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Yang H, Kim S, Lee S, Zhao L, Inoishi A, Sakaebe H, Albrecht K, Li OL. Sn-carbon nanocomposite anode for all-solid-state chloride-ion batteries operating at room temperature. Chem Commun (Camb) 2025; 61:1866-1869. [PMID: 39775720 DOI: 10.1039/d4cc05595k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2025]
Abstract
All-solid-state chloride-ion batteries promise high theoretical energy density and room-temperature operation. However, conventional Sn anodes suffer from low material utilization attributed to large particle size and volume expansion. Here, nano-sized Sn particles in an N-doped carbon framework are used as an anode, resulting in ∼12% higher capacity compared to conventional Sn, due to improved Sn utilization and suppression of volume expansion.
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Affiliation(s)
- Hyeonsu Yang
- Department of Materials Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea.
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Seonghee Kim
- Department of Materials Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea.
| | - Sungho Lee
- Department of Materials Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea.
| | - Liwei Zhao
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen 6-1, Kasuga, Fukuoka 816-8580, Japan.
| | - Atsushi Inoishi
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen 6-1, Kasuga, Fukuoka 816-8580, Japan.
| | - Hikari Sakaebe
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen 6-1, Kasuga, Fukuoka 816-8580, Japan.
| | - Ken Albrecht
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen 6-1, Kasuga, Fukuoka 816-8580, Japan.
| | - Oi Lun Li
- Department of Materials Science and Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan 46241, Republic of Korea.
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2
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Park CH, Kim UJ, Choi JH, Lee SH. Synergistic N/F Dual-Doped MoC/C Catalyst Synthesized via Liquid Phase Plasma for Sustainable Ammonia Production. ACS APPLIED MATERIALS & INTERFACES 2024; 16:63540-63552. [PMID: 39505495 PMCID: PMC11583126 DOI: 10.1021/acsami.4c12535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2024] [Revised: 10/24/2024] [Accepted: 10/31/2024] [Indexed: 11/08/2024]
Abstract
NH3 is a versatile solution for the storage and distribution of sustainable energy, offering high energy density and promising applications as a renewable hydrogen carrier. However, electrochemical NH3 synthesis under ambient conditions remains challenging, such as low selectivity and efficiency, owing to the inertness of N≡N and competing reactions. In this study, a catalyst (MoC/NFC) comprising molybdenum carbide evenly dispersed on carbon doped with N and F heteroatoms was successfully synthesized using liquid-phase plasma. The MoC/NFC catalyst exhibited a maximum NH3 yield of 115 μg h-1 mg-1cat. with a faradaic efficiency of 1.15% at -0.7 V vs reversible hydrogen electrode in 0.1 M KOH electrolyte. Pyridinic- and pyrrolic-N atoms adjacent to the carbon pores served as active sites for N2 adsorption and enabled N2 triple bond cleavage. In addition, F doping contributed to N2 activation owing to the high electronegativity of 3.98, resulting in the attraction of more electrons. These findings demonstrate a significant advancement in the development of efficient catalysts for electrochemical ammonia synthesis, potentially paving the way for scalable and sustainable NH3 production methods that can support the growing demand for renewable energy storage solutions.
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Affiliation(s)
- Chang-Hyeon Park
- Department
of Ocean Advanced Materials Convergence Engineering, Korea Maritime & Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Ui-Jun Kim
- Department
of Ocean Advanced Materials Convergence Engineering, Korea Maritime & Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
| | - Jae-Hyuk Choi
- Division
of Marine System Engineering, Korea Maritime
& Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic
of Korea
| | - Seung-Hyo Lee
- Department
of Ocean Advanced Materials Convergence Engineering, Korea Maritime & Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Republic of Korea
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3
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Tipplook M, Hisama K, Koyama M, Fujisawa K, Hayashi F, Sudare T, Teshima K. Cation-Doped Nanocarbons for Enhanced Perfluoroalkyl Substance Removal: Exotic Bottom-Up Solution Plasma Synthesis and Characterization. ACS APPLIED MATERIALS & INTERFACES 2024; 16:61832-61845. [PMID: 39348279 DOI: 10.1021/acsami.4c08925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/02/2024]
Abstract
Perfluorinated alkyl substances (PFAS), such as perfluorooctanesulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), are pervasive organic contaminants that are widespread in aquatic environments, posing significant health risks to humans and wildlife. Due to their persistent nature, urgent removal is necessary. Conventional adsorbents are inefficient at removing PFOS and PFOA, highlighting the need for alternative materials. Herein, we present a synthetic method for quaternary ammonium cation-doped carbon nanoparticles (QACNs) using a solution plasma process for the efficient removal of PFOS and PFOA. QACN is formed simultaneously through a one-step discharge of nonequilibrium plasma at the interface of benzene and pyridinium chloride. The resulting material exhibited a high surface electrical charge and enhanced hydrophilicity as well as an amorphous structure of a nonporous nature, involving nanoparticles with an undefined shape. The obtained adsorbent demonstrated high adsorption efficiency and stability, adsorbing 998.45 and 889.37 mg g-1 of PFOS and PFOA, respectively, exceeding the efficiencies of conventional carbon-based adsorbents (80.89-313.15 mg g-1). The adsorption performance was dependent on the adsorbent dosage, pH of the solution, and the coexisting ionic species. Adsorption studies, including adsorption kinetics, isotherms, and thermodynamics, revealed that PFOS and PFOA were chemisorbed to the QACN surface, forming multilayers endothermically and spontaneously. Experimental and computational analyses revealed that adsorption primarily occurs via electronic interactions between the PFAS active sites and the quaternary ammonium group in the carbon framework. The slightly lower adsorption potential of the PFOS and PFOA fluorocarbon chains on the adsorbent was elucidated. Furthermore, the dispersibility of the adsorbent in solution significantly affected the adsorption performance. These findings highlight the potential of the novel synthetic method proposed in this study, offering a pathway for the development of highly effective carbon adsorbents for environmental remediation.
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Affiliation(s)
- Mongkol Tipplook
- Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano 380-8553, Japan
| | - Kaoru Hisama
- Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano 380-8553, Japan
| | - Michihisa Koyama
- Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano 380-8553, Japan
| | - Kazunori Fujisawa
- Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano 380-8553, Japan
| | - Fumitaka Hayashi
- Department of Materials Chemistry, Shinshu University, Nagano 380-8553, Japan
| | - Tomohito Sudare
- Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano 380-8553, Japan
| | - Katsuya Teshima
- Research Initiative for Supra-Materials (RISM), Shinshu University, Nagano 380-8553, Japan
- Department of Materials Chemistry, Shinshu University, Nagano 380-8553, Japan
- Institute for Aqua Regeneration, Shinshu University, Nagano 380-8553, Japan
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4
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Phan QP, Tran TCL, Tran TT, La TTH, Cao XV, Luu TA, Luong TQA. Synthesis of highly activated polybenzene-grafted carbon nanoparticles for supercapacitors assisted by solution plasma. RSC Adv 2024; 14:36610-36621. [PMID: 39553269 PMCID: PMC11566725 DOI: 10.1039/d4ra06534d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2024] [Accepted: 11/11/2024] [Indexed: 11/19/2024] Open
Abstract
The growing demand for electronic storage devices with faster charging rates, higher energy capacities, and longer cycle lives has led to significant advancements in supercapacitor technology. These devices typically utilize high-surface-area carbon-based materials as electrodes, which provide excellent power densities and cycling stability. However, challenges such as inadequate electrolyte interaction, hydrophobicity that impedes ion transport, and high manufacturing costs restrict their effectiveness. This study aims to enhance carbon-based materials by grafting polymer chains onto their surfaces for supercapacitor applications. A simple solution plasma process (SPP), followed by heating, prepared the polymer-grafted carbon materials. Carbon nanoparticles were synthesized from benzene through plasma discharge in liquid under ambient conditions, forming free radical sites on the carbon surface. Subsequently, benzene molecules were grafted onto the surface via radical polymerization during heating. We investigated the structural and morphological properties of the synthesized materials using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), and Raman spectroscopy. Additionally, N2 absorption-desorption isotherms were measured, pore structure was analyzed with the Dubinin-Astakhov (DA) average pore size model, and specific surface area was determined using the Brunauer-Emmett-Teller (BET) equation for all synthesized samples. The results indicated that the grafting process was influenced by heating time and drying temperature. Furthermore, the electrical properties of the samples were evaluated using cyclic voltammetry (CV), which demonstrated enhancements in both areal capacitance and cycling stability for the polybenzene-grafted carbon compared to the non-grafted variant. This research illustrates that polymer grafting can effectively improve the performance and stability of carbon-based materials for supercapacitor applications. Future work will aim to optimize these materials for broader applications.
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Affiliation(s)
- Quoc Phu Phan
- Department of Polymer Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet Street, District 10 Ho Chi Minh City Vietnam Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc City Ho Chi Minh City Vietnam Vietnam
| | - Thi Cam Linh Tran
- Department of Polymer Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet Street, District 10 Ho Chi Minh City Vietnam Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc City Ho Chi Minh City Vietnam Vietnam
| | - Thanh Tung Tran
- Department of Polymer Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet Street, District 10 Ho Chi Minh City Vietnam Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc City Ho Chi Minh City Vietnam Vietnam
| | - Thi Thai Ha La
- Department of Polymer Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet Street, District 10 Ho Chi Minh City Vietnam Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc City Ho Chi Minh City Vietnam Vietnam
| | - Xuan Viet Cao
- Department of Polymer Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet Street, District 10 Ho Chi Minh City Vietnam Vietnam
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc City Ho Chi Minh City Vietnam Vietnam
| | - Tuan Anh Luu
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc City Ho Chi Minh City Vietnam Vietnam
- Department of Energy Materials and Applications, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet Street, District 10 Ho Chi Minh City Vietnam Vietnam
| | - Thi Quynh Anh Luong
- Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc City Ho Chi Minh City Vietnam Vietnam
- Department of Metallurgy and Alloy Materials, Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet Street, District 10 Ho Chi Minh City Vietnam Vietnam
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5
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Tipplook M, Tanaka H, Sudare T, Hagio T, Saito N, Teshima K. Nanoarchitectonics Solution Plasma Polymerization of Amino-Rich Carbon Nanosorbents for Use in Enhanced Fluoride Removal. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7038-7046. [PMID: 38307866 DOI: 10.1021/acsami.3c15172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
Amino-functionalized carbon (NH2C) is an effective adsorbent in removing pollutants from contaminated water because of its high specific surface area and electrical charge. In the conventional preparation method, the introduction of amino groups onto the carbon surface is limited, resulting in low pollutant adsorption. Herein, we present simultaneous carbonization and amination to form NH2C via electrical discharge of nonequilibrium plasma, and the resultant material is applied as an effective adsorbent in fluoride removal. The simultaneous process introduces numerous amino groups into the carbon framework, enhancing the adsorption efficiency. The fluoride adsorption capacity is approximately 121.12 mg g-1, which is several times higher than those reported in previous studies. Furthermore, computational modeling is performed to yield deeper mechanistic insights into the molecular-level adsorption behavior. These data are useful in designing and synthesizing advanced materials for applications in water remediation.
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Affiliation(s)
- Mongkol Tipplook
- Research Initiative for Supra-Materials, Shinshu University, Nagano 380-8553, Japan
| | - Hideki Tanaka
- Research Initiative for Supra-Materials, Shinshu University, Nagano 380-8553, Japan
| | - Tomohito Sudare
- Research Initiative for Supra-Materials, Shinshu University, Nagano 380-8553, Japan
| | - Takeshi Hagio
- Institute of Materials Innovation, Institutes of Innovation for Future Society, Nagoya University, Nagoya 464-8601, Japan
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Nagahiro Saito
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - Katsuya Teshima
- Research Initiative for Supra-Materials, Shinshu University, Nagano 380-8553, Japan
- Department of Materials Chemistry, Shinshu University, Nagano 380-8553, Japan
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6
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Kim HM, Cha BC, Kim DW. Defect- and oxygen-rich nanocarbon derived from solution plasma for bifunctional catalytic activity of oxygen reduction and evolution reactions. RSC Adv 2023; 13:26918-26924. [PMID: 37692343 PMCID: PMC10483487 DOI: 10.1039/d3ra05164a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023] Open
Abstract
The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are key for renewable energy systems, including metal-air batteries, fuel cells, and water electrolysis. In particular, metal-air batteries require multiple catalysts for the ORR and OER. Thus, bifunctional catalysts are required to improve efficiency and simplify catalytic systems. Hence, we developed defect- and oxygen-rich nanocarbons as bifunctional catalysts through a one-pot formation by applying plasma discharge in mixed solvents of benzene with crown ether. Raman and X-ray photoelectron spectroscopy results confirmed that oxygen was embedded and functionalized into the carbon matrix and abundant defects were formed, which highly affected the catalytic activity of the ORR and OER. The obtained CNP-CEs revealed a tuned electron transfer trend to a rapid four-electron pathway (n = 3.5) for the ORR, as well as a decreased onset potential and Tafel slope for the OER. Consequently, CNP-CE-50 exhibited an improved bifunctional catalytic characteristic with the narrowest potential gap between the ORR and OER. We believe that our findings suggest new models for carbon-based bifunctional catalysts and provide a prospective approach for a synthetic procedure of carbon nanomaterials.
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Affiliation(s)
- Hye-Min Kim
- Department of Materials Chemistry, Shinshu University 4-17-1, Wakasato Nagano 3808553 Japan
| | - Byung-Chul Cha
- Advanced Manufacturing Process R&D Group, Ulsan Regional Division, Korea Institute of Industrial Technology (KITECH) 55, Jongga-ro, Jung-gu Ulsan 44313 Korea
| | - Dae-Wook Kim
- Advanced Manufacturing Process R&D Group, Ulsan Regional Division, Korea Institute of Industrial Technology (KITECH) 55, Jongga-ro, Jung-gu Ulsan 44313 Korea
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7
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Thu MM, Chaiammart N, Jongprateep O, Techapiesancharoenkij R, Thant AA, Saito N, Panomsuwan G. Introducing micropores into carbon nanoparticles synthesized via a solution plasma process by thermal treatment and their charge storage properties in supercapacitors. RSC Adv 2023; 13:16136-16144. [PMID: 37305444 PMCID: PMC10248543 DOI: 10.1039/d3ra02314a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 05/15/2023] [Indexed: 06/13/2023] Open
Abstract
Carbon materials synthesized via a solution plasma process (SPP) have recently shown great potential for various applications. However, they mainly possess a meso-macroporous structure with a lack of micropores, which limits their applications for supercapacitors. Herein, carbon nanoparticles (CNPs) were synthesized from benzene via SPP and then subjected to thermal treatment at different temperatures (400, 600, 800, and 1000 °C) in an argon environment. The CNPs exhibited an amorphous phase and were more graphitized at high treatment temperatures. A small content of tungsten carbide particles was also observed, which were encapsulated in CNPs. An increase in treatment temperature led to an increase in the specific surface area of CNPs from 184 to 260 m2 g-1 through the development of micropores, while their meso-macropore structure remained unchanged. The oxygen content of CNPs decreased from 14.72 to 1.20 atom% as the treatment temperature increased due to the degradation of oxygen functionality. The charge storage properties of CNPs were evaluated for supercapacitor applications by electrochemical measurements using a three-electrode system in 1 M H2SO4 electrolyte. The CNPs treated at low temperatures exhibited an electric double layer and pseudocapacitive behavior due to the presence of quinone groups on the carbon surface. With increasing treatment temperature, the electric double layer behavior became more dominant, while pseudocapacitive behavior was suppressed due to the quinone degradation. Regarding cycling stability, the CNPs treated at high temperatures (with a lack of oxygen functionality) were more stable than those treated at low temperatures. This work highlights a way of introducing micropores into CNPs derived from SPP via thermal treatment, which could be helpful for controlling and adjusting their pore structure for supercapacitor applications.
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Affiliation(s)
- Myo Myo Thu
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University Bangkok Thailand
- ICE-Matter Consortium, ASEAN University Network/Southeast Asia Engineering Education Development Network (AUN/SEED-Net), Kasetsart University Bangkok 10900 Thailand
| | - Nattapat Chaiammart
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University Bangkok Thailand
| | - Oratai Jongprateep
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University Bangkok Thailand
- ICE-Matter Consortium, ASEAN University Network/Southeast Asia Engineering Education Development Network (AUN/SEED-Net), Kasetsart University Bangkok 10900 Thailand
| | - Ratchatee Techapiesancharoenkij
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University Bangkok Thailand
- ICE-Matter Consortium, ASEAN University Network/Southeast Asia Engineering Education Development Network (AUN/SEED-Net), Kasetsart University Bangkok 10900 Thailand
| | - Aye Aye Thant
- Department of Physics, Faculty of Science, University of Yangon Yangon 11041 Myanmar
| | - Nagahiro Saito
- Department of Chemical System Engineering, Graduate School of Engineering, Nagoya University Nagoya 464-8603 Japan
| | - Gasidit Panomsuwan
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University Bangkok Thailand
- ICE-Matter Consortium, ASEAN University Network/Southeast Asia Engineering Education Development Network (AUN/SEED-Net), Kasetsart University Bangkok 10900 Thailand
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8
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Romero Valenzuela AE, Chokradjaroen C, Choeichom P, Wang X, Kim K, Saito N. Carbon Fibers Prepared via Solution Plasma-Generated Seeds. MATERIALS (BASEL, SWITZERLAND) 2023; 16:906. [PMID: 36769911 PMCID: PMC9918063 DOI: 10.3390/ma16030906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/09/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Carbon fibers are materials with potential applications for CO2 capture due to their porous structure and high surface areas. Nevertheless, controlling their porosity at a microscale remains challenging. The solution plasma (SP) process provides a fast synthesis route for carbon materials when organic precursors are used. During the discharge and formation of carbon materials in solution, a soot product-denominated solution plasma-generated seeds (SPGS) is simultaneously produced at room temperature and atmospheric pressure. Here, we propose a preparation method for carbon fibers with different and distinctive morphologies. The control over the morphology is also demonstrated by the use of different formulations.
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Affiliation(s)
- Andres Eduardo Romero Valenzuela
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Chayanaphat Chokradjaroen
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Department of International Collaborative Program in Sustainable Materials and Technology for Industries between Nagoya University and Chulalongkorn University, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Pongpol Choeichom
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Xiaoyang Wang
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kyusung Kim
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Nagahiro Saito
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Japan Science and Technology Agency (JST), Strategic International Collaborative Research Program (SICORP), Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Japan Science and Technology Agency (JST), Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA), Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
- Conjoint Research Laboratory in Nagoya University, Shinshu University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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9
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Huang Y, Wang C, Wang R, Zhang Y, Li D, Zhu H, Wang G, Zhang X. Ethanol Solution Plasma Loads Carbon Dots onto 2D HNb 3O 8 for Enhanced Photocatalysis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:1157-1166. [PMID: 36541623 DOI: 10.1021/acsami.2c18551] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Layered metal oxoacids hold potential as photocatalysts due to their facile exfoliation to two-dimensional (2D) nanosheets with a large surface area and a short migration distance for photoexcited charge carriers. However, the utilization of electrons in photocatalytic processes is restricted by the competitive trapping of electrons by metal ions. In this work, we attempt to improve the utilization of photogenerated electrons over exfoliated HNb3O8 nanosheets by solution plasma activation. On dispersing exfoliated HNb3O8 nanosheets in ethanol solution plasma, the defects in HNb3O8 can be engineered, and carbon dots (CDs) can be anchored on the surface of HNb3O8 nanosheets in situ. In comparison with pristine HNb3O8 nanosheets, the rate of photocatalytic hydrogen evolution can be increased by 317.7 times over the HNb3O8/C heterojunction, and the apparent quantum efficiency of hydrogen production can be as high as 5.05%. The reason for the high photocatalytic performance is explored by the comparison of activation between plasma-in-ethanol and plasma-in-water, which reveals that CD anchoring and defect engineering indeed promote charge separation and hence lead to enhanced photocatalytic activity. This work provides an alternative approach to synthesize CDs and activate 2D-layered compounds with MO6 (M = Nb, Ti, and W) octahedral building blocks in the host layer for enhanced photocatalytic evolution of hydrogen.
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Affiliation(s)
- Yu Huang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Changhua Wang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Rui Wang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Yiyan Zhang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Dashuai Li
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Hancheng Zhu
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Guorui Wang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
| | - Xintong Zhang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
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10
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Bae GT, Jang HJ, Jung EY, Lee YR, Park CS, Kim JY, Tae HS. Development of an Atmospheric Pressure Plasma Jet Device Using Four-Bore Tubing and Its Applications of In-Liquid Material Decomposition and Solution Plasma Polymerization. Polymers (Basel) 2022; 14:polym14224917. [PMID: 36433044 PMCID: PMC9696552 DOI: 10.3390/polym14224917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, we describe an atmospheric pressure plasma jet (APPJ) device made of four-bore tubing operable in inhospitable humid environments and introduce two potential applications of liquid material processing: decomposition of aqueous phosphorus compounds and solution-plasma polymerization. A four-bore tube was used as the plasma transfer conduit and two diagonal bores contained metal wires. In the proposed APPJ device, the metal wires serving as electrodes are completely enclosed inside the holes of the multi-bore glass tube. This feature allows the APPJ device to operate both safely and reliably in humid environments or even underwater. Thus, we demonstrate that the proposed electrode-embedded APPJ device can effectively decompose aqueous phosphorus compounds into their phosphate form by directly processing the solution sample. As another application of the proposed APPJ device, we also present the successful synthesis of polypyrrole nanoparticles by solution plasma polymerization in liquid pyrrole.
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Affiliation(s)
- Gyu Tae Bae
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hyo Jun Jang
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Eun Young Jung
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
- The Institute of Electronic Technology, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Ye Rin Lee
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Choon-Sang Park
- Department of Electrical Engineering, Milligan University, Johnson City, TN 37682, USA
| | - Jae Young Kim
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
- Correspondence: (J.Y.K.); (H.-S.T.); Tel.: +82-53-950-6563 (H.-S.T.)
| | - Heung-Sik Tae
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
- Correspondence: (J.Y.K.); (H.-S.T.); Tel.: +82-53-950-6563 (H.-S.T.)
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11
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Matsuyama H, Nakamura J. Size Optimization of a N-Doped Graphene Nanocluster for the Oxygen Reduction Reaction. ACS OMEGA 2022; 7:3093-3098. [PMID: 35097304 PMCID: PMC8793088 DOI: 10.1021/acsomega.1c06509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/04/2022] [Indexed: 06/14/2023]
Abstract
N-Doped graphene nanoclusters (N-GNCs) are promising electrocatalysts for the oxygen reduction reaction (ORR) at the cathode of fuel cells. In this study, the dependence of the ORR activity on the size of N-GNCs was investigated using first-principles calculations based on density functional theory. The maximum electrode potential (U Max) was estimated from the free energy of the reaction intermediates of the ORR. U Max was predicted to show a volcanic trend with respect to the cluster size. The results suggest that C215H36N with a radius of 13.6 Å is the best candidate for ORRs and is better than platinum in terms of U Max. The volcano-shaped plot of U Max is attributed to the switch of the reaction step that determines U Max, which is caused by the destabilization of reaction intermediates. Such changes in the stability of the intermediates can be explained by the decrease in the local density of states at the reaction site, which is due to the development of the so-called edge state at the zigzag edge. The establishment of experimental techniques to control the cluster size and doping position will be the key to superior catalyst preparation in the future.
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Affiliation(s)
| | - Jun Nakamura
- . Phone: +81 (0)42 4435156. Fax: +81 (0)42 4435156
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12
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Behi M, Gholami L, Naficy S, Palomba S, Dehghani F. Carbon dots: a novel platform for biomedical applications. NANOSCALE ADVANCES 2022; 4:353-376. [PMID: 36132691 PMCID: PMC9419304 DOI: 10.1039/d1na00559f] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/09/2021] [Indexed: 05/09/2023]
Abstract
Carbon dots (CDs) are a recently synthesised class of carbon-based nanostructures known as zero-dimensional (0D) nanomaterials, which have drawn a great deal of attention owing to their distinctive features, which encompass optical properties (e.g., photoluminescence), ease of passivation, low cost, simple synthetic route, accessibility of precursors and other properties. These newly synthesised nano-sized materials can replace traditional semiconductor quantum dots, which exhibit significant toxicity drawbacks and higher cost. It is demonstrated that their involvement in diverse areas of chemical and bio-sensing, bio-imaging, drug delivery, photocatalysis, electrocatalysis and light-emitting devices consider them as flawless and potential candidates for biomedical application. In this review, we provide a classification of CDs within their extended families, an overview of the different methods of CDs preparation, especially from natural sources, i.e., environmentally friendly and their unique photoluminescence properties, thoroughly describing the peculiar aspects of their applications in the biomedical field, where we think they will thrive as the next generation of quantum emitters. We believe that this review covers a niche that was not reviewed by other similar publications.
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Affiliation(s)
- Mohammadreza Behi
- School of Chemical and Biomolecular Engineering, The University of Sydney Sydney 2006 Australia
- Institute of Photonics and Optical Science, School of Physics, The University of Sydney Sydney NSW 2006 Australia
| | - Leila Gholami
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Science Mashhad Iran
| | - Sina Naficy
- School of Chemical and Biomolecular Engineering, The University of Sydney Sydney 2006 Australia
| | - Stefano Palomba
- Institute of Photonics and Optical Science, School of Physics, The University of Sydney Sydney NSW 2006 Australia
- The University of Sydney Nano Institute, The University of Sydney Sydney NSW 2006 Australia
| | - Fariba Dehghani
- School of Chemical and Biomolecular Engineering, The University of Sydney Sydney 2006 Australia
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13
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Jang HJ, Jung EY, Parsons T, Tae HS, Park CS. A Review of Plasma Synthesis Methods for Polymer Films and Nanoparticles under Atmospheric Pressure Conditions. Polymers (Basel) 2021; 13:polym13142267. [PMID: 34301024 PMCID: PMC8309454 DOI: 10.3390/polym13142267] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/02/2021] [Accepted: 07/06/2021] [Indexed: 02/06/2023] Open
Abstract
In this paper, we present an overview of recent approaches in the gas/aerosol-through-plasma (GATP) and liquid plasma methods for synthesizing polymer films and nanoparticles (NPs) using an atmospheric-pressure plasma (APP) technique. We hope to aid students and researchers starting out in the polymerization field by compiling the most commonly utilized simple plasma synthesis methods, so that they can readily select a method that best suits their needs. Although APP methods are widely employed for polymer synthesis, and there are many related papers for specific applications, reviews that provide comprehensive coverage of the variations of APP methods for polymer synthesis are rarely reported. We introduce and compile over 50 recent papers on various APP polymerization methods that allow us to discuss the existing challenges and future direction of GATP and solution plasma methods under ambient air conditions for large-area and mass nanoparticle production.
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Affiliation(s)
- Hyo Jun Jang
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (H.J.J.); (E.Y.J.)
| | - Eun Young Jung
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (H.J.J.); (E.Y.J.)
| | - Travis Parsons
- GBS (Global Business Services) IT, The Procter & Gamble Company, Cincinnati, OH 45202, USA;
| | - Heung-Sik Tae
- School of Electronic and Electrical Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (H.J.J.); (E.Y.J.)
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea
- Correspondence: (H.-S.T.); (C.-S.P.)
| | - Choon-Sang Park
- Department of Electronics and Computer Engineering, College of Engineering, Kansas State University, Manhattan, KS 66506, USA
- Correspondence: (H.-S.T.); (C.-S.P.)
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14
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Chokradjaroen C, Niu J, Panomsuwan G, Saito N. Insight on Solution Plasma in Aqueous Solution and Their Application in Modification of Chitin and Chitosan. Int J Mol Sci 2021; 22:4308. [PMID: 33919182 PMCID: PMC8122608 DOI: 10.3390/ijms22094308] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/17/2021] [Accepted: 04/17/2021] [Indexed: 01/09/2023] Open
Abstract
Sustainability and environmental concerns have persuaded researchers to explore renewable materials, such as nature-derived polysaccharides, and add value by changing chemical structures with the aim to possess specific properties, like biological properties. Meanwhile, finding methods and strategies that can lower hazardous chemicals, simplify production steps, reduce time consumption, and acquire high-purified products is an important task that requires attention. To break through these issues, electrical discharging in aqueous solutions at atmospheric pressure and room temperature, referred to as the "solution plasma process", has been introduced as a novel process for modification of nature-derived polysaccharides like chitin and chitosan. This review reveals insight into the electrical discharge in aqueous solutions and scientific progress on their application in a modification of chitin and chitosan, including degradation and deacetylation. The influencing parameters in the plasma process are intensively explained in order to provide a guideline for the modification of not only chitin and chitosan but also other nature-derived polysaccharides, aiming to address economic aspects and environmental concerns.
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Affiliation(s)
- Chayanaphat Chokradjaroen
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan; (C.C.); (J.N.)
| | - Jiangqi Niu
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan; (C.C.); (J.N.)
| | - Gasidit Panomsuwan
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand;
| | - Nagahiro Saito
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan; (C.C.); (J.N.)
- Conjoint Research Laboratory in Nagoya University, Shinshu University, Nagoya 464-8603, Japan
- Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA), Japan Science and Technology Corporation (JST), Nagoya 464-8603, Japan
- Strategic International Collaborative Research Program (SICORP), Japan Science and Technology Corporation (JST), Nagoya 464-8603, Japan
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15
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Boonyeun N, Rujiravanit R, Saito N. Plasma-Assisted Synthesis of Multicomponent Nanoparticles Containing Carbon, Tungsten Carbide and Silver as Multifunctional Filler for Polylactic Acid Composite Films. Polymers (Basel) 2021; 13:polym13070991. [PMID: 33804863 PMCID: PMC8037156 DOI: 10.3390/polym13070991] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/18/2021] [Accepted: 03/20/2021] [Indexed: 01/29/2023] Open
Abstract
Multicomponent nanoparticles containing carbon, tungsten carbide and silver (carbon-WC-Ag nanoparticles) were simply synthesized via in-liquid electrical discharge plasma, the so-called solution plasma process, by using tungsten electrodes immersed in palm oil containing droplets of AgNO3 solution as carbon and silver precursors, respectively. The atomic ratio of carbon:W:Ag in carbon-WC-Ag nanoparticles was 20:1:3. FE-SEM images revealed that the synthesized carbon-WC-Ag nanoparticles with particle sizes in the range of 20–400 nm had a spherical shape with a bumpy surface. TEM images of carbon-WC-Ag nanoparticles showed that tungsten carbide nanoparticles (WCNPs) and silver nanoparticles (AgNPs) with average particle sizes of 3.46 nm and 72.74 nm, respectively, were dispersed in amorphous carbon. The carbon-WC-Ag nanoparticles were used as multifunctional fillers for the preparation of polylactic acid (PLA) composite films, i.e., PLA/carbon-WC-Ag, by solution casting. Interestingly, the coexistence of WCNPs and AgNPs in carbon-WC-Ag nanoparticles provided a benefit for the co-nucleation ability of WCNPs and AgNPs, resulting in enhanced crystallization of PLA, as evidenced by the reduction in the cold crystallization temperature of PLA. At the low content of 1.23 wt% carbon-WC-Ag nanoparticles, the Young’s modulus and tensile strength of PLA/carbon-WC-Ag composite films were increased to 25.12% and 46.08%, respectively. Moreover, the PLA/carbon-WC-Ag composite films possessed antibacterial activities.
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Affiliation(s)
- Nichapat Boonyeun
- The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand;
- Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand
| | - Ratana Rujiravanit
- The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand;
- Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: ; Tel.: +662-218-4132
| | - Nagahiro Saito
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan;
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16
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Simultaneous synthesis of graphite-like and amorphous carbon materials via solution plasma and their evaluation as additive materials for cathode in Li-O 2 battery. Sci Rep 2021; 11:6261. [PMID: 33737609 PMCID: PMC7973806 DOI: 10.1038/s41598-021-85392-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 03/01/2021] [Indexed: 11/21/2022] Open
Abstract
Cathode materials are essential for enhancing electrocatalytic activity in energy-conversion devices. Carbon is one of the most suitable cathodic materials for Li–O2 batteries owing to its chemical and thermal stability. Carbon materials synthesized from tributyl borate (TBB) using a nonthermal solution plasma method were characterized using x‐ray diffraction, Raman, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy, and x-ray photoelectron spectroscopy and were evaluated as additive materials for cathodes in a Li–O2 battery. Two separate carbon materials were formed at the same time, a carbon dispersed in solution and a carbon precipitate at the bottom of the reactor, which had amorphous and graphite-like structures, respectively. The amorphous carbon contained boron and tungsten carbide, and the graphite-like carbon had more defects and electronic conductivity. The crystallinity and density of defects in the graphite-like carbon could be tuned by changing the SP operating frequency. The Li–O2 battery with the amorphous carbon containing boron and tungsten carbide was found to have a high capacity, while the one with the graphite-like carbon showed an affinity for the formation of Li2O2, which is the desired discharge product, and exhibited high cycling performance.
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17
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Cao X, Shen Q, Zhuang Y, Zhuang G, Chen X. Atmospheric plasma reaction synthesised Pt x Fe 1-x /graphene and TiO 2 nanoparticles/graphene for efficient dye-sensitized solar cells. RSC Adv 2021; 11:6464-6471. [PMID: 35423170 PMCID: PMC8694902 DOI: 10.1039/d0ra10067f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 01/30/2021] [Indexed: 11/21/2022] Open
Abstract
We report a facile atmospheric plasma reaction synthesis of Pt x Fe1-x alloys with the different Pt/Fe stoichiometric ratio in Pt x Fe1-x alloys on graphene (G) as efficient counter electrode (CE) materials and atmospheric plasma reaction synthesised TiO2 nanoparticles/G as photoanode in dye-sensitized solar cells (DSSCs). Well-distributed Pt x Fe1-x nanoparticles or TiO2 nanoparticles on the G surface were obtained. Remarkably, DSSCs prepared by the Pt0.7Fe0.3/G CE have much higher catalytic activity and stable durability than Pt1Fe0/G CE. The as-synthesized Pt0.7Fe0.3/G CE exhibits the largest value of |J red| = 1.479 mA and the lowest value of R ct = 2.86 Ω. With the Pt0.7Fe0.3/G as CE and TiO2/G as the photoanode, the DSSC can deliver an overall power conversion efficiency (PCE) of 10.13%, which is significantly higher than the 9.72% of the expensive Pt1Fe0/G counterpart. The obtained results indicate that the Pt x Fe1-x /G nanohybrids fabricated using atmospheric plasma reaction exhibited potential as a reference for next generation CE materials in highly efficient DSSCs. We believe that this work provides an effective strategy for optimizing Pt utilization for the low-cost and efficient application of DSSCs.
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Affiliation(s)
- Xiaoyu Cao
- School of Physics and Electronic Engineering, Yancheng Teachers University Yancheng 224051 PR China
| | - Qingyu Shen
- School of Physics and Electronic Engineering, Yancheng Teachers University Yancheng 224051 PR China
| | - Yefei Zhuang
- School of Physics and Electronic Engineering, Yancheng Teachers University Yancheng 224051 PR China
| | - Guoce Zhuang
- School of Physics and Electronic Engineering, Yancheng Teachers University Yancheng 224051 PR China
| | - Xiaobo Chen
- School of Physics and Electronic Engineering, Yancheng Teachers University Yancheng 224051 PR China
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18
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Chen K, Kim S, Je M, Choi H, Shi Z, Vladimir N, Kim KH, Li OL. Ultrasonic Plasma Engineering Toward Facile Synthesis of Single-Atom M-N 4/N-Doped Carbon (M = Fe, Co) as Superior Oxygen Electrocatalyst in Rechargeable Zinc-Air Batteries. NANO-MICRO LETTERS 2021; 13:60. [PMID: 34138279 PMCID: PMC8187693 DOI: 10.1007/s40820-020-00581-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/08/2020] [Indexed: 05/19/2023]
Abstract
As bifunctional oxygen evolution/reduction electrocatalysts, transition-metal-based single-atom-doped nitrogen-carbon (NC) matrices are promising successors of the corresponding noble-metal-based catalysts, offering the advantages of ultrahigh atom utilization efficiency and surface active energy. However, the fabrication of such matrices (e.g., well-dispersed single-atom-doped M-N4/NCs) often requires numerous steps and tedious processes. Herein, ultrasonic plasma engineering allows direct carbonization in a precursor solution containing metal phthalocyanine and aniline. When combining with the dispersion effect of ultrasonic waves, we successfully fabricated uniform single-atom M-N4 (M = Fe, Co) carbon catalysts with a production rate as high as 10 mg min-1. The Co-N4/NC presented a bifunctional potential drop of ΔE = 0.79 V, outperforming the benchmark Pt/C-Ru/C catalyst (ΔE = 0.88 V) at the same catalyst loading. Theoretical calculations revealed that Co-N4 was the major active site with superior O2 adsorption-desorption mechanisms. In a practical Zn-air battery test, the air electrode coated with Co-N4/NC exhibited a specific capacity (762.8 mAh g-1) and power density (101.62 mW cm-2), exceeding those of Pt/C-Ru/C (700.8 mAh g-1 and 89.16 mW cm-2, respectively) at the same catalyst loading. Moreover, for Co-N4/NC, the potential difference increased from 1.16 to 1.47 V after 100 charge-discharge cycles. The proposed innovative and scalable strategy was concluded to be well suited for the fabrication of single-atom-doped carbons as promising bifunctional oxygen evolution/reduction electrocatalysts for metal-air batteries.
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Affiliation(s)
- Kai Chen
- Department of Materials Science and Engineering, Pusan National University, 30 Jangjeon-dong, Geumjeong-gu, Busan, 609-735, Republic of Korea
| | - Seonghee Kim
- Department of Materials Science and Engineering, Pusan National University, 30 Jangjeon-dong, Geumjeong-gu, Busan, 609-735, Republic of Korea
| | - Minyeong Je
- Theoretical Materials and Chemistry Group, Institute of Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939, Cologne, Germany
| | - Heechae Choi
- Theoretical Materials and Chemistry Group, Institute of Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939, Cologne, Germany.
| | - Zhicong Shi
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Nikola Vladimir
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lucica 5, 10002, Zagreb, Croatia
| | - Kwang Ho Kim
- Department of Materials Science and Engineering, Pusan National University, 30 Jangjeon-dong, Geumjeong-gu, Busan, 609-735, Republic of Korea.
- Global Frontier R&D Center for Hybrid Interface Materials, 30 Jangjeon-dong, Geumjeong-gu, Busan, 46241, Republic of Korea.
| | - Oi Lun Li
- Department of Materials Science and Engineering, Pusan National University, 30 Jangjeon-dong, Geumjeong-gu, Busan, 609-735, Republic of Korea.
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19
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Hybrid Molybdenum Carbide/Heteroatom-Doped Carbon Electrocatalyst for Advanced Oxygen Evolution Reaction in Hydrogen Production. Catalysts 2020. [DOI: 10.3390/catal10111290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Hydrogen energy is one of the key technologies that can help to prevent global warming. A water electrolysis process can be used to produce hydrogen, in which hydrogen is produced at one electrode of the electrochemical cell, and oxygen is produced at the other electrode. On the other hand, the oxygen evolution reaction (OER) requires multiple reaction steps and precious-metal-based catalysts (e.g., Ru/C, Ir/C, RuO2, and IrO2) as electrocatalysts to improve the reaction rate. Their high cost and limited supply, however, limit their applications to the mass production of hydrogen. In this study, boron, nitrogen-doped carbon incorporated with molybdenum carbide (MoC-BN/C) was synthesized to replace the precious-metal-based catalysts in the OER. B, N-doped carbon with nanosized molybdenum nanoparticles was fabricated by plasma engineering. The synthesized catalysts were heat-treated at 600, 700, and 800 °C in nitrogen for one hour to enhance the conductivity. The best MoC-BN/C electrocatalysts (heated at 800 °C) exhibited superior OER catalytic activity: 1.498 V (vs. RHE) and 1.550 V at a current density of 10 and 100 mA/cm2, respectively. The hybrid electrocatalysts even outperformed the noble electrocatalyst (5 wt.% Ru/C) with higher stability. Therefore, the hybrid electrocatalyst can replace expensive precious-metal-based catalysts for the upcoming hydrogen economy.
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20
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Zhou Y, Nishina Y. Bottom-up synthesis of nitrogen-doped nanocarbons by a combination of metal catalysis and a solution plasma process. NANOSCALE ADVANCES 2020; 2:4417-4420. [PMID: 36132902 PMCID: PMC9417750 DOI: 10.1039/d0na00327a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/18/2020] [Indexed: 06/16/2023]
Abstract
We aimed to develop the bottom-up synthesis of nanocarbons with specific functions from molecules without any leaving group, halogen atom and boronic acid, by employing a metal catalyst under solution plasma irradiation. Pyridine was used as a source of carbon. In the presence of a Pd catalyst, the plasma treatment enabled the synthesis of N-doped carbons with a pyridinic configuration, which worked as an active catalytic site for the oxygen reduction reaction.
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Affiliation(s)
- Yang Zhou
- Graduate School of Natural Science and Technology, Okayama University 3-1-1, Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Yuta Nishina
- Graduate School of Natural Science and Technology, Okayama University 3-1-1, Tsushimanaka, Kita-ku Okayama 700-8530 Japan
- Research Core for Interdisciplinary Sciences, Okayama University 3-1-1, Tsushimanaka, Kita-ku Okayama 700-8530 Japan
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21
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Phan PQ, Chae S, Pornaroontham P, Muta Y, Kim K, Wang X, Saito N. In situ synthesis of copper nanoparticles encapsulated by nitrogen-doped graphene at room temperature via solution plasma. RSC Adv 2020; 10:36627-36635. [PMID: 35517970 PMCID: PMC9057025 DOI: 10.1039/d0ra07162e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 09/18/2020] [Indexed: 11/27/2022] Open
Abstract
Metal–carbon core–shell nanostructures have gained research interest due to their better performances in not only stability but also other properties, such as catalytic, optical, and electrical properties. However, they are limited by complicated synthesis approaches. Therefore, the development of a simple method for the synthesis of metal–carbon core–shell nanostructures is of great significance. In this work, a novel Cu–core encapsulated by a N-doped few-layer graphene shell was successfully synthesized in a one-pot in-liquid plasma discharge, so-called solution plasma (SP), to our knowledge for the first time. The synthesis was conducted at room temperature and atmospheric pressure by using a pair of copper electrodes submerged in a DMF solution as the precursor. The core–shell structure of the obtained products was confirmed by HR-TEM, while further insight information was explained from the results of XRD, Raman, and XPS measurements. The obtained Cu-core encapsulated by the N-doped few-layer graphene shell demonstrated relatively high stability in acid media, compared to the commercial bare Cu particles. Moreover, the stability was found to depend on the thickness of the N-doped few-layer graphene shell which can be tuned by adjusting the SP operating conditions. An excellent corrosion protection for copper nanoparticles by nitrogen-doped few-layer graphene via solution plasma process.![]()
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Affiliation(s)
- Phu Quoc Phan
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Sangwoo Chae
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan .,Japan Science and Technology Corporation (JST), Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA) Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Phuwadej Pornaroontham
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan .,Japan Science and Technology Corporation (JST), Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA) Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Yukihiro Muta
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan .,Japan Science and Technology Corporation (JST), Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA) Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Kyusung Kim
- National Institute of Advanced Industrial Science and Technology (AIST) Anagahora, Shimoshidami, Moriyama Nagoya 463-8560 Japan
| | - Xiaoyang Wang
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan .,Japan Science and Technology Corporation (JST), Strategic International Collaborative Research Program (SICORP) Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Nagahiro Saito
- Department of Chemical Systems Engineering, Graduate School of Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan .,Conjoint Research Laboratory in Nagoya University, Shinshu University Furo-cho, Chikusa-ku Nagoya 464-8603 Japan.,Japan Science and Technology Corporation (JST), Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA) Furo-cho, Chikusa-ku Nagoya 464-8603 Japan.,Japan Science and Technology Corporation (JST), Strategic International Collaborative Research Program (SICORP) Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
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22
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Kim H, Kim DY, Zen S, Kang J, Takeuchi N. Novel Approach Through the Harmonized Sulfur in Disordered Carbon Structure for High-Efficiency Sodium-Ion Exchange. ACS APPLIED MATERIALS & INTERFACES 2020; 12:43750-43760. [PMID: 32845607 DOI: 10.1021/acsami.0c12677] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Sodium-ion batteries (SiBs) have recently attracted considerable interest due to the plentiful supply of raw materials for their production and their electrochemical behavior, which is similar to that of lithium-ion batteries (LiBs). However, the relatively larger radius of sodium ions than that of lithium ions is not suitable for storage in conventional graphite, which is widely used as the anode. To resolve this issue, in this study, we developed a new harmonized carbon material with a three-dimensional (3D) grapevine-like structure and a sulfur component using an efficient synthesis process. On the basis of these advantages, the harmonized sulfur-carbon material exhibited a highly reversible capacity of 146 mA h g-1 at an extremely high specific current of 100 A g-1 and long-term galvanostatic cycling stability at 10 and 100 A g-1 with superior electrochemical performance. Our results are anticipated to provide new insights into SiB anode materials that would advance their production.
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Affiliation(s)
- Hanvin Kim
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Dae-Yeong Kim
- Division of Marine Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea
| | - Shungo Zen
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Jun Kang
- Division of Marine Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea
| | - Nozomi Takeuchi
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan
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23
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Kim K, Chokradjaroen C, Saito N. Solution plasma: new synthesis method of N-doped carbon dots as ultra-sensitive fluorescence detector for 2,4,6-trinitrophenol. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/abb9fa] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Abstract
Herein, we report the synthesis of nitrogen-doped carbon dots (NCDs) through solution plasma (SP) for the first time. The SP method occurs a rapid dissociation of molecules, such as organic compounds, caused by an electrical discharge between electrodes immersed in a solution. The dissociation can result in the creation of various radicals such as ·C2, ·CN, and ·H which enable the rapid synthesis of carbon dots (CDs). The unique reaction of radicals allowed the formation of CDs with high N concentration and functionalization of the surface in a short time. In this study, by using the SP method, a very fine NCDs with size of 6 nm were synthesized from a pyridine/water mixture in just 10 min. Bright blue fluorescence (410 nm) with a high quantum yield (61%) was observed due to the high N concentration and the surface passivation. From the potential application point of view, the synthesized NCDs showed an excellent detection property for 2,4,6-trinitrophenol (TNP) by fluorescence quenching effect. It was due to rich amino-functional groups which act as a reaction pathway to TNP. This phenomenon was caused by the synergetic effect of a photo-induced electron transfer with the assistance of proton transfer-assisted electron transfer.
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24
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Shin JG, Shin BJ, Jung EY, Park CS, Kim JY, Tae HS. Effects of a Dielectric Barrier Discharge (DBD) on Characteristics of Polyaniline Nanoparticles Synthesized by a Solution Plasma Process with an Ar Gas Bubble Channel. Polymers (Basel) 2020; 12:polym12091939. [PMID: 32867312 PMCID: PMC7564976 DOI: 10.3390/polym12091939] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 11/16/2022] Open
Abstract
The quality of polyaniline nanoparticles (PANI NPs) synthesized in plasma polymerization depends on the discharge characteristics of a solution plasma process (SPP). In this paper, the low temperature dielectric barrier discharge (DBD) is introduced to minimize the destruction of aniline molecules induced by the direct current (DC) spark discharge. By adopting the new electrode structure coupled with a gas channel, a low temperature DBD is successfully implemented in a SPP, for the first time, thus inducing an effective interaction between the Ar plasma and aniline monomer. We examine the effects of a low temperature DBD on characteristics of polyaniline nanoparticles synthesized by a SPP with an Ar gas bubble channel. As a result, both carbonization of aniline monomer and erosion of the electrode are significantly reduced, which is confirmed by analyses of the synthesized PANI NPs.
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Affiliation(s)
- Jun-Goo Shin
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (J.-G.S.); (E.Y.J.)
| | - Bhum Jae Shin
- Department of Electronics Engineering, Sejong University, Seoul 05006, Korea;
| | - Eun Young Jung
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (J.-G.S.); (E.Y.J.)
| | - Choon-Sang Park
- Department of Electronics and Computer Engineering, College of Engineering, Kansas State University, Manhattan, NY 66506, USA;
| | - Jae Young Kim
- Department of New Biology, Daegu Gyeongbuk Institute of Science & Technology, Daegu 42988, Korea;
| | - Heung-Sik Tae
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea; (J.-G.S.); (E.Y.J.)
- Correspondence: ; Tel.: +82-53-950-6563
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25
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Yu F, Liu M, Ma C, Di L, Dai B, Zhang L. A Review on the Promising Plasma-Assisted Preparation of Electrocatalysts. NANOMATERIALS 2019; 9:nano9101436. [PMID: 31658708 PMCID: PMC6835459 DOI: 10.3390/nano9101436] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/27/2019] [Accepted: 10/03/2019] [Indexed: 01/14/2023]
Abstract
Electrocatalysts are becoming increasingly important for both energy conversion and environmental catalysis. Plasma technology can realize surface etching and heteroatom doping, and generate highly dispersed components and redox species to increase the exposure of the active edge sites so as to improve the surface utilization and catalytic activity. This review summarizes the recent plasma-assisted preparation methods of noble metal catalysts, non-noble metal catalysts, non-metal catalysts, and other electrochemical catalysts, with emphasis on the characteristics of plasma-assisted methods. The influence of the morphology, structure, defect, dopant, and other factors on the catalytic performance of electrocatalysts is discussed.
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Affiliation(s)
- Feng Yu
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Mincong Liu
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Cunhua Ma
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Lanbo Di
- College of Physical Science and Technology, Dalian University, Dalian 116622, China.
| | - Bin Dai
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China.
| | - Lili Zhang
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research, Jurong Island 627833, Singapore.
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26
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Kim DY, Kim HV, Kang J. In Situ Synthesis of Silicon-Carbon Composites and Application as Lithium-Ion Battery Anode Materials. MATERIALS 2019; 12:ma12182871. [PMID: 31492003 PMCID: PMC6765966 DOI: 10.3390/ma12182871] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 08/28/2019] [Accepted: 09/03/2019] [Indexed: 11/16/2022]
Abstract
Silicon can be used in a variety of applications. Particularly, silicon particles are attracting increased attention as energy storage materials for lithium-ion batteries. However, silicon has a limited cycling performance owing to its peeling from the current collector and the volume expansion that occurs during alloying with lithium in the charging process. Significant contributors to this problem are the even distribution of silicon nanoparticles within the carbon matrix and their deep placement in the internal structure. In this study, we synthesized silicon nanoparticles and carbon materials via a bottom-up approach using a new method called plasma in solution. Silicon nanoparticles and the carbon matrix were synthesized in a structure similar to carbon black. It was confirmed that the silicon particles were evenly distributed in the carbon matrix. In addition, the evaluation of the electrochemical performance of the silicon-carbon matrix (Si-C) composite material showed that it exhibited stable cycling performance with high reversible capacity.
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Affiliation(s)
- Dae-Yeong Kim
- Division of Marine Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea.
| | - Han-Vin Kim
- Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan.
| | - Jun Kang
- Division of Marine Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea.
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27
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Li OL, Shi Z, Lee H, Ishizaki T. Enhanced Electrocatalytic Stability of Platinum Nanoparticles Supported on Sulfur-Doped Carbon using in-situ Solution Plasma. Sci Rep 2019; 9:12704. [PMID: 31481710 PMCID: PMC6722099 DOI: 10.1038/s41598-019-49194-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 08/20/2019] [Indexed: 11/09/2022] Open
Abstract
The metal-air battery is a form of renewable energy generation technology that produces energy electrochemically and can address energy concerns in the near future. However, state-of-the-art Pt electrocatalysts often suffer from agglomeration or detachment from carbon supports under prolonged operation, eventually limiting the long-term utilization of metal-air batteries. In this work, Pt nanoparticles were deposited on sulfur-doped nanocarbon to increase its stability. We first synthesized sulfur-doped (S-doped) and pristine carbon as support materials via a plasma process, and thereafter loaded platinum (Pt) nanoparticles onto the S-doped and pristine carbon matrix. From a sintering test at 600 °C, the Pt nanoparticles supported on pristine carbon increased from 2.4 to 5.2 nm; meanwhile, the average size of Pt NPs supported on S-doped carbon only increased from 2.2 to 2.51 nm. From the electrochemical analyses, the mass activity of Pt on pristine and S-doped carbon supports decreased by 25% and 10%, respectively, after 1500 cycles. The results proposed that the sulfide C-S-C bond provided a strong platinum-S-doped carbon support interaction between the support materials and the loaded Pt nanoparticles. Thus, S-doped carbon supports can serve as a stabilizer of Pt nanoparticles to enhance their durability in the application of metal-air batteries and other electrochemical devices.
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Affiliation(s)
- Oi Lun Li
- School of Materials Science and Engineering, Pusan National University, Busan, 46241, Korea
| | - Zhicong Shi
- School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China
| | - Hoonseung Lee
- Energy Environment Center Fusion Energy Team, Korea Marine Equipment Research Institute, Busan, 49111, Korea
| | - Takahiro Ishizaki
- Department of Materials Science and Engineering, College of Engineering, Shibaura Institute of Technology, Tokyo, 135-8548, Japan.
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28
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Kim DY, Kim DH, Kim SH, Lee EK, Park SK, Lee JW, Yun YS, Choi SY, Kang J. Nano Hard Carbon Anodes for Sodium-Ion Batteries. NANOMATERIALS 2019; 9:nano9050793. [PMID: 31126100 PMCID: PMC6567009 DOI: 10.3390/nano9050793] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 05/14/2019] [Accepted: 05/17/2019] [Indexed: 11/16/2022]
Abstract
A hindrance to the practical use of sodium-ion batteries is the lack of adequate anode materials. By utilizing the co-intercalation reaction, graphite, which is the most common anode material of lithium-ion batteries, was used for storing sodium ion. However, its performance, such as reversible capacity and coulombic efficiency, remains unsatisfactory for practical needs. Therefore, to overcome these drawbacks, a new carbon material was synthesized so that co-intercalation could occur efficiently. This carbon material has the same morphology as carbon black; that is, it has a wide pathway due to a turbostratic structure, and a short pathway due to small primary particles that allows the co-intercalation reaction to occur efficiently. Additionally, due to the numerous voids present in the inner amorphous structure, the sodium storage capacity was greatly increased. Furthermore, owing to the coarse co-intercalation reaction due to the surface pore structure, the formation of solid-electrolyte interphase was greatly suppressed and the first cycle coulombic efficiency reached 80%. This study shows that the carbon material alone can be used to design good electrode materials for sodium-ion batteries without the use of next-generation materials.
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Affiliation(s)
- Dae-Yeong Kim
- Division of Marine Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea.
| | - Dong-Hyun Kim
- Korea Maritime Equipment Research Institute/ICT Convergence Team, 435 Haeyang-ro, Yeongdo-gu, Busan 49111, Korea.
| | - Soo-Hyun Kim
- Korea Maritime Equipment Research Institute/ICT Convergence Team, 435 Haeyang-ro, Yeongdo-gu, Busan 49111, Korea.
| | - Eun-Kyung Lee
- Department of Ocean Advanced Materials Convergence Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea.
| | - Sang-Kyun Park
- Division of Marine Information Technology, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea.
| | - Ji-Woong Lee
- Division of Marine Information Technology, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea.
| | - Yong-Sup Yun
- Division of Marine System Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea.
| | - Si-Young Choi
- Department of Materials Science and Engineering, POSTECH, 77 Cheongam-ro, Pohang 37673, Korea.
| | - Jun Kang
- Division of Marine Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan 49112, Korea.
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29
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Lee S, Saito N. Enhancement of nitrogen self-doped nanocarbons electrocatalyst via tune-up solution plasma synthesis. RSC Adv 2018; 8:35503-35511. [PMID: 35547914 PMCID: PMC9088181 DOI: 10.1039/c8ra06614k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 09/17/2018] [Indexed: 11/21/2022] Open
Abstract
The development of a metal-free carbon based electrocatalyst for the oxygen reduction reaction (ORR) is an essential issue for energy conversion systems. Herein, we suggest a tune-up solution plasma (SP) synthesis based on a simple one-step and cost-effective method to fabricate nitrogen self-doped graphitic carbon nanosheets (NGS) as an electrocatalyst. This novel strategy using a low-pass filter circuit provides plasma stability and energy control during discharge in pyridine, determining the graphitic structure of nanocarbons doped with nitrogen. Notably, NGS have a relatively high surface area (621 m2 g-1), and high contents of nitrogen bonded as pyridinic-N and pyrrolic-N of 55.5 and 21.3%, respectively. As an efficient metal-free electrocatalyst, NGS exhibit a high onset potential (-0.18 V vs. Ag/AgCl) and a 3.8 transferred electron pathway for ORR in alkaline solution, as well as better long-term durability (4% current decrease after 10 000 s of operation) than commercial Pt/C (22% current drop). From this point of view, the nitrogen self-doped graphitic carbon nanosheet material synthesized using the tune-up SP system is a promising catalyst for the ORR, as an alternative to a Pt catalyst for application in energy conversion devices.
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Affiliation(s)
- SeungHyo Lee
- Graduate School of Materials Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya Japan
| | - Nagahiro Saito
- Graduate School of Materials Engineering, Nagoya University Furo-cho, Chikusa-ku Nagoya Japan
- Green Mobility Collaborative Research Center, Nagoya University Furo-cho, Chikusa-ku Nagoya Japan
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30
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Kim HJ, Shin JG, Park CS, Kum DS, Shin BJ, Kim JY, Park HD, Choi M, Tae HS. In-Liquid Plasma Process for Size- and Shape-Controlled Synthesis of Silver Nanoparticles by Controlling Gas Bubbles in Water. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E891. [PMID: 29799512 PMCID: PMC6025040 DOI: 10.3390/ma11060891] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 12/02/2022]
Abstract
Most methods controlling size and shape of metal nanoparticles are chemical methods, and little work has been done using only plasma methods. Size- and shape-controlled synthesis of silver nanoparticles (Ag NPs) is proposed based on adjusting the gas bubble formation produced between two silver electrodes. The application of a voltage waveform with three different pulse widths during a plasma process in water can generate different gas bubble formations. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) images of Ag NPs synthesized using three different bubble formations reveal that spherical Ag NPs are synthesized when very tiny bubbles are generated between two electrodes or when only the grounded electrode is enveloped with large gas bubbles, but Ag nanoplates are synthesized when both electrodes are completely enveloped with large gas bubbles.
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Affiliation(s)
- Hyun-Jin Kim
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea.
- SEMES Co. Ltd., Cheonan 31040, Korea.
| | - Jun-Goo Shin
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea.
| | - Choon-Sang Park
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea.
| | - Dae Sub Kum
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea.
| | - Bhum Jae Shin
- Department of Electronics Engineering, Sejong University, Seoul 05006, Korea.
| | - Jae Young Kim
- Department of New Biology, Daegu Gyeongbuk Institute of Science & Technology, Daegu 42988, Korea.
| | - Hyung-Dal Park
- Department of Mechanical Equipment Development, Radiation Technology eXcellence, Daejeon 34025, Korea.
| | - Muhan Choi
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea.
| | - Heung-Sik Tae
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, Daegu 41566, Korea.
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31
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Kang J, Kim HV, Chae SA, Kim KH. A New Strategy for Maximizing the Storage Capacity of Lithium in Carbon Materials. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1704394. [PMID: 29603619 DOI: 10.1002/smll.201704394] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/07/2018] [Indexed: 06/08/2023]
Abstract
A novel strategy for maximizing the lithium storage capacity of carbon materials is reported. To redesign the interior structure, a large amount of Li, 4 wt%, is doped into the carbon during its synthesis. The Li-doped carbon is subsequently annealed, during which the diffusion of Li induces a disordered structure, thereby generating many nanocavities. The diffused Li atoms aggregate into a superdense state within the carbon structure; when the Li agglomerates escape from the carbon during the delithiation process, new void spaces are created at their location. Thus, the interior of carbon is evacuated to form a new structure capable of storing a large amount of Li, realizing a high reversible capacity during charging. At a rate of 1 C, the average reversible capacity of the material is three times higher than that of commercial graphite, with a stable cycling performance over 300 cycles. This is a remarkably improved Li storage performance for pure carbon, without the need for the silicon, tin, or transition metal oxide, that are becoming popular as next-generation materials. Therefore, this novel strategy can potentially aid in the design of high-performance materials via better carbon material design and combinations with other types of materials.
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Affiliation(s)
- Jun Kang
- Division of Marine Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan, 606-791, Republic of Korea
| | - Han-Vin Kim
- Division of Marine Engineering, Korea Maritime and Ocean University, 727 Taejong-ro, Yeongdo-gu, Busan, 606-791, Republic of Korea
| | - Seen-Ae Chae
- Western Seoul Center, Korea Basic Science Institute, Seoul, 03759, South Korea
| | - Kwang-Ho Kim
- School of Materials Science and Engineering, Pusan National University, Busandaehak-ro 63 beon-gil, Geumjeong-gu, Busan, 609-735, Republic of Korea
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32
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Wang Z, Zhang Y, Neyts EC, Cao X, Zhang X, Jang BWL, Liu CJ. Catalyst Preparation with Plasmas: How Does It Work? ACS Catal 2018. [DOI: 10.1021/acscatal.7b03723] [Citation(s) in RCA: 237] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhao Wang
- Tianjin Co-Innovation Center of Chemical Science & Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Yao Zhang
- Tianjin Co-Innovation Center of Chemical Science & Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Erik C. Neyts
- Department
of Chemistry, Research Group PLASMANT, University of Antwerp, Universiteitsplein
1, 2610 Antwerp, Belgium
| | - Xinxiang Cao
- Tianjin Co-Innovation Center of Chemical Science & Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Xiaoshan Zhang
- Tianjin Co-Innovation Center of Chemical Science & Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Ben W.-L. Jang
- Department of Chemistry, Texas A&M University-Commerce, 2600 South Neal Street, Commerce, Texas 75429-3011, United States
| | - Chang-jun Liu
- Tianjin Co-Innovation Center of Chemical Science & Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
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33
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Cvetanović N, Galmiz O, Synek P, Zemánek M, Brablec A, Hoder T. Electron density in surface barrier discharge emerging at argon/water interface: quantification for streamers and leaders. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1361-6595/aaa578] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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34
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Pitchaimuthu S, Honda K, Suzuki S, Naito A, Suzuki N, Katsumata KI, Nakata K, Ishida N, Kitamura N, Idemoto Y, Kondo T, Yuasa M, Takai O, Ueno T, Saito N, Fujishima A, Terashima C. Solution Plasma Process-Derived Defect-Induced Heterophase Anatase/Brookite TiO 2 Nanocrystals for Enhanced Gaseous Photocatalytic Performance. ACS OMEGA 2018; 3:898-905. [PMID: 31457936 PMCID: PMC6641279 DOI: 10.1021/acsomega.7b01698] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 01/11/2018] [Indexed: 05/24/2023]
Abstract
We report a simple room-temperature synthesis route for increasing the reactivity of a TiO2 photocatalyst using a solution plasma process (SPP). Hydrogen radicals generated from the SPP chamber interact with the TiO2 photocatalyst feedstock, transforming its crystalline phase and introducing oxygen vacancy defects. In this work, we examined a pure anatase TiO2 as a model feedstock because of its photocatalytic attributes and well-characterized properties. After the SPP treatment, the pure anatase crystalline phase was transformed to an anatase/brookite heterocrystalline phase with oxygen vacancies. Furthermore, the SPP treatment promoted the absorption of both UV and visible light by TiO2. As a result, TiO2 treated by the SPP for 3 h showed a high gaseous photocatalytic performance (91.1%) for acetaldehyde degradation to CO2 compared with the activity of untreated TiO2 (51%). The SPP-treated TiO2 was also more active than nitrogen-doped TiO2 driven by visible light (66%). The overall photocatalytic performance was related to the SPP treatment time. The SPP technique could be used to enhance the activity of readily available feedstocks with a short processing time. These results demonstrate the potential of this method for modifying narrow-band gap metal oxides, metal sulfides, and polymer composite-based catalyst materials. The modifications of these materials are not limited to photocatalysts and could be used in a wide range of energy and environment-based applications.
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Affiliation(s)
- Sudhagar Pitchaimuthu
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
- Multi-functional
Photocatalyst and Coatings Group, SPECIFIC, College of Engineering, Swansea University (Bay Campus), Swansea SA1 8EN, Wales, U.K.
| | - Kaede Honda
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shoki Suzuki
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Akane Naito
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Norihiro Suzuki
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Ken-ichi Katsumata
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Kazuya Nakata
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Naoya Ishida
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Naoto Kitamura
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Yasushi Idemoto
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Takeshi Kondo
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Makoto Yuasa
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Osamu Takai
- Materials
and Surface Engineering Research Institute, Kanto Gakuin University, 1162-2 Ogikubo, Odawara, Kanagawa 250-0042, Japan
| | - Tomonaga Ueno
- Department
of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Nagahiro Saito
- Department
of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Akira Fujishima
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Chiaki Terashima
- Photocatalysis
International Research Center, Research Institute
for Science & Technology, and Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
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35
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Abstract
The solution plasma process (SPP), known as non-equilibrium cold plasma at atmospheric pressure and room temperature, was used to investigate the synthesis of nitrogen-carbon nasnosheets (NCNs). To verify the effect of elementary composition and structure of N-methyl-2-pyrrolidone (NMP), various precursors were used in the SPP to synthesize NCNs via the bottom-up synthesis method for the first time. The NCNs were analyzed by transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. Among the various precursors, SPP of 2-pyrrolidone was demonstrated to facilitate the formation of highly ordered NCNs. On the other hand, the SPP with cyclopentanone, cyclohexanone and pyrrole did not lead to the formation of carbon nanosheets. The results of this study would uncover new parameter fields for the growth of heteroatom-carbon nanosheets using this synthesis system. In addition, the study is expected to contribute toward research in improving the large-area growth and quality of two-dimensional nanostructures, such as heteroatom-carbon nanosheets or graphene, for various applications in other synthesis methods.
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Horikoshi S, Serpone N. In-liquid plasma: a novel tool in the fabrication of nanomaterials and in the treatment of wastewaters. RSC Adv 2017. [DOI: 10.1039/c7ra09600c] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Attempts to generate plasma in liquids have been successful and various devices have been proposed.
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Affiliation(s)
- S. Horikoshi
- Department of Materials and Life Sciences
- Faculty of Science and Technology
- Sophia University
- Tokyo 102-8554
- Japan
| | - N. Serpone
- PhotoGreen Laboratory
- Dipartimento di Chimica
- Università di Pavia
- Pavia 27100
- Italy
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