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Fujita S, Baranton S, Coutanceau C, Jerkiewicz G. Electrochemical Behavior and Shape Evolution of Structured Pd Nanoparticles in Alkaline Media─Influence of Electrochemically Absorbed Hydrogen. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15889-15900. [PMID: 37906432 DOI: 10.1021/acs.langmuir.3c01636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
We report on the electrochemical behavior and shape evolution of Pd nanocubes (Pd NCs) and Pd nanooctahedrons (Pd NOs) with an average size of 9.8 and 6.9 nm, respectively, in aqueous alkaline medium in the potential range of the underpotential deposition of H (UPD H) and H absorption. While the Pd NCs and Pd NOs remain stable in the potential region of the UPD H, H absorption and desorption of absorbed H (Habs) induce structural changes to the Pd NPs, as indicated by the results of electrochemical measurements and identical location-transmission electron microscopy (IL-TEM) analyses. Because both Pd NCs and Pd NOs are known to be stable in the potential region of H absorption and Habs desorption in acidic medium and maintain their structure, the irreversible structural changes are attributed to their interfacial interaction with the aqueous alkaline medium. In the alkaline medium, the nanoparticle surface/electrolyte interfacial structure plays an essential role in the mechanism of Habs desorption that is observed at higher potentials than that in the acidic medium. Hydrogen desorption is substantially hindered due to the structure of the water network adjacent to the Pd nanoparticles or the interaction between hydrated cations and adsorbed OH on the nanoparticle surface, resulting in the trapping of a small amount of H (incomplete Habs desorption). It is proposed that H trapping and associated structural strain lead to the deformation of the Pd nanoparticles and the loss of their initial structure.
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Affiliation(s)
- Sho Fujita
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
| | - Stève Baranton
- IC2MP, UMR CNRS 7285, Université de Poitiers, 4 rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Christophe Coutanceau
- IC2MP, UMR CNRS 7285, Université de Poitiers, 4 rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Gregory Jerkiewicz
- Department of Chemistry, Queen's University, 90 Bader Lane, Kingston, Ontario K7L 3N6, Canada
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2
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Chen X, Ojha K, Koper MTM. Subsurface Hydride Formation Leads to Slow Surface Adsorption Processes on a Pd(111) Single-Crystal Electrode in Acidic Electrolytes. JACS AU 2023; 3:2780-2789. [PMID: 37885584 PMCID: PMC10598829 DOI: 10.1021/jacsau.3c00343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 10/28/2023]
Abstract
Palladium is one of the most important catalysts due to its widespread use in heterogeneous catalysis and electrochemistry. However, an understanding of the electrochemical processes and interfacial phenomena at Pd single-crystal electrodes/electrolytes is still scarce. In this work, the electrochemical behavior of the Pd(111) electrode was studied by the combination of cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in different acidic electrolytes, namely, sulfuric acid, perchlorate acid, methane sulfonic acid, and hydrofluoric acid. An analysis of CV profiles shows the strong adsorption of all anions at low electrode potential, partially overlapping with underpotential deposited hydrogen (UPD-H), leading to the appearance of a pair of sharp peaks in what would be considered the "hydrogen region". All anions studied (HSO4-, ClO4-, CH3SO3-, and F-) adsorb specifically and interact with (or effectively block) the surface-adsorbed hydroxyl phase formed on the Pd(111) terrace at higher potentials. Strikingly, the scan rate-dependent results show that the process of anion adsorption and desorption is a kinetically rather slow step. EIS measurements show that the exact mechanism of this slow anion ad/desorption process actually stems from (sub)surface phenomena: the direct hydrogen insertion into Pd lattice (hydrogen subsurface absorption) commences from ca. 0.40 V and leads to the formation of (subsurface) Pd hydrides (PdHx). We argue that the subsurface hydrogen phase significantly alters the work function and thereby the kinetics of the anion adsorption and desorption processes, leading to irreversible peaks in the voltammetry. This precise understanding is important in guiding further fundamental work on Pd single crystals and will be crucial to advancing the eventual design of optimized Pd electrocatalysts.
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Affiliation(s)
- Xiaoting Chen
- School
of Materials Science and Engineering, Beijing
Institute of Technology, Beijing 100081, P.R. China
- Leiden
Institute of Chemistry, Leiden University, PO Box 9502, Leiden 2300 RA, The Netherlands
| | - Kasinath Ojha
- Leiden
Institute of Chemistry, Leiden University, PO Box 9502, Leiden 2300 RA, The Netherlands
| | - Marc T. M. Koper
- Leiden
Institute of Chemistry, Leiden University, PO Box 9502, Leiden 2300 RA, The Netherlands
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3
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Płócienniczak-Bywalska P, Rębiś T, Leda A, Milczarek G. Lignosulfonate-Assisted In Situ Deposition of Palladium Nanoparticles on Carbon Nanotubes for the Electrocatalytic Sensing of Hydrazine. Molecules 2023; 28:7076. [PMID: 37894555 PMCID: PMC10609262 DOI: 10.3390/molecules28207076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
This paper presents a novel modified electrode for an amperometric hydrazine sensor based on multi-walled carbon nanotubes (MWCNTs) modified with lignosulfonate (LS) and decorated with palladium nanoparticles (NPds). The MWCNT/LS/NPd hybrid was characterized by atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). The electrochemical properties of the electrode material were evaluated using cyclic voltammetry and chronoamperometry. The results showed that GC/MWCNT/LS/NPd possesses potent electrocatalytic properties towards the electro-oxidation of hydrazine. The electrode demonstrated exceptional electrocatalytic activity coupled with a considerable sensitivity of 0.166 μA μM-1 cm-2. The response was linear from 3.0 to 100 µM L-1 and 100 to 10,000 µM L-1, and the LOD was quantified to 0.80 µM L-1. The efficacy of the modified electrode as an electrochemical sensor was corroborated in a study of hydrazine determination in water samples.
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Affiliation(s)
| | - Tomasz Rębiś
- Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland;
| | - Amanda Leda
- Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland;
| | - Grzegorz Milczarek
- Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Berdychowo 4, 60-965 Poznań, Poland;
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4
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Chen W, Zhang LL, Wei Z, Zhang MK, Cai J, Chen YX. The electrostatic effect and its role in promoting electrocatalytic reactions by specifically adsorbed anions. Phys Chem Chem Phys 2023; 25:8317-8330. [PMID: 36892566 DOI: 10.1039/d2cp04547h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The adsorption of anions and its impact on electrocatalytic reactions are fundamental topics in electrocatalysis. Previous studies revealed that adsorbed anions display an overall poisoning effect in most cases. However, for a few reactions such as the hydrogen evolution reaction (HER), oxidation of small organic molecules (SOMs), and reduction of CO2 and O2, some specifically adsorbed anions can promote their reaction kinetics under certain conditions. The promotion effect is frequently attributed to the adsorbate induced modification of the nature of the active sites, the change of the adsorption configuration and free energy of the key reactive intermediate which consequently change the activation energy, the pre-exponential factor of the rate determining step etc. In this paper, we will give a mini review of the indispensable role of the classical double layer effect in enhancing the kinetics of electrocatalytic reactions by anion adsorption. The ubiquitous electrostatic interactions change both the potential distribution and the concentration distribution of ionic species across the electric double layer (EDL), which alters the electrochemical driving force and effective concentration of the reactants. The contribution to the overall kinetics is highlighted by taking HER, oxidation of SOMs, reduction of CO2 and O2, as examples.
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Affiliation(s)
- Wei Chen
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China.
| | - Lu-Lu Zhang
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China.
| | - Zhen Wei
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China.
| | - Meng-Ke Zhang
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China.
| | - Jun Cai
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China.
| | - Yan-Xia Chen
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China.
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5
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Wei Z, Yu A, Gisbert-González JM, Cai J, Chen YX, Feliu JM, Herrero E. Mechanism of Formic Acid Oxidation on Bi Modified Pt(111): Implication from the Concentration Effect of Formic Acid and Different Coverages of Bi. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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6
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Facet dependence of electrocatalytic furfural hydrogenation on palladium nanocrystals. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64097-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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7
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Physical and Electrochemical Effect of Bimetallic Pd–Mo Nanoalloys Supported on Vulcan XC-72R Carbon as Cathode Catalysts for Proton Exchange Membrane Fuel Cell. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00787-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Pagliaro MV, Wen C, Sa B, Liu B, Bellini M, Bartoli F, Sahoo S, Singh RK, Alpay SP, Miller HA, Dekel DR. Improving Alkaline Hydrogen Oxidation Activity of Palladium through Interactions with Transition-Metal Oxides. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Maria V. Pagliaro
- Institute of Chemistry of OrganoMetallic Compounds, CNR-ICCOM, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Florence, Italy
| | - Cuilian Wen
- Multiscale Computational Materials Facility, and Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350100, P. R. China
| | - Baisheng Sa
- Multiscale Computational Materials Facility, and Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350100, P. R. China
| | - Baoyu Liu
- Multiscale Computational Materials Facility, and Key Laboratory of Eco-materials Advanced Technology, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350100, P. R. China
| | - Marco Bellini
- Institute of Chemistry of OrganoMetallic Compounds, CNR-ICCOM, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Florence, Italy
| | - Francesco Bartoli
- Institute of Chemistry of OrganoMetallic Compounds, CNR-ICCOM, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Florence, Italy
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, Via Aldo Moro 2, Siena 53100, Italy
| | - Sanjubala Sahoo
- Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Ramesh K. Singh
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel
- The Nancy & Stephen Grand Technion Energy Program, Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - S. Pamir Alpay
- Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Hamish A. Miller
- Institute of Chemistry of OrganoMetallic Compounds, CNR-ICCOM, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Florence, Italy
| | - Dario R. Dekel
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel
- The Nancy & Stephen Grand Technion Energy Program, Technion - Israel Institute of Technology, Haifa 3200003, Israel
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9
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Mastronardi V, Kim J, Veronesi M, Pomili T, Berti F, Udayan G, Brescia R, Diercks JS, Herranz J, Bandiera T, Fichthorn KA, Pompa PP, Moglianetti M. Green chemistry and first-principles theory enhance catalysis: synthesis and 6-fold catalytic activity increase of sub-5 nm Pd and Pt@Pd nanocubes. NANOSCALE 2022; 14:10155-10168. [PMID: 35796244 DOI: 10.1039/d2nr02278h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Synthesizing metal nanoparticles with fine control of size, shape and surface properties is of high interest for applications such as catalysis, nanoplasmonics, and fuel cells. In this contribution, we demonstrate that the citrate-coated surfaces of palladium (Pd) and platinum (Pt)@Pd nanocubes with a lateral length <5 nm and low polydispersity in shape achieve superior catalytic properties. The synthesis achieves great control of the nanoparticle's physico-chemical properties by using only biogenic reagents and bromide ions in water while being fast, easy to perform and scalable. The role of the seed morphology is pivotal as Pt single crystal seeds are necessary to achieve low polydispersity in shape and prevent nanorods formation. In addition, electrochemical measurements demonstrate the abundancy of Pd{100} surface facets at a macroscopic level, in line with information inferred from TEM analysis. Quantum density functional theory calculations indicate that the kinetic origin of cubic Pd nanoshapes is facet-selective Pd reduction/deposition on Pd(111). Moreover, we underline both from an experimental and theoretical point of view that bromide alone does not induce nanocube formation without the synergy with formic acid. The superior performance of these highly controlled nanoparticles to perform the catalytic reduction of 4-nitrophenol was proved: polymer-free and surfactant-free Pd nanocubes outperform state-of-the-art materials by a factor >6 and a commercial Pd/C catalyst by more than one order of magnitude.
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Affiliation(s)
- Valentina Mastronardi
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Junseok Kim
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
| | - Marina Veronesi
- D3-PharmaChemistry, Istituto Italiano di Tecnologia, 16163 Genoa, Italy
- Structural Biophysics and Translational Pharmacology Facility, Istituto Italiano di Tecnologia, 16163 Genoa, Italy
| | - Tania Pomili
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Francesco Berti
- D3-PharmaChemistry, Istituto Italiano di Tecnologia, 16163 Genoa, Italy
| | - Gayatri Udayan
- Department of Engineering for Innovation, University of Salento, Via per Monteroni, 73100 Lecce, Italy
- Center for Bio-Molecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti 14, 73010 Arnesano (Lecce), Italy
| | - Rosaria Brescia
- Electron Microscopy Facility, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy
| | - Justus S Diercks
- Electrochemistry Laboratory, Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen, Switzerland
| | - Juan Herranz
- Electrochemistry Laboratory, Paul Scherrer Institut, Forschungsstrasse 111, 5232 Villigen, Switzerland
| | - Tiziano Bandiera
- D3-PharmaChemistry, Istituto Italiano di Tecnologia, 16163 Genoa, Italy
| | - Kristen A Fichthorn
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
| | - Pier Paolo Pompa
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
| | - Mauro Moglianetti
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy.
- Center for Bio-Molecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti 14, 73010 Arnesano (Lecce), Italy
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10
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Maruta Y, Kusada K, Wu D, Yamamoto T, Toriyama T, Matsumura S, Seo O, Yasuno S, Kawaguchi S, Sakata O, Kubota Y, Kitagawa H. Compositional dependence of structures and hydrogen evolution reaction activity of platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles. Chem Commun (Camb) 2022; 58:6421-6424. [PMID: 35546308 DOI: 10.1039/d2cc01866g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Platinum-group-metal quinary RuRhPdIrPt alloy nanoparticles were synthesised with compositions slightly away from equimolar, and their crystal and electronic structures were investigated. Their lattice constant changed linearly with composition, while the d-band centre changed nonlinearly. Their catalytic activities for the hydrogen evolution reaction were not correlated with their d-band centre.
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Affiliation(s)
- Yuto Maruta
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan. .,The HAKUBI Centre for Advanced Research, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.,JST-PRESTO, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012, Japan
| | - Dongshuang Wu
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Tomokazu Yamamoto
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Syo Matsumura
- The Ultramicroscopy Research Centre, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.,Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Okkyun Seo
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Satoshi Yasuno
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Shogo Kawaguchi
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Osami Sakata
- Center for Synchrotron Radiation Research, Japan Synchrotron Radiation Research Institute (JASRI) SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Yoshiki Kubota
- Department of Physics, Graduate School of Science, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
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11
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Affiliation(s)
- Andrew R. Akbashev
- Division for Research with Neutrons and Muons (NUM), Paul Scherrer Institute, 5232 Villigen, Switzerland
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12
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Chen X, Granda-Marulanda LP, McCrum IT, Koper MTM. How palladium inhibits CO poisoning during electrocatalytic formic acid oxidation and carbon dioxide reduction. Nat Commun 2022; 13:38. [PMID: 35013444 PMCID: PMC8748733 DOI: 10.1038/s41467-021-27793-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 12/09/2021] [Indexed: 11/09/2022] Open
Abstract
Development of reversible and stable catalysts for the electrochemical reduction of CO2 is of great interest. Here, we elucidate the atomistic details of how a palladium electrocatalyst inhibits CO poisoning during both formic acid oxidation to carbon dioxide and carbon dioxide reduction to formic acid. We compare results obtained with a platinum single-crystal electrode modified with and without a single monolayer of palladium. We combine (high-scan-rate) cyclic voltammetry with density functional theory to explain the absence of CO poisoning on the palladium-modified electrode. We show how the high formate coverage on the palladium-modified electrode protects the surface from poisoning during formic acid oxidation, and how the adsorption of CO precursor dictates the delayed poisoning during CO2 reduction. The nature of the hydrogen adsorbed on the palladium-modified electrode is considerably different from platinum, supporting a model to explain the reversibility of this reaction. Our results help in designing catalysts for which CO poisoning needs to be avoided.
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Affiliation(s)
- Xiaoting Chen
- Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300, RA, Leiden, the Netherlands
| | - Laura P Granda-Marulanda
- Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300, RA, Leiden, the Netherlands
| | - Ian T McCrum
- Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300, RA, Leiden, the Netherlands.,Department of Chemical and Biomolecular Engineering, Clarkson University, Potsdam, NY, USA
| | - Marc T M Koper
- Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300, RA, Leiden, the Netherlands.
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13
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Thuy Thi Phan V, Andvaag IR, Boyle ND, Flaman GT, Unni B, Burgess IJ. Surface Sensitive Infrared Spectroelectrochemistry using Palladium Electrodeposited on ITO-Modified Internal Reflection Elements. Phys Chem Chem Phys 2022; 24:2925-2933. [DOI: 10.1039/d1cp05130j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium nanoparticles have been electrodeposited on the surfaces of conductive indium tin oxide (ITO) modified silicon internal reflection elements. The resulting films are shown to be excellent platforms for attenuated...
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14
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Zhang J, Mosali VSS, Li L, Puxty G, Horne MD, Bond AM. Ultra‐thin Pd and CuPd bimetallic alloy nanosheets for electrochemical reduction of CO2. ChemElectroChem 2021. [DOI: 10.1002/celc.202101227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jie Zhang
- Monash University School of Chemistry Clayton 3800 Melbourne AUSTRALIA
| | | | - Linbo Li
- Monash University School of Chemistry AUSTRALIA
| | - Graeme Puxty
- CSIRO: Commonwealth Scientific and Industrial Research Organisation Energy AUSTRALIA
| | - Michael D. Horne
- CSIRO: Commonwealth Scientific and Industrial Research Organisation Manufacturing AUSTRALIA
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15
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Zhang YJ, Su ZF, Li JF, Lipkowski J. Water structure at the multilayers of palladium deposited at nanostructured Au electrodes. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Li Z, Chen F, Bian W, Kou B, Wang Q, Guo L, Jin T, Tang Q, Pan B. Surface Pourbaix diagram of AgPd nanoalloys and its application in formate oxidation reaction. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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18
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Rettenmaier C, Arán-Ais RM, Timoshenko J, Rizo R, Jeon HS, Kühl S, Chee SW, Bergmann A, Roldan Cuenya B. Enhanced Formic Acid Oxidation over SnO 2-decorated Pd Nanocubes. ACS Catal 2020; 10:14540-14551. [PMID: 33362944 PMCID: PMC7754515 DOI: 10.1021/acscatal.0c03212] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/23/2020] [Indexed: 11/28/2022]
Abstract
The formic acid oxidation reaction (FAOR) is one of the key reactions that can be used at the anode of low-temperature liquid fuel cells. To allow the knowledge-driven development of improved catalysts, it is necessary to deeply understand the fundamental aspects of the FAOR, which can be ideally achieved by investigating highly active model catalysts. Here, we studied SnO2-decorated Pd nanocubes (NCs) exhibiting excellent electrocatalytic performance for formic acid oxidation in acidic medium with a SnO2 promotion that boosts the catalytic activity by a factor of 5.8, compared to pure Pd NCs, exhibiting values of 2.46 A mg-1 Pd for SnO2@Pd NCs versus 0.42 A mg-1 Pd for the Pd NCs and a 100 mV lower peak potential. By using ex situ, quasi in situ, and operando spectroscopic and microscopic methods (namely, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray absorption fine-structure spectroscopy), we identified that the initially well-defined SnO2-decorated Pd nanocubes maintain their structure and composition throughout FAOR. In situ Fourier-transformed infrared spectroscopy revealed a weaker CO adsorption site in the case of the SnO2-decorated Pd NCs, compared to the monometallic Pd NCs, enabling a bifunctional reaction mechanism. Therein, SnO2 provides oxygen species to the Pd surface at low overpotentials, promoting the oxidation of the poisoning CO intermediate and, thus, improving the catalytic performance of Pd. Our SnO x -decorated Pd nanocubes allowed deeper insight into the mechanism of FAOR and hold promise for possible applications in direct formic acid fuel cells.
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Affiliation(s)
- Clara Rettenmaier
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Rosa M. Arán-Ais
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Janis Timoshenko
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Rubén Rizo
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Hyo Sang Jeon
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Stefanie Kühl
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - See Wee Chee
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Arno Bergmann
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz-Haber-Institute of the Max-Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
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19
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Zhang H, Lu K, Li B, Liu Y, Su Y, Wang R, Cheng Y. Microfluidic, One-Batch Synthesis of Pd Nanocrystals on N-Doped Carbon in Surfactant-Free Deep Eutectic Solvents for Formic Acid Electrochemical Oxidation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:42704-42710. [PMID: 32857491 DOI: 10.1021/acsami.0c10136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
One of the grand challenges that impedes practical applications of nanomaterials is the lack of robust manufacturing methods that are scalable, cheap, and environmentally friendly. Herein, we address this challenge by developing a microfluidic approach that produces surfactant-free Pd nanocrystals (NCs) uniformly loaded on N-doped porous carbon in a one-batch process. The deep eutectic solvent (DES) prepared from choline chloride and ethylene glycol was employed as a novel synthesis solvent, and its extended hydrogen networks and abundant ionic species effectively stabilize Pd facets and confine nanocrystal sizes without using surfactants. The microreactors provide faster heat exchange and more uniform mass transport, which in combination with DES produced Pd NCs with better-defined shape and predominately exposed Pd (100) facet. Furthermore, we describe that the N-doped functional groups in porous carbon direct dense and uniform heterogeneous growth of Pd NCs in a one-batch process, thereby eliminating a separate catalyst deposition step that is often involved in conventional synthesis. The Pd NCs in the one-batch-produced Pd/C catalysts exhibited a size distribution of ∼13 ± 3.5 nm and a high ESCA of 46.0 m2/g and delivered 362 mA/mg for formic acid electrochemical oxidation with improved stability, demonstrating the unique potentials of microfluidic reactors and DES for the controllable and scalable synthesis of electrocatalyst materials for practical applications.
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Affiliation(s)
- Hong Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Ke Lu
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
| | - Bomin Li
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
- Applied Materials Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yuzi Liu
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yuanhai Su
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Rongyue Wang
- Applied Materials Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Yingwen Cheng
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois 60115, United States
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20
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Zhao Y, Tan X, Yang W, Jia C, Chen X, Ren W, Smith SC, Zhao C. Surface Reconstruction of Ultrathin Palladium Nanosheets during Electrocatalytic CO
2
Reduction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009616] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yong Zhao
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Xin Tan
- Integrated Materials Design Laboratory Department of Applied Mathematics Research School of Physics The Australian National University Canberra ACT 2601 Australia
| | - Wanfeng Yang
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Chen Jia
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Xianjue Chen
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Wenhao Ren
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Sean C. Smith
- Integrated Materials Design Laboratory Department of Applied Mathematics Research School of Physics The Australian National University Canberra ACT 2601 Australia
| | - Chuan Zhao
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
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21
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Zhao Y, Tan X, Yang W, Jia C, Chen X, Ren W, Smith SC, Zhao C. Surface Reconstruction of Ultrathin Palladium Nanosheets during Electrocatalytic CO
2
Reduction. Angew Chem Int Ed Engl 2020; 59:21493-21498. [DOI: 10.1002/anie.202009616] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Yong Zhao
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Xin Tan
- Integrated Materials Design Laboratory Department of Applied Mathematics Research School of Physics The Australian National University Canberra ACT 2601 Australia
| | - Wanfeng Yang
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Chen Jia
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Xianjue Chen
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Wenhao Ren
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
| | - Sean C. Smith
- Integrated Materials Design Laboratory Department of Applied Mathematics Research School of Physics The Australian National University Canberra ACT 2601 Australia
| | - Chuan Zhao
- School of Chemistry University of New South Wales Sydney New South Wales 2052 Australia
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22
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Yule LC, Daviddi E, West G, Bentley CL, Unwin PR. Surface microstructural controls on electrochemical hydrogen absorption at polycrystalline palladium. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114047] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Shen T, Chen S, Zeng R, Gong M, Zhao T, Lu Y, Liu X, Xiao D, Yang Y, Hu J, Wang D, Xin HL, Abruña HD. Tailoring the Antipoisoning Performance of Pd for Formic Acid Electrooxidation via an Ordered PdBi Intermetallic. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01537] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Tao Shen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Sijing Chen
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, P. R. China
| | - Rui Zeng
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Mingxing Gong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Tonghui Zhao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Yun Lu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Xupo Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Dongdong Xiao
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yao Yang
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
| | - Jingping Hu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, P. R. China
| | - Deli Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science and Technology), Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China
| | - Huolin L. Xin
- Department of Physics and Astronomy, University of California, Irvine, California 92697, United States
| | - Héctor D. Abruña
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, United States
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24
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Abstract
Electrochemical ammonia synthesis, which is an alternative approach to the Haber–Bosch process, has attracted the attention of researchers because of its advantages including mild working conditions, environmental protection, and simple process. However, the biggest problem in this field is the lack of high-performance catalysts. Here, we report high-efficiency electroreduction of N2 to NH3 on γ-MnO2-supported Pd nanoparticles (Pd/γ-MnO2) under ambient conditions, which exhibits excellent catalytic activity with an NH3 yield rate of 19.72 μg·mg−1Pd h−1 and a Faradaic efficiency of 8.4% at −0.05 V vs. the reversible hydrogen electrode (RHE). X-ray diffraction (XRD) and transmission electron microscopy (TEM) characterization shows that Pd nanoparticles are homogeneously dispersed on the γ-MnO2. Pd/γ-MnO2 outperforms other catalysts including Pd/C and γ-MnO2 because of its synergistic catalytic effect between Pd and Mn.
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25
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Climent V, Feliu J. Single Crystal Electrochemistry as an In Situ Analytical Characterization Tool. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2020; 13:201-222. [PMID: 32243760 DOI: 10.1146/annurev-anchem-061318-115541] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The electrochemical behavior of platinum single crystal surfaces can be taken as a model response for the interpretation of the activity of heterogeneous electrodes. The cyclic voltammogram of a given platinum electrode can be considered a fingerprint characteristic of the distribution of sites on its surface. We start this review by providing some simple mathematical descriptions of the voltammetric response in the presence of adsorption processes. We then describe the voltammogram of platinum basal planes, followed by the response of stepped surfaces. The voltammogram of polycrystalline materials can be understood as a composition of the response of the different basal contributions. Further resolution in the discrimination of different surface sites can be achieved with the aid of surface modification using adatoms such as bismuth or germanium. The application of these ideas is exemplified with the consideration of real catalysts composed of platinum nanoparticles with preferential shapes.
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Affiliation(s)
- Víctor Climent
- Instituto Universitario de Electroquímica, Universidad de Alicante, E-03690, San Vicente del Raspeig, Alicante, Spain;
| | - Juan Feliu
- Instituto Universitario de Electroquímica, Universidad de Alicante, E-03690, San Vicente del Raspeig, Alicante, Spain;
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26
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Yang Y, Zeng J, Shu Y, Gao Q. Revealing Facet Effects of Palladium Nanocrystals on Electrochemical Biosensing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:15622-15630. [PMID: 32167271 DOI: 10.1021/acsami.0c03177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Noble-metal nanocrystals (NCs) are functional segments of biosensing platforms, but their sensitivity and facet effects are still challenging. Conventional synthesis using surfactants to direct crystal growth unfortunately causes adsorbate-surface hindrance, which not only reduces sensing responses but also leads to misunderstanding on facet-dependence. Herein, we utilize electrochemical CO displacement to remove residual surfactants from facet-engineered Pd NCs, and further investigate the structure-activity relationship on specific facets, for example, {100} in cubes, {111} in octahedrons, and {110} in rhombic dodecahedrons. Along with the remarkably boosted response, facet dependence is obvious for H2O2 sensing after surface cleaning. The Pd{100} shows high sensitivity, low detection limit, and wide applicable concentration range, superior to the {110} and {111}. This can be theoretically interpreted by the befitting *OH binding on {100} and thereby the facilitated H2O2 reduction kinetics. The outstanding selectivity to H2O2 ensures the high efficiency of Pd NCs to measure intracellular H2O2 and recognize different types of cancer cells. Moreover, facet effects are also evidenced in glucose detection, highlighting that this work can provide guidelines to design efficient sensing platforms.
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Affiliation(s)
- Yang Yang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Jiachang Zeng
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Yijin Shu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
| | - Qingsheng Gao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 510632, P. R. China
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27
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Lüsi M, Erikson H, Sarapuu A, Merisalu M, Rähn M, Treshchalov A, Paiste P, Käärik M, Leis J, Sammelselg V, Kaljuvee T, Tammeveski K. Electroreduction of Oxygen on Carbide‐Derived Carbon Supported Pd Catalysts. ChemElectroChem 2020. [DOI: 10.1002/celc.201902136] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Madis Lüsi
- Institute of ChemistryUniversity of Tartu Ravila 14a 50411 Tartu Estonia
| | - Heiki Erikson
- Institute of ChemistryUniversity of Tartu Ravila 14a 50411 Tartu Estonia
| | - Ave Sarapuu
- Institute of ChemistryUniversity of Tartu Ravila 14a 50411 Tartu Estonia
| | - Maido Merisalu
- Institute of ChemistryUniversity of Tartu Ravila 14a 50411 Tartu Estonia
- Institute of PhysicsUniversity of Tartu W. Ostwald Str.1 50411 Tartu Estonia
| | - Mihkel Rähn
- Institute of PhysicsUniversity of Tartu W. Ostwald Str.1 50411 Tartu Estonia
| | - Alexey Treshchalov
- Institute of PhysicsUniversity of Tartu W. Ostwald Str.1 50411 Tartu Estonia
| | - Päärn Paiste
- Department of GeologyUniversity of Tartu Ravila 14a 50411 Tartu Estonia
| | - Maike Käärik
- Institute of ChemistryUniversity of Tartu Ravila 14a 50411 Tartu Estonia
| | - Jaan Leis
- Institute of ChemistryUniversity of Tartu Ravila 14a 50411 Tartu Estonia
| | - Väino Sammelselg
- Institute of ChemistryUniversity of Tartu Ravila 14a 50411 Tartu Estonia
- Institute of PhysicsUniversity of Tartu W. Ostwald Str.1 50411 Tartu Estonia
| | - Tiit Kaljuvee
- Laboratory of Inorganic MaterialsTallinn University of Technology Ehitajate tee 5 19086 Tallinn Estonia
| | - Kaido Tammeveski
- Institute of ChemistryUniversity of Tartu Ravila 14a 50411 Tartu Estonia
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28
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Podlovchenko B, Maksimov Y, Volkov D, Evlashin S. Codeposition of Pd and Pb and electrocatalytic properties of their composite. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113787] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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29
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Gamler JTL, Shin K, Ashberry HM, Chen Y, Bueno SLA, Tang Y, Henkelman G, Skrabalak SE. Intermetallic Pd 3Pb nanocubes with high selectivity for the 4-electron oxygen reduction reaction pathway. NANOSCALE 2020; 12:2532-2541. [PMID: 31932821 DOI: 10.1039/c9nr09759g] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Pd-Based nanoparticles are excellent alternatives to the typically used Pt-based materials that catalyze fuel cell reactions. Specifically, Pd-based intermetallic nanomaterials have shown great promise as electrocatalysts for the oxygen reduction reaction (ORR) in alkaline media; however, their synthesis remains a challenge and shape-controlled nanoparticles are limited. Here, a low-temperature approach to intermetallic Pd3Pb nanocubes is demonstrated and their electrocatalytic properties evaluated for the ORR. The intermetallic Pd3Pb nanocubes outperformed all reference catalysts, with a mass activity of 154 mA mgPd-1 which is a 130% increase in activity compared to the commercial Pd/C reference and a 230% increase compared to Pd nanocubes. Tafel analysis reveals that the Pd3Pb nanocubes are highly selective for the 4-electron reduction pathway, with minimal HO2- formation. Density functional theory (DFT) calculations show that the increased activity for the intermetallic nanocubes compared to Pd is likely due to the weakening of OH* adsorption, decreasing the required overpotential. These results show that intermetallic Pd3Pb nanocubes are highly efficient for the 4-electron pathway of the ORR and could inspire the study of other shape-controlled intermetallics as catalysts for fuel cell applications.
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Affiliation(s)
- Jocelyn T L Gamler
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, IN 47405, USA.
| | - Kihyun Shin
- Department of Chemistry and the Oden Institute for Computational Engineering and Science, The University of Texas at Austin, 105 E. 24th St., Stop A5300, Austin, TX 78712, USA
| | - Hannah M Ashberry
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, IN 47405, USA.
| | - Yifan Chen
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, IN 47405, USA. and Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Sandra L A Bueno
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, IN 47405, USA.
| | - Yawen Tang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Graeme Henkelman
- Department of Chemistry and the Oden Institute for Computational Engineering and Science, The University of Texas at Austin, 105 E. 24th St., Stop A5300, Austin, TX 78712, USA
| | - Sara E Skrabalak
- Department of Chemistry, Indiana University - Bloomington, 800 E. Kirkwood Ave., Bloomington, IN 47405, USA.
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30
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Bao H, Wu F, Li F, Zhang L, Yuan Y, Xu G, Niu W. Dual roles of underpotential deposition in the synthesis of tetrahexahedral Pd–Ag alloy nanocrystals. Chem Commun (Camb) 2020; 56:14849-14852. [DOI: 10.1039/d0cc06090a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Underpotential deposition of Ag(i) not only selectively passivates the high-index facets of tetrahexahedral nanocrystals, but also leads to the formation of Pd–Ag alloy structures.
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Affiliation(s)
- Haibo Bao
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Fengxia Wu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Fenghua Li
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Ling Zhang
- School of Science
- Harbin Institute of Technology
- Shenzhen
- China
| | - Yali Yuan
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin
- China
| | - Guobao Xu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Wenxin Niu
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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31
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Lei J, Wei Z, Xu ML, Wei J, Chen YX, Ye S. Effect of sulfate adlayer on formic acid oxidation on Pd(111) electrode. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1904079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Jing Lei
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Zhen Wei
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Mian-le Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Jie Wei
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Yan-xia Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Shen Ye
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Japan
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32
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Cyclic two-step electrolysis for stable electrochemical conversion of carbon dioxide to formate. Nat Commun 2019; 10:3919. [PMID: 31477719 PMCID: PMC6718411 DOI: 10.1038/s41467-019-11903-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 08/05/2019] [Indexed: 11/08/2022] Open
Abstract
Pd metal and Pd-based alloys are ideal catalysts that allow for the electrochemical conversion of CO2 to HCOO− at almost zero-overpotential with high selectivity, but catalyst degradation caused by concurrent CO poisoning limits their practical implementation. Here, we demonstrate that cyclic two-step electrolysis, by applying the reduction and oxidation potentials alternately, achieves 100% current density stability and 97.8% selectivity toward HCOO− production for at least 45 h. The key idea for achieving the reliability is based on the selective removal of CO by controlling the parameters during the oxidation step, which utilizes the different reversibility of HCOO− and CO production reactions. Furthermore, it is found that potentiostatic electrolysis causes CO adsorption and subsequent dehydridation, which in turn lowers HCOO− selectivity. Our work provides a system-level strategy for solving the poisoning issue that is inevitable in many electrocatalytic reactions. Reduction of carbon dioxide is promising for the production of value-added chemicals, but electrocatalysts are hindered by carbon monoxide poisoning. Here, the authors alternate reduction and oxidation potentials to achieve stable and selective long-term electrocatalytic reduction of carbon dioxide to formate.
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33
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Garnier E, Vidal-Iglesias FJ, Feliu JM, Solla-Gullón J. Surface Structure Characterization of Shape and Size Controlled Pd Nanoparticles by Cu UPD: A Quantitative Approach. Front Chem 2019; 7:527. [PMID: 31417893 PMCID: PMC6684747 DOI: 10.3389/fchem.2019.00527] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/11/2019] [Indexed: 11/21/2022] Open
Abstract
The search for new surface sensitive probes that characterize the surface structure of shape and size-controlled nanoparticles is an interesting topic to properly understand the correlations between electrocatalytic properties and surface structure at the nanoscale. Herein, we report the use of Cu UPD to characterize, not only qualitatively but also quantitatively, the surface structure of different Pd nanoparticles with controlled particle shape and size. Thus, Pd nanoparticles with cubic, octahedral and rhombic dodecahedral shapes, that is, with preferential {100}, {111}, and {110} surface structures, respectively, were prepared. In addition, cubic Pd nanoparticles with different particles sizes and spherical (2–3 nm) Pd nanoparticles were also synthesized. Based on the Cu UPD results on Pd single crystals, a new approach is proposed to qualitatively and quantitatively determine the percentages of {100}, {111}, and {110} surface domains present at the surface of the different shape and size controlled Pd nanoparticles. The results reported clearly show the benefits of this Cu UPD to get detailed information of the surface structure of the nanoparticles according to their particle shape and size.
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Affiliation(s)
- Emmanuel Garnier
- Instituto de Electroquímica, Universidad de Alicante, Alicante, Spain
| | | | - Juan M Feliu
- Instituto de Electroquímica, Universidad de Alicante, Alicante, Spain
| | - José Solla-Gullón
- Instituto de Electroquímica, Universidad de Alicante, Alicante, Spain
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34
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Rafaïdeen T, Baranton S, Coutanceau C. Pd-Shaped Nanoparticles Modified by Gold ad-Atoms: Effects on Surface Structure and Activity Toward Glucose Electrooxidation. Front Chem 2019; 7:453. [PMID: 31294018 PMCID: PMC6606787 DOI: 10.3389/fchem.2019.00453] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 06/07/2019] [Indexed: 11/23/2022] Open
Abstract
Palladium nanoparticles (Pd-NPs) with controlled distributions of sizes and shapes (nanospheres-Pd-NS-, nanocubes -Pd-NC-, and nanooctahedrons -Pd-NO-) are synthesized by wet chemistry methods and characterized by TEM/HRTEM. The surfaces of Pd-NPs are modified by spontaneous adsorption of gold and characterized by cyclic voltammetry in acidic medium. It is shown that the modification of Pd-NPs by dipping in HAuCl4 solutions of different concentrations allows controlling the surface coverage by gold. It is also shown that the modification of Pd-NPs surfaces involves first the formation of PdAu surface alloys. For higher coverages, both PdAu surface alloys and pure Au structures are formed. The activity toward the glucose electrooxidation reaction is determined by linear scan voltammetry (LSV). Higher activity is observed on pure Pd-NC presenting extended (100) surfaces than on Pd-NO with mainly (111) surface orientation and on Pd-NS without preferential surface orientation, both these latter Pd-NPs displaying almost the same activity. The modification of the surface by spontaneous adsorption of gold greatly improves the activity of all Pd-NPs. However, Au-modified Pd-NC materials remain the most active catalysts. PdAu surface alloys seem to be involved in the improvement of the catalytic activity at low potentials, although the role of pure gold structures on Pd-NPs toward the enhancement of the catalytic activity cannot be excluded for high gold coverage. The study allows a better understanding of the material structure/electrocatalytic behavior relationship.
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Affiliation(s)
| | | | - Christophe Coutanceau
- Catalysis and UnConventional Media group, IC2MP, Université de Poitiers, UMR CNRS 7285, Poitiers, France
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Abstract
Cubic, octahedral, and rhombic dodecahedral gold nanocrystals enclosed by {100}, {111}, and {110} facets, respectively, were prepared by a seed-mediated growth method at the room temperature. Palladium thin films were coated on these Au nanocrystals by a redox replacement approach to explore their catalytic activities. It is revealed that formic acid and carbon monoxide oxidation in 0.1 M HClO4 on Au nanocrystals coated with one monolayer (ML) of Pd are facet-dependent and resemble those obtained from corresponding Pd single crystals and Pd films deposited on bulk Au single crystals, suggesting epitaxial growth of Pd overlayers on the Au nanocrystal surfaces. As the Pd film thickness increased, formic acid oxidation current density decreased and the CO oxidation potential moved to more negative. The catalytic activity remained largely unchanged after 3–5 MLs of Pd deposition. The specific adsorption of (bi)sulfate was shown to hinder the formic acid oxidation and the effect decreased with the increasing Pd film thickness. These observations were explained in the framework of the d-band theory. This study highlights the feasibility of engineering high-performance catalysts through deposition of catalytically active metal thin films on facet-controlled inert nanocrystals.
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Aguilar‐Vallejo A, Álvarez‐Contreras L, Guerra‐Balcázar M, Ledesma‐García J, Gerardo Arriaga L, Arjona N, Rivas S. Electrocatalytic Evaluation of Highly Stable Pt/ZrO
2
Electrocatalysts for the Methanol Oxidation Reaction Synthesized Without the Assistance of Any Carbon Support. ChemElectroChem 2019. [DOI: 10.1002/celc.201900220] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Angélica Aguilar‐Vallejo
- División de Investigación y Posgrado Facultad de IngenieríaUniversidad Autónoma de Querétaro Querétaro C.P. 76010 México
- Tecnológico Nacional de MéxicoInstituto Tecnológico de Tijuana Apdo. Postal 1166 Tijuana 22444 Baja California México
| | - Lorena Álvarez‐Contreras
- Centro de Investigación en Materiales AvanzadosComplejo Industrial Chihuahua Chihuahua C.P. 31136 México
| | - Minerva Guerra‐Balcázar
- División de Investigación y Posgrado Facultad de IngenieríaUniversidad Autónoma de Querétaro Querétaro C.P. 76010 México
| | - Janet Ledesma‐García
- División de Investigación y Posgrado Facultad de IngenieríaUniversidad Autónoma de Querétaro Querétaro C.P. 76010 México
| | - Luis Gerardo Arriaga
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C.Parque Tecnológico Querétaro S/N, Sanfandila Pedro Escobedo C.P. 76703 México
| | - Noé Arjona
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C.Parque Tecnológico Querétaro S/N, Sanfandila Pedro Escobedo C.P. 76703 México
| | - Sandra Rivas
- División de Investigación y Posgrado Facultad de IngenieríaUniversidad Autónoma de Querétaro Querétaro C.P. 76010 México
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Lüsi M, Erikson H, Merisalu M, Rähn M, Sammelselg V, Tammeveski K. Electrochemical reduction of oxygen in alkaline solution on Pd/C catalysts prepared by electrodeposition on various carbon nanomaterials. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.12.061] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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38
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Synthesis of Pd Fe3O4 nanoparticles varying the stabilizing agent and additive and their effect on the ethanol electro-oxidation in alkaline media. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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39
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García-Cruz L, Montiel V, Solla-Gullón J. Shape-controlled metal nanoparticles for electrocatalytic applications. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2017-0124] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Abstract
The application of shape-controlled metal nanoparticles is profoundly impacting the field of electrocatalysis. On the one hand, their use has remarkably enhanced the electrocatalytic activity of many different reactions of interest. On the other hand, their usage is deeply contributing to a correct understanding of the correlations between shape/surface structure and electrochemical reactivity at the nanoscale. However, from the point of view of an electrochemist, there are a number of questions that must be fully satisfied before the evaluation of the shaped metal nanoparticles as electrocatalysts including (i) surface cleaning, (ii) surface structure characterization, and (iii) correlations between particle shape and surface structure. In this chapter, we will cover all these aspects. Initially, we will collect and discuss about the different practical protocols and procedures for obtaining clean shaped metal nanoparticles. This is an indispensable requirement for the establishment of correct correlations between shape/surface structure and electrochemical reactivity. Next, we will also report how some easy-to-do electrochemical experiments including their subsequent analyses can enormously contribute to a detailed characterization of the surface structure of the shaped metal nanoparticles. At this point, we will remark that the key point determining the resulting electrocatalytic activity is the surface structure of the nanoparticles (obviously, the atomic composition is also extremely relevant) but not the particle shape. Finally, we will summarize some of the most significant advances/results on the use of these shaped metal nanoparticles in electrocatalysis covering a wide range of electrocatalytic reactions including fuel cell-related reactions (electrooxidation of formic acid, methanol and ethanol and oxygen reduction) and also CO2 electroreduction.
Graphical Abstract:
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40
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Song Y, Xiang C, Bi C, Wu C, He H, Du W, Huang L, Tian H, Xia H. pH-Dependent growth of atomic Pd layers on trisoctahedral gold nanoparticles to realize enhanced performance in electrocatalysis and chemical catalysis. NANOSCALE 2018; 10:22302-22311. [PMID: 30467565 DOI: 10.1039/c8nr07224h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this work, the controlled epitaxial growth of ultrathin Pd shells of a few atomic layers (denoted as nL) on the surfaces of gold nanoparticle (Au NP) cores of different morphologies (trisoctahedral, cubic, and spherical shapes) in the presence of cetyltrimethylammonium chloride (CTAC) was achieved by regulating the pH value of the aqueous CTAC solution and finely tuning the amount of the Pd precursor. It was found that the critical shell thickness for epitaxial Pd growth at the optimal pH value was 4 atomic layers, taking {331}-faceted trisoctahedral (TOH) Au@PdnL NPs as an example, on the basis of the results of atomic-resolution high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) images. Moreover, the resulting TOH Au@Pd1L NPs (100.9 m2 g-1, 13.2 A mgPd-1 and 13.1 mA cm-2) exhibited excellent electrocatalytic performance and long-term electrocatalytic activity for ethanol oxidation, around 4.8-fold, 66-fold, and 21.8-fold better than commercial Pd/C catalysts (31 m2 g-1, 0.2 A mgPd-1, and 0.6 mA cm-2). Furthermore, the resulting TOH Au@Pd1L NPs not only markedly enhance the chemical catalytic activity for the reduction of 4-nitrophenol (4-NP), but also allow the in situ surface-enhanced Raman spectroscopy (SERS) monitoring of the reaction process of the Pd-catalyzed reduction of 4-NTP. Thus, our work may provide a new way to fabricate core-shell (CS) bimetallic NPs with the merits of both metal outer shells (excellent catalytic performance in electrocatalysis and chemical catalysis) and Au NP cores (reaction process by in situ SERS monitoring).
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Affiliation(s)
- Yahui Song
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China.
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41
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Qiu Y, Xin L, Li Y, McCrum IT, Guo F, Ma T, Ren Y, Liu Q, Zhou L, Gu S, Janik MJ, Li W. BCC-Phased PdCu Alloy as a Highly Active Electrocatalyst for Hydrogen Oxidation in Alkaline Electrolytes. J Am Chem Soc 2018; 140:16580-16588. [DOI: 10.1021/jacs.8b08356] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yang Qiu
- Department of Chemical and Biological Engineering, Iowa State University, 618 Bissell Road, Ames, Iowa 50011, United Sates
| | - Le Xin
- Department of Chemical and Biological Engineering, Iowa State University, 618 Bissell Road, Ames, Iowa 50011, United Sates
| | - Yawei Li
- Department of Chemical Engineering, Pennsylvania State University, 51 Greenberg Building, University Park, Pennsylvania 16802, United States
| | - Ian T. McCrum
- Department of Chemical Engineering, Pennsylvania State University, 51 Greenberg Building, University Park, Pennsylvania 16802, United States
| | - Fangmin Guo
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Tao Ma
- Ames Laboratory, U.S. Department of Energy, 311 Iowa State University, Ames, Iowa 50011, United States
| | - Yang Ren
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Qi Liu
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, United States
| | - Lin Zhou
- Ames Laboratory, U.S. Department of Energy, 311 Iowa State University, Ames, Iowa 50011, United States
| | - Shuang Gu
- Department of Mechanical Engineering, Wichita State University, 1845 Fairmount St. Wichita, Kansas 67260, United States
| | - Michael J. Janik
- Department of Chemical Engineering, Pennsylvania State University, 51 Greenberg Building, University Park, Pennsylvania 16802, United States
| | - Wenzhen Li
- Department of Chemical and Biological Engineering, Iowa State University, 618 Bissell Road, Ames, Iowa 50011, United Sates
- Ames Laboratory, U.S. Department of Energy, 311 Iowa State University, Ames, Iowa 50011, United States
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42
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Vinogradova O, Krishnamurthy D, Pande V, Viswanathan V. Quantifying Confidence in DFT-Predicted Surface Pourbaix Diagrams of Transition-Metal Electrode-Electrolyte Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12259-12269. [PMID: 30240564 DOI: 10.1021/acs.langmuir.8b02219] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Density functional theory (DFT) calculations have been widely used to predict the activity of catalysts based on the free energies of reaction intermediates. The incorporation of the state of the catalyst surface under the electrochemical operating conditions while constructing the free-energy diagram is crucial, without which even trends in activity predictions could be imprecisely captured. Surface Pourbaix diagrams indicate the surface state as a function of the pH and the potential. In this work, we utilize error-estimation capabilities within the Bayesian ensemble error functional with van der Waals correlations exchange correlation functional as an ensemble approach to propagate the uncertainty associated with the adsorption energetics in the construction of Pourbaix diagrams. Within this approach, surface-transition phase boundaries are no longer sharp and are therefore associated with a finite width. We determine the surface phase diagram for several transition metals under reaction conditions and electrode potentials relevant for the oxygen reduction reaction. We observe that our surface phase predictions for most predominant species are in good agreement with cyclic voltammetry experiments and prior DFT studies. We use the OH* intermediate for comparing adsorption characteristics on Pt(111), Pt(100), Pd(111), Ir(111), Rh(111), and Ru(0001) since it has been shown to have a higher prediction efficiency relative to O*, and find the trend Ru > Rh > Ir > Pt > Pd for (111) metal facets, where Ru binds OH* the strongest. We robustly predict the likely surface phase as a function of reaction conditions by associating confidence values for quantifying the confidence in predictions within the Pourbaix diagram. We define a confidence quantifying metric, using which certain experimentally observed surface phases and peak assignments can be better rationalized. The probabilistic approach enables a more accurate determination of the surface structure and can readily be incorporated in computational studies for better understanding the catalyst surface under operating conditions.
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43
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HOSHI N, NAKAMURA M. Elucidation of Activity Enhancement Factors for the Oxygen Reduction Reaction on Platinum and Palladium Single Crystal Electrodes. ELECTROCHEMISTRY 2018. [DOI: 10.5796/electrochemistry.18-h0002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Nagahiro HOSHI
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University
| | - Masashi NAKAMURA
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University
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44
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Wang J, Yu L, Hu L, Chen G, Xin H, Feng X. Ambient ammonia synthesis via palladium-catalyzed electrohydrogenation of dinitrogen at low overpotential. Nat Commun 2018; 9:1795. [PMID: 29765053 PMCID: PMC5953946 DOI: 10.1038/s41467-018-04213-9] [Citation(s) in RCA: 297] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/11/2018] [Indexed: 11/09/2022] Open
Abstract
Electrochemical reduction of N2 to NH3 provides an alternative to the Haber-Bosch process for sustainable, distributed production of NH3 when powered by renewable electricity. However, the development of such process has been impeded by the lack of efficient electrocatalysts for N2 reduction. Here we report efficient electroreduction of N2 to NH3 on palladium nanoparticles in phosphate buffer solution under ambient conditions, which exhibits high activity and selectivity with an NH3 yield rate of ~4.5 μg mg-1Pd h-1 and a Faradaic efficiency of 8.2% at 0.1 V vs. the reversible hydrogen electrode (corresponding to a low overpotential of 56 mV), outperforming other catalysts including gold and platinum. Density functional theory calculations suggest that the unique activity of palladium originates from its balanced hydrogen evolution activity and the Grotthuss-like hydride transfer mechanism on α-palladium hydride that lowers the free energy barrier of N2 hydrogenation to *N2H, the rate-limiting step for NH3 electrosynthesis.
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Affiliation(s)
- Jun Wang
- Department of Physics, University of Central Florida, Orlando, FL, 32816, USA
| | - Liang Yu
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Lin Hu
- Department of Materials Science and Engineering, University of Central Florida, Orlando, FL, 32816, USA
| | - Gang Chen
- Department of Chemistry, University of Central Florida, Orlando, FL, 32816, USA
| | - Hongliang Xin
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA.
| | - Xiaofeng Feng
- Department of Physics, University of Central Florida, Orlando, FL, 32816, USA.
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45
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Liu Y, Li X, Bi W, Jin M. An etching-assisted route for fast and large-scale fabrication of non-layered palladium nanosheets. NANOSCALE 2018; 10:7505-7510. [PMID: 29637967 DOI: 10.1039/c8nr00792f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To date, great progress has been made in the shape-controlled synthesis of noble-metal nanocrystals. However, there still exists a major gap between academic studies and industrial applications due to the inability to produce nanocrystals in large quantities while retaining their uniformity. To help fill this gap, herein, we provide a new route to scale up and accelerate the production of non-layered palladium nanosheets (Pd NSs) by incorporating etching while retaining effective capping during the synthesis. The key to this rapid synthesis is the etching induced by selected etchants (e.g., Fe3+/Fe2+, Cl-/O2, Br-/O2, and I-/O2). Specifically, this synthesis can be accomplished within 3 min, reaching a yield as high as 7.2 g L-1 h-1. The thickness of Pd NSs can be tuned to 1.6, 2.0, 2.3, and 3.5 nm by controlling the etching and reducing rates via choosing different type of etchants. Moreover, these non-layered Pd NSs are fabricated in an aqueous solution without the addition of any organic compounds; therefore, the surface of these NSs is extremely clean. When used as a catalyst for the formic acid oxidation reaction, the as-prepared non-layered Pd NSs exhibit a mass activity as high as 1350 mA mg-1, which is 3.7 times higher than that of commercial Pd/C, due to their much larger electrochemical surface area (66.2 m2 g-1, which is 2.7 times higher than that of commercial Pd/C).
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Affiliation(s)
- Yaming Liu
- Frontier Institute of Science and Technology and State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
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46
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He C, Tao J, Shen PK. Solid Synthesis of Ultrathin Palladium and Its Alloys’ Nanosheets on RGO with High Catalytic Activity for Oxygen Reduction Reaction. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03190] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chunyong He
- Dongguan Neutron Science Center, Dongguan 523803, China
- Institute
of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Juzhou Tao
- Dongguan Neutron Science Center, Dongguan 523803, China
- Institute
of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
| | - Pei Kang Shen
- Collaborative
Innovation Center of Sustainable Energy Materials, Guangxi University, Nanning, Guangxi 530004, China
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47
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Ma XY, Chen Y, Wang H, Li QX, Lin WF, Cai WB. Electrocatalytic oxidation of ethanol and ethylene glycol on cubic, octahedral and rhombic dodecahedral palladium nanocrystals. Chem Commun (Camb) 2018; 54:2562-2565. [DOI: 10.1039/c7cc08793d] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ethanol and ethylene glycol electrocatalytic oxidation on Pd cubic, octahedral and rhombic dodecahedral nanocrystals in alkaline media was systematically investigated.
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Affiliation(s)
- Xian-Yin Ma
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power
- College of Environmental and Chemical Engineering
- Shanghai University of Electric Power
- Shanghai 200090
- China
| | - Yafeng Chen
- Department of Chemical Engineering
- Loughborough University
- Loughborough
- UK
| | - Han Wang
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials
- Collaborative Innovation Center of Chemistry for Energy Materials
- Department of Chemistry
- Fudan University
- Shanghai 200433
| | - Qiao-Xia Li
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power
- College of Environmental and Chemical Engineering
- Shanghai University of Electric Power
- Shanghai 200090
- China
| | - Wen-Feng Lin
- Department of Chemical Engineering
- Loughborough University
- Loughborough
- UK
| | - Wen-Bin Cai
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power
- College of Environmental and Chemical Engineering
- Shanghai University of Electric Power
- Shanghai 200090
- China
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48
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Wang H, Jiang B, Zhao TT, Jiang K, Yang YY, Zhang J, Xie Z, Cai WB. Electrocatalysis of Ethylene Glycol Oxidation on Bare and Bi-Modified Pd Concave Nanocubes in Alkaline Solution: An Interfacial Infrared Spectroscopic Investigation. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03108] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Han Wang
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Bei Jiang
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Ting-Ting Zhao
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Kun Jiang
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
| | - Yao-Yue Yang
- College
of Chemistry and Environmental Protection Engineering, Southwest University for Nationalities, Chengdu 610041, China
| | - Jiawei Zhang
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Zhaoxiong Xie
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Wen-Bin Cai
- Shanghai
Key Laboratory of Molecular Catalysis and Innovative Materials, Collaborative
Innovation Center of Chemistry for Energy Materials, Department of
Chemistry, Fudan University, Shanghai 200433, China
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Ambriz-Peláez O, Álvarez-Contreras L, Guerra-Balcázar M, Ledesma-García J, Arriaga LG, Arjona N. Synthesis of a Small Amorphous PdMo/C Nanocatalyst and Pd Nanocubes Enclosed within (100) Planes and Their Use for Ethylene Glycol Electro-oxidation. ChemElectroChem 2017. [DOI: 10.1002/celc.201600856] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Oscar Ambriz-Peláez
- Subdirección de Ciencia y Tecnología; Centro de Investigación y Desarrollo Tecnológico en Electroquímica; Unidad Tijuana; Consorcio Tecnológico Baja California; Carr. Tijuana-Tecate Km. 26.5 Tijuana, B.C., C. P. 22444 México
| | - Lorena Álvarez-Contreras
- Centro de Investigación en Materiales Avanzados; Complejo Industrial Chihuahua; Chihuahua, C.P. 31136 México
| | - Minerva Guerra-Balcázar
- División de Investigación y Posgrado, Facultad de Ingeniería; Universidad Autónoma de Querétaro; Querétaro, C.P. 76010 México
| | - Janet Ledesma-García
- División de Investigación y Posgrado, Facultad de Ingeniería; Universidad Autónoma de Querétaro; Querétaro, C.P. 76010 México
| | - Luis Gerardo Arriaga
- Centro de Investigación y Desarrollo Tecnológico en Electroquímica; Parque Tecnológico Querétaro S/N, Sanfandila; Pedro Escobedo C.P. 76703 México
| | - Noé Arjona
- Subdirección de Ciencia y Tecnología; Centro de Investigación y Desarrollo Tecnológico en Electroquímica; Unidad Tijuana; Consorcio Tecnológico Baja California; Carr. Tijuana-Tecate Km. 26.5 Tijuana, B.C., C. P. 22444 México
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50
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Oezaslan M, Herrmann AK, Werheid M, Frenkel AI, Nachtegaal M, Dosche C, Laugier Bonnaud C, Yilmaz HC, Kühn L, Rhiel E, Gaponik N, Eychmüller A, Schmidt TJ. Structural Analysis and Electrochemical Properties of Bimetallic Palladium-Platinum Aerogels Prepared by a Two-Step Gelation Process. ChemCatChem 2017. [DOI: 10.1002/cctc.201600667] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Mehtap Oezaslan
- Paul Scherrer Institut; CH-5232 Villigen PSI Switzerland
- Physical Chemistry; Carl von Ossietzky University of Oldenburg; 26111 Oldenburg Germany
| | | | | | - Anatoly I. Frenkel
- Department of Materials Science and Chemical Engineering; Stony Brook University; Stony Brook NY 11794 USA
| | | | - Carsten Dosche
- Physical Chemistry; Carl von Ossietzky University of Oldenburg; 26111 Oldenburg Germany
| | - Céline Laugier Bonnaud
- Paul Scherrer Institut; CH-5232 Villigen PSI Switzerland
- Present address: AlpesLaboratoire O'Electrochimie et de Physico-chimie des Matériaux et des Interfaces; University of Grenoble; 38000 Grenoble France
| | - Hale Ceren Yilmaz
- Paul Scherrer Institut; CH-5232 Villigen PSI Switzerland
- Present address: Laboratory of Inorganic Chemistry; ETH Zurich; 8093 Zurich Switzerland
| | - Laura Kühn
- Physical Chemistry; TU Dresden; 01062 Dresden Germany
| | - Erhard Rhiel
- Light and Electron Microscopy Service Unit of the School of Mathematics and Science; Carl von Ossietzky University of Oldenburg; 26111 Oldenburg Germany
| | | | | | - Thomas Justus Schmidt
- Paul Scherrer Institut; CH-5232 Villigen PSI Switzerland
- Laboratory of Physical Chemistry; ETH Zurich; 8093 Zurich Switzerland
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