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Sofian M, Nasim F, Ali H, Nadeem MA. Pronounced effect of yttrium oxide on the activity of Pd/rGO electrocatalyst for formic acid oxidation reaction. RSC Adv 2023; 13:14306-14316. [PMID: 37197672 PMCID: PMC10184137 DOI: 10.1039/d3ra01929b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 04/29/2023] [Indexed: 05/19/2023] Open
Abstract
A highly efficient and stable electrocatalyst comprised of yttrium oxide (Y2O3) and palladium nanoparticles has been synthesized via a sodium borohydride reduction approach. The molar ratio of Pd and Y was varied to fabricate various electrocatalysts and the oxidation reaction of formic acid was checked. X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and X-ray powder diffraction (XRD) are used to characterize the synthesized catalysts. Among the synthesized catalysts (PdyYx/rGO), the optimized catalyst i.e., Pd6Y4/rGO exhibits the highest current density (106 mA cm-2) and lowest onset potential compared to Pd/rGO (28.1 mA cm-2) and benchmark Pd/C (21.7 mA cm-2). The addition of Y2O3 to the rGO surface results in electrochemically active sites due to the improved geometric structure and bifunctional components. The electrochemically active surface area 119.4 m2 g-1 is calculated for Pd6Y4/rGO, which is ∼1.108, ∼1.24, ∼1.47 and 1.55 times larger than Pd4Y6/rGO, Pd2Y8/rGO, Pd/C and Pd/rGO, respectively. The redesigned Pd structures on Y2O3-promoted rGO give exceptional stability and enhanced resistance to CO poisoning. The outstanding electrocatalytic performance of the Pd6Y4/rGO electrocatalyst is ascribed to uniform dispersion of small size palladium nanoparticles which is possibly due to the presence of yttrium oxide.
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Affiliation(s)
- Muhammad Sofian
- Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Fatima Nasim
- Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Hassan Ali
- Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
| | - Muhammad Arif Nadeem
- Catalysis and Nanomaterials Lab 27, Department of Chemistry, Quaid-i-Azam University Islamabad 45320 Pakistan
- Pakistan Academy of Sciences 3-Constitution Avenue Sector G-5/2 Islamabad Pakistan
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Ye L, Mahadi AH, Saengruengrit C, Qu J, Xu F, Fairclough SM, Young N, Ho PL, Shan J, Nguyen L, Tao FF, Tedsree K, Tsang SCE. Ceria Nanocrystals Supporting Pd for Formic Acid Electrocatalytic Oxidation: Prominent Polar Surface Metal Support Interactions. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00421] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lin Ye
- The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K
| | - A. Hanif Mahadi
- The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K
| | - Chalathan Saengruengrit
- Department of Chemistry, Faculty of Science, Burapha University, Bangsaen, Chonburi 20131, Thailand
| | - Jin Qu
- The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K
| | - Feng Xu
- The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K
| | - Simon M. Fairclough
- The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K
| | - Neil Young
- Department of Materials, University of Oxford, Oxford OX1 3PH, U.K
| | - Ping-Luen Ho
- The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K
| | - Junjun Shan
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Luan Nguyen
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Franklin F. Tao
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Karaked Tedsree
- Department of Chemistry, Faculty of Science, Burapha University, Bangsaen, Chonburi 20131, Thailand
| | - S. C. Edman Tsang
- The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K
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Assaud L, Monyoncho E, Pitzschel K, Allagui A, Petit M, Hanbücken M, Baranova EA, Santinacci L. 3D-nanoarchitectured Pd/Ni catalysts prepared by atomic layer deposition for the electrooxidation of formic acid. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:162-72. [PMID: 24605281 PMCID: PMC3943891 DOI: 10.3762/bjnano.5.16] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 01/14/2014] [Indexed: 05/27/2023]
Abstract
Three-dimensionally (3D) nanoarchitectured palladium/nickel (Pd/Ni) catalysts, which were prepared by atomic layer deposition (ALD) on high-aspect-ratio nanoporous alumina templates are investigated with regard to the electrooxidation of formic acid in an acidic medium (0.5 M H2SO4). Both deposition processes, Ni and Pd, with various mass content ratios have been continuously monitored by using a quartz crystal microbalance. The morphology of the Pd/Ni systems has been studied by electron microscopy and shows a homogeneous deposition of granularly structured Pd onto the Ni substrate. X-ray diffraction analysis performed on Ni and NiO substrates revealed an amorphous structure, while the Pd coating crystallized into a fcc lattice with a preferential orientation along the [220]-direction. Surface chemistry analysis by X-ray photoelectron spectroscopy showed both metallic and oxide contributions for the Ni and Pd deposits. Cyclic voltammetry of the Pd/Ni nanocatalysts revealed that the electrooxidation of HCOOH proceeds through the direct dehydrogenation mechanism with the formation of active intermediates. High catalytic activities are measured for low masses of Pd coatings that were generated by a low number of ALD cycles, probably because of the cluster size effect, electronic interactions between Pd and Ni, or diffusion effects.
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Affiliation(s)
- Loïc Assaud
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
| | - Evans Monyoncho
- Department of Chemical and Biological Engineering, Center for Catalysis Research and Innovation, University of Ottawa, 161 Louis-Pasteur St., Ottawa, ON, K1N 6N5, Canada
| | - Kristina Pitzschel
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
| | - Anis Allagui
- Department of Chemical and Biological Engineering, Center for Catalysis Research and Innovation, University of Ottawa, 161 Louis-Pasteur St., Ottawa, ON, K1N 6N5, Canada
| | - Matthieu Petit
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
| | - Margrit Hanbücken
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
| | - Elena A Baranova
- Department of Chemical and Biological Engineering, Center for Catalysis Research and Innovation, University of Ottawa, 161 Louis-Pasteur St., Ottawa, ON, K1N 6N5, Canada
| | - Lionel Santinacci
- Aix-Marseille Université, CNRS, CINaM UMR 7325, 13288, Marseille, France
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