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Fedorov AY, Bukhtiyarov AV, Panafidin MA, Prosvirin IP, Zubavichus YV, Bukhtiyarov VI. Thermally Induced Surface Structure and Morphology Evolution in Bimetallic Pt-Au/HOPG Nanoparticles as Probed Using XPS and STM. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:57. [PMID: 38202512 PMCID: PMC10780797 DOI: 10.3390/nano14010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024]
Abstract
Bimetallic nanoparticles expand the possibilities of catalyst design, providing an extra degree of freedom for tailoring the catalyst structure in comparison to purely monometallic systems. The distribution mode of two metal species defines the structure of surface catalytic sites, and current research efforts are focused on the development of methods for their controlled tuning. In light of this, a comprehensive investigation of the factors which influence the changes in the morphology of bimetallic nanoparticles, including the elemental redistribution, are mandatory for each particular bimetallic system. Here we present the combined XPS/STM study of the surface structure and morphology of bimetallic Pt-Au/HOPG nanoparticles prepared by thermal vacuum deposition and show that thermal annealing up to 350 °C induces the alloying process between the two bulk-immiscible metal components. Increasing the treatment temperature enhances the extent of Pt-Au alloying. However, the sintering of nanoparticles starts to occur above 500 °C. The approach implemented in this work includes the theoretical simulation of XPS signal intensities for a more meticulous analysis of the compositional distribution and can be helpful from a methodological perspective for other XPS/STM studies of bimetallic nanoparticles on planar supports.
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Affiliation(s)
| | - Andrey V. Bukhtiyarov
- Boreskov Institute of Catalysis SB RAS, Novosibirsk 630090, Russia (M.A.P.); (I.P.P.); (Y.V.Z.); (V.I.B.)
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2
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Yang WH, Yu FQ, Huang R, Shao GF, Liu TD, Wen YH. Structural Determination and Hierarchical Evolution of Transition Metal Clusters Based on an Improved Self-Adaptive Differential Evolution with Neighborhood Search Algorithm. J Chem Inf Model 2023; 63:6727-6739. [PMID: 37853630 DOI: 10.1021/acs.jcim.3c01331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Determining the optimal structures and clarifying the corresponding hierarchical evolution of transition metal clusters are of fundamental importance for their applications. The global optimization of clusters containing a large number of atoms, however, is a vastly challenging task encountered in many fields of physics and chemistry. In this work, a high-efficiency self-adaptive differential evolution with neighborhood search (SaNSDE) algorithm, which introduced an optimized cross-operation and an improved Basin Hopping module, was employed to search the lowest-energy structures of CoN, PtN, and FeN (N = 3-200) clusters. The performance of the SaNSDE algorithm was first evaluated by comparing our results with the parallel results collected in the Cambridge Cluster Database (CCD). Subsequently, different analytical methods were introduced to investigate the structural and energetic properties of these clusters systematically, and special attention was paid to elucidating the structural evolution with cluster size by exploring their overall shape, atomic arrangement, structural similarity, and growth pattern. By comparison with those results listed in the CCD, 13 lower-energy structures of FeN clusters were discovered. Moreover, our results reveal that the clusters of three metals had different magic numbers with superior stable structures, most of which possessed high symmetry. The structural evolution of Co, Pt, and Fe clusters could be, respectively, considered as predominantly closed-shell icosahedral, Marks decahedral, and disordered icosahedral-ring growth. Further, the formation of shell structures was discovered, and the clusters with hcp-, fcc-, and bcc-like configurations were ascertained. Nevertheless, the growth of the clusters was not simply atom-to-atom piling up on a given cluster despite gradual saturation of the coordination number toward its bulk limit. Our work identifies the general growth trends for such a wide region of cluster sizes, which would be unbearably expensive in first-principles calculations, and advances the development of global optimization algorithms for the structural prediction of clusters.
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Affiliation(s)
- Wei-Hua Yang
- Department of Physics, Xiamen University, Xiamen 361005, China
| | - Fang-Qi Yu
- Department of Physics, Xiamen University, Xiamen 361005, China
| | - Rao Huang
- Department of Physics, Xiamen University, Xiamen 361005, China
| | - Gui-Fang Shao
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, China
| | - Tun-Dong Liu
- Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, China
| | - Yu-Hua Wen
- Department of Physics, Xiamen University, Xiamen 361005, China
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3
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Nguyen-Ha BN, Phan Dang CT, Van Duong L, Pham-Ho MP, Nguyen MT, Tam NM. Formation of pyramidal structures through mixing gold and platinum atoms: the Au xPt y2+ clusters with x + y = 10. RSC Adv 2023; 13:32893-32903. [PMID: 38025864 PMCID: PMC10630918 DOI: 10.1039/d3ra06000d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
The geometric and electronic structures of a small series of mixed gold and platinum AuxPty2+ clusters, with x + y = 10, were investigated using quantum chemical methods. A consistent tetrahedral pyramid structure emerges, displaying two patterns of structural growth by a notable critical point at y = 5. This affects the clusters' electron population, chemical bonding, and stability. For the Pt-doped Au clusters with y values from 2 to 5, the bonds enable Pt atoms to assemble into symmetric line, triangle, quadrangle, and tetragonal pyramidal Pty blocks, respectively. For the Au-doped Pt clusters, with larger values of y > 5, the structures are more relaxed and the d electrons of Pt atoms become delocalized over more centers, leading to lower symmetry structures. A certain aromaticity arising from delocalization of d electrons over the multi-center framework in the doped Pt clusters contributes to their stability, with Pt102+ at y = 10 exhibiting the highest stability. While the ground electronic state of the neutral platinum atom [Xe]. 4f145d96s1 leads to a triplet state (3D3), the total magnetic moments of AuxPty2+ are large increasing steadily from 0 to 10 μB and primarily located on Pt atoms, corresponding to the increase of the number of Pt atoms from 0 to 10 and significantly enhancing the magnetic moments. An admixture of both Au and Pt atoms thus emerges as an elegant way of keeping a small pyramidal structure but bringing in a high and controllable magnetic moment.
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Affiliation(s)
- Bao-Ngan Nguyen-Ha
- Laboratory for Chemical Computation and Modeling, Institute for Computational Science and Artificial Intelligence, Van Lang University Ho Chi Minh City Vietnam
- Faculty of Applied Technology, School of Technology, Van Lang University Ho Chi Minh City Vietnam
| | - Cam-Tu Phan Dang
- Faculty of Natural Sciences, Duy Tan University Da Nang Vietnam
- Institute of Research and Development, Duy Tan University Da Nang Vietnam
| | - Long Van Duong
- Faculty of Applied Technology, School of Technology, Van Lang University Ho Chi Minh City Vietnam
- Atomic Molecular and Optical Physics Research Group, Science and Technology Advanced Institute, Van Lang University Ho Chi Minh City Vietnam
| | - My Phuong Pham-Ho
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet Street, District 10 Ho Chi Minh City Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc City Ho Chi Minh City Vietnam
| | - Minh Tho Nguyen
- Laboratory for Chemical Computation and Modeling, Institute for Computational Science and Artificial Intelligence, Van Lang University Ho Chi Minh City Vietnam
- Faculty of Applied Technology, School of Technology, Van Lang University Ho Chi Minh City Vietnam
| | - Nguyen Minh Tam
- Faculty of Basic Sciences, University of Phan Thiet 225 Nguyen Thong Phan Thiet City Binh Thuan Vietnam
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4
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Albrahim MA, Shrotri A, Unocic RR, Hoffman AS, Bare SR, Karim AM. Size-Dependent Dispersion of Rhodium Clusters into Isolated Single Atoms at Low Temperature and the Consequences for CO Oxidation Activity. Angew Chem Int Ed Engl 2023; 62:e202308002. [PMID: 37488071 DOI: 10.1002/anie.202308002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 07/26/2023]
Abstract
Understanding the dynamic structural evolution of supported metal clusters under reaction conditions is crucial to develop structure reactivity relations. Here, we followed the structure of different size Rh clusters supported on Al2 O3 using in situ/operando spectroscopy and ex situ aberration-corrected electron microscopy. We report a dynamic evolution of rhodium clusters into thermally stable isolated single atoms upon exposure to oxygen and during CO oxidation. Rh clusters partially disperse into single atoms at room temperature and the extent of dispersion increases as the Rh size decreases and as the reaction temperature increases. A strong correlation is found between the extent of dispersion and the CO oxidation kinetics. More importantly, dispersing Rh clusters into single atoms increases the activity at room temperature by more than two orders of magnitude due to the much lower activation energy on single atoms (40 vs. 130 kJ/mol). This work demonstrates that the structure and reactivity of small Rh clusters are very sensitive to the reaction environment.
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Affiliation(s)
- Malik A Albrahim
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA
| | - Abhijit Shrotri
- Institute for Catalysis, Hokkaido University Kita ku, Sapporo, Hokkaido, 001-0021, Japan
| | - Raymond R Unocic
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37830, USA
| | - Adam S Hoffman
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, 94025, USA
| | - Simon R Bare
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California, 94025, USA
| | - Ayman M Karim
- Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, 24060, USA
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5
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Li Z, Lu Y, Li J, Xu M, Qi Y, Park SW, Kitano M, Hosono H, Chen JS, Ye TN. Multiple reaction pathway on alkaline earth imide supported catalysts for efficient ammonia synthesis. Nat Commun 2023; 14:6373. [PMID: 37821432 PMCID: PMC10567757 DOI: 10.1038/s41467-023-42050-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/27/2023] [Indexed: 10/13/2023] Open
Abstract
The tunability of reaction pathways is required for exploring efficient and low cost catalysts for ammonia synthesis. There is an obstacle by the limitations arising from scaling relation for this purpose. Here, we demonstrate that the alkali earth imides (AeNH) combined with transition metal (TM = Fe, Co and Ni) catalysts can overcome this difficulty by utilizing functionalities arising from concerted role of active defects on the support surface and loaded transition metals. These catalysts enable ammonia production through multiple reaction pathways. The reaction rate of Co/SrNH is as high as 1686.7 mmol·gCo-1·h-1 and the TOFs reaches above 500 h-1 at 400 °C and 0.9 MPa, outperforming other reported Co-based catalysts as well as the benchmark Cs-Ru/MgO catalyst and industrial wüstite-based Fe catalyst under the same reaction conditions. Experimental and theoretical results show that the synergistic effect of nitrogen affinity of 3d TMs and in-situ formed NH2- vacancy of alkali earth imides regulate the reaction pathways of the ammonia production, resulting in distinct catalytic performance different from 3d TMs. It was thus demonstrated that the appropriate combination of metal and support is essential for controlling the reaction pathway and realizing highly active and low cost catalysts for ammonia synthesis.
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Affiliation(s)
- Zichuang Li
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yangfan Lu
- College of Materials Science and Engineering, National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400044, China
| | - Jiang Li
- Materials Research Center for Element Strategy, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Miao Xu
- State Key Laboratory of Space Power Sources, Shanghai Institute of Space Power-Sources, Shanghai, 200245, China
| | - Yanpeng Qi
- School of Physical Science and Technology Shanghai Tech University, Shanghai, 201210, China
- ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, Shanghai, 201210, China
- Shanghai Key Laboratory of High-resolution Electron Microscopy, ShanghaiTech University, Shanghai, 201210, China
| | - Sang-Won Park
- Materials Research Center for Element Strategy, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan
| | - Masaaki Kitano
- Materials Research Center for Element Strategy, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.
| | - Hideo Hosono
- Materials Research Center for Element Strategy, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, 226-8503, Japan.
| | - Jie-Sheng Chen
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Tian-Nan Ye
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
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6
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Wang L, Ore RM, Jayamaha PK, Wu ZP, Zhong CJ. Density functional theory based computational investigations on the stability of highly active trimetallic PtPdCu nanoalloys for electrochemical oxygen reduction. Faraday Discuss 2023; 242:429-442. [PMID: 36173024 DOI: 10.1039/d2fd00101b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Activity, cost, and durability are the trinity of catalysis research for the electrochemical oxygen reduction reaction (ORR). While studies towards increasing activity and reducing cost of ORR catalysts have been carried out extensively, much effort is needed in durability investigation of highly active ORR catalysts. In this work, we examined the stability of a trimetallic PtPdCu catalyst that has demonstrated high activity and incredible durability during ORR using density functional theory (DFT) based computations. Specifically, we studied the processes of dissolution/deposition and diffusion between the surface and inner layer of Cu species of Pt20Pd20Cu60 catalysts at electrode potentials up to 1.2 V to understand their role towards stabilizing Pt20Pd20Cu60 catalysts. The results show there is a dynamic Cu surface composition range that is dictated by the interplay of the four processes, dissolution, deposition, diffusion from the surface to inner layer, and diffusion from the inner layer to the surface of Cu species, in the stability and observed oscillation of lattice constants of Cu-rich PtPdCu nanoalloys.
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Affiliation(s)
- Lichang Wang
- School of Chemical and Biomolecular Sciences and the Materials Technology Center, Southern Illinois University, Carbondale, IL 62901, USA.
| | - Rotimi M Ore
- School of Chemical and Biomolecular Sciences and the Materials Technology Center, Southern Illinois University, Carbondale, IL 62901, USA.
| | - Peshala K Jayamaha
- School of Chemical and Biomolecular Sciences and the Materials Technology Center, Southern Illinois University, Carbondale, IL 62901, USA.
| | - Zhi-Peng Wu
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
| | - Chuan-Jian Zhong
- Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902, USA
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7
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Kuge K, Yamauchi K, Sakai K. Theoretical study on the mechanism of the hydrogen evolution reaction catalyzed by platinum subnanoclusters. Dalton Trans 2023; 52:583-597. [PMID: 36421022 DOI: 10.1039/d2dt02645g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The smallest subnanocluster models of platinum colloid (Ptn) are supposed to diffuse in aqueous media in order to examine their behaviors when they are subjected to the electrocatalytic hydrogen evolution reaction under zero overpotential conditions at pH 0. The DFT approach allows us to clarify the nature of individual proton transfer (PT) and electron transfer (ET) processes together with the importance of relying on concerted proton-electron transfer (CPET) pathways to promote the majority of H* adsorption processes by Ptn subnanoclusters. Although the CPET processes are closely correlated with the Volmer steps (Pt + H+ + e- → Pt-H*) described so far in electrochemistry, our study for the first time points out the essential capability of the Ptn clusters to promote the multiple PT steps without the need to transfer any electrons, revealing the fundamentally high basicity of the naked Ptn clusters (pKa = 27-28 for Pt4, Pt5, and Pt6). The discrete cluster models adopted herein avoid the structural constraints forced by the standard slab models and enable us to discuss the drastic alterations in the geometric and electronic structures of the intermediates given by the consecutive promotion of multiple CPET steps. The weakening of the Pt-H* bond strength with the increasing number of CPET steps is well rationalized by carefully examining the changes in the ν(Pt-H*) vibrational frequencies, the hydricity, and the H2 desorption energy. The behaviors are also correlated with the underpotential and overpotential deposited hydrogen atoms (HUPD and HOPD) discussed in electrochemical studies for many years.
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Affiliation(s)
- Keita Kuge
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Kosei Yamauchi
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Ken Sakai
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
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8
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Sarma BB, Maurer F, Doronkin DE, Grunwaldt JD. Design of Single-Atom Catalysts and Tracking Their Fate Using Operando and Advanced X-ray Spectroscopic Tools. Chem Rev 2023; 123:379-444. [PMID: 36418229 PMCID: PMC9837826 DOI: 10.1021/acs.chemrev.2c00495] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Indexed: 11/25/2022]
Abstract
The potential of operando X-ray techniques for following the structure, fate, and active site of single-atom catalysts (SACs) is highlighted with emphasis on a synergetic approach of both topics. X-ray absorption spectroscopy (XAS) and related X-ray techniques have become fascinating tools to characterize solids and they can be applied to almost all the transition metals deriving information about the symmetry, oxidation state, local coordination, and many more structural and electronic properties. SACs, a newly coined concept, recently gained much attention in the field of heterogeneous catalysis. In this way, one can achieve a minimum use of the metal, theoretically highest efficiency, and the design of only one active site-so-called single site catalysts. While single sites are not easy to characterize especially under operating conditions, XAS as local probe together with complementary methods (infrared spectroscopy, electron microscopy) is ideal in this research area to prove the structure of these sites and the dynamic changes during reaction. In this review, starting from their fundamentals, various techniques related to conventional XAS and X-ray photon in/out techniques applied to single sites are discussed with detailed mechanistic and in situ/operando studies. We systematically summarize the design strategies of SACs and outline their exploration with XAS supported by density functional theory (DFT) calculations and recent machine learning tools.
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Affiliation(s)
- Bidyut Bikash Sarma
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
| | - Florian Maurer
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
| | - Dmitry E. Doronkin
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute
for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstraße 20, 76131 Karlsruhe, Germany
- Institute
of Catalysis Research and Technology, Karlsruhe
Institute of Technology, Hermann-von-Helmholtz Platz 1, Eggenstein-Leopoldshafen, 76344 Karlsruhe, Germany
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9
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Exploring the Potential Energy Surface of Pt 6 Sub-Nano Clusters Deposited over Graphene. Int J Mol Sci 2023; 24:ijms24010870. [PMID: 36614312 PMCID: PMC9820941 DOI: 10.3390/ijms24010870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/22/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023] Open
Abstract
Catalytic systems based on sub-nanoclusters deposited over different supports are promising for very relevant chemical transformations such as many electrocatalytic processes as the ORR. These systems have been demonstrated to be very fluxional, as they are able to change shape and interconvert between each other either alone or in the presence of adsorbates. In addition, an accurate representation of their catalytic activity requires the consideration of ensemble effects and not a single structure alone. In this sense, a reliable theoretical methodology should assure an accurate and extensive exploration of the potential energy surface to include all the relevant structures and with correct relative energies. In this context, we applied DFT in conjunction with global optimization techniques to obtain and analyze the characteristics of the many local minima of Pt6 sub-nanoclusters over a carbon-based support (graphene)-a system with electrocatalytic relevance. We also analyzed the magnetism and the charge transfer between the clusters and the support and paid special attention to the dependence of dispersion effects on the ensemble characteristics. We found that the ensembles computed with and without dispersion corrections are qualitatively similar, especially for the lowest-in-energy clusters, which we attribute to a (mainly) covalent binding to the surface. However, there are some significant variations in the relative stability of some clusters, which would significantly affect their population in the ensemble composition.
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10
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Ye YL, Wang WL, Sun WM, Yang J. Polymeric tungsten carbide nanoclusters as potential non-noble metal catalysts for CO oxidation. NANOSCALE 2022; 14:18231-18240. [PMID: 36468662 DOI: 10.1039/d2nr06097c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The discovery of tungsten carbide (WC) as an analog of the noble metal Pt atom is of great significance toward designing novel highly-active catalysts from the viewpoint of the superatom concept. The potential of such a superatom to serve as building blocks of replacement catalysts for Pt has been evaluated in this work. The electronic properties, adsorption behaviors, and catalytic mechanisms towards the CO oxidation of (WC)n and Ptn (n = 1, 2, 4, and 6) were compared. Counterintuitively, these studied (WC)n clusters exhibit quite different electronic properties and adsorption behaviours from the corresponding Ptn species. For instance, (WC)n preferentially adsorbs O2, whereas Ptn tends to first combine with CO. Even so, it is interesting to find that the catalytic performances of (WC)n are always superior to the corresponding Ptn, and especially, the largest (WC)6 cluster exhibits the best catalytic ability towards CO oxidation. Therefore, assembling superatomic WC clusters into larger polymeric clusters can be regarded as a novel strategy to develop efficient superatom-assembled catalysts for CO oxidation. It is highly expected to see the realization of non-noble metal catalysts for various reactions in the near future experiments by using superatoms as building blocks.
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Affiliation(s)
- Ya-Ling Ye
- Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People's Republic of China.
| | - Wen-Lu Wang
- Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People's Republic of China.
| | - Wei-Ming Sun
- Department of Basic Chemistry, The School of Pharmacy, Fujian Medical University, Fuzhou 350108, People's Republic of China.
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
| | - Jinlong Yang
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
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11
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Arunachalam B, Manavalan R, Gopalakrishnan N. Effects of multi-atom doping into Pt13 cluster using Ab initio method. Theor Chem Acc 2022. [DOI: 10.1007/s00214-022-02908-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Sumer A, Jellinek J. Computational Studies of Structural, Energetic and Electronic Properties of Pure Pt and Mo and Mixed Pt/Mo Clusters: Comparative Analysis of Characteristics and Trends. J Chem Phys 2022; 157:034301. [DOI: 10.1063/5.0099760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The added technological potential of bimetallic clusters and nanoparticles, as compared to their pure counterparts, stems from the ability to further fine-tune their properties, and, consequently, functionalities, through a simultaneous use of the "knobs" of size and composition. The practical realization of this potential can be greatly advanced by the knowledge of the correlations and relationships between the various characteristics of bimetallic nanosystems and those of their pure counterparts and constituent components. Here we present results of a density functional theory study of pure Ptn and Mon clusters aimed at revisiting and exploring further their structural, electronic and energetic properties. These are then used as a basis for analysis and characterization of the results of calculations on two-component Ptn-mMom clusters. The analysis also includes establishing relationships between the properties of the Ptn-mMom clusters and those of their Ptn-m and Mom components. A particularly intriguing findings suggested by the calculations is a linear dependence of the average binding energy per atom in sets of Ptn-mMom clusters that have the same fixed number m of Mo atoms and different number n-m of Pt atoms on the fractional content (n-m)/n of Pt atoms. We derive an analytical model that establishes the fundamental basis for this linearity and expresses its parameters - the m-dependent slope and intercept - in terms of characteristic properties of the constituent components, such as the average binding energy per atom of Mom and the average per-atom adsorption energy of the Pt atoms on Mom.
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Affiliation(s)
| | - Julius Jellinek
- Division of Chemical Sciences and Engineering, Argonne National Laboratory, United States of America
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13
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Bumüller D, Yohannes AG, Kohaut S, Kondov I, Kappes MM, Fink K, Schooss D. Structures of Small Platinum Cluster Anions Pt n-: Experiment and Theory. J Phys Chem A 2022; 126:3502-3510. [PMID: 35617126 DOI: 10.1021/acs.jpca.2c02142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The structures of platinum cluster anions Pt6--Pt13- have been investigated by trapped ion electron diffraction. Structures were assigned by comparing experimental and simulated scattering functions using candidate structures obtained by density functional theory computations, including spin-orbit coupling. We find a structural evolution from planar structures (Pt6-, Pt7-) and amorphous-like structures (Pt7--Pt9-) to structures based on distorted tetrahedra (Pt9--Pt11-). Finally, Pt12- and Pt13- are based on hcp fragments. While the structural parameters are well described by density functional theory computations for all clusters studied, the predicted lowest energy structure is found in the experiment only for Pt6-. For larger clusters, higher energy isomers are necessary to obtain a fit to the scattering data.
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Affiliation(s)
- Dennis Bumüller
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Asfaw G Yohannes
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.,Steinbuch Centre for Computing, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Stephan Kohaut
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Ivan Kondov
- Steinbuch Centre for Computing, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Manfred M Kappes
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.,Institute of Physical Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131 Karlsruhe, Germany
| | - Karin Fink
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Detlef Schooss
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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14
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Zhang X, Li Z, Pei W, Li G, Liu W, Du P, Wang Z, Qin Z, Qi H, Liu X, Zhou S, Zhao J, Yang B, Shen W. Crystal-Phase-Mediated Restructuring of Pt on TiO 2 with Tunable Reactivity: Redispersion versus Reshaping. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05695] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiaoben Zhang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhimin Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Pei
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Gao Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Liu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Pengfei Du
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen Wang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Zhaoxian Qin
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haifeng Qi
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaoyan Liu
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Si Zhou
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Jijun Zhao
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian 116024, China
| | - Bing Yang
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- CAS Key Laboratory of Science and Technology on Applied Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Wenjie Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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15
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Nair AS, Anoop A, Ahuja R, Pathak B. Relativistic Effects in Platinum Nanocluster Catalysis: A Statistical Ensemble-Based Analysis. J Phys Chem A 2022; 126:1345-1359. [PMID: 35188378 DOI: 10.1021/acs.jpca.1c09981] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanoclusters are materials of paramount catalytic importance. Among various unique properties featured by nanoclusters, a pronounced relativistic effect can be a decisive parameter in governing their catalytic activity. A concise study delineating the role of relativistic effects in nanocluster catalysis is carried by investigating the oxygen reduction reaction (ORR) activity of a Pt7 subnanometer cluster. Global optimization analysis shows the critical role of spin-orbit coupling (SOC) in regulating the relative stability between structural isomers of the cluster. An overall improved ORR adsorption energetics and differently scaled adsorption-induced structural changes are identified with SOC compared to a non-SOC scenario. Ab initio atomistic thermodynamics analysis predicted nearly identical phase diagrams with significant structural differences for high coverage oxygenated clusters under realistic conditions. Though inclusion of SOC does not bring about drastic changes in the overall catalytic activity of the cluster, it is having a crucial role in governing the rate-determining step, transition-state configuration, and energetics of elementary reaction pathways. Furthermore, a statistical ensemble-based approach illustrates the strong contribution of low-energy local minimum structural isomers to the total ORR activity, which is significantly scaled up along the activity improving direction within the SOC framework. The study provides critical insights toward the importance of relativistic effects in determining various catalytic activity relevant features of nanoclusters.
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Affiliation(s)
- Akhil S Nair
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
| | - Anakuthil Anoop
- Department of Chemistry, Indian Institute of Kharagpur, Kharagpur, West Bengal 721302, India
| | - Rajeev Ahuja
- Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, Uppsala, 75120, Sweden.,Department of Physics, Indian Institute of Technology Ropar, Ropar, Punjab, 140001, India
| | - Biswarup Pathak
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, India
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16
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Kilian AS, Abreu GJP, de Siervo A, Landers R, Morais J. Evidencing the formation of Pt nano-islands on Cr2O3/Ag(111). CrystEngComm 2022. [DOI: 10.1039/d1ce01628h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work reports on a comprehensive surface atomic structure investigation on the Pt/Cr2O3/Ag(111) model catalyst. Molecular beam epitaxy (MBE) was applied to achieve the Pt/Cr2O3 model system and in...
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17
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Li C, Nakagawa Y, Yabushita M, Nakayama A, Tomishige K. Guaiacol Hydrodeoxygenation over Iron–Ceria Catalysts with Platinum Single-Atom Alloy Clusters as a Promoter. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03539] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Congcong Li
- Department of Applied Chemistry, School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Yoshinao Nakagawa
- Department of Applied Chemistry, School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
- Research Center for Rare Metal and Green Innovation, Tohoku University, 468-1, Aoba, Aramaki, Aoba-ku, Sendai 980-0845, Japan
| | - Mizuho Yabushita
- Department of Applied Chemistry, School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Akira Nakayama
- Department of Chemical System Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Keiichi Tomishige
- Department of Applied Chemistry, School of Engineering, Tohoku University, 6-6-07 Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
- Research Center for Rare Metal and Green Innovation, Tohoku University, 468-1, Aoba, Aramaki, Aoba-ku, Sendai 980-0845, Japan
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18
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Nair AS, Anoop A, Ahuja R, Pathak B. Role of atomicity in the oxygen reduction reaction activity of platinum sub nanometer clusters: A global optimization study. J Comput Chem 2021; 42:1944-1958. [PMID: 34309891 DOI: 10.1002/jcc.26725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/22/2021] [Accepted: 07/15/2021] [Indexed: 12/25/2022]
Abstract
Metal nanoclusters are an important class of materials for catalytic applications. Sub nanometer clusters are relatively less explored for their catalytic activity on account of undercoordinated surface structure. Taking this into account, we studied platinum-based sub nanometer clusters for their catalytic activity for oxygen reduction reaction (ORR). A comprehensive analysis with global optimization is carried out for structural prediction of the platinum clusters. The energetic and electronic properties of interactions of clusters with reaction intermediates are investigated. The role of structural sensitivity in the dynamics of clusters is unraveled, and unique intermediate specific interactions are identified. ORR energetics is examined, and exceptional activity for sub nanometer clusters are observed. An inverse size versus activity relationship is identified, challenging the conventional trends followed by larger nanoclusters. The principal role of atomicity in governing the catalytic activity of nanoclusters is illustrated. The structural norms governing the sub nanometer cluster activity are shown to be markedly different from larger nanoclusters.
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Affiliation(s)
- Akhil S Nair
- Department of Chemistry, Indian Institute of Technology Indore, Indore, Madhya Pradesh, India
| | - Anakuthil Anoop
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Rajeev Ahuja
- Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.,Department of Physics, Indian Institute of Technology Ropar, Ropar, Punjab, India
| | - Biswarup Pathak
- Department of Chemistry, Indian Institute of Technology Indore, Indore, Madhya Pradesh, India
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19
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Kaiser S, Maleki F, Zhang K, Harbich W, Heiz U, Tosoni S, Lechner BAJ, Pacchioni G, Esch F. Cluster Catalysis with Lattice Oxygen: Tracing Oxygen Transport from a Magnetite (001) Support onto Small Pt Clusters. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Sebastian Kaiser
- Chair of Physical Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
- Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Farahnaz Maleki
- Dipartimento di Scienza dei Materiali, University of Milano-Bicocca, via Roberto Cozzi 55, 20125 Milano, Italy
| | - Ke Zhang
- Chair of Physical Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
- Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Wolfgang Harbich
- Institute of Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Ueli Heiz
- Chair of Physical Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
- Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Sergio Tosoni
- Dipartimento di Scienza dei Materiali, University of Milano-Bicocca, via Roberto Cozzi 55, 20125 Milano, Italy
| | - Barbara A. J. Lechner
- Chair of Physical Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Gianfranco Pacchioni
- Dipartimento di Scienza dei Materiali, University of Milano-Bicocca, via Roberto Cozzi 55, 20125 Milano, Italy
| | - Friedrich Esch
- Chair of Physical Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
- Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
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20
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Padilla Espinosa IM, Jacobs TDB, Martini A. Evaluation of Force Fields for Molecular Dynamics Simulations of Platinum in Bulk and Nanoparticle Forms. J Chem Theory Comput 2021; 17:4486-4498. [PMID: 34061519 DOI: 10.1021/acs.jctc.1c00434] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Understanding the size- and shape-dependent properties of platinum nanoparticles is critical for enabling the design of nanoparticle-based applications with optimal and potentially tunable functionality. Toward this goal, we evaluated nine different empirical potentials with the purpose of accurately modeling faceted platinum nanoparticles using molecular dynamics simulation. First, the potentials were evaluated by computing bulk and surface properties-surface energy, lattice constant, stiffness constants, and the equation of state-and comparing these to prior experimental measurements and quantum mechanics calculations. Then, the potentials were assessed in terms of the stability of cubic and icosahedral nanoparticles with faces in the {100} and {111} planes, respectively. Although none of the force fields predicts all the evaluated properties with perfect accuracy, one potential-the embedded atom method formalism with a specific parameter set-was identified as best able to model platinum in both bulk and nanoparticle forms.
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Affiliation(s)
- Ingrid M Padilla Espinosa
- Department of Mechanical Engineering, University of California, Merced, Merced, California 95340, United States
| | - Tevis D B Jacobs
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Ashlie Martini
- Department of Mechanical Engineering, University of California, Merced, Merced, California 95340, United States
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21
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Yin P, Luo X, Ma Y, Chu SQ, Chen S, Zheng X, Lu J, Wu XJ, Liang HW. Sulfur stabilizing metal nanoclusters on carbon at high temperatures. Nat Commun 2021; 12:3135. [PMID: 34035287 PMCID: PMC8149400 DOI: 10.1038/s41467-021-23426-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 04/26/2021] [Indexed: 11/09/2022] Open
Abstract
Supported metal nanoclusters consisting of several dozen atoms are highly attractive for heterogeneous catalysis with unique catalytic properties. However, the metal nanocluster catalysts face the challenges of thermal sintering and consequent deactivation owing to the loss of metal surface areas particularly in the applications of high-temperature reactions. Here, we report that sulfur-a documented poison reagent for metal catalysts-when doped in a carbon matrix can stabilize ~1 nanometer metal nanoclusters (Pt, Ru, Rh, Os, and Ir) at high temperatures up to 700 °C. We find that the enhanced adhesion strength between metal nanoclusters and the sulfur-doped carbon support, which arises from the interfacial metal-sulfur bonding, greatly retards both metal atom diffusion and nanocluster migration. In catalyzing propane dehydrogenation at 550 °C, the sulfur-doped carbon supported Pt nanocluster catalyst with interfacial electronic effects exhibits higher selectivity to propene as well as more stable durability than sulfur-free carbon supported catalysts.
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Affiliation(s)
- Peng Yin
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Sciences, University of Science and Technology of China, Hefei, China
| | - Xiao Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Sciences, University of Science and Technology of China, Hefei, China.,Synergetic Innovation of Quantum Information & Quantum Technology, CAS Key Laboratory of Materials for Energy Conversion, and CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, China
| | - Yanfu Ma
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Sciences, University of Science and Technology of China, Hefei, China
| | - Sheng-Qi Chu
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China
| | - Si Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Sciences, University of Science and Technology of China, Hefei, China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, P. R. China
| | - Junling Lu
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Sciences, University of Science and Technology of China, Hefei, China.
| | - Xiao-Jun Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Sciences, University of Science and Technology of China, Hefei, China. .,Synergetic Innovation of Quantum Information & Quantum Technology, CAS Key Laboratory of Materials for Energy Conversion, and CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui, China.
| | - Hai-Wei Liang
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Chemistry and Materials Sciences, University of Science and Technology of China, Hefei, China.
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22
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Gálvez-González LE, Posada-Amarillas A, Paz-Borbón LO. Structure, Energetics, and Thermal Behavior of Bimetallic Re-Pt Clusters. J Phys Chem A 2021; 125:4294-4305. [PMID: 34008972 DOI: 10.1021/acs.jpca.0c11303] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bimetallic Re-Pt is a widely used catalyst in petroleum reforming to obtain high-octane gasoline, but experimental and theoretical information of such systems at the subnanometer scale-namely, as cluster aggregates-is currently lacking. Thus, in this work, we performed a density functional theory-based global optimization study to determine the physicochemical properties of the most stable Re-Pt gas-phase clusters up to six atoms for all compositions. Our results indicate that in these putative global minima (GM) geometries, Re atoms tend to aggregate, while most Pt atoms remain separated from each other. This is even observed in Pt-rich clusters-an indication of the strength of the Re-Re and Re-Pt bonds over pure Pt-Pt ones-due to a strong, directional hybridization of the Re half-filled 5d and the nearly full Pt 5d states. We observe that doping monometallic Pt clusters even with a single Re atom increases their binding energy values and widens the bimetallic cluster highest occupied molecular orbital-lowest unoccupied molecular orbital gap. As catalysis occurs at elevated temperatures, we explore the concept of cluster fluxionality for Re-Pt minima in terms of the calculated isomer occupation probability, P(T). This allows us to quantify the abundance of GM and low-energy isomer configurations as a function of temperature. This is done at size 5 atoms due to the wide isomer observed variety. Our calculations indicate that for pure Re5, the P(T) of the GM configuration substantially decreases after 750 K. Especially, for Re4Pt1, the GM is the dominant structure up to nearly 700 K when the second-energy isomer becomes the stable one. Although no ordering changes are seen for Re3Pt2, Re2Pt3, and Re1Pt4, we do observe a structural transition-between the GM and the second isomer-for pure Pt5 above 1000 K. We expect this type of combined first-principles analysis to add to the overall, continuous understanding of the stability and energetics of ultrafine and highly-dispersed Re-Pt petroleum-reforming catalysts and the scarce available information on this particular bimetallic system.
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Affiliation(s)
- Luis E Gálvez-González
- Programa de Doctorado en Ciencias (Física), División de Ciencias Exactas y Naturales, Universidad de Sonora, Blvd. Luis Encinas y Rosales, Hermosillo, Sonora 83000, Mexico
| | - Alvaro Posada-Amarillas
- Departamento de Investigación en Física, Universidad de Sonora, Blvd. Luis Encinas y Rosales, Hermosillo, Sonora 83000, Mexico
| | - Lauro Oliver Paz-Borbón
- Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
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23
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24
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Nair AS, Pathak B. Computational strategies to address the catalytic activity of nanoclusters. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2020. [DOI: 10.1002/wcms.1508] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Akhil S. Nair
- Discipline of Chemistry Indian Institute of Technology Indore Indore Madhya Pradesh India
| | - Biswarup Pathak
- Discipline of Chemistry Indian Institute of Technology Indore Indore Madhya Pradesh India
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25
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Kim JM, Kim JH, Kim J, Lim Y, Kim Y, Alam A, Lee J, Ju H, Ham HC, Kim JY. Synergetic Structural Transformation of Pt Electrocatalyst into Advanced 3D Architectures for Hydrogen Fuel Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002210. [PMID: 32989883 DOI: 10.1002/adma.202002210] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/16/2020] [Indexed: 06/11/2023]
Abstract
A new direction for developing electrocatalysts for hydrogen fuel cell systems has emerged, based on the fabrication of 3D architectures. These new architectures include extended Pt surface building blocks, the strategic use of void spaces, and deliberate network connectivity along with tortuosity, as design components. Various strategies for synthesis now enable the functional and structural engineering of these electrocatalysts with appropriate electronic, ionic, and electrochemical features. The new architectures provide efficient mass transport and large electrochemically active areas. To date, although there are few examples of fully functioning hydrogen fuel cell devices, these 3D electrocatalysts have the potential to achieve optimal cell performance and durability, exceeding conventional Pt powder (i.e., Pt/C) electrocatalysts. This progress report highlights the various 3D architectures proposed for Pt electrocatalysts, advances made in the fabrication of these structures, and the remaining technical challenges. Attempts to develop design rules for 3D architectures and modeling, provide insights into their achievable and potential performance. Perspectives on future developments of new multiscale designs are also discussed along with future study directions.
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Affiliation(s)
- Jong Min Kim
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Materials Architecturing Research Center, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Joo-Hyung Kim
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- School of Materials Science and Engineering, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Jun Kim
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Youngjoon Lim
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Yongmin Kim
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
| | - Afroz Alam
- Department of Mechanical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Jaeseung Lee
- Department of Mechanical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Hyunchul Ju
- Department of Mechanical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Hyung Chul Ham
- Department of Chemical Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Jin Young Kim
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, Republic of Korea
- Graduate School of Energy and Environment (KU-KIST Green School), Korea University, Seoul, 02841, Republic of Korea
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26
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Quinson J, Jensen KM. From platinum atoms in molecules to colloidal nanoparticles: A review on reduction, nucleation and growth mechanisms. Adv Colloid Interface Sci 2020; 286:102300. [PMID: 33166723 DOI: 10.1016/j.cis.2020.102300] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/25/2020] [Accepted: 10/26/2020] [Indexed: 12/24/2022]
Abstract
Platinum (Pt) is one of the most studied materials in catalysis today and considered for a wide range of applications: chemical synthesis, energy conversion, air treatment, water purification, sensing, medicine etc. As a limited and non-renewable resource, optimized used of Pt is key. Nanomaterial design offers multiple opportunities to make the most of Pt resources down to the atomic scale. In particular, colloidal syntheses of Pt nanoparticles are well documented and simple to implement, which accounts for the large interest in research and development. For further breakthroughs in the design of Pt nanomaterials, a deeper understanding of the intricate synthesis-structures-properties relations of Pt nanoparticles must be obtained. Understanding how Pt nanoparticles form from molecular precursors is both a challenging and rewarding area of investigation. It is directly relevant to develop improved Pt nanomaterials but is also a source of inspiration to design other precious metal nanostructures. Here, we review the current understanding of Pt nanoparticle formation. This review is aimed at readers with interest in Pt nanoparticles in general and their colloidal syntheses in particular. Readers with a strongest interest on the study of nanomaterial formation will find here the case study of Pt. The preferred model systems and characterization techniques used to perform the study of Pt nanoparticle syntheses are discussed. In light of recent achievements, further direction and areas of research are proposed.
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27
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Xu H, Molayem M, Springborg M. Theoretical study of the structural and energetic properties of platinum clusters with up to 60 atoms. Struct Chem 2020. [DOI: 10.1007/s11224-020-01679-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Yeh JY, Matsagar BM, S. Chen S, Sung HL, Tsang DC, Li YP, Wu KCW. Synergistic effects of Pt-embedded, MIL-53-derived catalysts (Pt@Al2O3) and NaBH4 for water-mediated hydrogenolysis of biomass-derived furfural to 1,5-pentanediol at near-ambient temperature. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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Hou D, Grajciar L, Nachtigall P, Heard CJ. Origin of the Unusual Stability of Zeolite-Encapsulated Sub-Nanometer Platinum. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01344] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dianwei Hou
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
| | - Lukáš Grajciar
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
| | - Petr Nachtigall
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
| | - Christopher J. Heard
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Prague 2 128 43, Czech Republic
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30
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31
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Affiliation(s)
- Jim De Yoreo
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
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32
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Wang F, Li T, Shi Y, Jiao H. Molybdenum carbide supported metal catalysts (Mn/MoxC; M = Co, Ni, Cu, Pd, Pt) – metal and surface dependent structure and stability. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00504e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The surface and metal-dependent morphologies and energies of molybdenum carbide supported metal catalysts (Mn/MoxC; M = Co, Ni, Cu, Pd, Pt) have been systematically investigated on the basis of periodic density functional theory computations.
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Affiliation(s)
- Fan Wang
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rosteock
- Germany
| | - Teng Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yun Shi
- School of Chemistry & Chemical Engineering
- Linyi University
- Linyi 276000
- China
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rosteock
- Germany
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33
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Borges LR, Lopez‐Castillo A, Meira DM, Gallo JMR, Zanchet D, Bueno JMC. Effect of the Pt Precursor and Loading on the Structural Parameters and Catalytic Properties of Pt/Al
2
O
3. ChemCatChem 2019. [DOI: 10.1002/cctc.201900092] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lais R. Borges
- Department of Chemical EngineeringFederal University of São Carlos Rod. Washington Luis s/n, km 235, P.O. Box 676 13565-905 São Carlos-SP Brazil
| | - Alejandro Lopez‐Castillo
- Department of ChemistryFederal University of São Carlos Rod. Washington Luis s/n, km 235, P.O. Box 676 13565-905 São Carlos-SP Brazil
| | - Debora M. Meira
- Department of Chemical EngineeringFederal University of São Carlos Rod. Washington Luis s/n, km 235, P.O. Box 676 13565-905 São Carlos-SP Brazil
| | - Jean Marcel R. Gallo
- Department of ChemistryFederal University of São Carlos Rod. Washington Luis s/n, km 235, P.O. Box 676 13565-905 São Carlos-SP Brazil
| | - Daniela Zanchet
- Institute of ChemistryCampinas State University Rod. Washington Luis s/n, km 235, P.O. Box 676 13565-905 São Carlos-SP Brazil
| | - José Maria C. Bueno
- Department of Chemical EngineeringFederal University of São Carlos Rod. Washington Luis s/n, km 235, P.O. Box 676 13565-905 São Carlos-SP Brazil
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34
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35
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Poidevin C, Paciok P, Heggen M, Auer AA. High resolution transmission electron microscopy and electronic structure theory investigation of platinum nanoparticles on carbon black. J Chem Phys 2019; 150:041705. [DOI: 10.1063/1.5047666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Corentin Poidevin
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim an der Ruhr, Germany
| | - Paul Paciok
- Ernst Ruska-Centre for Microscopy and Spectroscopy With Electrons and Peter Grünberg Institute, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Marc Heggen
- Ernst Ruska-Centre for Microscopy and Spectroscopy With Electrons and Peter Grünberg Institute, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Alexander A. Auer
- Max-Planck-Institut für Kohlenforschung, 45470 Mülheim an der Ruhr, Germany
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36
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Imaoka T, Toyonaga T, Morita M, Haruta N, Yamamoto K. Isomerizations of a Pt 4 cluster revealed by spatiotemporal microscopic analysis. Chem Commun (Camb) 2019; 55:4753-4756. [PMID: 30897188 DOI: 10.1039/c9cc00530g] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We now report the first direct observation of the fluxional nature in which the four-atomic platinum cluster (Pt4) randomly walks through several isomers. Time-lapse analysis by a Cs-corrected transmission electron microscope allowed us to acquire the atomic coordinates at a sub-angstrom space resolution and 0.2 s time resolution for each cluster isomer. The analysis revealed that the isomerization follows a simple first-order kinetic model.
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Affiliation(s)
- Takane Imaoka
- Laboratory for Chemistry and Life Science (CLS), Institute of Innovative Research (IIR), Tokyo Institute of Technology, Yokohama 226-8503, Japan.
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37
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Gao K, Zhang XR, Yu ZC, Huo PY. Structure stability and electronic properties of Pt Ir (m + n = 2–7) clusters: A DFT study. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Pt Metal Supported and Pt4+ Doped La1−xSrxCoO3: Non-performance of Pt4+ and Reactivity Differences with Pt Metal. Catal Letters 2018. [DOI: 10.1007/s10562-018-2408-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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39
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Probing the structural evolution and bonding properties of PtnC2−/0 (n = 1–7) clusters by density functional calculations. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.03.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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41
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Shahed SMF, Beniya A, Hirata H, Watanabe Y. Morphology of size-selected Pt n clusters on CeO 2(111). J Chem Phys 2018; 148:114702. [PMID: 29566501 DOI: 10.1063/1.5017906] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Supported Pt catalysts and ceria are well known for their application in automotive exhaust catalysts. Size-selected Pt clusters supported on a CeO2(111) surface exhibit distinct physical and chemical properties. We investigated the morphology of the size-selected Ptn (n = 5-13) clusters on a CeO2(111) surface using scanning tunneling microscopy at room temperature. Ptn clusters prefer a two-dimensional morphology for n = 5 and a three-dimensional (3D) morphology for n ≥ 6. We further observed the preference for a 3D tri-layer structure when n ≥ 10. For each cluster size, we quantitatively estimated the relative fraction of the clusters for each type of morphology. Size-dependent morphology of the Ptn clusters on the CeO2(111) surface was attributed to the Pt-Pt interaction in the cluster and the Pt-O interaction between the cluster and CeO2(111) surface. The results obtained herein provide a clear understanding of the size-dependent morphology of the Ptn clusters on a CeO2(111) surface.
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Affiliation(s)
| | - Atsushi Beniya
- Toyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Hirohito Hirata
- Toyota Motor Corporation, 1200 Mishuku, Susono, Shizuoka 410-1193, Japan
| | - Yoshihide Watanabe
- Toyota Central R&D Labs, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
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42
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Hernández E, Bertin V, Soto J, Miralrio A, Castro M. Catalytic Reduction of Nitrous Oxide by the Low-Symmetry Pt8 Cluster. J Phys Chem A 2018; 122:2209-2220. [DOI: 10.1021/acs.jpca.7b11055] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Erendida Hernández
- Departamento
de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, México, D.F. 09340, Mexico
| | - Virineya Bertin
- Departamento
de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, México, D.F. 09340, Mexico
| | - Jorge Soto
- Departamento
de Física, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Del. Coyoacán, 04510 México D.F., Mexico
| | - Alan Miralrio
- Departamento
de Física y Química Teórica, DEPg, Facultad de
Química, Universidad Nacional Autónoma de México (UNAM), Del. Coyoacán, 04510 México D.F., Mexico
| | - Miguel Castro
- Departamento
de Física y Química Teórica, DEPg, Facultad de
Química, Universidad Nacional Autónoma de México (UNAM), Del. Coyoacán, 04510 México D.F., Mexico
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43
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Liu J, Jiao M, Lu L, Barkholtz HM, Li Y, Wang Y, Jiang L, Wu Z, Liu DJ, Zhuang L, Ma C, Zeng J, Zhang B, Su D, Song P, Xing W, Xu W, Wang Y, Jiang Z, Sun G. High performance platinum single atom electrocatalyst for oxygen reduction reaction. Nat Commun 2017; 8:15938. [PMID: 28737170 PMCID: PMC5527280 DOI: 10.1038/ncomms15938] [Citation(s) in RCA: 282] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 05/08/2017] [Indexed: 12/22/2022] Open
Abstract
For the large-scale sustainable implementation of polymer electrolyte membrane fuel cells in vehicles, high-performance electrocatalysts with low platinum consumption are desirable for use as cathode material during the oxygen reduction reaction in fuel cells. Here we report a carbon black-supported cost-effective, efficient and durable platinum single-atom electrocatalyst with carbon monoxide/methanol tolerance for the cathodic oxygen reduction reaction. The acidic single-cell with such a catalyst as cathode delivers high performance, with power density up to 680 mW cm−2 at 80 °C with a low platinum loading of 0.09 mgPt cm−2, corresponding to a platinum utilization of 0.13 gPt kW−1 in the fuel cell. Good fuel cell durability is also observed. Theoretical calculations reveal that the main effective sites on such platinum single-atom electrocatalysts are single-pyridinic-nitrogen-atom-anchored single-platinum-atom centres, which are tolerant to carbon monoxide/methanol, but highly active for the oxygen reduction reaction. High-performance electrocatalysts for the oxygen reduction reaction (ORR) typically use platinum (Pt), however its high cost is a hindrance to commercial scale up. Here, the authors report a cost-effective, efficient and durable Pt single-atom electrocatalyst for ORR with a Pt utilization of 0.13 gPt kW−1 in a fuel cell.
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Affiliation(s)
- Jing Liu
- State Key Laboratory of Electroanalytical Chemistry, Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Menggai Jiao
- University of Chinese Academy of Sciences, Beijing 100049, China.,State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Lanlu Lu
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Heather M Barkholtz
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Yuping Li
- Division of Fuel Cell and Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Ying Wang
- College of Chemistry and Molecular Sciences, Hubei Key Lab of Electrochemical Power Sources, Wuhan University, Wuhan 430072, China
| | - Luhua Jiang
- Division of Fuel Cell and Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zhijian Wu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Di-Jia Liu
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Lin Zhuang
- College of Chemistry and Molecular Sciences, Hubei Key Lab of Electrochemical Power Sources, Wuhan University, Wuhan 430072, China
| | - Chao Ma
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jie Zeng
- Department of Chemical Physics, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Dangsheng Su
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.,Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, Berlin 14195, Germany
| | - Ping Song
- State Key Laboratory of Electroanalytical Chemistry, Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Wei Xing
- State Key Laboratory of Electroanalytical Chemistry, Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Weilin Xu
- State Key Laboratory of Electroanalytical Chemistry, Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Ying Wang
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zheng Jiang
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Gongquan Sun
- Division of Fuel Cell and Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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44
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σ-Holes on Transition Metal Nanoclusters and Their Influence on the Local Lewis Acidity. CRYSTALS 2017. [DOI: 10.3390/cryst7070222] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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45
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Xi Z, Lv H, Erdosy DP, Su D, Li Q, Yu C, Li J, Sun S. Atomic scale deposition of Pt around Au nanoparticles to achieve much enhanced electrocatalysis of Pt. NANOSCALE 2017; 9:7745-7749. [PMID: 28574074 DOI: 10.1039/c7nr02711g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report an electrochemical method to deposit atomic scale Pt on a 5 nm Au nanoparticle (NP) surface in N2-saturated 0.5 M H2SO4. Pt is provided by the Pt wire counter electrode via one-step Pt wire oxidation, dissolution, and deposition realized by controlled electrochemical scanning. Scanning from 0.6-1.0 V (vs. RHE) for 10 000 cycles gives Au98.2Pt1.8, which serves as an excellent catalyst for the formic acid oxidation reaction, showing 41 times higher specific activity (20.19 mA cm-2) and 25 times higher mass activity (10.80 A mgPt-1) with much better CO-tolerance and stability than commercial Pt. Our work demonstrates a unique strategy to minimize the use of Pt as a catalyst for electrochemical reactions.
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Affiliation(s)
- Zheng Xi
- Department of Chemistry, Brown University, Providence, Rhode Island 02912, USA.
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46
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Low-lying Pt n cluster structures (n = 6–10) from global optimizations based on DFT potential energy surfaces: Sensitivity of the chemical ordering with the functional. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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47
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Origin of high oxygen reduction reaction activity of Pt 12 and strategy to obtain better catalyst using sub-nanosized Pt-alloy clusters. Sci Rep 2017; 7:45381. [PMID: 28349985 PMCID: PMC5368974 DOI: 10.1038/srep45381] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 02/22/2017] [Indexed: 12/22/2022] Open
Abstract
In the present study, methods to enhance the oxygen reduction reaction (ORR) activity of sub-nanosized Pt clusters were investigated in a theoretical manner. Using ab initio molecular dynamics and Monte Carlo simulations based on density functional theory, we have succeeded in determining the origin of the superior ORR activity of Pt12 compared to that of Pt13. That is, it was clarified that the electronic structure of Pt12 fluctuates to a greater extent compared to that of Pt13, which leads to stronger resistance against catalyst poisoning by O/OH. Based on this conclusion, a set of sub-nanosized Pt-alloy clusters was also explored to find catalysts with better ORR activities and lower financial costs. It was suggested that Ga4Pt8, Ge4Pt8, and Sn4Pt8 would be good candidates for ORR catalysts.
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48
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Chaves AS, Piotrowski MJ, Da Silva JLF. Evolution of the structural, energetic, and electronic properties of the 3d, 4d, and 5d transition-metal clusters (30 TMn systems for n = 2–15): a density functional theory investigation. Phys Chem Chem Phys 2017; 19:15484-15502. [DOI: 10.1039/c7cp02240a] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Subnanometric transition-metal (TM) clusters have attracted great attention due to their unexpected physical and chemical properties, leastwise compared to their bulk counterparts.
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Affiliation(s)
- Anderson S. Chaves
- Gleb Wataghin Institute of Physics
- University of Campinas
- Campinas
- Brazil
- São Carlos Institute of Chemistry
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49
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Takahashi L, Takahashi K. Reactivity of Two-Dimensional Au9, Pt9, and Au18Pt18 against Common Molecules. Inorg Chem 2016; 55:9410-6. [PMID: 27608367 DOI: 10.1021/acs.inorgchem.6b01635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Adsorption of common molecules over two-dimensional Au9, Pt9, and Au18Pt18 is investigated with implementation of first-principles calculations. In general, it is found that Pt9 and Au18Pt18 exhibit low adsorption energies where Au18Pt18 preserves the structural integrity of the molecule and surface. In particular, adsorption of molecules onto Au18Pt18 frequently results in low adsorption energies and high reactivity with minor surface reconstruction of Au18Pt18 and average bond lengths of molecules. The decrease in adsorption energy can be attributed to the presence of platinum, while gold can be considered responsible for structural stability. In addition, molecule dissociation is observed in the cases of H2, HCl, CH4, SO, and SO2 when Pt atoms are involved. Thus, two-dimensional Au9, Pt9, and Au18Pt18 show low adsorption energies against common molecules, reflecting adsorption energies observed in small Au and Pt clusters. These results demonstrate that Au18Pt18 can successfully utilize the low adsorption energies associated with platinum while preserving the integrity of the surface structure using gold atoms, making it possible to adsorb desired molecules using select areas of the Au18Pt18 surface.
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Affiliation(s)
| | - Keisuke Takahashi
- Center for Materials Research by Information Integration (CMI2), National Institute for Materials Science (NIMS) , 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan.,Graduate School of Engineering, Hokkaido University , N-13, W-8, Sapporo 060-8628, Japan
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50
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Wei GF, Liu ZP. Subnano Pt Particles from a First-Principles Stochastic Surface Walking Global Search. J Chem Theory Comput 2016; 12:4698-706. [DOI: 10.1021/acs.jctc.6b00556] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guang-Feng Wei
- Shanghai
Key Laboratory of Chemical Assessment and Sustainability, Department
of Chemistry, Tongji University, Shanghai 200092, China
- Collaborative
Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Key Laboratory of
Computational Physical Science (Ministry of Education), Department
of Chemistry, Fudan University, Shanghai 200433, China
| | - Zhi-Pan Liu
- Collaborative
Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory
of Molecular Catalysis and Innovative Materials, Key Laboratory of
Computational Physical Science (Ministry of Education), Department
of Chemistry, Fudan University, Shanghai 200433, China
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