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Xu Y, Zhang L, Chen W, Cui H, Cai J, Chen Y, Feliu JM, Herrero E. Boosting Oxygen Reduction at Pt(111)|Proton Exchange Ionomer Interfaces through Tuning the Microenvironment Water Activity. ACS APPLIED MATERIALS & INTERFACES 2024; 16:4540-4549. [PMID: 38227931 DOI: 10.1021/acsami.3c14208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
A proton exchange ionomer is one of the most important components in membrane electrode assemblies (MEAs) of polymer electrolyte membrane fuel cells (PEMFCs). It acts as both a proton conductor and a binder for nanocatalysts and carbon supports. The structure and the wetting conditions of the MEAs have a great impact on the microenvironment at the three-phase interphases in the MEAs, which can significantly influence the electrode kinetics such as the oxygen reduction reaction (ORR) at the cathode. Herein, by using the Pt(111)|X ionomer interface as a model system (X = Nafion, Aciplex, D72), we find that higher drying temperature lowers the onset potential for sulfonate adsorption and reduces apparent ORR current, while the current wave for OHad formation drops and shifts positively. Surprisingly, the intrinsic ORR activity is higher after properly correcting the blocking effect of Pt active sites by sulfonate adsorption and the poly(tetrafluoroethylene) (PTFE) skeleton. These results are well explained by the reduced water activity at the interfaces induced by the ionomer/PTFE, according to the mixed potential effect. Implications for how to prepare MEAs with improved ORR activity are provided.
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Affiliation(s)
- Yujun Xu
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Lulu Zhang
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - 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
| | - Haowen Cui
- 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
| | - Yanxia Chen
- Hefei National Research Center for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
| | - Juan M Feliu
- Instituto de Electroquímica, Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
| | - Enrique Herrero
- Instituto de Electroquímica, Universidad de Alicante, Apdo. 99, Alicante E-03080, Spain
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2
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Xu J, Feng K, Lu C, Wang X, Chen J, Wang Z, Zhong J, Huang Y, Sham TK. Atomically Dispersed Mg-N-C Material Supported Highly Crystalline Pt 3Mg Nanoalloys for Efficient Oxygen Reduction Reaction. J Phys Chem Lett 2023; 14:8296-8305. [PMID: 37681643 DOI: 10.1021/acs.jpclett.3c01870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Single-atom or atomically dispersed metal materials have emerged as highly efficient catalysts, but their potential as excellent supports has rarely been reported. In this work, we prepared Mg-N-C materials derived from annealing of a Mg-based metal-organic framework (MOF). By introducing Pt, Mg-N-C not only serves as a platform for anchoring Pt nanoparticles but also facilitates the integration of Mg into the Pt face-centered cubic lattice, resulting in the formation of highly crystalline Pt3Mg nanoalloys via the metal-support interfacial interaction. Synchrotron radiation-based X-ray absorption spectroscopy (XAS) enables us to study the interfacial interaction and the surface electronic structure of this intricate system. The formation of Pt3Mg nanoalloys induces a downshift of the Pt d-band (gaining d-charge), as revealed by the decrease in the Pt L3-edge white-line (WL) area under the curve. This downshift can weaken the binding of oxygen reduction reaction (ORR) intermediates, hence improving the ORR performance.
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Affiliation(s)
- Jiabin Xu
- Department of Chemistry, and Soochow-Western Centre for Synchrotron Radiation Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, and Soochow-Western Centre for Synchrotron Radiation Research, Soochow University, Suzhou 215123, China
| | - Kun Feng
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, and Soochow-Western Centre for Synchrotron Radiation Research, Soochow University, Suzhou 215123, China
| | - Cheng Lu
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, and Soochow-Western Centre for Synchrotron Radiation Research, Soochow University, Suzhou 215123, China
| | - Xuchun Wang
- Department of Chemistry, and Soochow-Western Centre for Synchrotron Radiation Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Jiatang Chen
- Department of Chemistry, and Soochow-Western Centre for Synchrotron Radiation Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Zhiqiang Wang
- Department of Chemistry, and Soochow-Western Centre for Synchrotron Radiation Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Jun Zhong
- Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, and Soochow-Western Centre for Synchrotron Radiation Research, Soochow University, Suzhou 215123, China
| | - Yining Huang
- Department of Chemistry, and Soochow-Western Centre for Synchrotron Radiation Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
| | - Tsun-Kong Sham
- Department of Chemistry, and Soochow-Western Centre for Synchrotron Radiation Research, The University of Western Ontario, London, Ontario N6A 5B7, Canada
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3
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Cao L, Mueller T. Catalytic Activity Maps for Alloy Nanoparticles. J Am Chem Soc 2023; 145:7352-7360. [PMID: 36973003 DOI: 10.1021/jacs.2c13607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
To enable rational design of alloy nanoparticle catalysts, we develop an approach to generate catalytic activity maps of alloy nanoparticles on a grid of particle size and composition. The catalytic activity maps are created by using a quaternary cluster expansion to explicitly predict adsorbate binding energies on alloy nanoparticles of varying shape, size, and atomic order while accounting for interactions among the adsorbates. This cluster expansion is used in kinetic Monte Carlo simulations to predict activated nanoparticle structures and turnover frequencies on all surface sites. We demonstrate our approach on Pt-Ni octahedral nanoparticle catalysts for the oxygen reduction reaction (ORR), revealing that the specific activity is predicted to be optimized at an edge length of larger than 5.5 nm and a composition of about Pt0.85Ni0.15 and the mass activity is predicted to be optimized at an edge length of 3.3-3.8 nm and a composition of about Pt0.8Ni0.2.
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4
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Zhang XL, Hu SJ, Wang YH, Shi L, Yang Y, Gao MR. Plasma-Assisted Synthesis of Metal Nitrides for an Efficient Platinum-Group-Metal-Free Anion-Exchange-Membrane Fuel Cell. NANO LETTERS 2023; 23:107-115. [PMID: 36541945 DOI: 10.1021/acs.nanolett.2c03707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In comparison to the well-developed proton-exchange-membrane fuel cells, anion-exchange-membrane fuel cells (AEMFCs) permit adoption of platinum-group-metal (PGM)-free catalysts due to the alkaline environment, giving a substantial cost reduction. However, previous AEMFCs have generally shown unsatisfactory performances due to the lack of effective PGM-free catalysts that can endure harsh fuel cell conditions. Here we report a plasma-assisted synthesis of high-quality nickel nitride (Ni3N) and zirconium nitride (ZrN) employing dinitrogen as the nitrogen resource, exhibiting exceptional catalytic performances toward hydrogen oxidation and oxygen reduction in an alkaline enviroment, respectively. A PGM-free AEMFC assembled by using Ni3N as the anode and ZrN as the cathode delivers power densities of 256 mW cm-2 under an H2-O2 condition and 151 mW cm-2 under an H2-air condition. Furthermore, the fuel cell shows no evidence of degradation after 25 h of operation. This work creates opportunities for developing high-performance and durable AEMFCs based on metal nitrides.
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Affiliation(s)
- Xiao-Long Zhang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Shao-Jin Hu
- Department of Chemical Physics, Division of Theoretical and Computational Sciences, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Ye-Hua Wang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Lei Shi
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Yu Yang
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Min-Rui Gao
- Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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5
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Huang J, Sementa L, Liu Z, Barcaro G, Feng M, Liu E, Jiao L, Xu M, Leshchev D, Lee SJ, Li M, Wan C, Zhu E, Liu Y, Peng B, Duan X, Goddard WA, Fortunelli A, Jia Q, Huang Y. Experimental Sabatier plot for predictive design of active and stable Pt-alloy oxygen reduction reaction catalysts. Nat Catal 2022. [DOI: 10.1038/s41929-022-00797-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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6
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Chen Y, Zheng X, Cai J, Zhao G, Zhang B, Luo Z, Wang G, Pan H, Sun W. Sulfur Doping Triggering Enhanced Pt–N Coordination in Graphitic Carbon Nitride-Supported Pt Electrocatalysts toward Efficient Oxygen Reduction Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00944] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yaping Chen
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, P. R. China
| | - Jinyan Cai
- Hefei National Laboratory for Physical Science at Microscale and Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Guoqiang Zhao
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Bingxing Zhang
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zhouxin Luo
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Gongming Wang
- Hefei National Laboratory for Physical Science at Microscale and Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Hongge Pan
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
- Institute of Science and Technology for New Energy, Xi’an Technological University, Xi’an 710021, P. R. China
| | - Wenping Sun
- School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
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7
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Mikkelsen AEG, Kristoffersen HH, Schiøtz J, Vegge T, Hansen HA, Jacobsen KW. Structure and energetics of liquid water-hydroxyl layers on Pt(111). Phys Chem Chem Phys 2022; 24:9885-9890. [PMID: 35416202 DOI: 10.1039/d2cp00190j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interactions between liquid water and hydroxyl species on Pt(111) surfaces have been intensely investigated due to their importance to fuel cell electrocatalysis. Here we present a molecular dynamics study of their structure and energetics using an ensemble of neural network potentials, which allow us to obtain unprecedented statistical sampling. We first study the energetics of hydroxyl formation, where we find a near-linear adsorption energy profile, which exhibits a soft and gradual increase in the differential adsorption energy at high hydroxyl coverages. This is strikingly different from the predictions of the conventional bilayer model, which displays a kink at 1/3ML OH coverage indicating a sizeable jump in differential adsorption energy, but within the statistical uncertainty of previously reported ab initio molecular dynamics studies. We then analyze the structure of the interface, where we provide evidence for the water-OH/Pt(111) interface being hydrophobic at high hydroxyl coverages. We furthermore explain the observed adsorption energetics by analyzing the hydrogen bonding in the water-hydroxyl adlayers, where we argue that the increase in differential adsorption energy at high OH coverage can be explained by a reduction in the number of hydrogen bonds from the adsorbed water molecules to the hydroxyls.
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Affiliation(s)
- August E G Mikkelsen
- Department of Energy Conversion and Storage, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | | | - Jakob Schiøtz
- CAMD, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Tejs Vegge
- Department of Energy Conversion and Storage, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Heine A Hansen
- Department of Energy Conversion and Storage, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
| | - Karsten W Jacobsen
- CAMD, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
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8
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Sakaushi K, Watanabe A, Kumeda T, Shibuta Y. Fast-Decoding Algorithm for Electrode Processes at Electrified Interfaces by Mean-Field Kinetic Model and Bayesian Data Assimilation: An Active-Data-Mining Approach for the Efficient Search and Discovery of Electrocatalysts. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22889-22902. [PMID: 35135188 DOI: 10.1021/acsami.1c21038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The microscopic origins of the activity and selectivity of electrocatalysts has been a long-lasting enigma since the 19th century. By applying an active-data-mining approach, employing a mean-field kinetic model and a statistical approach of Bayesian data assimilation, we demonstrate here a fast decoding to extract key properties in the kinetics of complicated electrode processes from current-potential profiles in experimental and literary data. As the proof-of-concept, kinetic parameters on the four-electron oxygen reduction reaction in the 0.1 M HClO4 solution (ORR: O2 + 4e- + 4H+ → 2H2O) of various platinum-based single-crystal electrocatalysts are extracted from our own experiments and third-party literature to investigate the microscopic electrode processes. Furthermore, data assimilation of the mean-field ORR model and experimental data is performed based on Bayesian inference for the inductive estimation of kinetic parameters, which sheds light on the dynamic behavior of kinetic parameters with respect to overpotential. This work shows that a fast-decoding algorithm based on a mean-field kinetic model and Bayesian data assimilation is a promising data-driven approach to extract key microscopic features of complicated electrode processes and therefore will be an important method toward building up advanced human-machine collaborations for the efficient search and discovery of high-performance electrochemical materials.
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Affiliation(s)
- Ken Sakaushi
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Aoi Watanabe
- Department of Materials Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tomoaki Kumeda
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Yasushi Shibuta
- Department of Materials Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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9
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Saidi WA. Optimizing the Catalytic Activity of Pd-Based Multinary Alloys toward Oxygen Reduction Reaction. J Phys Chem Lett 2022; 13:1042-1048. [PMID: 35073105 DOI: 10.1021/acs.jpclett.1c04128] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The development of cost-effective catalysts for oxygen reduction reaction (ORR) has an enormous impact on fuel cells toward highly efficient low emission energy conversion. Recently, a Pt-free multinary PdAuAgTi alloy was discovered with excellent ORR activity and low overpotential close to that of Pt. To rationalize the experimental results, a model based on first-principles methods accelerated with deep learning is developed to rapidly compute and with high fidelity the *OH adsorption energy on the alloyed surface. The ensemble-average *OH adsorption energy is shown to explain the experimentally reported OER activities of PdAuAgTi and further is utilized to provide precise maps of the catalytic activity in the total composition space. Notably, the ORR activity of PdAuAgTi is found to be optimum in a narrow region of the composition space with 8-12 at. % Ti, which agrees with the experimental finding for enhanced ORR activity at 11-13 at. % Ti. In addition, replacing Au and Ag with the more cost-effective elements Cu and Zn is also shown to yield optimum catalysts for ORR. The current study shows that first-principles methods in conjunction with machine learning approaches are an effective tool for discovering multinary alloy systems for catalytic applications.
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Affiliation(s)
- Wissam A Saidi
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
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10
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Zhang L, Cai J, Chen Y, Huang J. Modelling electrocatalytic reactions with a concerted treatment of multistep electron transfer kinetics and local reaction conditions. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33. [PMID: 34525456 DOI: 10.1088/1361-648x/ac26fb] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 09/15/2021] [Indexed: 05/17/2023]
Abstract
A physicochemical model is developed for electrocatalytic reactions involving multiple electron transfer steps occurring in the electric double layer (EDL). The local reaction conditions are calculated using a mean-field EDL model, which is derived from a comprehensive grand potential that considers the steric effects, solvent polarization, and chemisorption-induced surface dipoles. Macroscopic mass transport in the so-called diffusion layer is controlled by the same set of controlling equations of the EDL model, without imposing the electroneutrality assumption as usual. The Gerischer's formulation of electron transfer theory, corrected with local reaction conditions, is used to describe the kinetics of elementary steps. Multistep kinetics of the electrocatalytic reaction is treated using microkinetics modelling, without resorting to the usual rate-determining step approximation. In formal analysis of the model, we retrieve canonical models with additional assumptions. Self-consistent numerical implementation of the model is demonstrated for oxygen reduction reaction (ORR) at Pt(111) in acidic solution, and the aptness of the model is verified by comparison with experimental data. A comparative study of the full model and its simplified versions allows us to examine how the ORR is influenced by asymmetric steric effects, finite concentration of ions, solvent polarization, surface charge effects, and metal electronic structure effects. We find that the difference in terms of the overpotential between the full model and the simplest model can be up to ∼0.1 V at a current density of -6 mAcm-2.
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Affiliation(s)
- Lulu Zhang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Jun Cai
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Yanxia Chen
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - Jun Huang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People's Republic of China
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11
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Li H, Wang KW, Hu A, Chou JP, Chen TY. Tri-atomic Pt clusters induce effective pathways in a Co core-Pd shell nanocatalyst surface for a high-performance oxygen reduction reaction. Phys Chem Chem Phys 2021; 23:18012-18025. [PMID: 34612275 DOI: 10.1039/d1cp01989a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The crux of the hot topic concerning the widespread replacement of fuel cells (FCs) with traditional petrochemical energy is to balance improving the oxygen reduction reaction (ORR) and reducing the cost. The present study employs density functional theory (DFT) to investigate the effect of Pt ensemble size regulation from a single atom to full coverage on the physio-chemical properties, oxygen adsorption energies and overall ORR efficiency of bimetallic nanocatalysts (NCs) with a Cocore-Pdshell structure. Our results reveal that the electronegativity difference and lattice strain between neighboring heteroatoms are enhanced to trigger a synergetic effect in local domains, with the Pt cluster size reduced from nanometers to subnanometers. They induce a directed and tunable charge relocation mechanism from deep Co to topmost Pt to optimize the adsorption energies of O2/O* and achieve excellent ORR kinetics performance with minimum Pt usage but maximum Pt atom utilization (i.e., Pt1 to Pt3) compared with benchmark Pt(111). Such a dependency between the cluster size and corresponding ORR performance for the established Co@Pd-Ptn system can be applied to accurately guide the experimental synthesis of ordered heterogeneous catalysts (e.g., other core@shell-clusters structures) toward low Pt, high efficiency and green economy.
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Affiliation(s)
- Haolin Li
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, China.
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12
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Kostuch A, Rutkowska IA, Dembinska B, Wadas A, Negro E, Vezzù K, Di Noto V, Kulesza PJ. Enhancement of Activity and Development of Low Pt Content Electrocatalysts for Oxygen Reduction Reaction in Acid Media. Molecules 2021; 26:molecules26175147. [PMID: 34500578 PMCID: PMC8434571 DOI: 10.3390/molecules26175147] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/12/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022] Open
Abstract
Platinum is a main catalyst for the electroreduction of oxygen, a reaction of primary importance to the technology of low-temperature fuel cells. Due to the high cost of platinum, there is a need to significantly lower its loadings at interfaces. However, then O2-reduction often proceeds at a less positive potential, and produces higher amounts of undesirable H2O2-intermediate. Hybrid supports, which utilize metal oxides (e.g., CeO2, WO3, Ta2O5, Nb2O5, and ZrO2), stabilize Pt and carbon nanostructures and diminish their corrosion while exhibiting high activity toward the four-electron (most efficient) reduction in oxygen. Porosity of carbon supports facilitates dispersion and stability of Pt nanoparticles. Alternatively, the Pt-based bi- and multi-metallic catalysts, including PtM alloys or M-core/Pt-shell nanostructures, where M stands for certain transition metals (e.g., Au, Co, Cu, Ni, and Fe), can be considered. The catalytic efficiency depends on geometric (decrease in Pt-Pt bond distances) and electronic (increase in d-electron vacancy in Pt) factors, in addition to possible metal-support interactions and interfacial structural changes affecting adsorption and activation of O2-molecules. Despite the stabilization of carbons, doping with heteroatoms, such as sulfur, nitrogen, phosphorus, and boron results in the formation of catalytically active centers. Thus, the useful catalysts are likely to be multi-component and multi-functional.
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Affiliation(s)
- Aldona Kostuch
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland; (A.K.); (I.A.R.); (B.D.); (A.W.)
| | - Iwona A. Rutkowska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland; (A.K.); (I.A.R.); (B.D.); (A.W.)
| | - Beata Dembinska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland; (A.K.); (I.A.R.); (B.D.); (A.W.)
| | - Anna Wadas
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland; (A.K.); (I.A.R.); (B.D.); (A.W.)
| | - Enrico Negro
- Department of Industrial Engineering, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy; (E.N.); (K.V.); (V.D.N.)
| | - Keti Vezzù
- Department of Industrial Engineering, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy; (E.N.); (K.V.); (V.D.N.)
| | - Vito Di Noto
- Department of Industrial Engineering, Università degli Studi di Padova, Via Marzolo 1, 35131 Padova, Italy; (E.N.); (K.V.); (V.D.N.)
| | - Pawel J. Kulesza
- Faculty of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland; (A.K.); (I.A.R.); (B.D.); (A.W.)
- Correspondence: ; Tel.: +48-2255-26-344
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13
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Strain and ligand effects in Pt-Ni alloys studied by valence-to-core X-ray emission spectroscopy. Sci Rep 2021; 11:13698. [PMID: 34211031 PMCID: PMC8249455 DOI: 10.1038/s41598-021-93068-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/14/2021] [Indexed: 12/04/2022] Open
Abstract
Experimental detection of the Pt 5d densities of states in the valence band is conducted on a series of Pt-Ni alloys by high energy resolution valence-to-core X-ray emission spectroscopy (VTC-XES) at the Pt L3-edge. VTC-XES measurements reveal that the Pt d-band centroid shifts away from the Fermi level upon dilution, accompanied by concentration-dependent Pt d-band width. The competition between the strain effect and ligand effect is observed experimentally for the first time. It is found that the d-band widths in Pt3Ni and PtNi are broader than that of Pt metal due to compressive strain which overcompensates the effect of dilution, while it is narrower in PtNi3 where the ligand effect dominates. VTC-XES is demonstrated to be a powerful tool to study the Pt d-band contribution to the valence band of Pt-based bimetallic. The implication for the enhanced activity of Pt-Ni catalysts in oxygen reduction reaction is discussed.
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Abstract
Aqueous electrolytes are the leading candidate to meet the surging demand for safe and low-cost storage batteries. Aqueous electrolytes facilitate more sustainable battery technologies due to the attributes of being nonflammable, environmentally benign, and cost effective. Yet, water's narrow electrochemical stability window remains the primary bottleneck for the development of high-energy aqueous batteries with long cycle life and infallible safety. Water's electrolysis leads to either hydrogen evolution reaction (HER) or oxygen evolution reaction (OER), which causes a series of dire consequences, including poor Coulombic efficiency, short device longevity, and safety issues. These are often showstoppers of a new aqueous battery technology besides the low energy density. Prolific progress has been made in the understanding of HER and OER from both catalysis and battery fields. Unfortunately, a systematic review on these advances from a battery chemistry standpoint is lacking. This review provides in-depth discussions on the mechanisms of water electrolysis on electrodes, where we summarize the critical influencing factors applicable for a broad spectrum of aqueous battery systems. Recent progress and existing challenges on suppressing water electrolysis are discussed, and our perspectives on the future development of this field are provided.
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Affiliation(s)
- Yiming Sui
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331-4003, United States
| | - Xiulei Ji
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331-4003, United States
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Sun J, Hou Y, Wang X, Kou T, Liu N, Zhang R, Zhang Z. Three-dimensional mesoporous PtM (M = Co, Cu, Ni) nanowire catalysts with high-performance towards methanol electro-oxidation reaction and oxygen reduction reaction. RSC Adv 2021; 11:14970-14979. [PMID: 35424024 PMCID: PMC8697853 DOI: 10.1039/d1ra01072g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/03/2021] [Indexed: 01/16/2023] Open
Abstract
Alloying with transition elements is proven to be an effective way to improve the methanol electro-oxidation reaction (MOR) and oxygen reduction reaction (ORR) activities of Pt catalysts for direct methanol fuel cells (DMFCs). Through a process of rapid solidification and two-step dealloying, we have successfully fabricated three-dimensional mesoporous PtM (M = Co, Cu, Ni) nanowire catalysts, which show much enhanced electrocatalytic properties towards MOR and ORR in comparison with the commercial Pt/C catalyst. Electrochemical tests indicate that alloying with Cu presents the best ORR activities, the half-wave potential of which is 42 mV positively shifted compared with the commercial Pt/C (0.892 V vs. RHE). Meanwhile, the PtM nanowire catalysts also possess good CO tolerance as well as stability for 10 000 cycles of cyclic voltammetry scanning. This convenient preparation method is promising for the development of high performance electrocatalysts for MOR and ORR in DMFCs.
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Affiliation(s)
- Junzhe Sun
- School of Materials and Chemical Engineering, Zhongyuan University of Technology Zhengzhou 450007 P. R. China
| | - Yubo Hou
- School of Materials and Chemical Engineering, Zhongyuan University of Technology Zhengzhou 450007 P. R. China
| | - Xuetao Wang
- School of Materials and Chemical Engineering, Zhongyuan University of Technology Zhengzhou 450007 P. R. China
| | - Tianyi Kou
- Department of Chemistry and Biochemistry, University of California Santa Cruz California 95064 USA
| | - Na Liu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University Jingshi Road 17923 Jinan 250061 P. R. China
| | - Ruijie Zhang
- School of Materials and Chemical Engineering, Zhongyuan University of Technology Zhengzhou 450007 P. R. China
| | - Zhonghua Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University Jingshi Road 17923 Jinan 250061 P. R. China
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16
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Huang X, Wang J, Gao J, Zhang Z, Gan LY, Xu H. Structural Evolution and Underlying Mechanism of Single-Atom Centers on Mo 2C(100) Support during Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:17075-17084. [PMID: 33787216 DOI: 10.1021/acsami.1c01477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The single-metal atoms coordinating with the surface atoms of the support constitute the active centers of as-prepared single-atom catalysts (SACs). However, under hash electrochemical conditions, (1) supports' surfaces may experience structural change, which turn to be distinct from those at ambient conditions; (2) during catalysis, the dynamic responses of a single atom to the attack of reaction intermediates likely change the coordination environment of a single atom. These factors could alter the performance of SACs. Herein, we investigate these issues using Mo2C(100)-supported single transition-metal (TM) atoms as model SACs toward catalyzing the oxygen reduction reaction (ORR). It is found that the Mo2C(100) surface is oxidized under ORR turnover conditions, resulting in significantly weakened bonding between single TM atoms and the Mo2C(100) surface (TM@Mo2C(100)_O* term for SAC). While the intermediate in 2 e- ORR does not change the local structures of the active centers in these SACs, the O* intermediate emerging in 4 e- ORR can damage Rh@ and Cu@Mo2C(100)_O*. Furthermore, on the basis of these findings, we propose Pt@Mo2C(100)_O* as a qualified ORR catalyst, which exhibits extraordinary 4 e- ORR activity with an overpotential of only 0.33 V, surpassing the state-of-the-art Pt(111), and thus being identified as a promising alternative to the commercial Pt/C catalyst.
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Affiliation(s)
- Xiang Huang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jiong Wang
- Institute of Advanced Synthesis (IAS), School of Chemistry and Chemical Engineering, Northwestern Polytechnical University (NPU), Xi'an 710072, China
- Yangtze River Delta Research Institute of NPU, Taicang Jiangsu, 215400, China
| | - Jiajian Gao
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore
| | - Zhe Zhang
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
| | - Li-Yong Gan
- Institute for Structure and Function and Department of Physics, Chongqing University, Chongqing 400030, China
| | - Hu Xu
- Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Guangdong Provincial Key Laboratory of Computational Science and Material Design, Southern University of Science and Technology, Shenzhen 518055, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China
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17
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Haid RW, Kluge RM, Liang Y, Bandarenka AS. In Situ Quantification of the Local Electrocatalytic Activity via Electrochemical Scanning Tunneling Microscopy. SMALL METHODS 2021; 5:e2000710. [PMID: 34927879 DOI: 10.1002/smtd.202000710] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/10/2020] [Indexed: 06/14/2023]
Abstract
Identification of catalytically active sites at solid/liquid interfaces under reaction conditions is an essential task to improve the catalyst design for sustainable energy devices. Electrochemical scanning tunneling microscopy (EC-STM) combines the control of the surface reactions with imaging on a nanoscale. When performing EC-STM under reaction conditions, the recorded analytical signal shows higher fluctuations (noise) at active sites compared to non-active sites (noise-EC-STM or n-EC-STM). In the past, this approach has been proven as a valid tool to identify the location of active sites. In this work, the authors show that this method can be extended to obtain quantitative information of the local activity. For the platinum(111) surface under oxygen reduction reaction conditions, a linear relationship between the STM noise level and a measure of reactivity, the turn-over frequency is found. Since it is known that the most active sites for this system are located at concave sites, the method has been applied to quantify the activity at steps. The obtained activity enhancement factors appeared to be in good agreement with the literature. Thus, n-EC-STM is a powerful method not only to in situ identify the location of active sites but also to determine and compare local reactivity.
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Affiliation(s)
- Richard W Haid
- Department of Physics (ECS), Technical University of Munich, James-Franck-Straße 1, Garching, 85748, Germany
| | - Regina M Kluge
- Department of Physics (ECS), Technical University of Munich, James-Franck-Straße 1, Garching, 85748, Germany
| | - Yunchang Liang
- Department of Physics (ECS), Technical University of Munich, James-Franck-Straße 1, Garching, 85748, Germany
| | - Aliaksandr S Bandarenka
- Department of Physics (ECS), Technical University of Munich, James-Franck-Straße 1, Garching, 85748, Germany
- Catalysis Research Center TUM, Ernst-Otto-Fischer-Straße 1, Garching, 85748, Germany
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18
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Li H, Dai S, Bhalothia D, Chou JP, Hu A, Chen TY. Collaboration between a Pt-dimer and neighboring Co-Pd atoms triggers efficient pathways for oxygen reduction reaction. Phys Chem Chem Phys 2021; 23:1822-1834. [PMID: 33393548 DOI: 10.1039/d0cp05205a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The development of electrocatalysts with reconcilable balance between the cost and performance in oxygen reduction reaction (ORR) is an imperative task for the widespread adoption of fuel cell technology. In this study, we proposed a unique model of diatomic Pt-cluster (Pt-dimer) in the topmost layer of the Co/Pd bimetallic slab (Co@Pd-Pt2) for mimicking the Cocore@Pdshell nanocatalysts (NCs) surface and systematically investigating its local-regional collaboration pathways in ORR by density functional theory (DFT). The results demonstrate that the Pt-dimer produces local differentiation from both ligand and geometric effects on the Co@Pd surface, which forms adsorption energy (Eads) gradients for relocating the ORR-adsorbates. Our calculations for Eads-variations of ORR-species, reaction coordinates, and intraparticle charge injection propose and confirm a novel local synergetic collaboration around the Pt-dimer in the Co@Pd-Pt2 system with the best-performing ORR behavior compared with all reference models. With proper selection of the composition in intraparticle components, the proposed DFT assessments could be adopted for developing economical and high-performance catalysts in various heterogeneous reactions.
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Affiliation(s)
- Haolin Li
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, China.
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19
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Lochner T, Perchthaler M, Hnyk F, Sick D, Sabawa JP, Bandarenka AS. Analysis of the Capacitive Behavior of Polymer Electrolyte Membrane Fuel Cells during Operation. ChemElectroChem 2021. [DOI: 10.1002/celc.202001146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tim Lochner
- BMW Group 80809 München Germany
- Physik-Department ECS Technische Universität München James-Franck-Str. 1 85748 Garching Germany
| | | | | | | | | | - Aliaksandr S. Bandarenka
- Physik-Department ECS Technische Universität München James-Franck-Str. 1 85748 Garching Germany
- Catalysis Research Center Technical University of Munich Ernst-Otto-Fischer-Str. 1 85748 Garching Germany
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20
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Luo F, Roy A, Silvioli L, Cullen DA, Zitolo A, Sougrati MT, Oguz IC, Mineva T, Teschner D, Wagner S, Wen J, Dionigi F, Kramm UI, Rossmeisl J, Jaouen F, Strasser P. P-block single-metal-site tin/nitrogen-doped carbon fuel cell cathode catalyst for oxygen reduction reaction. NATURE MATERIALS 2020; 19:1215-1223. [PMID: 32661387 DOI: 10.1038/s41563-020-0717-5] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/25/2020] [Indexed: 05/22/2023]
Abstract
This contribution reports the discovery and analysis of a p-block Sn-based catalyst for the electroreduction of molecular oxygen in acidic conditions at fuel cell cathodes; the catalyst is free of platinum-group metals and contains single-metal-atom actives sites coordinated by nitrogen. The prepared SnNC catalysts meet and exceed state-of-the-art FeNC catalysts in terms of intrinsic catalytic turn-over frequency and hydrogen-air fuel cell power density. The SnNC-NH3 catalysts displayed a 40-50% higher current density than FeNC-NH3 at cell voltages below 0.7 V. Additional benefits include a highly favourable selectivity for the four-electron reduction pathway and a Fenton-inactive character of Sn. A range of analytical techniques combined with density functional theory calculations indicate that stannic Sn(IV)Nx single-metal sites with moderate oxygen chemisorption properties and low pyridinic N coordination numbers act as catalytically active moieties. The superior proton-exchange membrane fuel cell performance of SnNC cathode catalysts under realistic, hydrogen-air fuel cell conditions, particularly after NH3 activation treatment, makes them a promising alternative to today's state-of-the-art Fe-based catalysts.
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Affiliation(s)
- Fang Luo
- Department of Chemistry, The Electrochemical Energy, Catalysis and Material Science Laboratory, Chemical Engineering Division, Technical University Berlin, Berlin, Germany
| | - Aaron Roy
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - Luca Silvioli
- Nano-Science Center, Department of Chemistry, University Copenhagen, Copenhagen, Denmark
- Seaborg Technologies, Copenhagen, Denmark
| | - David A Cullen
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - Andrea Zitolo
- Synchrotron SOLEIL, L'orme des Merisiers, BP 48, Saint Aubin, Gif-sur-Yvette, France
| | | | | | - Tzonka Mineva
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - Detre Teschner
- The Fritz-Haber-Institute der Max-Planck-Gesellschaft, Inorganic Chemistry-Electronic Structure Group, Berlin, Germany
- Department of Heterogeneous Reaction, Max-Planck-Institute for Chemical Energy Conversion, Berlin, Germany
| | - Stephan Wagner
- Department of Chemistry and Department of Materials and Earth Sciences, Graduate School of Excellence Energy Science and Engineering, Technical University Darmstadt, Darmstadt, Germany
| | - Ju Wen
- Department of Chemistry, The Electrochemical Energy, Catalysis and Material Science Laboratory, Chemical Engineering Division, Technical University Berlin, Berlin, Germany
| | - Fabio Dionigi
- Department of Chemistry, The Electrochemical Energy, Catalysis and Material Science Laboratory, Chemical Engineering Division, Technical University Berlin, Berlin, Germany
| | - Ulrike I Kramm
- Department of Chemistry and Department of Materials and Earth Sciences, Graduate School of Excellence Energy Science and Engineering, Technical University Darmstadt, Darmstadt, Germany
| | - Jan Rossmeisl
- Nano-Science Center, Department of Chemistry, University Copenhagen, Copenhagen, Denmark.
| | | | - Peter Strasser
- Department of Chemistry, The Electrochemical Energy, Catalysis and Material Science Laboratory, Chemical Engineering Division, Technical University Berlin, Berlin, Germany.
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21
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Kim HY, Kwon T, Ha Y, Jun M, Baik H, Jeong HY, Kim H, Lee K, Joo SH. Intermetallic PtCu Nanoframes as Efficient Oxygen Reduction Electrocatalysts. NANO LETTERS 2020; 20:7413-7421. [PMID: 32924501 DOI: 10.1021/acs.nanolett.0c02812] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoframe alloy structures represent a class of high-performance catalysts for the oxygen reduction reaction (ORR), owing to their high active surface area, efficient molecular accessibility, and nanoconfinement effect. However, structural and chemical instabilities of nanoframes remain an important challenge. Here, we report the synthesis of PtCu nanoframes constructed with an atomically ordered intermetallic structure (O-PtCuNF/C) showing high ORR activity, durability, and chemical stability. We rationally designed the O-PtCuNF/C catalyst by combining theoretical composition predictions with a silica-coating-mediated synthesis. The O-PtCuNF/C combines intensified strain and ligand effects from the intermetallic PtCu L11 structure and advantages of the nanoframes, resulting in superior ORR activity to disordered alloy PtCu nanoframes (D-PtCuNF/C) and commercial Pt/C catalysts. Importantly, the O-PtCuNF/C showed the highest ORR mass activity among PtCu-based catalysts. Furthermore, the O-PtCuNF/C exhibited higher ORR durability and far less etching of constituent atoms than D-PtCuNF/C and Pt/C, attesting to the chemically stable nature of the intermetallic structure.
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Affiliation(s)
- Ho Young Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Taehyun Kwon
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Yoonhoo Ha
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Daejeon 34141, Republic of Korea
| | - Minki Jun
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Hionsuck Baik
- Seoul Center, Korea Basic Science Institute, Seoul 02841, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Daejeon 34141, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Sang Hoon Joo
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
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22
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Jasim AM, Xu G, Al‐Salihi S, Xing Y. Dense Niobium Oxide Coating on Carbon Black as a Support to Platinum Electrocatalyst for Oxygen Reduction. ChemistrySelect 2020. [DOI: 10.1002/slct.202003225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ahmed M. Jasim
- Department of Biomedical, Biological and Chemical Engineering University of Missouri Columbia, MO USA
| | - Gan Xu
- Department of Biomedical, Biological and Chemical Engineering University of Missouri Columbia, MO USA
| | - Sara Al‐Salihi
- Department of Biomedical, Biological and Chemical Engineering University of Missouri Columbia, MO USA
| | - Yangchuan Xing
- Department of Biomedical, Biological and Chemical Engineering University of Missouri Columbia, MO USA
- Department of Mechanical & Aerospace Engineering University of Missouri Columbia, MO USA
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23
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The enhanced activity of Pt-Ce nanoalloy for oxygen electroreduction. Sci Rep 2020; 10:14837. [PMID: 32908219 PMCID: PMC7481784 DOI: 10.1038/s41598-020-71965-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 08/19/2020] [Indexed: 11/21/2022] Open
Abstract
The widespread use of low-temperature polymer electrolyte membrane fuel cells for clean energy source require significant reductions in the amount of expensive electrocatalyst Pt for the oxygen reduction reaction (ORR). Pt based binary alloys are promising materials for more active and stable electrocatalysts. In this paper, we studied Pt–Ce nanoalloy, which was prepared by hydrogen reduction techniques as ORR electrocatalysts. Among all PtCe alloy catalysts, the PtCe/C-800 ℃ shows superior ORR activity, stability and durability compared to commercial Pt/C. The results presented in this paper will provide the future perspectives to research based on Pt-RE (RE = Ce, Dy, Gd, Er, Sm, and La) alloy as an novel electrocatalyst for various electrocatalytic reactions.
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24
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Li G, Li J, Cui Q, Mai W, Zhang Z, Zhang K, Nie R, Hu W. Using a Fe-doping MOFs strategy to effectively improve the electrochemical activity of N-doped C materials for oxygen reduction reaction in alkaline medium. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04653-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Braunwarth L, Jung C, Jacob T. Exploring the Structure–Activity Relationship on Platinum Nanoparticles. Top Catal 2020. [DOI: 10.1007/s11244-020-01324-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThe design of active and stable Pt-based nanoscale electrocatalysts for the oxygen reduction reaction (ORR) plays the central role in ameliorating the efficiency of proton exchange membrane fuel-cells towards future energy applications. On that front, theoretical studies have contributed significantly to this research area by gaining deeper insights and understanding of the ongoing processes. In this work, we present an approach capable of characterizing differently-shaped platinum nanoparticles undergoing thermally- and adsorbate-induced restructuring of the surface. Further, by performing ReaxFF-Grand Canonical Molecular Dynamics simulations we explored the water formation on these roughened (“realistic”) nanoparticles in a H2/O2 environment. Taking into consideration the coverage of oxygen-containing intermediates and occurring surface roughening the nanoparticles’ activities were explored. Hereby, we succeeded in locally resolving the water formation on the nanoparticles’ surfaces, allowing an allocation of the active sites for H2O production. We observed that exposed, low-coordinated sites as well as pit-shaped sites originating from roughening of vertices and edges are most active towards H2O formation.
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26
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Theoretical Modeling of Site Selectivity and Chemical Substitution Effect of H2O2 Production Efficiency on Modified Graphene. Catal Letters 2020. [DOI: 10.1007/s10562-020-03302-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Jayanthi E, Murugesan N, Ramesh C. Amperometric H2 sensor with PtxPdy alloy electrode prepared by pulsed electrodeposition method. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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28
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Oxygen Reduction Reaction Catalyzed by Pt3M (M = 3d Transition Metals) Supported on O-doped Graphene. Catalysts 2020. [DOI: 10.3390/catal10020156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Pt3M (M = 3d transition metals) supported on oxygen-doped graphene as an electrocatalyst for oxygen reduction was investigated using the periodic density functional theory-based computational method. The results show that oxygen prefers to adsorb on supported Pt3M in a bridging di-oxygen configuration. Upon reduction, the O–O bond breaks spontaneously and the oxygen adatom next to the metal–graphene interface is hydrogenated, resulting in co-adsorbed O* and OH* species. Water formation was found to be the potential-limiting step on all catalysts. The activity for the oxygen reduction reaction was evaluated against the difference of the oxygen adsorption energy on the Pt site and the M site of Pt3M and the results indicate that the oxygen adsorption energy difference offers an improved prediction of the oxygen reduction activity on these catalysts. Based on the analysis, Pt3Ni supported on oxygen-doped graphene exhibits an enhanced catalytic performance for oxygen reduction over Pt4.
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29
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Wang X, Orikasa Y, Inaba M, Uchimoto Y. Reviving Galvanic Cells To Synthesize Core–Shell Nanoparticles with a Quasi-Monolayer Pt Shell for Electrocatalytic Oxygen Reduction. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03672] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Xiaoming Wang
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
- College of Materials Science and Engineering, Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering, Changsha University of Science & Technology, Changsha 410114, China
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Yuki Orikasa
- College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Minoru Inaba
- Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Yoshiharu Uchimoto
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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30
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Zhang Y, Zhang J, Huang J. Potential-Dependent Volcano Plot for Oxygen Reduction: Mathematical Origin and Implications for Catalyst Design. J Phys Chem Lett 2019; 10:7037-7043. [PMID: 31647678 DOI: 10.1021/acs.jpclett.9b02436] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Climbing up the volcano peak stands as a challenging problem for oxygen reduction. Repeated efforts have been made to fine-tune the binding energy of oxygen reaction intermediates within a narrow region of 0.2 eV by adjusting the catalyst electronic structure. Herein, we address ourselves to two different, oft-neglected but nontrivial questions: (a) Does a superior oxygen reduction reaction catalyst in rotating disk electrode experiments still work well in practical fuel cells (usually at a different potential)? (b) For a given catalyst, can we place it on the volcano peak by adjusting the electrode potential (ϕM), which can be easily varied within 0.5 V in experiments, and the potential at the reaction plane in solution (ϕOHP), which is modulated by double-layer electrostatic effects? To answer these two questions, we articulate the mathematical origin of the volcano plot and reveal its dependence on ϕM and ϕOHP by combining a microkinetic model for the oxygen reduction reaction and a mean-field model for the double layer. Furthermore, we explore possible approaches of adjusting ϕOHP, for instance, by varying electrolyte concentration and particularly by tuning the electrostatic properties of the support material in a supported catalyst system. The investigation of how electrostatic properties of the support material affect the volcano plot of a supported catalyst opens an additional channel of catalyst-support interactions.
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Affiliation(s)
- Yufan Zhang
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P.R. China
- Shen Yuan Honors College , Beihang University , Beijing 100191 , P.R. China
| | - Jianbo Zhang
- State Key Laboratory of Automotive Safety and Energy, School of Vehicle and Transportation , Tsinghua University , Beijing 100084 , P.R. China
| | - Jun Huang
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering , Central South University , Changsha 410083 , P.R. China
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31
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Samira S, Gu XK, Nikolla E. Design Strategies for Efficient Nonstoichiometric Mixed Metal Oxide Electrocatalysts: Correlating Measurable Oxide Properties to Electrocatalytic Performance. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02505] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Samji Samira
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - Xiang-Kui Gu
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
| | - Eranda Nikolla
- Department of Chemical Engineering and Materials Science, Wayne State University, Detroit, Michigan 48202, United States
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32
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Cheng N, Zhang L, Jiang H, Zhou Y, Yu S, Chen L, Jiang H, Li C. Locally-ordered PtNiPb ternary nano-pompons as efficient bifunctional oxygen reduction and methanol oxidation catalysts. NANOSCALE 2019; 11:16945-16953. [PMID: 31490525 DOI: 10.1039/c9nr04053f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To accurately control the composition and structure of Pt-based alloys is essential for engineering highly active and stable catalysts, yet challenging. Here, ternary PtNiPb nano pompons (NPs) combining the features of a highly open structure, local-ordering and the introduction of Pb have been synthesized via a seed-mediated growth method. Taking advantage of the reduction potential differences, gradient distribution of Pb and Ni throughout the NPs is realized, and both the elemental composition and distribution can be facilely regulated by reaction time. The PtNiPb NPs exhibit much enhanced catalytic performance for both the oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR), of which the ORR specific activity is 7.4- and 2.3-fold larger than those of the commercial Pt/C catalyst and binary PtNi NPs. Density functional theory (DFT) calculations reveal that the weak coupling between Pb-p and Pt-d orbitals together with the regulation of the over-compressed Pt surface by the local-ordering structure and embedded Pb atoms optimize the surface oxygen adsorption character and eventually boost the ORR.
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Affiliation(s)
- Na Cheng
- Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science & Technology, Shanghai 200237, China.
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He C, Sankarasubramanian S, Matanovic I, Atanassov P, Ramani V. Understanding the Oxygen Reduction Reaction Activity and Oxidative Stability of Pt Supported on Nb-Doped TiO 2. CHEMSUSCHEM 2019; 12:3468-3480. [PMID: 30835947 DOI: 10.1002/cssc.201900499] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Indexed: 05/10/2023]
Abstract
Commercial fuel cell electrocatalyst degradation results from carbon electrocatalyst support oxidation at high operating potential transients. Guided by density functional theory (DFT) calculations, Nb-doped TiO2 (NTO) was synthesized, which exhibits a unique combination of high surface area, high electrical conductivity, and high porosity. This catalyst retained 78 % of its initial electrochemically active surface area compared with 57.6 % retained by Pt/C following the DOE/FCCJ protocol for accelerated stability test. Strong metal-support interactions, which were predicted by DFT calculations and confirmed experimentally by X-ray photoelectron spectroscopy and kinetics measurements, resulted in 21 % higher oxygen reduction reaction mass activity (at 0.9 V vs. reversible hydrogen electrode) on Pt/NTO compared with commercial Pt/C. The ex situ activity and durability of Pt/NTO translated to a fuel cell. The rise in electrode ohmic resistance and non-electrode concentration overpotential indicate that improving the conductivity of NTO and optimizing the catalyst ink formulation are critical next steps in the development of Pt/NTO-catalyzed proton exchange membrane fuel cells.
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Affiliation(s)
- Cheng He
- Center for Solar Energy and Energy Storage, Department of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, 1 Brookings Dr., St. Louis, MO, 63130, USA
| | - Shrihari Sankarasubramanian
- Center for Solar Energy and Energy Storage, Department of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, 1 Brookings Dr., St. Louis, MO, 63130, USA
| | - Ivana Matanovic
- Department of Chemical and Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Plamen Atanassov
- Department of Chemical and Biological Engineering, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, USA
| | - Vijay Ramani
- Center for Solar Energy and Energy Storage, Department of Energy, Environmental, and Chemical Engineering, Washington University in St. Louis, 1 Brookings Dr., St. Louis, MO, 63130, USA
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34
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Zhao Z, Chen C, Liu Z, Huang J, Wu M, Liu H, Li Y, Huang Y. Pt-Based Nanocrystal for Electrocatalytic Oxygen Reduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1808115. [PMID: 31183932 DOI: 10.1002/adma.201808115] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 02/12/2019] [Indexed: 06/09/2023]
Abstract
Currently, Pt-based electrocatalysts are adopted in the practical proton exchange membrane fuel cell (PEMFC), which converts the energy stored in hydrogen and oxygen into electrical power. However, the broad implementation of the PEMFC, like replacing the internal combustion engine in the present automobile fleet, sets a requirement for less Pt loading compared to current devices. In principle, the requirement needs the Pt-based catalyst to be more active and stable. Two main strategies, engineering of the electronic (d-band) structure (including controlling surface facet, tuning surface composition, and engineering surface strain) and optimizing the reactant adsorption sites are discussed and categorized based on the fundamental working principle. In addition, general routes for improving the electrochemical surface area, which improves activity normalized by the unit mass of precious group metal/platinum group metal, and stability of the electrocatalyst are also discussed. Furthermore, the recent progress of full fuel cell tests of novel electrocatalysts is summarized. It is suggested that a better understanding of the reactant/intermediate adsorption, electron transfer, and desorption occurring at the electrolyte-electrode interface is necessary to fully comprehend these electrified surface reactions, and standardized membrane electrode assembly (MEA) testing protocols should be practiced, and data with full parameters detailed, for reliable evaluation of catalyst functions in devices.
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Affiliation(s)
- Zipeng Zhao
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Changli Chen
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Zeyan Liu
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Jin Huang
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Menghao Wu
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Haotian Liu
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Yujing Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yu Huang
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
- California Nanosystems Institute, University of California, Los Angeles, CA, 90095, USA
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35
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Ding Y, Schlögl R, Heumann S. The Role of Supported Atomically Distributed Metal Species in Electrochemistry and How to Create Them. ChemElectroChem 2019. [DOI: 10.1002/celc.201900598] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yuxiao Ding
- Max Planck Institute for Chemical Energy ConversionDepartment of Heterogeneous Reactions Stiftststraße 34–36 Mülheim an der Ruhr 45470
| | - Robert Schlögl
- Max Planck Institute for Chemical Energy ConversionDepartment of Heterogeneous Reactions Stiftststraße 34–36 Mülheim an der Ruhr 45470
| | - Saskia Heumann
- Max Planck Institute for Chemical Energy ConversionDepartment of Heterogeneous Reactions Stiftststraße 34–36 Mülheim an der Ruhr 45470
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36
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Pašti IA, Fako E, Dobrota AS, López N, Skorodumova NV, Mentus SV. Atomically Thin Metal Films on Foreign Substrates: From Lattice Mismatch to Electrocatalytic Activity. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04236] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Igor A. Pašti
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia
- Department of Materials Science and Engineering, School of Industrial Engineering and Management, KTH−Royal Institute of Technology, Brinellvägen 23, 100 44 Stockholm, Sweden
| | - Edvin Fako
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Tarragona, Spain
| | - Ana S. Dobrota
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Tarragona, Spain
| | - Natalia V. Skorodumova
- Department of Materials Science and Engineering, School of Industrial Engineering and Management, KTH−Royal Institute of Technology, Brinellvägen 23, 100 44 Stockholm, Sweden
- Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden
| | - Slavko V. Mentus
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia
- Serbian Academy of Sciences and Arts, Knez Mihajlova 35, 11000 Belgrade, Serbia
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37
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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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38
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Chen J, Chen Y, Li P, Wen Z, Chen S. Energetic Span as a Rate-Determining Term for Electrocatalytic Volcanos. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03008] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Junxiang Chen
- Hubei Key Laboratory of Electrochemical Power Sources, Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Yongting Chen
- Hubei Key Laboratory of Electrochemical Power Sources, Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Peng Li
- Hubei Key Laboratory of Electrochemical Power Sources, Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
| | - Zhenhai Wen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shengli Chen
- Hubei Key Laboratory of Electrochemical Power Sources, Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China
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39
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Akhade SA, Nidzyn RM, Rostamikia G, Janik MJ. Using Brønsted-Evans-Polanyi relations to predict electrode potential-dependent activation energies. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.03.048] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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40
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He H, Chen J, Zhang D, Li F, Chen X, Chen Y, Bian L, Wang Q, Duan P, Wen Z, Lv X. Modulating the Electrocatalytic Performance of Palladium with the Electronic Metal–Support Interaction: A Case Study on Oxygen Evolution Reaction. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00460] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hongyang He
- Department of Energy and Chemical Engineering, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, P. R. China
| | - Junxiang Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Province Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P.R. China
| | - Dafeng Zhang
- Department of Energy and Chemical Engineering, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, P. R. China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Fang Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Xin Chen
- Department of Energy and Chemical Engineering, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, P. R. China
| | - Yumei Chen
- Department of Energy and Chemical Engineering, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, P. R. China
| | - Linyan Bian
- Department of Energy and Chemical Engineering, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, P. R. China
| | - Qiufen Wang
- Department of Energy and Chemical Engineering, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, P. R. China
| | - Peigao Duan
- Department of Energy and Chemical Engineering, College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454003, P. R. China
| | - Zhenhai Wen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Province Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P.R. China
| | - Xiaojun Lv
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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41
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l-Cysteine oxidation studied by rotating ring disk electrodes: Verification of reaction intermediates. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.03.071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Strasser P, Gliech M, Kuehl S, Moeller T. Electrochemical processes on solid shaped nanoparticles with defined facets. Chem Soc Rev 2018; 47:715-735. [PMID: 29354840 DOI: 10.1039/c7cs00759k] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This 2007 Chemistry Nobel prize update covers scientific advances of the past decade in our understanding of electrocatalytic processes on surfaces of nanoscale shape-controlled polyhedral solids. It is argued that the field of chemical reaction processes on solid surfaces has recently been paying increasing attention to the fundamental understanding of electrified solid-liquid interfaces and toward the operando study of the minute fraction of catalytically active, structurally dynamic non-equilibrium Taylor-type surface sites. Meanwhile, despite mounting evidence of acting as structural proxies in some cases, the concept of catalytic structure sensitivity of well-defined nanoscale solid surfaces continues to be a key organizing principle for the science of shape-controlled nanocrystals and, hence, constitutes a central recurring theme in this review. After addressing key aspects and recent progress in the wet-chemical synthesis of shaped nanocatalysts, three areas of electrocatalytic processes on solid shape-controlled nanocrystals of current scientific priority are discussed in more detail: the oxygen electroreduction on shape-controlled Pt-Ni polyhedra with its technological relevance for low temperature fuel cells, the CO2 electroreduction to hydrocarbons on Cu polyhedra and the puzzling interplay between chemical and structural effects, and the electrocatalytic oxygen evolution reaction from water on shaped transition metal oxides. The review closes with the conclusion that Surface Science and thermal catalysis, honored by Ertl's Nobel prize a decade ago, continue to show major repercussions on the emerging field of Interface Science.
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Affiliation(s)
- Peter Strasser
- The Electrochemical Energy, Catalysis and Material Science Laboratory, Department of Chemistry, Chemical Engineering Division, Technical University Berlin, 10623 Berlin, Germany.
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43
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Kulkarni A, Siahrostami S, Patel A, Nørskov JK. Understanding Catalytic Activity Trends in the Oxygen Reduction Reaction. Chem Rev 2018; 118:2302-2312. [DOI: 10.1021/acs.chemrev.7b00488] [Citation(s) in RCA: 1065] [Impact Index Per Article: 177.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ambarish Kulkarni
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, 450 Serra Mall, Stanford, California 94305, United States
| | - Samira Siahrostami
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, 450 Serra Mall, Stanford, California 94305, United States
| | - Anjli Patel
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, 450 Serra Mall, Stanford, California 94305, United States
| | - Jens K. Nørskov
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, 450 Serra Mall, Stanford, California 94305, United States
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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44
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Roy C, Knudsen BP, Pedersen CM, Velázquez-Palenzuela A, Christensen LH, Damsgaard CD, Stephens IEL, Chorkendorff I. Scalable Synthesis of Carbon-Supported Platinum–Lanthanide and −Rare-Earth Alloys for Oxygen Reduction. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03972] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Claudie Roy
- Surface
Physics and Catalysis, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Brian P. Knudsen
- Surface
Physics and Catalysis, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Christoffer M. Pedersen
- Surface
Physics and Catalysis, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
- Center
for Nano- and Micro technology, Danish Technological Institute (DTI), Gregersenvej, DK-2630 Taastrup, Denmark
| | - Amado Velázquez-Palenzuela
- Surface
Physics and Catalysis, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
- Center
for Nano- and Micro technology, Danish Technological Institute (DTI), Gregersenvej, DK-2630 Taastrup, Denmark
| | - Leif H. Christensen
- Center
for Nano- and Micro technology, Danish Technological Institute (DTI), Gregersenvej, DK-2630 Taastrup, Denmark
| | - Christian Danvad Damsgaard
- Center
for Electron Nanoscopy, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
| | - Ifan E. L. Stephens
- Surface
Physics and Catalysis, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
- Department
of Materials, Imperial College London, London SW7 2AZ, United Kingdom
| | - Ib Chorkendorff
- Surface
Physics and Catalysis, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
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45
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Liu S, White MG, Liu P. Oxygen Reduction Reaction on Ag(111) in Alkaline Solution: A Combined Density Functional Theory and Kinetic Monte Carlo Study. ChemCatChem 2018. [DOI: 10.1002/cctc.201701539] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shizhong Liu
- Chemistry Department State University of New York (SUNY) at Stony Brook Stony Brook NY 11794 USA
| | - Michael G. White
- Chemistry Department State University of New York (SUNY) at Stony Brook Stony Brook NY 11794 USA
- Chemistry Division Brookhaven National Laboratory Upton NY 11973 USA
| | - Ping Liu
- Chemistry Division Brookhaven National Laboratory Upton NY 11973 USA
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46
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Luo Y, Kirchhoff B, Fantauzzi D, Calvillo L, Estudillo-Wong LA, Granozzi G, Jacob T, Alonso-Vante N. Molybdenum Doping Augments Platinum-Copper Oxygen Reduction Electrocatalyst. CHEMSUSCHEM 2018; 11:193-201. [PMID: 29112796 DOI: 10.1002/cssc.201701822] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/24/2017] [Indexed: 06/07/2023]
Abstract
Improving the efficiency of Pt-based oxygen reduction reaction (ORR) catalysts while also reducing costs remains an important challenge in energy research. To this end, we synthesized highly stable and active carbon-supported Mo-doped PtCu (Mo-PtCu/C) nanoparticles (NPs) from readily available precursors in a facile one-pot reaction. Mo-PtCu/C displays two-to-fourfold-higher ORR half-cell kinetics than reference PtCu/C and Pt/C materials, a trend that was confirmed in proof-of-concept experiments by using a H2 /O2 microlaminar fuel cell. This Mo-induced activity increase mirrors observations for Mo-PtNi/C NPs and possibly suggests an emerging trend. Electrochemical-accelerated stability tests revealed that dealloying was greatly reduced in Mo-PtCu/C in contrast to the binary alloys PtCu/C and PtMo/C. Supporting DFT studies suggested that the exceptional stability of Mo-PtCu could be attributed to oxidative resistance of the Mo-doped atoms. Furthermore, our calculations revealed that oxygen could induce segregation of Mo to the catalytic surface, at which it effected beneficial changes to the surface oxygen adsorption energetics in the context of the Sabatier principle.
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Affiliation(s)
- Yun Luo
- IC2MP, UMR-CNRS 7285, University of Poitiers, 14 rue Michel Brunet, 86022, Poitiers, France
| | - Björn Kirchhoff
- Institute of Electrochemistry, Ulm University, Albert Einstein-Allee 47, 89081, Ulm, Germany
| | - Donato Fantauzzi
- Helmholtz-Institute Ulm (HIU), Electrochemical Energy Storage, Helmholtz-Straße 16, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021, Karlsruhe, Germany
| | - Laura Calvillo
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | | | - Gaetano Granozzi
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131, Padova, Italy
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert Einstein-Allee 47, 89081, Ulm, Germany
- Helmholtz-Institute Ulm (HIU), Electrochemical Energy Storage, Helmholtz-Straße 16, 89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021, Karlsruhe, Germany
| | - Nicolas Alonso-Vante
- IC2MP, UMR-CNRS 7285, University of Poitiers, 14 rue Michel Brunet, 86022, Poitiers, France
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47
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Huang J, Zhang J, Eikerling M. Unifying theoretical framework for deciphering the oxygen reduction reaction on platinum. Phys Chem Chem Phys 2018; 20:11776-11786. [DOI: 10.1039/c8cp01315b] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A theoretical framework relates formation of oxygen intermediates to basic electronic and electrostatic properties of the catalytic surface.
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Affiliation(s)
- Jun Huang
- College of Chemistry and Chemical Engineering
- Central South University
- Changsha 410083
- P. R. China
- Department of Automotive Engineering
| | - Jianbo Zhang
- Department of Automotive Engineering
- State Key Laboratory of Automotive Safety and Energy
- Tsinghua University
- Beijing 100084
- China
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48
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Zana A, Wiberg GKH, Deng YJ, Østergaard T, Rossmeisl J, Arenz M. Accessing the Inaccessible: Analyzing the Oxygen Reduction Reaction in the Diffusion Limit. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38176-38180. [PMID: 29063766 DOI: 10.1021/acsami.7b13902] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The oxygen reduction reaction (ORR) is one of the key processes in electrocatalysis. In this communication, the ORR is studied using a rotating disk electrode (RDE). In conventional work, this method limits the potential region where kinetic (mass transport free) reaction rates can be determined to a narrow range. Here, we applied a new approach, which allows us to analyze the ORR rates in the diffusion-limited potential region of high mass transport. Thus, for the first time, the effect of anion adsorption on the ORR can be studied at such potentials.
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Affiliation(s)
- Alessandro Zana
- Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark
- Department of Chemistry and Biochemistry, University of Bern , Bern 3012, Switzerland
| | - Gustav K H Wiberg
- Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark
- Department of Chemistry and Biochemistry, University of Bern , Bern 3012, Switzerland
| | - Yu-Jia Deng
- Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark
- School of Chemistry and Chemical Engineering, Qingdao University , Qingdao 266000, China
| | - Thomas Østergaard
- Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark
| | - Jan Rossmeisl
- Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark
| | - Matthias Arenz
- Nano-Science Center, Department of Chemistry, University of Copenhagen , Copenhagen 1165, Denmark
- Department of Chemistry and Biochemistry, University of Bern , Bern 3012, Switzerland
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49
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Zhang C, Zhang R, Li X, Chen W. PtNi Nanocrystals Supported on Hollow Carbon Spheres: Enhancing the Electrocatalytic Performance through High-Temperature Annealing and Electrochemical CO Stripping Treatments. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29623-29632. [PMID: 28813593 DOI: 10.1021/acsami.7b04489] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
PtNi nanoparticles have been proved to be a type of highly efficient electrocatalyst for the oxygen reduction reaction (ORR) among the Pt-based nanomaterials. However, how to improve the surface catalytic activity and stability of polymer-stabilized Pt-based nanocrystals is still a critical issue for their application in fuel cells. In this work, a one-step solvothermal process was used to synthesize PVP-stabilized PtNi nanocubes supported on hollow carbon spheres. With optimized metal precursor ratio (Pt/Ni = 1:1) and solvothermal temperature (130 °C), PtNi nanocrystals with uniform size and cubic shape can be synthesized and highly dispersed on hollow carbon spheres. To improve the electrocatalytic activity of the PtNi nanocrystals, the synthesized composite was treated by a heating annealing at 300 °C and a subsequent electrochemical CO stripping process. It was found that the two-step treatment can significantly enhance the catalytic activity of the PtNi nanocrystals for ORR with high durability. In addition, the prepared PtNi composite also showed higher catalytic activity and stability for methanol oxidation. The obtained peak current density on the present catalyst can reach 3.89 A/mgPt, which is 9 times as high as commercial Pt/C (0.43 A/mgPt). The present study not only demonstrates a general method to synthesize hollow carbon sphere-supported nanoparticle catalysts but also provides an efficient strategy to active the surface activity of nanoparticles.
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Affiliation(s)
- Chunmei Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, Jilin China
- University of Chinese Academy of Sciences , Beijing 100039, China
| | - Ruizhong Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, Jilin China
- University of Chinese Academy of Sciences , Beijing 100039, China
| | - Xiaokun Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, Jilin China
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, Jilin China
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Cai Y, Gao P, Wang F, Zhu H. Surface tuning of carbon supported chemically ordered nanoparticles for promoting their catalysis toward the oxygen reduction reaction. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.068] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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