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Zhang Y, Zhang P, Xiong J, Li Y, Ma Y, Zhang S, Zhao Z, Liu J, Wei Y. Synergistic Effect of Pt and Dual Ni/Co Cations in Hydrotalcite-Derived Pt/Ni 1.5Co 0.5AlO Catalysts for Promoting Soot Combustion. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:623. [PMID: 36838991 PMCID: PMC9965507 DOI: 10.3390/nano13040623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/25/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
In this article, the catalysts of hydrotalcite-derived Ni1.5Co0.5AlO nanosheet-supported highly dispersed Pt nanoparticles (Ptn/Ni1.5Co0.5AlO, where n% is the weigh percentage of the Pt element in the catalysts) were elaborately fabricated by the gas-bubble-assisted membrane--reduction method. The specific porous structure formed by the stack of hydrotalcite-derived Ni1.5Co0.5AlO nanosheets can increase the transfer mass efficiency of the reactants (O2, NO, and soot) and the strong Pt-Ni1.5Co0.5AlO interaction can weaken the Ni/Co-O bond for promoting the mobility of lattice oxygen and the formation of surface-oxygen vacancies. The Ptn/Ni1.5Co0.5AlO catalysts exhibited excellent catalytic activity and stability during diesel soot combustion under the loose contact mode between soot particles and catalysts. Among all the catalysts, the Pt2/Ni1.5Co0.5AlO catalyst showed the highest catalytic activities for soot combustion (T50 = 350 °C, TOF = 6.63 × 10-3 s-1). Based on the characterization results, the catalytic mechanism for soot combustion is proposed: the synergistic effect of Pt and dual Ni/Co cations in the Pt/Ni1.5Co0.5AlO catalysts can promote the vital step of catalyzing NO oxidation to NO2 in the NO-assisted soot oxidation mechanism. This insight into the synergistic effect of Pt and dual Ni/Co cations for soot combustion provides new strategies for reducing the amounts of noble metals in high-efficient catalysts.
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Affiliation(s)
- Yilin Zhang
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
| | - Peng Zhang
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
| | - Jing Xiong
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
- Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing 102249, China
| | - Yuanfeng Li
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
| | - Yaxiao Ma
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
| | - Sicheng Zhang
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
| | - Zhen Zhao
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
| | - Jian Liu
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
| | - Yuechang Wei
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing 102249, China
- Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing 102249, China
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Ag, Co3O4, Ag–Co3O4, and Ag/Co3O4 Nanoparticles Decorated Mesoporous Natural Phosphate: Effect of Metal Synergy and Preparation Method on the Catalytic Reduction Reaction. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02262-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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High Active Co/Mg1-xCex3+O Catalyst: Effects of Metal-Support Promoter Interactions on CO2 Reforming of CH4 Reaction. BULLETIN OF CHEMICAL REACTION ENGINEERING & CATALYSIS 2021. [DOI: 10.9767/bcrec.16.1.9969.97-110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Co/Mg1−XCe3+XO (x = 0, 0.03, 0.07, 0.15; 1 wt% cobalt each) catalysts for the dry reforming of methane (DRM) reaction were prepared using the co-precipitation method with K2CO3 as precipitant. Characterization of the catalysts was achieved by X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), X-ray photoelectron spectroscopy (XPS), temperature programmed reduction (H2-TPR), Brunauer–Emmett–Teller (BET), transmission electron microscopy (TEM), and thermal gravimetric analysis (TGA). The role of several reactant and catalyst concentrations, and reaction temperatures (700–900 °C) on the catalytic performance of the DRM reaction was measured in a tubular fixed-bed reactor under atmospheric pressure at various CH4/CO2 concentration ratios (1:1 to 2:1). Using X-ray diffraction, a surface area of 19.2 m2.g−1 was exhibited by the Co/Mg0.85Ce3+0.15O catalyst and MgO phase (average crystallite size of 61.4 nm) was detected on the surface of the catalyst. H2 temperature programmed reaction revealed a reduction of CoO particles to metallic Co0 phase. The catalytic stability of the Co/Mg0.85Ce3+0.15O catalyst was achieved for 200 h on-stream at 900 °C for the 1:1 CH4:CO2 ratio with an H2/CO ratio of 1.0 and a CH4, CO2 conversions of 75% and 86%, respectively. In the present study, the conversion of CH4 was improved (75%–84%) when conducting the experiment at a lower flow of oxygen (1.25%). Finally, the deposition of carbon on the spent catalysts was analyzed using TEM and Temperature programmed oxidation-mass spectroscopy (TPO-MS) following 200 h under an oxygen stream. Better anti-coking activity of the reduced catalyst was observed by both, TEM, and TPO-MS analysis. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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Enhancement of CO2 Reforming of CH4 Reaction Using Ni,Pd,Pt/Mg1−xCex4+O and Ni/Mg1−xCex4+O Catalysts. Catalysts 2020. [DOI: 10.3390/catal10111240] [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
Catalysts Ni/Mg1−xCex4+O and Ni,Pd,Pt/Mg1−xCex4+O were developed using the co-precipitation–impregnation methods. Catalyst characterization took place using XRD, H2-TPR, XRF, XPS, Brunauer–Emmett–Teller (BET), TGA TEM, and FE-SEM. Testing the catalysts for the dry reforming of CH4 took place at temperatures of 700–900 °C. Findings from this study revealed a higher CH4 and CO2 conversion using the tri-metallic Ni,Pd,Pt/Mg1−xCex4+O catalyst in comparison with Ni monometallic systems in the whole temperature ranges. The catalyst Ni,Pd,Pt/Mg0.85Ce4+0.15O also reported an elevated activity level (CH4; 78%, and CO2; 90%) and an outstanding stability. Carbon deposition on spent catalysts was analyzed using TEM and Temperature programmed oxidation-mass spectroscopy (TPO-MS) following 200 h under an oxygen stream. The TEM and TPO-MS analysis results indicated a better anti-coking activity of the reduced catalyst along with a minimal concentration of platinum and palladium metals.
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Effect of La2O3 as a Promoter on the Pt,Pd,Ni/MgO Catalyst in Dry Reforming of Methane Reaction. Catalysts 2020. [DOI: 10.3390/catal10070750] [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
Pt,Pd,Ni/MgO, Pt,Pd,Ni/Mg0.97La3+0.03O, Pt,Pd,Ni/Mg0.93La3+0.07O, and Pt,Pd,Ni/Mg0.85La3+0.15O (1% of each of the Ni, Pd, and Pt) catalysts were prepared by a surfactant-assisted co-precipitation method. Samples were characterized by the XRD, XPS, XRF, FT-IR, H2-TPR, TEM, the Brunauer–Emmett–Teller (BET) method, and TGA and were tested for the dry reforming of methane (DRM). TEM and thermal gravimetric analysis (TGA) methods were used to analyze the carbon deposition on spent catalysts after 200 h at 900 °C. At a temperature of 900 °C and a 1:1 CH4:CO2 ratio, the tri-metallic Pt,Pd,Ni/Mg0.85La3+0.15O catalyst with a lanthanum promoter showed a higher conversion of CH4 (85.01%) and CO2 (98.97%) compared to the Ni,Pd,Pt/MgO catalysts in the whole temperature range. The selectivity of H2/CO decreased in the following order: Pt,Pd,Ni/Mg0.85La3+0.15O > Pt,Pd,Ni/Mg0.93La3+0.07O > Pt,Pd,Ni/Mg0.97La3+0.03O > Ni,Pd,Pt/MgO. The results indicated that among the catalysts, the Pt,Pd,Ni/Mg0.85La23+0.15O catalyst exhibited the highest activity, making it the most suitable for the dry reforming of methane reaction.
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Selective Hydrogenation of 3-Nitrostyrene over a Co-promoted Pt Catalyst Supported on P-containing Activated Charcoal. Catalysts 2019. [DOI: 10.3390/catal9050428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A series of Co-modified Pt catalysts supported on P-containing activated charcoal were studied for the selective hydrogenation of 3-nitrostyrene (NS) to 3-aminostyrene (AS). The addition of Co decreased the rate of hydrogenation but enhanced the selectivity to AS, being 92% at nearly 100% conversion over an optimized catalyst. The high AS selectivity should result from the configuration of NS adsorption on the catalyst, which occurs preferentially with its -NO2 group on the Pt–POx interface layer over the surface of supported Pt particles. The formation of such a Pt–POx area is promoted by the Co additive.
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Roumila Y, Abdmeziem K, Meziani D, Trari M. Physical and photo-electrochemical characterization of natural phosphate material. Application to basic dyes photodegradation. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3250-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Al-Doghachi FAJ, Taufiq-Yap YH. CO2
Reforming of Methane over Ni/MgO Catalysts Promoted with Zr and La Oxides. ChemistrySelect 2018. [DOI: 10.1002/slct.201701883] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Yun Hin Taufiq-Yap
- Department of Chemistry, Faculty of Science; University Putra Malaysia; 43400 UPM Serdang, Selangor Malaysia
- Catalysis Science and Technology Research Centre, Faculty of Science; University Putra Malaysia; 43400, UPM Serdang, Selangor Malaysia
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Al-Doghachi FAJ, Islam A, Zainal Z, Saiman MI, Embong Z, Taufiq-Yap YH. High Coke-Resistance Pt/Mg1-xNixO Catalyst for Dry Reforming of Methane. PLoS One 2016; 11:e0145862. [PMID: 26745623 PMCID: PMC4706417 DOI: 10.1371/journal.pone.0145862] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 12/09/2015] [Indexed: 11/21/2022] Open
Abstract
A highly active and stable nano structured Pt/Mg1-xNixO catalysts was developed by a simple co-precipitation method. The obtained Pt/Mg1-xNixO catalyst exhibited cubic structure nanocatalyst with a size of 50–80 nm and realized CH4 and CO2 conversions as high as 98% at 900°C with excellent stability in the dry reforming of methane. The characterization of catalyst was performed using various kinds of analytical techniques including XRD, BET, XRF, TPR-H2, TGA, TEM, FESEM, FT-IR, and XPS analyses. Characterization of spent catalyst further confirms that Pt/Mg1-xNixO catalyst has high coke-resistance for dry reforming. Thus, the catalyst demonstrated in this study, offers a promising catalyst for resolving the dilemma between dispersion and reducibility of supported metal, as well as activity and stability during high temperature reactions.
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Affiliation(s)
- Faris A. J. Al-Doghachi
- Catalysis Science and Technology Research Centre, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Aminul Islam
- Catalysis Science and Technology Research Centre, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Zulkarnain Zainal
- Catalysis Science and Technology Research Centre, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Mohd Izham Saiman
- Catalysis Science and Technology Research Centre, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
| | - Zaidi Embong
- Department of Science, Faculty of Science, Technology and Human Development, University TunHussienOnn Malaysia (UTHM), 86400, Parit Raja, Batu Pahat, Malaysia
| | - Yun Hin Taufiq-Yap
- Catalysis Science and Technology Research Centre, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
- Department of Chemistry, Faculty of Science, University Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia
- * E-mail:
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Al-Doghachi FAJ, Rashid U, Taufiq-Yap YH. Investigation of Ce(iii) promoter effects on the tri-metallic Pt, Pd, Ni/MgO catalyst in dry-reforming of methane. RSC Adv 2016. [DOI: 10.1039/c5ra25869c] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The DRM reaction on the Pt, Pd, Ni/Mg1−XCeXO catalyst was studied where the methane molecule was activated on the Ni metal to produce hydrogen gas. The role of the other metals like Pt and Pd impregnated on the surface of the catalyst was shown.
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Affiliation(s)
- Faris A. J. Al-Doghachi
- Catalysis Science and Technology Research Centre
- Faculty of Science
- University Putra Malaysia
- Serdang
- Malaysia
| | - Umer Rashid
- Institute of Advanced Technology
- University Putra Malaysia
- Serdang
- Malaysia
| | - Yun Hin Taufiq-Yap
- Catalysis Science and Technology Research Centre
- Faculty of Science
- University Putra Malaysia
- Serdang
- Malaysia
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Al-Doghachi FAJ, Rashid U, Zainal Z, Saiman MI, Taufiq Yap YH. Influence of Ce2O3 and CeO2 promoters on Pd/MgO catalysts in the dry-reforming of methane. RSC Adv 2015. [DOI: 10.1039/c5ra15825g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this study, the conversion of methane and CO2 to synthesis gas using dry reforming over Pd/MgO catalysts using different concentrations of Ce3+ and Ce4+ was investigated.
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Affiliation(s)
- Faris A. J. Al-Doghachi
- Catalysis Science and Technology Research Centre
- Faculty of Science
- Universiti Putra Malaysia, UPM
- Serdang
- Malaysia
| | - Umer Rashid
- Institute of Advanced Technology
- Universiti Putra Malaysia, UPM
- 43400 Serdang
- Malaysia
| | - Zulkarnain Zainal
- Catalysis Science and Technology Research Centre
- Faculty of Science
- Universiti Putra Malaysia, UPM
- Serdang
- Malaysia
| | - Mohd Izham Saiman
- Catalysis Science and Technology Research Centre
- Faculty of Science
- Universiti Putra Malaysia, UPM
- Serdang
- Malaysia
| | - Yun Hin Taufiq Yap
- Catalysis Science and Technology Research Centre
- Faculty of Science
- Universiti Putra Malaysia, UPM
- Serdang
- Malaysia
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