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Effect of Zinc on the Structure and Activity of the Cobalt Oxide Catalysts for NO Decomposition. Catalysts 2022. [DOI: 10.3390/catal13010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Co4−iZniMnAlOx mixed oxides (i = 0, 0.5 and 1) were prepared by coprecipitation, subsequently modified with potassium (2 or 4 wt.% K), and investigated for direct catalytic NO decomposition, one of the most attractive and challenging NOx abatement processes. The catalysts were characterised by atomic absorption spectroscopy, powder X-ray diffraction, Raman and infrared spectroscopy, temperature-programmed reduction by hydrogen, the temperature-programmed desorption of CO2 and NO, X-ray photoelectron spectroscopy, scanning electron microscopy, the work function, and N2 physisorption. The partial substitution of cobalt increased the specific surface area, decreased the pore sizes, influenced the surface composition, and obtained acid-base properties as a result of the higher availability of medium and strong basic sites. No visible changes in the morphology, crystallite size, and work function were observed upon the cobalt substitution. The conversion of NO increased after the Co substitution, however, the increase in the amount of zinc did not affect the catalytic activity, whereas a higher amount of potassium caused a decrease in the NO conversion. The results obtained, which were predominantly the acid-base characteristics of the catalyst, are in direct correlation with the proposed NO decomposition reaction mechanisms with NOx− as the main reaction intermediates.
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Contrasting Effects of Potassium Addition on M3O4 (M = Co, Fe, and Mn) Oxides during Direct NO Decomposition Catalysis. Catalysts 2020. [DOI: 10.3390/catal10050561] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
While the promotional effect of potassium on Co3O4 NO decomposition catalytic performance is established in the literature, it remains unknown if K is also a promoter of NO decomposition over similar simple first-row transition metal spinels like Mn3O4 and Fe3O4. Thus, potassium was impregnated (0.9–3.0 wt.%) on Co3O4, Mn3O4, and Fe3O4 and evaluated for NO decomposition reactivity from 400–650 °C. The activity of Co3O4 was strongly dependent on the amount of potassium present, with a maximum of ~0.18 [(µmol NO to N2) g−1 s−1] at 0.9 wt.% K. Without potassium, Fe3O4 exhibited deactivation with time-on-stream due to a non-catalytic chemical reaction with NO forming α-Fe2O3 (hematite), which is inactive for NO decomposition. Potassium addition led to some stabilization of Fe3O4, however, γ-Fe2O3 (maghemite) and a potassium–iron mixed oxide were also formed, and catalytic activity was only observed at 650 °C and was ~50× lower than 0.9 wt.% K on Co3O4. The addition of K to Mn3O4 led to formation of potassium–manganese mixed oxide phases, which became more prevalent after reaction and were nearly inactive for NO decomposition. Characterization of fresh and spent catalysts by scanning electron microscopy and energy dispersive X-ray analysis (SEM/EDX), in situ NO adsorption Fourier transform infrared spectroscopy, temperature programmed desorption techniques, X-ray powder diffraction (XRD), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) revealed the unique potassium promotion of Co3O4 for NO decomposition arises not only from modification of the interaction of the catalyst surface with NOx (increased potassium-nitrite formation), but also from an improved ability to desorb oxygen as product O2 while maintaining the integrity and purity of the spinel phase.
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Xu W, Wang Q, Peng K, Chen F, Han X, Wang X, Zhou J. Development of MgCo2O4–BaCO3 composites as microwave catalysts for the highly effective direct decomposition of NO under excess O2 at a low temperature. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00797k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic NO decomposition reaction is a hot research topic.
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Affiliation(s)
- Wentao Xu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Qige Wang
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Kang Peng
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Fengtao Chen
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Xue Han
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
| | - Xianyou Wang
- National Base for International Science and Technology Cooperation
- School of Chemistry
- Xiangtan University
- Xiangtan
- 411105 China
| | - Jicheng Zhou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P.R.China
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4
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On the stability of alkali metal promoters in Co mixed oxides during direct NO catalytic decomposition. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.molcata.2016.11.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Reddy GK, Ling C, Peck TC, Jia H. Understanding the chemical state of palladium during the direct NO decomposition – influence of pretreatment environment and reaction temperature. RSC Adv 2017. [DOI: 10.1039/c7ra00836h] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The mechanism of direct NO decomposition is different than three-way catalysis and depends on temperature and pretreatment environment over PdO/SiO2.
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Affiliation(s)
- Gunugunuri K. Reddy
- Material Research Department
- Toyota Research Institute of North America
- Ann arbor MI – 48105
- USA
| | - Chen Ling
- Material Research Department
- Toyota Research Institute of North America
- Ann arbor MI – 48105
- USA
| | - Torin C. Peck
- Material Research Department
- Toyota Research Institute of North America
- Ann arbor MI – 48105
- USA
| | - Hongfei Jia
- Material Research Department
- Toyota Research Institute of North America
- Ann arbor MI – 48105
- USA
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Xu W, Cai J, Zhou J, Ou Y, Long W, You Z, Luo Y. Highly Effective Direct Decomposition of Nitric Oxide by Microwave Catalysis over BaMeO3
(Me=Mn, Co, Fe) Mixed Oxides at Low Temperature under Excess Oxygen. ChemCatChem 2015. [DOI: 10.1002/cctc.201500966] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wentao Xu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Jinjun Cai
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Jicheng Zhou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Yingpiao Ou
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Wei Long
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Zhimin You
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
| | - Yushang Luo
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province; School of Chemical Engineering; Xiangtan University; Xiangtan 411105 P.R. China
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Xu W, Zhou J, Ou Y, Luo Y, You Z. Microwave selective effect: a new approach towards oxygen inhibition removal for highly-effective NO decomposition by microwave catalysis over BaMn(x)Mg(1-x)O3 mixed oxides at low temperature under excess oxygen. Chem Commun (Camb) 2015; 51:4073-6. [PMID: 25660765 DOI: 10.1039/c4cc10288f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A significant microwave selective effect on oxygen inhibition removal was found for NO decomposition through microwave catalysis over BaMn(x)Mg(1-x)O3 catalysts. Especially, the NO conversion and N2 selectivity were up to 99.8% and 99.9%, respectively for the BaMn(0.9)Mg(0.1)O3 catalyst even with the coexistence of 10% oxygen and low temperature of 250 °C.
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Affiliation(s)
- Wentao Xu
- Key Laboratory of Green Catalysis and Chemical Reaction Engineering of Hunan Province, School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China.
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Andrade-Martínez J, Ortega-Zarzosa G, Gómez-Cortés A, Rodríguez-González V. N2O catalytic reduction over different porous SiO2 materials functionalized with copper. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.01.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Xu W, Zhou J, You Z, Luo Y, Ou Y. Microwave Irradiation Coupled with Physically Mixed MeOx(Me=Mn, Ni) and Cu-ZSM-5 Catalysts for the Direct Decomposition of Nitric Oxide under Excess Oxygen. ChemCatChem 2014. [DOI: 10.1002/cctc.201402852] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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10
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Cui J, Gao L, Yan S, Zhang W, Li Y, Gao L. The Direct Decomposition of Nitric Oxide Over Fe/CNOs (CNOs: Carbon Nano Onions). ACTA ACUST UNITED AC 2014. [DOI: 10.1080/15533174.2013.818031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jiali Cui
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
| | - Lizhen Gao
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
- School of Mechanical and Chemical Engineering, University of Western Australia, Crawley, Australia
| | - Shaohui Yan
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
| | - Weike Zhang
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
| | - Yuzhen Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
| | - Lili Gao
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, P. R. China
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Damodara D, Arundhathi R, Ramesh Babu TV, Legan MK, Kumpaty HJ, Likhar PR. Polymethylhydrosiloxane derived palladium nanoparticles for chemo- and regioselective hydrogenation of aliphatic and aromatic nitro compounds in water. RSC Adv 2014. [DOI: 10.1039/c4ra01333f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Chemo- and regioselective hydrogenation of a wide range of nitro compounds has been achieved with polysiloxane-stabilised ''Pd'' nanoparticles and PMHS in water.
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Affiliation(s)
- Dandu Damodara
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- Indian Institute of Chemical Technology
- Hyderabad-500607, India
| | - Racha Arundhathi
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- Indian Institute of Chemical Technology
- Hyderabad-500607, India
| | - T. Venkata Ramesh Babu
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- Indian Institute of Chemical Technology
- Hyderabad-500607, India
| | | | | | - Pravin R. Likhar
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- Indian Institute of Chemical Technology
- Hyderabad-500607, India
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Castegnaro MV, Kilian AS, Baibich IM, Alves MCM, Morais J. On the reactivity of carbon supported Pd nanoparticles during NO reduction: unraveling a metal-support redox interaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:7125-33. [PMID: 23683147 DOI: 10.1021/la401460c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Pd nanoparticles (NPs) were successfully obtained by the reduction of PdCl2 with L-ascorbic acid, whose morphology was revealed by HRTEM to be a worm-like system, formed by linked crystallite clusters with an average short-axis diameter of 5.42 nm. In situ UV-vis absorption measurements were used to monitor their formation, while XPS and XRD characterization confirmed the NPs' metallic state. A straightforward way to support the obtained Pd NPs on activated carbon (AC) was used to prepare a catalyst for NO decomposition reaction. The Pd/AC catalysts proved to be highly active in the temperature range of 323 to 673 K, and a redox mechanism is proposed, where the catalyst's active sites are oxidized by NO and reduced by carbon, emitting CO2 and enhancing their capacity to absorb and dissociate NO.
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Affiliation(s)
- Marcus V Castegnaro
- Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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The Effect of Tin–Support Interaction on Catalytic Stability over Pt–Sn/xAl–SBA-15 Catalysts for Propane Dehydrogenation. Catal Letters 2012. [DOI: 10.1007/s10562-012-0837-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Bassil J, AlBarazi A, Da Costa P, Boutros M. Catalytic combustion of methane over mesoporous silica supported palladium. Catal Today 2011. [DOI: 10.1016/j.cattod.2011.05.026] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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16
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Cónsul J, Baibich I, Alves MM. XANES investigation of the enhanced chemical stability of Pd in supported Pd–Mo catalysts. CATAL COMMUN 2011. [DOI: 10.1016/j.catcom.2011.05.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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17
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Makowska-Janusik M, Kassiba A, Errien N, Mehdi A. Mesoporous Silica Functionalized by Cyclam–Metal Groups: Spectroscopic Studies and Numerical Modeling. J Inorg Organomet Polym Mater 2010. [DOI: 10.1007/s10904-010-9400-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Ravat V, Mantri DB, Selvam P, Aghalayam P. Platinum group metals substituted MCM-41 molecular sieves: Synthesis, characterization and application as novel catalysts for the reduction of NO by CO. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcata.2009.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Laskowski L, Kassiba A, Makowska-Janusik M, Mehdi A, Gibaud A, Errien N, Swiatek J. Magnetic behaviour of nickel-cyclam complexes in mesoporous silica: EPR investigations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2009; 21:076004. [PMID: 21817350 DOI: 10.1088/0953-8984/21/7/076004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Electron paramagnetic resonance (EPR) investigations are carried out on mesoporous silica (SBA15) functionalized by Ni-cyclam complexes (1,4,8,11-tetraazacyclotetradecane groups chelating nickel ions). The magnetic behaviour of nickel-cyclam groups, their mutual interactions and dispersions in the mesoporous silica are compared with respect to the doping rates and the synthesis procedures. The spin-spin interactions and the relaxation processes were clarified from the thermal evolution in the temperature range (4 K, 300 K) of the paramagnetic spin susceptibilities and EPR line widths. Thus, the relaxation mechanisms seem marked by the Jahn-Teller effect on the nickel ions mediated by exchange interactions between nearest spins. Isolated Ni-cyclam molecules are involved in some samples while others show the formation of clusters where phonon-assisted one-dimensional (1D) ferromagnetic ordering occurs below 45 K. The performed experiments point out the efficiency of the EPR technique to probe the degree of functionalization of mesoporous silica by Ni-cyclam molecules and to give valuable feedback to improve the synthesis routes.
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Affiliation(s)
- L Laskowski
- Laboratoire de Physique de l'Etat Condensé LPEC, UMR CNRS no 6087, Université du Maine Avenue Olivier Messiaen 72085, Le Mans CEDEX 9, France. Institut de Recherche en Ingénierie Moléculaire et Matériaux Fonctionnels IRIM2F, FR CNRS no 2575, France. Institute of Physics, Jan Dluogosz University, Aleja Armii Krajowej 13/15, 42-200 Czestochowa, Poland
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da Silveira RS, de Oliveira AM, Pergher SBC, da Silva VT, Baibich IM. Palladium and Molybdenum Mono and Bimetallic Catalysts on Modernite for Direct NO Decomposition Reaction. Catal Letters 2009. [DOI: 10.1007/s10562-008-9806-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Kantam ML, Chakravarti R, Chintareddy VR, Sreedhar B, Bhargava S. Palladium-Catalyzed Heck Coupling-Hydrogenation: Highly Efficient One-Pot Synthesis of Dibenzyls and Alkyl Phenyl Esters. Adv Synth Catal 2008. [DOI: 10.1002/adsc.200800460] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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23
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Huang L, Xu B, Yang L, Fan Y. Propane dehydrogenation over the PtSn catalyst supported on alumina-modified SBA-15. CATAL COMMUN 2008. [DOI: 10.1016/j.catcom.2008.07.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Kantam ML, Chakravarti R, Pal U, Sreedhar B, Bhargava S. Nanocrystalline Magnesium Oxide-Stabilized Palladium(0): An Efficient and Reusable Catalyst for Selective Reduction of Nitro Compounds. Adv Synth Catal 2008. [DOI: 10.1002/adsc.200800018] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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de Oliveira AM, Baibich IM, Machado NRF, Mignoni ML, Pergher SB. Decomposition of nitric oxide on Pd-mordenite. Catal Today 2008. [DOI: 10.1016/j.cattod.2007.12.100] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Cónsul JMD, Peralta CA, Ruiz JA, Pastore HO, Baibich IM. Direct decomposition of nitric oxide on bimetallic catalysts: Effect of metals bonding. Catal Today 2008. [DOI: 10.1016/j.cattod.2007.11.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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de Oliveira AM, Crizel LE, da Silveira RS, Pergher SBC, Baibich IM. NO decomposition on mordenite-supported Pd and Cu catalysts. CATAL COMMUN 2007. [DOI: 10.1016/j.catcom.2006.11.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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