1
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Samanta S, Paul S, Debnath T. Obtaining Ligand-Free Aqueous Au-Nanoparticles Using Reversible CsPbBr 3 ↔ Au@CsPbBr 3 Nanocrystal Transformation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311712. [PMID: 38258404 DOI: 10.1002/smll.202311712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Indexed: 01/24/2024]
Abstract
Water-hexane interfacial preparation of photostable Au@CsPbBr3 (Au@CPB) hybrid nanocrystals (NCs) from pure CsPbBr3 (CPB) NCs is reported, with the coexistence of exciton and localized surface plasmon resonance with equal dominance. This enables strong exciton-plasmon coupling in these plasmonic perovskite NCs where not only the photoluminescence is quenched intrinsically due to ultrafast charge separation, but also the light absorption property increases significantly, covering the entire visible region. Using a controlled interfacial strategy, a reversible chemical transformation between CPB and Au@CPB NCs is shown, with the simultaneous eruption of larger-size ligand-free aqueous Au nanoparticles (NPs). An adsorption-desorption mechanism is proposed for the reversible transformation, while the overgrowth reaction of the Au NPs passes through the Au aggregation intermediate. This study further shows that the plasmonic Au@CPB hybrid NCs as well as ligand-free Au NPs exhibit clear surface enhanced Raman scattering (SERS) effect of a commercially available probe molecule. Overall, the beautiful interfacial chemistry delivers two independent plasmonic materials, i.e., Au@CPB NCs and ligand-free aqueous Au NPs, which may find important implications in photocatalytic and biomedical applications.
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Affiliation(s)
- Subarna Samanta
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Sujay Paul
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Tushar Debnath
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
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2
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Wang J, Li L, Jiang S, Young DJ, Ren ZG, Li HX. Covalent Grafting of a Nickel Thiolate Catalyst onto Covalent Organic Frameworks for Increased Photocatalytic Activity. CHEMSUSCHEM 2023; 16:e202201943. [PMID: 36478181 DOI: 10.1002/cssc.202201943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Covalent organic frameworks (COFs) have recently emerged as prospective photoactive materials with noble Pt as a cocatalyst for photocatalytic hydrogen evolution. In this work, a series of SH-group-functionalized covalent organic frameworks, TpPa-1-SH-X, is prepared by reaction of p-phenylenediamine (Pa) and 1,3,5-triformylphloroglucinol (Tp) with p-NH2 C6 H4 SH as a modulating agent. The reaction of TpPa-1-SH-X with NiII acetylacetonate Ni(acac)2 gave nickel thiolate-immobilized TpPa-1 (TpPa-1-SNi-X). The highest hydrogen evolution rate was 10.87 mmol h-1 g-1 , which was an enhancement of 16.47, 3.83, and 1.84 times than that of the parent TpPa-1, covalent-bond-free [(p-NH2 C6 H4 S)2 Ni]n /TpPa-1-SH-10, and 3 wt % Pt-deposited TpPa-1, respectively. This enhanced photocatalytic hydrogen evolution is ascribed to enhanced crystallinity, the use of NiII thiolate as a cocatalyst and covalent bonding between the cocatalyst and TpPa-1.
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Affiliation(s)
- Jixian Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
| | - Lei Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
| | - Shan Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
| | - David J Young
- College of Engineering, IT and Environment, Charles Darwin University, Darwin, NT-0909, Australia
| | - Zhi-Gang Ren
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
| | - Hong-Xi Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123 (R. P., China
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3
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Ben-Shahar Y, Stone D, Banin U. Rich Landscape of Colloidal Semiconductor-Metal Hybrid Nanostructures: Synthesis, Synergetic Characteristics, and Emerging Applications. Chem Rev 2023; 123:3790-3851. [PMID: 36735598 PMCID: PMC10103135 DOI: 10.1021/acs.chemrev.2c00770] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Nanochemistry provides powerful synthetic tools allowing one to combine different materials on a single nanostructure, thus unfolding numerous possibilities to tailor their properties toward diverse functionalities. Herein, we review the progress in the field of semiconductor-metal hybrid nanoparticles (HNPs) focusing on metal-chalcogenides-metal combined systems. The fundamental principles of their synthesis are discussed, leading to a myriad of possible hybrid architectures including Janus zero-dimensional quantum dot-based systems and anisotropic quasi 1D nanorods and quasi-2D platelets. The properties of HNPs are described with particular focus on emergent synergetic characteristics. Of these, the light-induced charge-separation effect across the semiconductor-metal nanojunction is of particular interest as a basis for the utilization of HNPs in photocatalytic applications. The extensive studies on the charge-separation behavior and its dependence on the HNPs structural characteristics, environmental and chemical conditions, and light excitation regime are surveyed. Combining the advanced synthetic control with the charge-separation effect has led to demonstration of various applications of HNPs in different fields. A particular promise lies in their functionality as photocatalysts for a variety of uses, including solar-to-fuel conversion, as a new type of photoinitiator for photopolymerization and 3D printing, and in novel chemical and biomedical uses.
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Affiliation(s)
- Yuval Ben-Shahar
- Department of Physical Chemistry, Israel Institute for Biological Research, P.O. Box 19, Ness Ziona74100, Israel
| | - David Stone
- The Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem91904, Israel
| | - Uri Banin
- The Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem91904, Israel
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4
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Kim H, Park H, Kang M, Park JY. Plasmonic hot carrier-driven photoelectrochemical water splitting on antenna–reactor Pt/Ag/TiO 2 Schottky nanodiodes. J Chem Phys 2022; 157:084701. [DOI: 10.1063/5.0097713] [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
Plasmonic photoelectrochemical (PEC) water splitting has excited immense interest, as it can overcome the intrinsic limitations of semiconductors, in terms of light absorption, by the localized-surface plasmon resonances effect. Here, to get insight into the role of plasmonic hot carriers in plasmonic water splitting, a rational design of an antenna–reactor type Pt/Ag/TiO2 metal–semiconductor Schottky nanodiode was fabricated and used as a photoanode. Using the designed PEC cell system combined with the Pt/Ag/TiO2 nanodiode, we show that the plasmonic hot carriers excited from Ag were utilized for the oxygen (O2) evolution reaction and, consequently, had a decisive role in the enhancement of the photocatalytic efficiency. These results were supported by finite-difference time-domain simulations, and the faradaic efficiency was measured by the amount of actual gas produced. Therefore, this study provides a deep understanding of the dynamics and mechanisms of plasmonic hot carriers in plasmonic-assisted PEC water splitting.
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Affiliation(s)
- Heeyoung Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
| | - Hyewon Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
| | - Mincheol Kang
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
| | - Jeong Young Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
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5
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Su J, Su H, Chen J, Li X. Semiconductor‐based nanocomposites for selective organic synthesis. NANO SELECT 2021. [DOI: 10.1002/nano.202100065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Affiliation(s)
- Juan Su
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai China
| | - Hui Su
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai China
| | - Jie‐Sheng Chen
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai China
| | - Xin‐Hao Li
- School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai China
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6
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Su L, Wang P, Ma X, Wang J, Zhan S. Regulating Local Electron Density of Iron Single Sites by Introducing Nitrogen Vacancies for Efficient Photo‐Fenton Process. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108937] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Lina Su
- MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin 300350 P. R. China
| | - Pengfei Wang
- Tianjin Key Laboratory of Clean Energy and Pollutant Control School of Energy and Environmental Engineering Hebei University of Technology Tianjin 300401 P. R. China
| | - Xiaoli Ma
- College of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830000 P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116000 P. R. China
| | - Sihui Zhan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin 300350 P. R. China
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7
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Su L, Wang P, Ma X, Wang J, Zhan S. Regulating Local Electron Density of Iron Single Sites by Introducing Nitrogen Vacancies for Efficient Photo-Fenton Process. Angew Chem Int Ed Engl 2021; 60:21261-21266. [PMID: 34370369 DOI: 10.1002/anie.202108937] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Indexed: 11/11/2022]
Abstract
The activity of heterogeneous photocatalytic H2 O2 activation in Fenton-like processes is closely related to the local electron density of reaction centre atoms. However, the recombination of electron-hole pairs arising from random charge transfer greatly restricts the oriented electron delivery to active center. Here we show a defect engineered iron single atom photocatalyst (Fe1 -Nv /CN, single Fe atoms dispersed on carbon nitride with abundant nitrogen vacancies) for the activation of H2 O2 under visible light irradiation. Based on DFT calculations and transient absorption spectroscopy results, the engineered nitrogen vacancies serve as the electron trap sites, which can directionally drive the electrons to concentrate on Fe atoms. The formation of highly concentrated electrons density at Fe sites significantly improves the H2 O2 conversion efficiency. Therefore, the optimized single atom catalyst exhibiting a higher ciprofloxacin degradation activity, which was up to 18 times that of pristine CN.
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Affiliation(s)
- Lina Su
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
| | - Pengfei Wang
- Tianjin Key Laboratory of Clean Energy and Pollutant Control, School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin, 300401, P. R. China
| | - Xiaoli Ma
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830000, P. R. China
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116000, P. R. China
| | - Sihui Zhan
- MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300350, P. R. China
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8
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Zhang W, Chen Y, Zhang G, Tan X, Ji Q, Wang Z, Liu H, Qu J. Hot‐Electron‐Induced Photothermal Catalysis for Energy‐Dependent Molecular Oxygen Activation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Wei Zhang
- Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yu Chen
- Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Gong Zhang
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
| | - Xiao Tan
- Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
- Guilin University of Technology Guilin 541006 China
| | - Qinghua Ji
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
| | - Zhaowu Wang
- School of Physics and Engineering Henan University of Science and Technology Henan Key Laboratory of Photoelectric Energy Storage Materials and Applications Luoyang Henan 471023 China
| | - Huijuan Liu
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
- University of Chinese Academy of Sciences Beijing 100049 China
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9
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Zhang W, Chen Y, Zhang G, Tan X, Ji Q, Wang Z, Liu H, Qu J. Hot‐Electron‐Induced Photothermal Catalysis for Energy‐Dependent Molecular Oxygen Activation. Angew Chem Int Ed Engl 2021; 60:4872-4878. [DOI: 10.1002/anie.202012306] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Wei Zhang
- Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yu Chen
- Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Gong Zhang
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
| | - Xiao Tan
- Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
- Guilin University of Technology Guilin 541006 China
| | - Qinghua Ji
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
| | - Zhaowu Wang
- School of Physics and Engineering Henan University of Science and Technology Henan Key Laboratory of Photoelectric Energy Storage Materials and Applications Luoyang Henan 471023 China
| | - Huijuan Liu
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
| | - Jiuhui Qu
- Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China
- Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing 100084 China
- University of Chinese Academy of Sciences Beijing 100049 China
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10
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Shen B, Huang L, Shen J, Meng L, Kluender EJ, Wolverton C, Tian B, Mirkin CA. Synthesis of Metal-Capped Semiconductor Nanowires from Heterodimer Nanoparticle Catalysts. J Am Chem Soc 2020; 142:18324-18329. [PMID: 33078944 DOI: 10.1021/jacs.0c09222] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Semiconductor nanowires (NWs) capped with metal nanoparticles (NPs) show multifunctional and synergistic properties, which are important for applications in the fields of catalysis, photonics, and electronics. Conventional colloidal syntheses of this class of hybrid structures require complex sequential seeded growth, where each section requires its own set of growth conditions, and methods for preparing such wires are not universal. Here, we report a new and general method for synthesizing metal-semiconductor nanohybrids based on particle catalysts, prepared by scanning probe block copolymer lithography, and chemical vapor deposition. In this process, metallic heterodimer NPs were used as catalysts for NW growth to form semiconductor NWs capped with metallic particles (Au, Ag, Co, Ni). Interestingly, the growth processes for NWs on NPs are regioselective and controlled by the chemical composition of the metallic heterodimer used. Using a systematic experimental approach, paired with density functional theory calculations, we were able to postulate three different growth modes, one without precedent.
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11
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Zheng G, Mourdikoudis S, Zhang Z. Plasmonic Metallic Heteromeric Nanostructures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002588. [PMID: 32762017 DOI: 10.1002/smll.202002588] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/06/2020] [Indexed: 06/11/2023]
Abstract
Binary, ternary, and other high-order plasmonic heteromers possess remarkable physical and chemical properties, enabling them to be used in numerous applications. The seed-mediated approach is one of the most promising and versatile routes to produce plasmonic heteromers. Selective growth of one or multiple domains on desired sites of noble metal, semiconductor, or magnetic seeds would form desired heteromeric nanostructures with multiple functionalities and synergistic effects. In this work, the challenges for the synthetic approaches are discussed with respect to tuning the thermodynamics, as well as the kinetic properties (e.g., pH, temperature, injection rate, among others). Then, plasmonic heteromers with their structure advantages displaying unique activities compared to other hybrid nanostructures (e.g., core-shell, alloy) are highlighted. Some of the main most recent applications of plasmonic heteromers are also presented. Finally, perspectives for further exploitation of plasmonic heteromers are demonstrated. The goal of this work is to provide the current know-how on the synthesis routes of plasmonic heteromers in a summarized manner, so as to achieve a better understanding of the resulting properties and to gain an improved control of their performances and extend their breadth of applications.
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Affiliation(s)
- Guangchao Zheng
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
| | - Stefanos Mourdikoudis
- Biophysics Group, Department of Physics and Astronomy, University College London (UCL), London, WC1E 6BT, UK
- UCL Healthcare Biomagnetic and Nanomaterials Laboratories, London, W1S 4BS, UK
| | - Zhicheng Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
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12
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Kontoleta E, Tsoukala A, Askes SHC, Zoethout E, Oksenberg E, Agrawal H, Garnett EC. Using Hot Electrons and Hot Holes for Simultaneous Cocatalyst Deposition on Plasmonic Nanostructures. ACS APPLIED MATERIALS & INTERFACES 2020; 12:35986-35994. [PMID: 32672034 PMCID: PMC7430944 DOI: 10.1021/acsami.0c04941] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Hot electrons generated in metal nanoparticles can drive chemical reactions and selectively deposit cocatalyst materials on the plasmonic hotspots, the areas where the decay of plasmons takes place and the hot electrons are created. While hot electrons have been extensively used for nanomaterial formation, the utilization of hot holes for simultaneous cocatalyst deposition has not yet been explored. Herein, we demonstrate that hot holes can drive an oxidation reaction for the deposition of the manganese oxide (MnOx) cocatalyst on different plasmonic gold (Au) nanostructures on a thin titanium dioxide (TiO2) layer, excited at their surface plasmon resonance. An 80% correlation between the hot-hole deposition sites and the simulated plasmonic hotspot location is showed when considering the typical hot-hole diffusion length. Simultaneous deposition of more than one cocatalyst is also achieved on one of the investigated plasmonic systems (Au plasmonic nanoislands) through the hot-hole oxidation of a manganese salt and the hot-electron reduction of a platinum precursor in the same solution. These results add more flexibility to the use of hot carriers and open up the way for the design of complex photocatalytic nanostructures.
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Affiliation(s)
- Evgenia Kontoleta
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
| | - Alexandra Tsoukala
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
| | - Sven H. C. Askes
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
| | - Erwin Zoethout
- Dutch
Institute for Fundamental Energy Research (DIFFER), De Zaale 20, 5612 AJ Eindhoven, Netherlands
| | - Eitan Oksenberg
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
| | - Harshal Agrawal
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
| | - Erik C. Garnett
- Center
for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
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13
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Recent Studies on Multifunctional Electrocatalysts for Fuel Cell by Various Nanomaterials. Catalysts 2020. [DOI: 10.3390/catal10060621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Based on nanotechnology, nanocomposites are synthesized using nanoparticles (NP), which have some advantages in terms of multifunctional, economic, and environmental factors. In this review, we discuss the inorganic applications as well as catalytic applications of NPs. Recently, structural defects, heteroatomic doping, and heterostructures of such efficient ideal catalysts and their application as multifunctional catalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in water splitting. It has been verified that the catalysts used in oxygen reduction reaction and OER can be used effectively in metal/air batteries. Moreover, it has been reported that high-efficiency catalysts are required to implement urea oxidation reaction (UOR), which involves a six-electron reaction, as an electrochemical reaction. We expect that this review can be applied to sustainable and diverse electrochemistry fields.
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14
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Gellé A, Jin T, de la Garza L, Price GD, Besteiro LV, Moores A. Applications of Plasmon-Enhanced Nanocatalysis to Organic Transformations. Chem Rev 2019; 120:986-1041. [PMID: 31725267 DOI: 10.1021/acs.chemrev.9b00187] [Citation(s) in RCA: 169] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Alexandra Gellé
- Centre for Green Chemistry and Catalysis, Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Tony Jin
- Centre for Green Chemistry and Catalysis, Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Luis de la Garza
- Centre for Green Chemistry and Catalysis, Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Gareth D. Price
- Centre for Green Chemistry and Catalysis, Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Lucas V. Besteiro
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
- Centre Énergie Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel Boulet, Varennes, Quebec J3X 1S2, Canada
| | - Audrey Moores
- Centre for Green Chemistry and Catalysis, Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- Department of Materials Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 0C5, Canada
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15
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Wu P, Wu Z, Mullins DR, Yang SZ, Han X, Zhang Y, Foo GS, Li H, Zhu W, Dai S, Zhu H. Promoting Pt catalysis for CO oxidation via the Mott-Schottky effect. NANOSCALE 2019; 11:18568-18574. [PMID: 31287484 DOI: 10.1039/c9nr04055b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
CO oxidation is an important reaction both experimentally and industrially, and its performance is usually dominated by the charge states of catalysts. For example, CO oxidation on the platinum (Pt) surface requires a properly charged state for the balance of adsorption and activation of CO and O2. Here, we present "Mott-Schottky modulated catalysis" on Pt nanoparticles (NPs) via an electron-donating carbon nitride (CN) support with a tunable Fermi level. We demonstrate that properly-charged Pt presents an excellent catalytic CO oxidation activity with an initial conversion temperature as low as 25 °C and total CO conversion below 85 °C. The tunable electronic structure of Pt NPs, which is regulated by the Fermi level of CN, is a key factor in dominating the catalytic performance. This "Mott-Schottky modulated catalysis" concept may be extended to maneuver the charge state on other metal catalysts for targeted catalytic reactions.
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Affiliation(s)
- Peiwen Wu
- School of Chemistry and Chemical Engineering; Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, China. and Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Zili Wu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - David R Mullins
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Shi-Ze Yang
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA
| | - Xue Han
- Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
| | - Yafen Zhang
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Guo Shiou Foo
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Huaming Li
- School of Chemistry and Chemical Engineering; Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, China.
| | - Wenshuai Zhu
- School of Chemistry and Chemical Engineering; Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, China.
| | - Sheng Dai
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA.
| | - Huiyuan Zhu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37830, USA. and Chemical Engineering, Virginia Tech, Blacksburg, VA 24061, USA.
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16
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Huang Z, Zhang Y, Dai H, Wang Y, Qin C, Chen W, Zhou Y, Yuan S. Highly dispersed Pd nanoparticles hybridizing with 3D hollow-sphere g-C3N4 to construct 0D/3D composites for efficient photocatalytic hydrogen evolution. J Catal 2019. [DOI: 10.1016/j.jcat.2019.09.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Chen D, Wang A, Li H, Abad Galán L, Su C, Yin Z, Massi M, Suvorova A, Saunders M, Li J, Sitt A, Jia G. Colloidal quasi-one-dimensional dual semiconductor core/shell nanorod couple heterostructures with blue fluorescence. NANOSCALE 2019; 11:10190-10197. [PMID: 31112179 DOI: 10.1039/c9nr02443c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Herein we report a nanorod couple heterostructure made of dual semiconductors, in which two parallelly aligned ZnSe nanorods are connected by the growth of ZnS on both end and side facets, producing hetero-ZnS (short arms)-ZnSe (long arms)/ZnS shell nanorod couples. As evidenced by electronic structure studies, both experimental and theoretical, such core/shell nanorod couple heterostructures can act as a platform to precisely tailor the quantum confinement of charge carriers between the constituting components within a single nano-object, generating blue fluorescence after the overgrowth of an alloyed ZnCdS layer on the heterostructures. We foresee the mechanistic insights gained and electronic structures revealed in this work would shed light on the rational design of more complex heterostructures with novel functionalities.
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Affiliation(s)
- Dechao Chen
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, GPO Box U1987, WA 6845, Australia.
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18
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Tang Y, Sun H, Shang Y, Zeng S, Qin Z, Yin S, Li J, Liang S, Lu G, Liu Z. Spiky nanohybrids of titanium dioxide/gold nanoparticles for enhanced photocatalytic degradation and anti-bacterial property. J Colloid Interface Sci 2019; 535:516-523. [DOI: 10.1016/j.jcis.2018.10.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/17/2018] [Accepted: 10/09/2018] [Indexed: 12/18/2022]
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19
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Zhang M, Chen T, Liu Y, Zhang J, Sun H, Yang J, Zhu J, Liu J, Wu Y. Plasmonic 3D Semiconductor-Metal Nanopore Arrays for Reliable Surface-Enhanced Raman Scattering Detection and In-Site Catalytic Reaction Monitoring. ACS Sens 2018; 3:2446-2454. [PMID: 30335972 DOI: 10.1021/acssensors.8b01023] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
It is urgent to develop a rapid, reliable, and in-site determination method to detect or monitor trace amounts of toxic substances in the field. Here, we report an alternative surface-enhanced Raman scattering (SERS) method coupled with a portable Raman device on a plasmonic three-dimension (3D) hot spot sensing surface. Plasmonic Ag nanoparticles (AgNPs) were uniformly deposited on 3D TiO2 nanopore arrays as a sensitive SERS substrate, and further coated with graphene oxide (GO). We demonstrate the plasmon-induced SERS enhancement (5.8-fold) and the improvement of catalytic activity by incorporation of plasmonic AgNPs into the 3D TiO2 nanopore arrays. The modification of GO on the TiO2-Ag nanopore array further increases by a 6.2-fold Raman enhancement compared to TiO2-Ag while maintaining good uniformity (RSD < 10%). The optimized TiO2-Ag-GO substrate shows powerful quantitative detection potential for drug residues in fish scales via a simple scrubbing method, and the limit of detection (LOD) for crystal violet (CV) was 10-8 M. The SERS substrate also showed detection practicability of pesticide residues in banana peel with an LOD of 10-7 M. In addition, our TiO2-Ag-GO substrate exhibits excellent SERS self-monitoring performance for catalytic reduction of multiple organics in NaBH4 solution, and the substrate shows good recyclability of 6 cycles. Such a 3D TiO2-Ag-GO substrate is a promising SERS substrate with good sensitivity, uniformity, and reusability, and may be utilized for further miniaturization for point of analytical applications.
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Affiliation(s)
- Maofeng Zhang
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Tun Chen
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Yongkai Liu
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Jiluan Zhang
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Haoran Sun
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Jian Yang
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Jiping Zhu
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Jiaqin Liu
- Institute of Industry & Equipment Technology, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
| | - Yucheng Wu
- School of Materials Science and Engineering, Hefei University of Technology, 193 Tunxi Road, Hefei 230009, China
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20
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Wei Q, Wu S, Sun Y. Quantum-Sized Metal Catalysts for Hot-Electron-Driven Chemical Transformation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802082. [PMID: 30118547 DOI: 10.1002/adma.201802082] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 05/21/2018] [Indexed: 06/08/2023]
Abstract
Hot-electron-driven chemical transformation (HEDCT) represents an emerging research area in utilizing photoresponsive nanoparticles to enable efficient solar-to-chemical conversion. The unique properties of quantum-sized metal nanoparticles (QSMNPs) make them a class of photocatalysts that can generate hot electrons to drive surface chemical reactions with high quantum efficiency. Compared to the conventional thermal-driven chemical reactions, HEDCT offers the advantages of accelerating reaction rate, improving reaction selectivity, and possibly enabling the occurrence of thermodynamically endergonic reactions. Despite its embryonic stage of development, using QSMNPs for HEDCT shows great promise. Herein, a timely overview on the research progress is provided with a focus on the fundamental quantum processes involved in the photoexcitation of hot electrons and the following HEDCT on the surface of QSMNPs. The last section discusses the challenges, which also represent the opportunities for the materials research community, in designing robust QSMNP photocatalysts and understanding the fundamental quantum phenomena in HEDCT.
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Affiliation(s)
- Qilin Wei
- Department of Chemistry, Temple University, 1901 N. 13th Street, Philadelphia, PA, 19122, USA
| | - Siyu Wu
- Department of Chemistry, Temple University, 1901 N. 13th Street, Philadelphia, PA, 19122, USA
| | - Yugang Sun
- Department of Chemistry, Temple University, 1901 N. 13th Street, Philadelphia, PA, 19122, USA
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21
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Lee SW, Hong JW, Lee H, Wi DH, Kim SM, Han SW, Park JY. The surface plasmon-induced hot carrier effect on the catalytic activity of CO oxidation on a Cu 2O/hexoctahedral Au inverse catalyst. NANOSCALE 2018; 10:10835-10843. [PMID: 29694476 DOI: 10.1039/c8nr00555a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The intrinsic correlation between an enhancement of catalytic activity and the flow of hot electrons generated at metal-oxide interfaces suggests an intriguing way to control catalytic reactions and is a significant subject in heterogeneous catalysis. Here, we show surface plasmon-induced catalytic enhancement by the peculiar nanocatalyst design of hexoctahedral (HOH) Au nanocrystals (NCs) with Cu2O clusters. We found that this inverse catalyst comprising a reactive oxide for the catalytic portion and a metal as the source of electrons by localized surface plasmon resonance (localized SPR) exhibits a change in catalytic activity by direct hot electron transfer or plasmon-induced resonance energy transfer (PIRET) when exposed to light. We prepared two types of inverse catalysts, Cu2O at the vertex sites of HOH Au NCs (Cu2O/Au vertex site) and a HOH Au NC-Cu2O core-shell structure (HOH Au@Cu2O), to test the structural effect on surface plasmons. Under broadband light illumination, the Cu2O/Au vertex site catalyst showed 30-90% higher catalytic activity and the HOH Au@Cu2O catalyst showed 10-30% higher catalytic activity than when in the dark. Embedding thin SiO2 layers between the HOH Au NCs and the Cu2O verified that the dominant mechanism for the catalytic enhancement is direct hot electron transfer from the HOH Au to the Cu2O. Finite-difference time domain calculations show that a much stronger electric field was formed on the vertex sites after growing the Cu2O on the HOH Au NCs. These results imply that the catalytic activity is enhanced when hot electrons, created from photon absorption on the HOH Au metal and amplified by the presence of surface plasmons, are transferred to the reactive Cu2O.
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Affiliation(s)
- Si Woo Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 34141, Republic of Korea
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22
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Nedrygailov II, Lee H, Lee SW, Park JY. Hot electron generation on metal catalysts under surface reaction: Principles, devices, and application. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.01.036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Size-dependent activity and selectivity of carbon dioxide photocatalytic reduction over platinum nanoparticles. Nat Commun 2018; 9:1252. [PMID: 29593250 PMCID: PMC5871894 DOI: 10.1038/s41467-018-03666-2] [Citation(s) in RCA: 187] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 03/02/2018] [Indexed: 12/05/2022] Open
Abstract
Platinum nanoparticles (Pt NPs) are one of the most efficient cocatalysts in photocatalysis, and their size determines the activity and the selectivity of the catalytic reaction. Nevertheless, an in-depth understanding of the platinum’s size effect in the carbon dioxide photocatalytic reduction is still lacking. Through analyses of the geometric features and electronic properties with variable-sized Pt NPs, here we show a prominent size effect of Pt NPs in both the activity and selectivity of carbon dioxide photocatalytic reduction. Decreasing the size of Pt NPs promotes the charge transfer efficiency, and thus enhances both the carbon dioxide photocatalytic reduction and hydrogen evolution reaction (HER) activity, but leads to higher selectivity towards hydrogen over methane. Combining experimental results and theoretical calculations, in Pt NPs, the terrace sites are revealed as the active sites for methane generation; meanwhile, the low-coordinated sites are more favorable in the competing HER. Light-driven carbon dioxide conversion into fuels provides a nature-inspired strategy to combat climate change, but how materials do so remains a challenge. Here, the authors prepare metal–semiconductor composites and find platinum-nanoparticle size controls fuel selectivity and activity.
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24
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Peng T, Miao J, Gao Z, Zhang L, Gao Y, Fan C, Li D. Reactivating Catalytic Surface: Insights into the Role of Hot Holes in Plasmonic Catalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703510. [PMID: 29457350 DOI: 10.1002/smll.201703510] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Indexed: 06/08/2023]
Abstract
Surface plasmon resonance of coinage metal nanoparticles is extensively exploited to promote catalytic reactions via harvesting solar energy. Previous efforts on elucidating the mechanisms of enhanced catalysis are devoted to hot electron-induced photothermal conversion and direct charge transfer to the adsorbed reactants. However, little attention is paid to roles of hot holes that are generated concomitantly with hot electrons. In this work, 13 nm spherical Au nanoparticles with small absorption cross-section are employed to catalyze a well-studied glucose oxidation reaction. Density functional theory calculation and X-ray absorption spectrum analysis reveal that hot holes energetically favor transferring catalytic intermediates to product molecules and then desorbing from the surface of plasmonic catalysts, resulting in the recovery of their catalytic activities. The studies shed new light on the use of the synergy of hot holes and hot electrons for plasmon-promoted catalysis.
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Affiliation(s)
- Tianhuan Peng
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junjian Miao
- Division of Interfacial Water, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Zhaoshuai Gao
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Linjuan Zhang
- Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Yi Gao
- Division of Interfacial Water, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Chunhai Fan
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Di Li
- Division of Physical Biology & Bioimaging Center, Shanghai Synchrotron Radiation Facility, Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
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25
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Khantamat O, Li CH, Liu SP, Liu T, Lee HJ, Zenasni O, Lee TC, Cai C, Lee TR. Broadening the photoresponsive activity of anatase titanium dioxide particles via decoration with partial gold shells. J Colloid Interface Sci 2018; 513:715-725. [DOI: 10.1016/j.jcis.2017.10.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 10/13/2017] [Accepted: 10/13/2017] [Indexed: 12/20/2022]
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26
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Lee SW, Song JT, Kim J, Oh J, Park JY. Enhanced catalytic activity for CO oxidation by the metal-oxide perimeter of TiO 2/nanostructured Au inverse catalysts. NANOSCALE 2018; 10:3911-3917. [PMID: 29423473 DOI: 10.1039/c7nr08168e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report the effect of metal-oxide interfaces on CO oxidation catalytic activity with inverse TiO2-nanostructured Au catalysts. The inverse nanocatalysts were prepared by depositing TiO2via the liquid-phase immersion method on electrochemically synthesized Au nanostructure supports. The catalytic performance for CO oxidation was investigated using various amounts of Ti (i.e. 0.1-1.0 wt%) on two different morphologies of Au nanostructures (i.e. nanoporous and nanorod). In comparing the different Au morphologies, we found an overall higher TOF and lower activation energy for the TiO2/nanoporous Au than those for the TiO2/nanorod Au. In addition, the CO oxidation activity increased as the Ti content increased up to 0.5 wt% probably due to active TiO2-Au interface sites enhancing CO oxidation via the supply of adsorption sites or charge transfer from TiO2 to Au. However, a higher titania content (i.e. 1.0 wt% TiO2) resulted in decreased activity caused by high surface coverage of TiO2 decreasing the number of TiO2-Au interface sites. These results implied that the perimeter area of the metal-oxide interface played a significant role in determining the catalytic performance for CO oxidation.
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Affiliation(s)
- Si Woo Lee
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Republic of Korea.
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27
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Abstract
Light-assisted surface reaction can lower reaction temperature, potentially reducing the energy use by providing light together with heat.
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Affiliation(s)
- Chanyeon Kim
- Department of Chemical and Biomolecular Engineering
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- South Korea
| | - Hyunjoo Lee
- Department of Chemical and Biomolecular Engineering
- Korea Advanced Institute of Science and Technology
- Daejeon 34141
- South Korea
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28
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Guo J, Zhang Y, Shi L, Zhu Y, Mideksa MF, Hou K, Zhao W, Wang D, Zhao M, Zhang X, Lv J, Zhang J, Wang X, Tang Z. Boosting Hot Electrons in Hetero-superstructures for Plasmon-Enhanced Catalysis. J Am Chem Soc 2017; 139:17964-17972. [PMID: 29155572 DOI: 10.1021/jacs.7b08903] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Hetero-nanostructures featured with both strong plasmon absorption and high catalytic activity are believed to be ideal platforms to realize efficient light-driven catalysis. However, in reality, it remains a great challenge to acquire high-performance catalysis in such hetero-nanostructures due to poor generation and transfer of plamson-induced hot electrons. In this report, we demonstrate that Au nanorod@Pd superstructures (Au@Pd SSs), where the ordered Pd nanoarrays are precisely grown on Au nanorod surfaces via solution-based seed-mediated approach, would be an excellent solution for this challenge. Both experiment and theory disclose that the ordered arrangement of Pd on Au nanorod surfaces largely promotes hot electron generation and transfer via amplified local electromagnetic field and decreased electron-phonon coupling, respectively. Each effect is separately highlighted in experiments by the significant plasmon-enhanced catalytic activity of Au@Pd SSs in two types of important reactions with a distinct time scale of bond-dissociation event: molecular oxygen activation and carbon-carbon coupling reaction. This work opens the door to design and application of new generation photocatalysts.
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Affiliation(s)
- Jun Guo
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China.,Center for Nanochemistry, Peking University , Beijing 100871, P. R. China.,University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Yin Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China.,Center for Nanochemistry, Peking University , Beijing 100871, P. R. China.,University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Lin Shi
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Yanfei Zhu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China.,University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Megersa F Mideksa
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Ke Hou
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China.,Center for Nanochemistry, Peking University , Beijing 100871, P. R. China.,University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Wenshi Zhao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China.,University of Chinese Academy of Sciences , Beijing 100049, P. R. China
| | - Dawei Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Meiting Zhao
- School of Materials Science and Engineering, Nanyang Technological University , Singapore 639798, Singapore
| | - Xiaofei Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Jiawei Lv
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Jianqi Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Xiaoli Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology , Beijing 100190, P. R. China
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29
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Kim SM, Lee C, Goddeti KC, Park JY. Hot plasmonic electron-driven catalytic reactions on patterned metal-insulator-metal nanostructures. NANOSCALE 2017; 9:11667-11677. [PMID: 28776052 DOI: 10.1039/c7nr02805a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The smart design of plasmonic nanostructures offers a unique capability for the efficient conversion of solar energy into chemical energy by strong interactions with resonant photons through the excitation of surface plasmon resonance, which increases the prospect of using sunlight in environmental and energy applications. Here, we show that the catalytic activity of CO oxidation can be tuned by using new model systems: two-dimensional (2D) arrays of metal-insulator-metal (MIM) plasmonic nanoislands designed to efficiently shuttle hot plasmonic electrons. Hot plasmonic electrons are generated upon the absorption of photons on noble metals, followed by the injection of these hot electrons into the Pt nanoparticles through tunneling or Schottky emission mechanisms, depending on the energy of the hot electrons. We found that these MIM nanostructures exhibit higher catalytic activity (i.e. by 40-110%) under light irradiation, revealing a significant impact on the catalytic activity for CO oxidation. The thickness dependence of the enhancement of catalytic activity on the oxide layers is consistent with the tunneling mechanism of hot electron flows. The results imply that surface plasmon-induced hot electron flows by light absorption significantly influence the catalytic activity of CO oxidation.
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Affiliation(s)
- Sun Mi Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 305-701, Republic of Korea.
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30
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Dana J, Maity P, Ghosh HN. Hot-electron transfer from the semiconductor domain to the metal domain in CdSe@CdS{Au} nano-heterostructures. NANOSCALE 2017; 9:9723-9731. [PMID: 28675235 DOI: 10.1039/c7nr02232h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Semiconductor-metal hybrid nanostructures are recognized as great materials due to their high level of light-induced charge separation, which has direct relevance in photocatalysis and solar energy conversion. To understand the mechanism of charge separation processes, hybrid CdSe@CdS{Au} nano-heterostructures containing Au nanoparticles (NPs) with different sizes were synthesized, and the ultrafast charge-transfer dynamics were monitored using femtosecond transient absorption spectroscopy. Steady-state optical absorption studies suggest the formation of charge-transfer complexes between core shell nanocrystals (NCs) and Au NPs. Steady-state and time-resolved luminescence spectroscopy suggest electron transfer from the photo-excited CdSe@CdS core shell QDs NCs to the Au NPs within the heterostructure. The ultrafast interfacial electron-transfer dynamics in the heterostructures were monitored by femtosecond transient absorption spectroscopy. The results revealed that both hot and thermalized electrons are transferred from the core shell QDs to the metal NPs with time constants of 150 and 300 fs, respectively. Hot-electron transfer from QDs to Au NPs was found to take place predominantly in the heterostructures depending on the sizes of the metal NPs. The photo-degradation of rhodamin B in the presence of the CdSe@CdS{Au} heterostructures under visible-light radiation suggests that the hot electrons in the heterostructures play a major role in photocatalytic degradation.
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Affiliation(s)
- Jayanta Dana
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Homi Bhabha National Instutute, Mumbai-400085, India
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31
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Park JY, Lee SW, Lee C, Lee H. Strategies for Hot Electron-Mediated Catalytic Reactions: Catalytronics. Catal Letters 2017. [DOI: 10.1007/s10562-017-2092-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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32
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Non-Colloidal Nanocatalysts Fabricated Using Arc Plasma Deposition and Their Application in Heterogenous Catalysis and Photocatalysis. Top Catal 2017. [DOI: 10.1007/s11244-017-0746-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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33
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Schürmann R, Bald I. Real-time monitoring of plasmon induced dissociative electron transfer to the potential DNA radiosensitizer 8-bromoadenine. NANOSCALE 2017; 9:1951-1955. [PMID: 28098304 DOI: 10.1039/c6nr08695k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The excitation of localized surface plasmons in noble metal nanoparticles (NPs) results in different nanoscale effects such as electric field enhancement, the generation of hot electrons and a temperature increase close to the NP surface. These effects are typically exploited in diverse fields such as surface-enhanced Raman scattering (SERS), NP catalysis and photothermal therapy (PTT). Halogenated nucleobases are applied as radiosensitizers in conventional radiation cancer therapy due to their high reactivity towards secondary electrons. Here, we use SERS to study the transformation of 8-bromoadenine (8BrA) into adenine on the surface of Au and AgNPs upon irradiation with a low-power continuous wave laser at 532, 633 and 785 nm, respectively. The dissociation of 8BrA is ascribed to a hot-electron transfer reaction and the underlying kinetics are carefully explored. The reaction proceeds within seconds or even milliseconds. Similar dissociation reactions might also occur with other electrophilic molecules, which must be considered in the interpretation of respective SERS spectra. Furthermore, we suggest that hot-electron transfer induced dissociation of radiosensitizers such as 8BrA can be applied in the future in PTT to enhance the damage of tumor tissue upon irradiation.
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Affiliation(s)
- R Schürmann
- Institute of Chemistry, Physical Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14776 Potsdam, Germany. and BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - I Bald
- Institute of Chemistry, Physical Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14776 Potsdam, Germany. and BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Str. 11, 12489 Berlin, Germany
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34
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Lee SW, Lee C, Goddeti KC, Kim SM, Park JY. Surface plasmon-driven catalytic reactions on a patterned Co3O4/Au inverse catalyst. RSC Adv 2017. [DOI: 10.1039/c7ra10450b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Hot carriers generated from LSPR excitation of Au can transfer to Co3O4, thus enhancing the catalytic activity for CO oxidation.
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Affiliation(s)
- Si Woo Lee
- Graduate School of EEWS
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon
- Republic of Korea
- Center for Nanomaterials and Chemical Reactions
| | - Changhwan Lee
- Graduate School of EEWS
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon
- Republic of Korea
- Center for Nanomaterials and Chemical Reactions
| | - Kalyan C. Goddeti
- Graduate School of EEWS
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon
- Republic of Korea
- Center for Nanomaterials and Chemical Reactions
| | - Sun Mi Kim
- Center for Nanomaterials and Chemical Reactions
- Institute for Basic Science
- Daejeon
- Republic of Korea
| | - Jeong Young Park
- Graduate School of EEWS
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon
- Republic of Korea
- Center for Nanomaterials and Chemical Reactions
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35
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Woo H, Park KH. Recent developments in hybrid iron oxide–noble metal nanocatalysts for organic reactions. Catal Today 2016. [DOI: 10.1016/j.cattod.2016.01.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Oh S, Qadir K, Park JY. Nature of Active Sites and Their Quantitative Measurement in Two-Dimensional Pt Metal Catalysts. Catal Letters 2016. [DOI: 10.1007/s10562-016-1909-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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37
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Guo E, Zeng Z, Shi X, Long X, Wang X. Electrical Transport Properties of Au Nanoparticles and Thin Films on Ge Probed Using a Conducting Atomic Force Microscope. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10589-10596. [PMID: 27642768 DOI: 10.1021/acs.langmuir.6b02232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, gold nanoparticles (Au NPs) were distributed on an n-Ge substrate using the colloidal NP deposition method to form Au NP/Ge Schottky diodes (SDs), and the current transport properties of these nano-SDs were studied. The current density-voltage (J-V) characteristics were measured on each nanometer-sized Au particle using a conducting atomic force microscope (C-AFM). These Au NP/Ge diodes showed a rectifying behavior. According to the thermionic emission (TE) model, the effective Schottky barrier height (SBH) and ideality factors n were obtained. The SBH for the Au NP/Ge diodes ranges from 0.22 to 0.30 eV and the ideality factor ranges from 3.8 to 8.6. The current density and the barrier height increase while the ideality factor decreases with increasing Au NP diameters. This indicates that the tunneling effect is enhanced because of the narrowed depletion width and decreased size of the Au NP/Ge SDs. To compare the electrical behavior with Au NP/Ge diodes, the Au thin film/Ge diodes were also prepared and their SBHs were much larger because of the image-charge lowering effect and the tunneling effect in Au NP/Ge diodes.
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Affiliation(s)
- Erjuan Guo
- Department of Physics, College of Sciences, ‡Institute of NanoMicroEnergy, College of Science, §Shanghai Key Laboratory of High Temperature Superconductor, ∥Department of Chemistry, College of Sciences, Shanghai University , Shanghai 200444, China
| | - Zhigang Zeng
- Department of Physics, College of Sciences, ‡Institute of NanoMicroEnergy, College of Science, §Shanghai Key Laboratory of High Temperature Superconductor, ∥Department of Chemistry, College of Sciences, Shanghai University , Shanghai 200444, China
| | - Xiaobo Shi
- Department of Physics, College of Sciences, ‡Institute of NanoMicroEnergy, College of Science, §Shanghai Key Laboratory of High Temperature Superconductor, ∥Department of Chemistry, College of Sciences, Shanghai University , Shanghai 200444, China
| | - Xiao Long
- Department of Physics, College of Sciences, ‡Institute of NanoMicroEnergy, College of Science, §Shanghai Key Laboratory of High Temperature Superconductor, ∥Department of Chemistry, College of Sciences, Shanghai University , Shanghai 200444, China
| | - Xiaohong Wang
- Department of Physics, College of Sciences, ‡Institute of NanoMicroEnergy, College of Science, §Shanghai Key Laboratory of High Temperature Superconductor, ∥Department of Chemistry, College of Sciences, Shanghai University , Shanghai 200444, China
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38
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Nedrygailov II, Lee C, Moon SY, Lee H, Park JY. Hot Electrons at Solid-Liquid Interfaces: A Large Chemoelectric Effect during the Catalytic Decomposition of Hydrogen Peroxide. Angew Chem Int Ed Engl 2016; 55:10859-62. [PMID: 27374493 DOI: 10.1002/anie.201603225] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Indexed: 11/09/2022]
Abstract
The study of energy and charge transfer during chemical reactions on metals is of great importance for understanding the phenomena involved in heterogeneous catalysis. Despite extensive studies, very little is known about the nature of hot electrons generated at solid-liquid interfaces. Herein, we report remarkable results showing the detection of hot electrons as a chemicurrent generated at the solid-liquid interface during decomposition of hydrogen peroxide (H2 O2 ) catalyzed on Schottky nanodiodes. The chemicurrent reflects the activity of the catalytic reaction and the state of the catalyst in real time. We show that the chemicurrent yield can reach values up to 10(-1) electrons/O2 molecule, which is notably higher than that for solid-gas reactions on similar nanodiodes.
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Affiliation(s)
- Ievgen I Nedrygailov
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, 305-701, Korea.,Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Changhwan Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, 305-701, Korea.,Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Song Yi Moon
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, 305-701, Korea.,Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Hyosun Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, 305-701, Korea.,Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon, 305-701, Korea. .,Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 305-701, Korea.
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39
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Nedrygailov II, Lee C, Moon SY, Lee H, Park JY. Hot Electrons at Solid-Liquid Interfaces: A Large Chemoelectric Effect during the Catalytic Decomposition of Hydrogen Peroxide. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603225] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ievgen I. Nedrygailov
- Center for Nanomaterials and Chemical Reactions; Institute for Basic Science; Daejeon 305-701 Korea
- Graduate School of EEWS; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Korea
| | - Changhwan Lee
- Center for Nanomaterials and Chemical Reactions; Institute for Basic Science; Daejeon 305-701 Korea
- Graduate School of EEWS; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Korea
| | - Song Yi Moon
- Center for Nanomaterials and Chemical Reactions; Institute for Basic Science; Daejeon 305-701 Korea
- Graduate School of EEWS; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Korea
| | - Hyosun Lee
- Center for Nanomaterials and Chemical Reactions; Institute for Basic Science; Daejeon 305-701 Korea
- Graduate School of EEWS; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions; Institute for Basic Science; Daejeon 305-701 Korea
- Graduate School of EEWS; Korea Advanced Institute of Science and Technology (KAIST); Daejeon 305-701 Korea
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40
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Kim SM, Lee SW, Moon SY, Park JY. The effect of hot electrons and surface plasmons on heterogeneous catalysis. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:254002. [PMID: 27166263 DOI: 10.1088/0953-8984/28/25/254002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Hot electrons and surface-plasmon-driven chemistry are amongst the most actively studied research subjects because they are deeply associated with energy dissipation and the conversion processes at the surface and interfaces, which are still open questions and key issues in the surface science community. In this topical review, we give an overview of the concept of hot electrons or surface-plasmon-mediated hot electrons generated under various structural schemes (i.e. metals, metal-semiconductor, and metal-insulator-metal) and their role affecting catalytic activity in chemical reactions. We highlight recent studies on the relation between hot electrons and catalytic activity on metallic surfaces. We discuss possible mechanisms for how hot electrons participate in chemical reactions. We also introduce controlled chemistry to describe specific pathways for selectivity control in catalysis on metal nanoparticles.
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Affiliation(s)
- Sun Mi Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 305-701, Korea. Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
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41
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Lee YK, Lee H, Lee C, Hwang E, Park JY. Hot-electron-based solar energy conversion with metal-semiconductor nanodiodes. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:254006. [PMID: 27168177 DOI: 10.1088/0953-8984/28/25/254006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Energy dissipation at metal surfaces or interfaces between a metal and a dielectric generally results from elementary excitations, including phonons and electronic excitation, once external energy is deposited to the surface/interface during exothermic chemical processes or an electromagnetic wave incident. In this paper, we outline recent research activities to develop energy conversion devices based on hot electrons. We found that photon energy can be directly converted to hot electrons and that hot electrons flow through the interface of metal-semiconductor nanodiodes where a Schottky barrier is formed and the energy barrier is much lower than the work function of the metal. The detection of hot electron flow can be successfully measured using the photocurrent; we measured the photoyield of photoemission with incident photons-to-current conversion efficiency (IPCE). We also show that surface plasmons (i.e. the collective oscillation of conduction band electrons induced by interaction with an electromagnetic field) are excited on a rough metal surface and subsequently decay into secondary electrons, which gives rise to enhancement of the IPCE. Furthermore, the unique optical behavior of surface plasmons can be coupled with dye molecules, suggesting the possibility for producing additional channels for hot electron generation.
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Affiliation(s)
- Young Keun Lee
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science, Daejeon 305-701, Korea. Graduate School of EEWS, KAIST, Daejeon 305-701, Korea
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42
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Li X, Bi W, Zhang L, Tao S, Chu W, Zhang Q, Luo Y, Wu C, Xie Y. Single-Atom Pt as Co-Catalyst for Enhanced Photocatalytic H2 Evolution. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:2427-31. [PMID: 26822495 DOI: 10.1002/adma.201505281] [Citation(s) in RCA: 548] [Impact Index Per Article: 68.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 12/02/2015] [Indexed: 05/19/2023]
Abstract
Isolated single-atom platinum (Pt) embedded in the sub-nanoporosity of 2D g-C3 N4 as a new form of co-catalyst is reported. The highly stable single-atom co-catalyst maximizes the atom efficiency and alters the surface trap states of g-C3 N4 , leading to significantly enhanced photocatalytic H2 evolution activity, 8.6 times higher than that of Pt nanoparticles and up to 50 times that for bare g-C3 N4 .
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Affiliation(s)
- Xiaogang Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wentuan Bi
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Lei Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Shi Tao
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wangsheng Chu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Qun Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Yi Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, 230026, Anhui, China
| | - Changzheng Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yi Xie
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materials, CAS Center for Excellence in Nanoscience, CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, China
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43
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Nedrygailov II, Park JY. The nature of hot electrons generated by exothermic catalytic reactions. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2015.12.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Moon SY, Naik B, An K, Kim SM, Park JY. Photocatalytic H2 generation on macro-mesoporous oxide-supported Pt nanoparticles. RSC Adv 2016. [DOI: 10.1039/c5ra25358f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Photocatalysts with high surface area and crystalline walls are synthesized through a dual-templating strategy. The role of ordered macro-mesoporous oxides with crystalline walls was studied for photocatalytic water splitting to generate H2.
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Affiliation(s)
- Song Yi Moon
- Graduate School of EEWS
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon
- Republic of Korea
- Center for Nanomaterials and Chemical Reactions
| | - Brundabana Naik
- Graduate School of EEWS
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon
- Republic of Korea
- Center for Nanomaterials and Chemical Reactions
| | - Kwangjin An
- School of Energy and Chemical Engineering
- Ulsan National Institute of Science and Technology(UNIST)
- Ulsan 689-798
- Republic of Korea
| | - Sun Mi Kim
- Graduate School of EEWS
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon
- Republic of Korea
- Center for Nanomaterials and Chemical Reactions
| | - Jeong Young Park
- Graduate School of EEWS
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon
- Republic of Korea
- Center for Nanomaterials and Chemical Reactions
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45
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Yang K, Meng C, Lin L, Peng X, Chen X, Wang X, Dai W, Fu X. A heterostructured TiO2–C3N4 support for gold catalysts: a superior preferential oxidation of CO in the presence of H2 under visible light irradiation and without visible light irradiation. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01009h] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Introducing C3N4 into Au/TiO2 promotes an increase in the electron densities of Au, resulting in the activation of CO and O2.
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Affiliation(s)
- Kai Yang
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
- China
| | - Chao Meng
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
- China
| | - Liuliu Lin
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
- China
| | - Xiaoying Peng
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
- China
| | - Xun Chen
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
- China
| | - Xuxu Wang
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
- China
| | - Wenxin Dai
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
- China
| | - Xianzhi Fu
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou
- China
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46
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Hot Electron Surface Chemistry at Oxide–Metal Interfaces: Foundation of Acid-base Catalysis. Catal Letters 2015. [DOI: 10.1007/s10562-015-1657-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Cui J, Li Y, Liu L, Chen L, Xu J, Ma J, Fang G, Zhu E, Wu H, Zhao L, Wang L, Huang Y. Near-Infrared Plasmonic-Enhanced Solar Energy Harvest for Highly Efficient Photocatalytic Reactions. NANO LETTERS 2015; 15:6295-301. [PMID: 26373787 DOI: 10.1021/acs.nanolett.5b00950] [Citation(s) in RCA: 127] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We report a highly efficient photocatalyst comprised of Cu7S4@Pd heteronanostructures with plasmonic absorption in the near-infrared (NIR)-range. Our results indicated that the strong NIR plasmonic absorption of Cu7S4@Pd facilitated hot carrier transfer from Cu7S4 to Pd, which subsequently promoted the catalytic reactions on Pd metallic surface. We confirmed such enhancement mechanism could effectively boost the sunlight utilization in a wide range of photocatalytic reactions, including the Suzuki coupling reaction, hydrogenation of nitrobenzene, and oxidation of benzyl alcohol. Even under irradiation at 1500 nm with low power density (0.45 W/cm(2)), these heteronanostructures demonstrated excellent catalytic activities. Under solar illumination with power density as low as 40 mW/cm(2), nearly 80-100% of conversion was achieved within 2 h for all three types of organic reactions. Furthermore, recycling experiments showed the Cu7S4@Pd were stable and could retain their structures and high activity after five cycles. The reported synthetic protocol can be easily extended to other Cu7S4@M (M = Pt, Ag, Au) catalysts, offering a new solution to design and fabricate highly effective photocatalysts with broad material choices for efficient conversion of solar energy to chemical energy in an environmentally friendly manner.
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Affiliation(s)
- Jiabin Cui
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, People's Republic of China
| | - Yongjia Li
- Department of Materials Science and Engineering, University of California Los Angeles , Los Angeles, California 90095 United States
| | - Lei Liu
- Semiconductor Lighting Technology Research and Development Center, Institute of Semiconductors, Chinese Academy of Sciences , Beijing 100083, People's Republic of China
| | - Lin Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, People's Republic of China
| | - Jun Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, People's Republic of China
| | - Jingwen Ma
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, People's Republic of China
| | - Gang Fang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, People's Republic of China
| | - Enbo Zhu
- Department of Materials Science and Engineering, University of California Los Angeles , Los Angeles, California 90095 United States
| | - Hao Wu
- Department of Materials Science and Engineering, University of California Los Angeles , Los Angeles, California 90095 United States
| | - Lixia Zhao
- Semiconductor Lighting Technology Research and Development Center, Institute of Semiconductors, Chinese Academy of Sciences , Beijing 100083, People's Republic of China
| | - Leyu Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology , Beijing 100029, People's Republic of China
| | - Yu Huang
- Department of Materials Science and Engineering, University of California Los Angeles , Los Angeles, California 90095 United States
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48
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Park JY, Kim SM, Lee H, Nedrygailov II. Hot-electron-mediated surface chemistry: toward electronic control of catalytic activity. Acc Chem Res 2015; 48:2475-83. [PMID: 26181684 DOI: 10.1021/acs.accounts.5b00170] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Energy dissipation at surfaces and interfaces is mediated by excitation of elementary processes, including phonons and electronic excitation, once external energy is deposited to the surface during exothermic chemical processes. Nonadiabatic electronic excitation in exothermic catalytic reactions results in the flow of energetic electrons with an energy of 1-3 eV when chemical energy is converted to electron flow on a short (femtosecond) time scale before atomic vibration adiabatically dissipates the energy (in picoseconds). These energetic electrons that are not in thermal equilibrium with the metal atoms are called "hot electrons". The detection of hot electron flow under atomic or molecular processes and understanding its role in chemical reactions have been major topics in surface chemistry. Recent studies have demonstrated electronic excitation produced during atomic or molecular processes on surfaces, and the influence of hot electrons on atomic and molecular processes. We outline research efforts aimed at identification of the intrinsic relation between the flow of hot electrons and catalytic reactions. We show various strategies for detection and use of hot electrons generated by the energy dissipation processes in surface chemical reactions and photon absorption. A Schottky barrier localized at the metal-oxide interface of either catalytic nanodiodes or hybrid nanocatalysts allows hot electrons to irreversibly transport through the interface. We show that the chemicurrent, composed of hot electrons excited by the surface reaction of CO oxidation or hydrogen oxidation, correlates well with the turnover rate measured separately by gas chromatography. Furthermore, we show that hot electron flows generated on a gold thin film by photon absorption (or internal photoemission) can be amplified by localized surface plasmon resonance. The influence of hot charge carriers on the chemistry at the metal-oxide interface are discussed for the cases of Au, Ag, and Pt nanoparticles on oxide supports and Pt-CdSe-Pt nanodumbbells. We show that the accumulation or depletion of hot electrons on metal nanoparticles, in turn, can also influence catalytic reactions. Mechanisms suggested for hot-electron-induced chemical reactions on a photoexcited plasmonic metal are discussed. We propose that the manipulation of the flow of hot electrons by changing the electrical characteristics of metal-oxide and metal-semiconductor interfaces can give rise to the intriguing capability of tuning the catalytic activity of hybrid nanocatalysts.
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Affiliation(s)
- Jeong Young Park
- Center for Nanomaterials
and Chemical Reactions, Institute for Basic Science, Daejeon 305-701, Republic of Korea
- Graduate
School of EEWS, KAIST, Daejeon 305-701, Republic of Korea
| | - Sun Mi Kim
- Center for Nanomaterials
and Chemical Reactions, Institute for Basic Science, Daejeon 305-701, Republic of Korea
- Graduate
School of EEWS, KAIST, Daejeon 305-701, Republic of Korea
| | - Hyosun Lee
- Center for Nanomaterials
and Chemical Reactions, Institute for Basic Science, Daejeon 305-701, Republic of Korea
- Graduate
School of EEWS, KAIST, Daejeon 305-701, Republic of Korea
| | - Ievgen I. Nedrygailov
- Center for Nanomaterials
and Chemical Reactions, Institute for Basic Science, Daejeon 305-701, Republic of Korea
- Graduate
School of EEWS, KAIST, Daejeon 305-701, Republic of Korea
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49
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Kwon S, Lee SJ, Kim SM, Lee Y, Song H, Park JY. Probing the nanoscale Schottky barrier of metal/semiconductor interfaces of Pt/CdSe/Pt nanodumbbells by conductive-probe atomic force microscopy. NANOSCALE 2015; 7:12297-12301. [PMID: 26136054 DOI: 10.1039/c5nr02285a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The electrical nature of the nanoscale contact between metal nanodots and semiconductor rods has drawn significant interest because of potential applications for metal-semiconductor hybrid nanostructures in energy conversion or heterogeneous catalysis. Here, we studied the nanoscale electrical character of the Pt/CdSe junction in Pt/CdSe/Pt nanodumbbells on connected Au islands by conductive-probe atomic force microscopy under ultra-high vacuum. Current-voltage plots measured in contact mode revealed Schottky barrier heights of individual nanojunctions of 0.41 ± 0.02 eV. The measured value of the Schottky barrier is significantly lower than that of planar thin-film diodes because of a reduction in the barrier width and enhanced tunneling probability at the interface.
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Affiliation(s)
- Sangku Kwon
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon 305-701, Korea.
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50
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Conquering Catalyst Complexity: Nanoparticle Synthesis and Instrument Development for Molecular and Atomistic Characterisation Under In Situ Conditions. Top Catal 2015. [DOI: 10.1007/s11244-015-0398-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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