch Synthesis over Ru/TiO₂ catalysts. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10159366.

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7

Uner, Denis Ozbay. Interactions of hydrogen with alkali promoted Ru/SiO₂ catalysts: A proton NMR study. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10161807.

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8

Miranda, R. Mechanism of hydrodenitrogenation preparation of supported Ru catalysts. Twelfth quarter report, July 1--August 31, 1992. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10114267.

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