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The Effect of Shape-Controlled Pt and Pd Nanoparticles on Selective Catalytic Hydrodechlorination of Trichloroethylene. Catalysts 2020. [DOI: 10.3390/catal10111314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Tailoring the shape of nanoscale materials enables obtaining morphology-controlled surfaces exhibiting specific interactions with reactants during catalytic reactions. The specifics of nanoparticle surfaces control the catalytic performance, i.e., activity and selectivity. In this study, shape-controlled Platinum (Pt) and Palladium (Pd) nanoparticles with distinct morphology were produced, i.e., cubes and cuboctahedra for Pt and spheres and polyhedra/multiple-twins for Pd, with (100), (111 + 100), curved/stepped and (111) facets, respectively. These particles with well-tuned surfaces were subsequently deposited on a Zirconium oxide (ZrO2) support. The morphological characteristics of the particles were determined by high resolution transmission electron microscopy (HR-TEM) and X-ray diffraction (XRD), while their adsorption properties were investigated by Fourier transform infrared spectroscopy (FTIR) of CO adsorbed at room temperature. The effect of the nanoparticle shape and surface structure on the catalytic performance in hydrodechlorination (HDCl) of trichloroethylene (TCE) was examined. The results show that nanoparticles with different surface orientations can be employed to affect selectivity, with polyhedral and multiply-twinned Pd exhibiting the best ethylene selectivity.
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Han W, Kennedy EM, Mackie JC, Dlugogorski BZ. Effect of Methanol on the Gas-Phase Reaction of Trifluoromethane with Methane. Ind Eng Chem Res 2010. [DOI: 10.1021/ie100349x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wenfeng Han
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Eric M. Kennedy
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - John C. Mackie
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Bogdan Z. Dlugogorski
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
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Grams J, Góralski J, Szczepaniak B. Time-of-flight secondary ion-mass spectrometry as a new technique for the investigations of the deactivation process of hydrodechlorination catalysts. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2007. [DOI: 10.1134/s0036024407090336] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yu H, Mackie JC, Kennedy EM, Dlugogorski BZ. Experimental and Quantum Chemical Study of the Reaction CF2 + CH3 ↔ CF2CH3 → CH2CF2 + H: A Key Mechanism in the Reaction between Methane and Fluorocarbons. Ind Eng Chem Res 2006. [DOI: 10.1021/ie060221z] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hai Yu
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - John C. Mackie
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Eric M. Kennedy
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Bogdan Z. Dlugogorski
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
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Yu H, Kennedy EM, Uddin MA, Sakata Y, Dlugogorski BZ. Gas-Phase and Pd-Catalyzed Hydrodehalogenation of CBrClF2, CCl2F2, CHClF2, and CH2F2. Ind Eng Chem Res 2005. [DOI: 10.1021/ie049228b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hai Yu
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia, School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia, and Department of Applied Chemistry, Okayama University, Tsushima Naka, Okayama 700-8530, Japan
| | - Eric M. Kennedy
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia, School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia, and Department of Applied Chemistry, Okayama University, Tsushima Naka, Okayama 700-8530, Japan
| | - Md. Azhar Uddin
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia, School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia, and Department of Applied Chemistry, Okayama University, Tsushima Naka, Okayama 700-8530, Japan
| | - Yusaku Sakata
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia, School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia, and Department of Applied Chemistry, Okayama University, Tsushima Naka, Okayama 700-8530, Japan
| | - Bogdan Z. Dlugogorski
- Process Safety and Environment Protection Research Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia, School of Chemical Engineering and Industrial Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia, and Department of Applied Chemistry, Okayama University, Tsushima Naka, Okayama 700-8530, Japan
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