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Keerthana L, Dharmalingam G. Chemically engineered plasmonic Au-gallium oxide nanocomposites for harsh environment applications: an investigation into thermal and chemical robustness. Phys Chem Chem Phys 2024; 26:15018-15031. [PMID: 38742899 DOI: 10.1039/d3cp05831j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Enhanced thermal, chemical, and mechanical properties of different metal nanoparticle morphologies integrated with metal oxides have been reported in multiple instances. The chemical and material robustness of metal nanoparticles incorporated surficially and into the bulk of distinct as well as spontaneously formed morphologies of metal oxides through solution-based and microwave-based approaches are investigated in this study. These composites were tested for their chemical and material robustness by exposing films formed on quartz substrates to high temperatures (800 °C) in an air ambient as well as to extreme conditions of pH, often encountered in harsh environment applications such as sensing and catalysis. The changes in the optical properties and crystallinity have been studied using in situ absorption and ex situ X-ray diffraction analyses and electron microscopy. The trends observed with respect to the changes in the plasmonic absorbance were validated theoretically and found to be in reasonable agreement with the experimental data. Confirmations of the phenomena occurring in different morphologies and architectures were thereby corroborated through careful interpretations from experiments and predictions from theoretical models. We, therefore, report a simple solution-based process for achieving engineered harsh environment-compatible nanocomposites through studies specifically tailored for such applications such as catalysis, sensing, energy storage, and enhanced luminescence.
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Affiliation(s)
- L Keerthana
- Plasmonic Nanomaterials Laboratory, PSG Institute of Advanced Studies, Coimbatore 641004, India.
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Pawlik V, Zhao X, Figueras-Valls M, Wolter TJ, Hood ZD, Ding Y, Liu J, Chi M, Mavrikakis M, Xia Y. Thermal Stability of Au Rhombic Dodecahedral Nanocrystals Can Be Greatly Enhanced by Coating Their Surface with an Ultrathin Shell of Pt. NANO LETTERS 2024; 24:549-556. [PMID: 38174901 PMCID: PMC10797619 DOI: 10.1021/acs.nanolett.3c02680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 12/26/2023] [Accepted: 12/29/2023] [Indexed: 01/05/2024]
Abstract
Rhombic dodecahedral nanocrystals have been considered particularly difficult to synthesize because they are enclosed by {110}, a low-index facet with the greatest surface energy. Recently, we demonstrated the use of seed-mediated growth for the facile and robust synthesis of Au rhombic dodecahedral nanocrystals (AuRD). While the unique shape and surface structure of AuRD are desirable for potential applications in plasmonics and catalysis, respectively, their high surface energy makes them highly susceptible to thermal degradation. Here we demonstrate that it is feasible to greatly improve the thermal stability with some sacrifice to the plasmonic properties of the original AuRD by coating their surface with an ultrathin shell made of Pt. Our in situ electron microscopy analysis indicates that the ultrathin Pt coating can increase the thermal stability from 60 up to 450 °C, a trend that is also supported by the results from a computational study.
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Affiliation(s)
- Veronica
D. Pawlik
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Xiaohuan Zhao
- The
Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United
States
| | - Marc Figueras-Valls
- Department
of Chemical & Biological Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Trenton J. Wolter
- Department
of Chemical & Biological Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Zachary D. Hood
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
| | - Yong Ding
- School
of Material Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Jingyue Liu
- Department
of Physics, Arizona State University, Tempe, Arizona 85287, United
States
| | - Miaofang Chi
- Materials
Science and Technology Division, Oak Ridge
National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Manos Mavrikakis
- Department
of Chemical & Biological Engineering, University of Wisconsin—Madison, Madison, Wisconsin 53706, United States
| | - Younan Xia
- School
of Chemistry and Biochemistry, Georgia Institute
of Technology, Atlanta, Georgia 30332, United States
- The
Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United
States
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Kim KJ, Culp JT, Wuenschell J, Shugayev RA, Ohodnicki PR, Sekizkardes AK. Sorption-Induced Fiber Optic Plasmonic Gas Sensing via Small Grazing Angle of Incidence. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301293. [PMID: 37432766 DOI: 10.1002/adma.202301293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 07/08/2023] [Accepted: 07/10/2023] [Indexed: 07/12/2023]
Abstract
Sensing technologies based on plasmonic nanomaterials are of interest for various chemical, biological, environmental, and medical applications. In this work, an incorporation strategy of colloidal plasmonic nanoparticles (pNPs) in microporous polymer for realizing distinct sorption-induced plasmonic sensing is reported. This approach is demonstrated by introducing tin-doped indium oxide pNPs into a polymer of intrinsic microporosity (PIM-1). The composite film (pNPs-polymer) provides distinct and tunable optical features on the fiber optic (FO) platform that can be used as a signal transducer for gas sensing (e.g., CO2 ) under atmospheric conditions. The resulting pNPs-polymer composite demonstrates high sensitivity response on FO in the evanescent field configuration, provided by the dramatic response of modes above the total-internal-reflection angle. Furthermore, by varying the pNPs content in the polymer matrix, the optical behavior of the pNPs-polymer composite film can be tuned to affect the operational wavelength by over several hundred nanometers and the sensitivity of the sensor in the near-infrared range. It is also shown that the pNPs-polymer composite film exhibits remarkable stability over a period of more than 10 months by mitigating the physical aging issue of the polymer.
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Affiliation(s)
- Ki-Joong Kim
- National Energy Technology Laboratory, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
- NETL Support Contractor, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
| | - Jeffrey T Culp
- National Energy Technology Laboratory, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
- NETL Support Contractor, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
| | - Jeffrey Wuenschell
- National Energy Technology Laboratory, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
- NETL Support Contractor, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
| | - Roman A Shugayev
- National Energy Technology Laboratory, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
| | - Paul R Ohodnicki
- National Energy Technology Laboratory, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
| | - Ali K Sekizkardes
- National Energy Technology Laboratory, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
- NETL Support Contractor, 626 Cochran Mill Road, Pittsburgh, PA, 15236, USA
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Luan S, Hu J, Ma M, Tian J, Liu D, Wang J, Wang J. The enhanced sensing properties of MOS-based resistive gas sensors by Au functionalization: a review. Dalton Trans 2023. [PMID: 37312618 DOI: 10.1039/d3dt01078c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Gas sensors are essential for detecting toxic gases that can harm social life or industrial production. Traditional metal oxide semiconductor (MOS)-based sensors suffer from shortcomings such as high operating temperature and slow response time, which limits their detection capabilities. Thus, there is a need to improve their performance. One useful technique is noble metal functionalization, which can effectively enhance the response/recovery time, sensitivity and selectivity, sensing response, and optimum operating temperature of MOS gas sensors. Among the noble metals, Au NPs are considered a promising material for forming composite sensing materials to achieve better sensing performance. This paper aims to review and discuss the recent research on Au-decorated MOS-based sensors, including Au/n-type MOS-based sensors, Au/p-type MOS-based sensors, Au/MOS/carbon composite materials, and Au/MOS/perovskite composite materials. The sensing mechanism of Au-functionalized MOS-based materials will also be examined.
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Affiliation(s)
- Sen Luan
- School of Civil Engineering, Qingdao University of Technology, Qingdao, 266520, Shandong, China.
| | - Jinhu Hu
- School of Civil Engineering, Qingdao University of Technology, Qingdao, 266520, Shandong, China.
| | - Mingliang Ma
- School of Civil Engineering, Qingdao University of Technology, Qingdao, 266520, Shandong, China.
| | - Jiale Tian
- School of Civil Engineering, Qingdao University of Technology, Qingdao, 266520, Shandong, China.
| | - Di Liu
- School of Civil Engineering, Qingdao University of Technology, Qingdao, 266520, Shandong, China.
| | - Jianyi Wang
- School of Civil Engineering, Qingdao University of Technology, Qingdao, 266520, Shandong, China.
| | - Jin Wang
- School of Civil Engineering, Qingdao University of Technology, Qingdao, 266520, Shandong, China.
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Indhu AR, Keerthana L, Dharmalingam G. Plasmonic nanotechnology for photothermal applications - an evaluation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:380-419. [PMID: 37025366 PMCID: PMC10071519 DOI: 10.3762/bjnano.14.33] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 03/02/2023] [Indexed: 06/19/2023]
Abstract
The application of plasmonic nanoparticles is motivated by the phenomenon of surface plasmon resonance. Owing to the tunability of optothermal properties and enhanced stability, these nanostructures show a wide range of applications in optical sensors, steam generation, water desalination, thermal energy storage, and biomedical applications such as photothermal (PT) therapy. The PT effect, that is, the conversion of absorbed light to heat by these particles, has led to thriving research regarding the utilization of plasmonic nanoparticles for a myriad of applications. The design of conventional nanomaterials for PT conversion has focussed predominantly on the manipulation of photon absorption through bandgap engineering, doping, incorporation, and modification of suitable matrix materials. Plasmonic nanomaterials offer an alternative and attractive approach in this regard, through the flexibility in the excitation of surface plasmons. Specific advantages are the considerable improved bandwidth of the absorption, a higher efficiency of photon absorption, facile tuning, as well as flexibility in the synthesis of plasmonic nanomaterials. This review of plasmonic PT (PPT) research begins with a theoretical discussion on the plasmonic properties of nanoparticles by means of the quasi-static approximation, Mie theory, Gans theory, generic simulations on common plasmonic material morphologies, and the evaluation processes of PT performance. Further, a variety of nanomaterials and material classes that have potential for PPT conversion are elucidated, such as plasmonic metals, bimetals, and metal-metal oxide nanocomposites. A detailed investigation of the essential, but often ignored, concept of thermal, chemical, and aggregation stability of nanoparticles is another part of this review. The challenges that remain, as well as prospective directions and chemistries, regarding nanomaterials for PT conversion are pondered on in the final section of the article, taking into account the specific requirements from different applications.
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Affiliation(s)
- A R Indhu
- Plasmonic Nanomaterials Laboratory, PSG Institute of Advanced Studies, Coimbatore-641004, India
| | - L Keerthana
- Plasmonic Nanomaterials Laboratory, PSG Institute of Advanced Studies, Coimbatore-641004, India
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An approach towards the synthesis of faceted Ga2O3 nano- and micro-structures through the microwave process. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02572-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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