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Abstract
Plasma-enhanced chemical vapor deposition (PECVD) was used to produce new Ru-based thin catalytic films. The surface molecular structure of the films was examined by X-ray photoelectron spectroscopy (XPS). To determine the electro- and photoelectrochemical properties, the oxygen evolution reaction (OER) process was investigated by linear sweep voltammetry (LSV) at pH = 13.6. It was found that Ru atoms were mainly in the metallic state (Ru0) in the as-deposited films, whereas after the electrochemical stabilization, higher oxidation states, mainly Ru+4 (RuO2), were formed. The stabilized films exhibited high catalytic activity in OER—for the electrochemical process, the onset and η10 overpotentials were approx. 220 and 350 mV, respectively, while for the photoelectrochemical process, the pure photocurrent density of about 160 mA/cm2 mg was achieved at 1.6 V (vs. reversible hydrogen electrode (RHE)). The plasma-deposited RuOX catalyst appears to be an interesting candidate for photoanode material for photoelectrochemical (PEC) water splitting.
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Cored J, García-Ortiz A, Iborra S, Climent MJ, Liu L, Chuang CH, Chan TS, Escudero C, Concepción P, Corma A. Hydrothermal Synthesis of Ruthenium Nanoparticles with a Metallic Core and a Ruthenium Carbide Shell for Low-Temperature Activation of CO2 to Methane. J Am Chem Soc 2019; 141:19304-19311. [DOI: 10.1021/jacs.9b07088] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jorge Cored
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Andrea García-Ortiz
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Sara Iborra
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - María J. Climent
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Lichen Liu
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Cheng-Hao Chuang
- Department of Physics, Tamkang University, Tamsui 25137 New Taipei City, Taiwan
- Research Center for X-Ray Science, Tamkang University, Tamsui 25137, New Taipei City, Taiwan
| | - Ting-Shan Chan
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Carlos Escudero
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290 Cerdanyola del Vallès, Spain
| | - Patricia Concepción
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Avelino Corma
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
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Lee H, Kim Y, Yu A, Jin D, Jo A, Lee Y, Kim MH, Lee C. An Efficient Electrochemical Sensor Driven by Hierarchical Hetero-Nanostructures Consisting of RuO 2 Nanorods on WO 3 Nanofibers for Detecting Biologically Relevant Molecules. SENSORS 2019; 19:s19153295. [PMID: 31357512 PMCID: PMC6696473 DOI: 10.3390/s19153295] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/17/2019] [Accepted: 07/23/2019] [Indexed: 11/16/2022]
Abstract
By means of electrospinning with the thermal annealing process, we investigate a highly efficient sensing platform driven by a hierarchical hetero-nanostructure for the sensitive detection of biologically relevant molecules, consisting of single crystalline ruthenium dioxide nanorods (RuO2 NRs) directly grown on the surface of electrospun tungsten trioxide nanofibers (WO3 NFs). Electrochemical measurements reveal the enhanced electron transfer kinetics at the prepared RuO2 NRs-WO3 NFs hetero-nanostructures due to the incorporation of conductive RuO2 NRs nanostructures with a high surface area, resulting in improved relevant electrochemical sensing performances for detecting H2O2 and L-ascorbic acid with high sensitivity.
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Affiliation(s)
- Hyerim Lee
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Yeomin Kim
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Areum Yu
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Dasol Jin
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Ara Jo
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea
| | - Youngmi Lee
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea.
| | - Myung Hwa Kim
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea.
| | - Chongmok Lee
- Department of Chemistry & Nanoscience, Ewha Womans University, Seoul 03760, Korea.
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Gomez-Bolivar J, Mikheenko IP, Orozco RL, Sharma S, Banerjee D, Walker M, Hand RA, Merroun ML, Macaskie LE. Synthesis of Pd/Ru Bimetallic Nanoparticles by Escherichia coli and Potential as a Catalyst for Upgrading 5-Hydroxymethyl Furfural Into Liquid Fuel Precursors. Front Microbiol 2019; 10:1276. [PMID: 31281292 PMCID: PMC6595500 DOI: 10.3389/fmicb.2019.01276] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 05/22/2019] [Indexed: 11/13/2022] Open
Abstract
Escherichia coli cells support the nucleation and growth of ruthenium and ruthenium-palladium nanoparticles (Bio-Ru and Bio-Pd/Ru NPs). We report a method for the synthesis of these monometallic and bimetallic NPs and their application in the catalytic upgrading of 5-hydroxymethyl furfural (5-HMF) to 2,5 dimethylfuran (DMF). Examination using high resolution transmission electron microscopy with energy dispersive X-ray microanalysis (EDX) and high angle annular dark field (HAADF) showed Ru NPs located mainly at the cell surface using Ru(III) alone but small intracellular Ru-NPs (size ∼1-2 nm) were visible only in cells that had been pre-"seeded" with Pd(0) (5 wt%) and loaded with equimolar Ru. Pd(0) NPs were distributed between the cytoplasm and cell surface. Cells bearing 5% Pd/5% Ru showed some co-localization of Pd and Ru but chance associations were not ruled out. Cells loaded to 5 wt% Pd/20 wt% Ru showed evidence of core-shell structures (Ru core, Pd shell). Examination of this cell surface material using X-ray photoelectron spectroscopy (XPS) showed Pd(0) and Pd(II) and Ru(IV) and Ru(III), with confirmation by analysis of bulk material using X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) analyses. Both Bio-Ru NPs and Bio-Pd/Ru NPs were active in the conversion of 5-HMF into 2,5-DMF but commercial Ru on carbon catalyst outperformed 5 wt% bio-Ru by fourfold. While 5 wt% Pd/20 wt% Ru achieved 20% yield of DMF the performance of the 5 wt% Pd/5 wt% Ru bio-catalyst was higher and comparable to the commercial 5 wt% Ru/C catalyst in a test reaction using commercial 5-HMF (>50% selectivity). 5-HMF was prepared by thermochemical hydrolysis of starch and cellulose with solvent extraction of 5-HMF into methyltetrahydrofuran (MTHF). Here, with MTHF as the reaction solvent the commercial Ru/C catalyst had little activity (100% conversion, negligible selectivity to DMF) whereas the 5 wt% Pd/5 wt% Ru bio-bimetallic gave 100% conversion and 14% selectivity to DMF from material extracted from hydrolyzates. The results indicate a potential green method for realizing increased energy potential from biomass wastes as well as showing a bio-based pathway to manufacturing a scarcely described bimetallic material.
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Affiliation(s)
- Jaime Gomez-Bolivar
- Department of Microbiology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Iryna P Mikheenko
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom
| | - Rafael L Orozco
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom
| | - Surbhi Sharma
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom
| | - Dipanjan Banerjee
- Dutch-Belgian Beamline, European Synchrotron Radiation Facility, Grenoble, France.,Department of Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Marc Walker
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - Rachel A Hand
- Department of Chemistry, University of Warwick, Coventry, United Kingdom
| | - Mohamed L Merroun
- Department of Microbiology, Faculty of Sciences, University of Granada, Granada, Spain
| | - Lynne E Macaskie
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom
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Li JM, Hu CC, Wu TH, Hsu YJ. Electroless deposition of RuO2-based nanoparticles for energy conversion applications. RSC Adv 2019; 9:4239-4245. [PMID: 35520188 PMCID: PMC9060561 DOI: 10.1039/c8ra07810f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 01/20/2019] [Indexed: 11/21/2022] Open
Abstract
The core/shell VOx·mH2O/RuO2·nH2O, synthesized by simply immersing VOx·mH2O into RuCl3 solution, shows a better catalytic activity of ORR than RuO2·nH2O.
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Affiliation(s)
- Jing-Mei Li
- Department of Chemical Engineering
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
- Department of Materials Science and Engineering
| | - Chi-Chang Hu
- Department of Chemical Engineering
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Tzu-Ho Wu
- Department of Chemical Engineering
- National Tsing Hua University
- Hsinchu 30013
- Taiwan
| | - Yung-Jung Hsu
- Department of Materials Science and Engineering
- National Chiao Tung University
- Hsinchu 30010
- Taiwan
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Lee Y, Oh SM, Park B, Ye BU, Lee NS, Baik JM, Hwang SJ, Kim MH. Unidirectional growth of single crystalline β-Na0.33V2O5and α-V2O5nanowires driven by controlling the pH of aqueous solution and their electrochemical performances for Na-ion batteries. CrystEngComm 2017. [DOI: 10.1039/c7ce00781g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Single crystalline β-Na0.33V2O5and α-V2O5nanowires were prepared with pH controlled precursors.
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Affiliation(s)
- Yejung Lee
- Department of Chemistry & Nanoscience
- Ewha Womans University
- Seoul
- Korea
| | - Seung Mi Oh
- Department of Chemistry & Nanoscience
- Ewha Womans University
- Seoul
- Korea
| | - Boyeon Park
- Department of Chemistry & Nanoscience
- Ewha Womans University
- Seoul
- Korea
| | - Byeong Uk Ye
- School of Mechanical and Advanced Materials Engineering
- KIST-UNIST-Ulsan Center for Convergent Materials
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan
- Korea
| | - Nam-Suk Lee
- National Institute for Nanomaterials Technology (NINT)
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Korea
| | - Jeong Min Baik
- School of Mechanical and Advanced Materials Engineering
- KIST-UNIST-Ulsan Center for Convergent Materials
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan
- Korea
| | - Seong-Ju Hwang
- Department of Chemistry & Nanoscience
- Ewha Womans University
- Seoul
- Korea
| | - Myung Hwa Kim
- Department of Chemistry & Nanoscience
- Ewha Womans University
- Seoul
- Korea
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Wen Z, Yeh MH, Guo H, Wang J, Zi Y, Xu W, Deng J, Zhu L, Wang X, Hu C, Zhu L, Sun X, Wang ZL. Self-powered textile for wearable electronics by hybridizing fiber-shaped nanogenerators, solar cells, and supercapacitors. SCIENCE ADVANCES 2016; 2:e1600097. [PMID: 27819039 PMCID: PMC5091355 DOI: 10.1126/sciadv.1600097] [Citation(s) in RCA: 254] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 09/26/2016] [Indexed: 05/17/2023]
Abstract
Wearable electronics fabricated on lightweight and flexible substrate are believed to have great potential for portable devices, but their applications are limited by the life span of their batteries. We propose a hybridized self-charging power textile system with the aim of simultaneously collecting outdoor sunshine and random body motion energies and then storing them in an energy storage unit. Both of the harvested energies can be easily converted into electricity by using fiber-shaped dye-sensitized solar cells (for solar energy) and fiber-shaped triboelectric nanogenerators (for random body motion energy) and then further stored as chemical energy in fiber-shaped supercapacitors. Because of the all-fiber-shaped structure of the entire system, our proposed hybridized self-charging textile system can be easily woven into electronic textiles to fabricate smart clothes to sustainably operate mobile or wearable electronics.
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Affiliation(s)
- Zhen Wen
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou 310027, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Soochow University, Suzhou, Jiangsu 215123, China
| | - Min-Hsin Yeh
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Hengyu Guo
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
- Department of Applied Physics, Chongqing University, Chongqing 400044, China
| | - Jie Wang
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
| | - Yunlong Zi
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
| | - Weidong Xu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jianan Deng
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
| | - Lei Zhu
- School of Material Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Xin Wang
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
| | - Chenguo Hu
- Department of Applied Physics, Chongqing University, Chongqing 400044, China
| | - Liping Zhu
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou 310027, China
| | - Xuhui Sun
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials, Soochow University, Suzhou, Jiangsu 215123, China
| | - Zhong Lin Wang
- School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332–0245, USA
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences; National Center for Nanoscience and Technology, Beijing 100083, China
- Corresponding author.
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