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Recent Developments of Methanol Electrooxidation Using Nickel‐based Nanocatalysts. ChemistrySelect 2022. [DOI: 10.1002/slct.202201807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2
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PANI-CNTs Microstructure with Interconnected NiO–NiOOH Particles as Selective Sensing Interface for Methanol Electrochemical Sensor. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02297-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Volovlikova O, Shilyaeva Y, Silakov G, Fedorova Y, Maniecki T, Gavrilov S. Tailoring porous/filament silicon using the two-step Au-assisted chemical etching of p-type silicon for forming an ethanol electro-oxidation layer. NANOTECHNOLOGY 2022; 33:235302. [PMID: 35289768 DOI: 10.1088/1361-6528/ac56f6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
In this paper, we are reporting on the fabrication of a porous silicon/Au and silicon filament/Au using the two-step Au-assisted chemical etching of p-type Si with a specific resistivity of 0.01, 1, and 12 Ω·cm when varying the Au deposition times. The structure analysis results show that with an increasing Au deposition time of up to 7 min, the thickness of the porous Si layer increases for the same etching duration (60 min), and the morphology of the layer changes from porous to filamentary. This paper shows that the uniform macro-porous layers with a thickness of 125.5-171.2μm and a specific surface area of the mesopore sidewalls of 142.5-182 m2·g-1are formed on the Si with a specific resistivity of 0.01 Ω·cm. The gradient macro-porous layers with a thickness of 220-260μm and 210-290μm, the specific surface area of the mesopore sidewalls of 3.7-21.7 m2·g-1and 17-29 m2·g-1are formed on the silicon with a specific resistivity of 1 and 12 Ω·cm, respectively. The por-Si/Au has excellent low-temperature electro oxidation performance with ethanol, the activity of ethanol oxidation is mainly due to the synergistic effect of the Au nanoparticles and porous Si. The formation mechanism of the uniform and gradient macro-porous layers and ethanol electro-oxidation on the porous/filament silicon, decorated with Au nanoparticles, was established. The por-Si/Au structures with perpendicularly oriented pores, a high por-Si layer thickness, and a low mono-Si layer thickness (with a specific resistivity of 1 Ω·cm) are optimal for an effective ethanol electro-oxidation, which has been confirmed with chronoamperometry measurements.
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Affiliation(s)
- Olga Volovlikova
- Institute of Advanced Materials and Technologies, National Research University of Electronic Technology (MIET), Moscow 124498, Russia
| | - Yulia Shilyaeva
- Institute of Advanced Materials and Technologies, National Research University of Electronic Technology (MIET), Moscow 124498, Russia
| | - Gennady Silakov
- Institute of Advanced Materials and Technologies, National Research University of Electronic Technology (MIET), Moscow 124498, Russia
| | - Yulia Fedorova
- Scientific-Manufacturing Complex 'Technological Centre', Moscow 124498, Russia
| | - Tomasz Maniecki
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Sergey Gavrilov
- Institute of Advanced Materials and Technologies, National Research University of Electronic Technology (MIET), Moscow 124498, Russia
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Rahman MM, Alam M, Asiri AM, Alfaifi SY, Marwani HM. Studies of methanol electro-oxidation with ternary wet-chemically prepared ZCSO hexagonal nanodiscs with electrochemical approach. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Rahman MM, Alam MM, Asiri AM. Highly sensitive sensor probe development with ZCCO nano-capsule composites for the selective detection of unsafe methanol chemical by electrochemical technique. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02354-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Ma P, Ma X. High-sensitivity and temperature-controlled switching methanol sensor prepared based on the dual catalysis of copper particles. Talanta 2022; 237:122888. [PMID: 34736708 DOI: 10.1016/j.talanta.2021.122888] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 11/25/2022]
Abstract
In this work, based on the dual catalytic properties of copper (Cu) particles for methanol oxidation and persulfate initiated radical polymerization, a temperature-controlled catalytic electrode, defined the PNIPAM-Cu@CP, was constructed by electrodepositing Cu particles on a carbon paper electrode and triggering the polymerization of the temperature-sensitive polymer N-isopropylacrylamide (PNIPAM) on the surface of the electrode, which is expected to be applicated in the micro-direct methanol fuel cell (DMAC) for detection of methanol crossover and also has temperature recognition and high-temperature self-protection functions. Cu particles and PNIPAM were characterized by X-ray diffraction (XRD), fourier-transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) for their specific structure and morphology. The cyclic voltammetry (CV) results showed the proposed electrode as a temperature-controlled switch-like methanol sensor, has a wide linear range (1-300 mM and 300-1200 mM), excellent sensitivity (72.8 μA cm-2 mM-1 and 11.5 μA cm-2 mM-1) and a low detection limit of 0.3 mM for methanol. In addition, the sensor also has excellent selectivity and temperature-triggered switchable electrocatalytic activity. The efficient and simple preparation method of the electrode is expected to be used in the development of a methanol sensor for real-time methanol detection in micro-DMAC.
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Affiliation(s)
- Pengcheng Ma
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, Northwestern Polytechnical University, Xi'an, 710129, PR China
| | - Xiaoyan Ma
- The Key Laboratory of Space Applied Physics and Chemistry, Ministry of Education, Northwestern Polytechnical University, Xi'an, 710129, PR China.
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Rahman MM, Ahmed J, Asiri AM, Alfaifi SY, Marwani HM. Development of Methanol Sensor Based on Sol-Gel Drop-Coating Co 3O 4·CdO·ZnO Nanoparticles Modified Gold-Coated µ-Chip by Electro-Oxidation Process. Gels 2021; 7:gels7040235. [PMID: 34940295 PMCID: PMC8701126 DOI: 10.3390/gels7040235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/17/2021] [Accepted: 11/23/2021] [Indexed: 12/20/2022] Open
Abstract
Herein, novel Co3O4·CdO·ZnO-based tri-metallic oxide nanoparticles (CCZ) were synthesized by a simple solution method in basic phase. We have used Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Field Emission Scanning Electron Microscope (FESEM), Dynamic Light Scattering (DLS), Tunneling Electron Microscopy (TEM), and Energy-Dispersive Spectroscopy (EDS) techniques to characterize the CCZ nanoparticles. XRD, TEM, DLS, and FESEM investigations have confirmed the tri-metallic nanoparticles’ structure, while XPS and EDS analyses have shown the elemental compositions of the CCZ nanoparticles. Later, a Au/μ-Chip was modified with the CCZ nanoparticles using a conducting binder, PEDOT: PSS (poly(3,4-ethylenedioxythiophene) polystyrene sulfonate) in a sol-gel system, and dried completely in air. Then, the CCZ/Au/μ-Chip sensor was used to detect methanol (MeOH) in phosphate buffer solution (PBS). Outstanding sensing performance was achieved for the CCZ/Au/μ-Chip sensor, such as excellent sensitivity (1.3842 µAµM−1cm−2), a wide linear dynamic range of 1.0 nM–2.0 mM (R2 = 0.9992), an ultra-low detection limit (32.8 ± 0.1 pM at S/N = 3), a fast response time (~11 s), and excellent reproducibility and repeatability. This CCZ/Au/μ-Chip sensor was further applied with appropriate quantification results in real environmental sample analyses.
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Affiliation(s)
- Mohammed M. Rahman
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.M.A.); (S.Y.M.A.); (H.M.M.)
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
- Correspondence: or ; Tel.: +966-59-642-1830; Fax: +966-12-695-2292
| | - Jahir Ahmed
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia;
| | - Abdullah M. Asiri
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.M.A.); (S.Y.M.A.); (H.M.M.)
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Sulaiman Y.M. Alfaifi
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.M.A.); (S.Y.M.A.); (H.M.M.)
| | - Hadi. M. Marwani
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.M.A.); (S.Y.M.A.); (H.M.M.)
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
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Nguyen NXA, Viet Hai L, Nguyen TKN, Pham TN, Nguyen TT, Huynh LTN, Pham VV, Nguyen TTT, Thai Hoang N, Dai Lam T. Efficient nickel or copper oxides decorated graphene-polyaniline interface for application in selective methanol sensing. RSC Adv 2021; 11:28573-28580. [PMID: 35478552 PMCID: PMC9038141 DOI: 10.1039/d1ra04164a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/26/2021] [Indexed: 11/21/2022] Open
Abstract
Graphene sheets decorated with nickel or copper oxides that were anchored on polyaniline (denoted as PANI-graphene/NiO and PANI-graphene/CuO) were prepared by a simple, easy to-control electrochemical method and applied as novel materials for sensitive and selective methanol sensing. The fabricated sensors exhibited good electrocatalytic activity, appropriate dynamic linear range (20-1300 mM), sensitivity (0.2-1.5 μA mM-1 cm-2) and excellent selectivity towards methanol. It should be highlighted from the selectivity tests that no significant interference was observed from ethanol and other alcohols. To our best knowledge, using inexpensive but efficient transition metals like Ni, Cu instead of Pt, Pd and their composites with PANI, graphene would be scientifically novel and practically feasible approach for sensor fabrication that could be potentially used to identify methanol adulteration in counterfeit alcoholic beverages.
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Affiliation(s)
- Nhat Xuan An Nguyen
- HCM City University of Science, Vietnam National University HCM City 227 Nguyen Van Cu HCM City Vietnam
| | - Le Viet Hai
- HCM City University of Science, Vietnam National University HCM City 227 Nguyen Van Cu HCM City Vietnam
| | - Thi Kim Ngan Nguyen
- HCM City University of Science, Vietnam National University HCM City 227 Nguyen Van Cu HCM City Vietnam
| | - Thi Nam Pham
- Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
| | - Thi Thom Nguyen
- Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
| | - Le Thanh Nguyen Huynh
- HCM City University of Science, Vietnam National University HCM City 227 Nguyen Van Cu HCM City Vietnam
| | - Van Viet Pham
- HCM City University of Science, Vietnam National University HCM City 227 Nguyen Van Cu HCM City Vietnam
| | - Thi Thu Trang Nguyen
- Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
| | - Nguyen Thai Hoang
- HCM City University of Science, Vietnam National University HCM City 227 Nguyen Van Cu HCM City Vietnam
| | - Tran Dai Lam
- Institute for Tropical Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam .,Graduate University of Science and Technology, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet Hanoi Vietnam
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Taha TH, Elnouby MS, Abu-Saied MA, Alamri S. The green exfoliation of graphite waste and its suitability for biosensor applications. RSC Adv 2020; 10:9347-9355. [PMID: 35497257 PMCID: PMC9050054 DOI: 10.1039/c9ra09602g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 01/05/2020] [Indexed: 11/21/2022] Open
Abstract
This work is concerned with the bio-exfoliation of graphite using a soil bacterium.
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Affiliation(s)
- Tarek H. Taha
- Environmental Biotechnology Department
- Genetic Engineering and Biotechnology Research Institute (GEBRI)
- City of Scientific Research and Technological Applications (SRTA-City)
- New Borg El-Arab City
- Egypt
| | - Mohamed S. Elnouby
- Composite and Nanostructured Materials Research Department
- Advanced Technology and New Materials Research Institute
- City of Scientific Research and Technological Applications (SRTA-City)
- New Borg El-Arab City
- Egypt
| | - M. A. Abu-Saied
- Polymer Materials Research Department
- Advanced Technology and New Materials Research Institute
- City of Scientific Research and Technological Applications (SRTA-City)
- New Borg El-Arab City
- Egypt
| | - Saad Alamri
- Department of Biology
- College of Science
- King Khalid University
- Abha
- Saudi Arabia
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10
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Wang C, Zheng L, Chang R, Du L, Zhu C, Geng D, Yang D. Palladium-Cobalt Nanowires Decorated with Jagged Appearance for Efficient Methanol Electro-oxidation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:29965-29971. [PMID: 30084629 DOI: 10.1021/acsami.8b06851] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Inexpensive, active, stable, and CO-tolerant nonplatinum catalysts for efficient methanol electro-oxidation are highly desirable to direct methanol fuel cell (DMFC) technology; however, it is still challenging. In this study, we report palladium and cobalt nanowires with jagged appearance (Pd-Co J-NWs), synthesized via first anodic-aluminum-oxide template-confined electrodeposition of Pd-Co regular nanowires, followed by a wet-chemical transformation. Benefiting from the "jagged" appearance and Co dopants, the mass and specific activities of Pd-Co J-NWs for methanol electro-oxidation are evaluated ∼3.2 times and ∼2.1 times as high as those of Pd/C catalysts, respectively. After chronoamperometric measurements for 2000 s, the catalytic stability of Pd-Co J-NWs is ∼5.4 times higher compared to that of commercial Pd/C. Moreover, the onset potential of CO-stripping of Pd-Co J-NWs (0.5 V) is lower than that of Pd/C (0.7 V), suggesting CO antipoisoning. Our approach to Pd-Co J-NWs catalysts provides an experimental guideline for designing other high-performance nonplatinum catalysts, which is promising for future DMFC industry.
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Affiliation(s)
- Chengwen Wang
- Department of Electronics, College of Electronic Information and Optical Engineering , Nankai University , Tianjin 300350 , China
| | - Lijun Zheng
- Department of Electronics, College of Electronic Information and Optical Engineering , Nankai University , Tianjin 300350 , China
| | - Rong Chang
- Department of Electronics, College of Electronic Information and Optical Engineering , Nankai University , Tianjin 300350 , China
| | - Lingling Du
- Department of Electronics, College of Electronic Information and Optical Engineering , Nankai University , Tianjin 300350 , China
| | - Chuhong Zhu
- Key Laboratory of Materials Physics, and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics , Chinese Academy of Sciences , Hefei 230031 , China
| | - Dongsheng Geng
- Center for Green Innovation, School of Mathematics and Physics , University of Science and Technology Beijing , Beijing 100083 , China
| | - Dachi Yang
- Department of Electronics, College of Electronic Information and Optical Engineering , Nankai University , Tianjin 300350 , China
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A highly sensitive electrochemical sensor for the determination of methanol based on PdNPs@SBA-15-PrEn modified electrode. Anal Biochem 2018; 548:32-37. [PMID: 29476709 DOI: 10.1016/j.ab.2018.01.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 01/26/2018] [Accepted: 01/30/2018] [Indexed: 01/06/2023]
Abstract
In this study, a novel electrochemical sensor for the determination of methanol based on palladium nanoparticles supported on Santa barbara amorphous-15- PrNHEtNH2 (PdNPs@SBA-15-PrEn) as nanocatalysis platform is presented. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and electrochemical methods are employed to characterize the PdNPs@SBA-15-PrEn nanocomposite. The Nafion-Pd@SBA-15-PrEn modified glassy carbon electrode (Nafion-PdNPs@SBA-15-PrEn/GCE) displayed the high electrochemical activity and excellent catalytic characteristic for electro-oxidation of methanol in an alkaline solution. The electro-oxidation performance of the proposed sensor was investigated using cyclic voltammetry (CV) and amperometry. The sensor exhibits a good sensitivity of 0.0905 Amol-1 Lcm-2, linear range of 20-1000 μM and the corresponding detection limit of 12 μM (3σ). The results demonstrate that the Nafion-PdNPs@SBA-15-PrEn/GCE has potential as an efficient and integrated sensor for methanol detection.
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Thungon PD, Kakoti A, Ngashangva L, Goswami P. Advances in developing rapid, reliable and portable detection systems for alcohol. Biosens Bioelectron 2017; 97:83-99. [PMID: 28577501 DOI: 10.1016/j.bios.2017.05.041] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/16/2017] [Accepted: 05/22/2017] [Indexed: 02/08/2023]
Abstract
Development of portable, reliable, sensitive, simple, and inexpensive detection system for alcohol has been an instinctive demand not only in traditional brewing, pharmaceutical, food and clinical industries but also in rapidly growing alcohol based fuel industries. Highly sensitive, selective, and reliable alcohol detections are currently amenable typically through the sophisticated instrument based analyses confined mostly to the state-of-art analytical laboratory facilities. With the growing demand of rapid and reliable alcohol detection systems, an all-round attempt has been made over the past decade encompassing various disciplines from basic and engineering sciences. Of late, the research for developing small-scale portable alcohol detection system has been accelerated with the advent of emerging miniaturization techniques, advanced materials and sensing platforms such as lab-on-chip, lab-on-CD, lab-on-paper etc. With these new inter-disciplinary approaches along with the support from the parallel knowledge growth on rapid detection systems being pursued for various targets, the progress on translating the proof-of-concepts to commercially viable and environment friendly portable alcohol detection systems is gaining pace. Here, we summarize the progress made over the years on the alcohol detection systems, with a focus on recent advancement towards developing portable, simple and efficient alcohol sensors.
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Affiliation(s)
- Phurpa Dema Thungon
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Ankana Kakoti
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Lightson Ngashangva
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Pranab Goswami
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
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Sensitive methanol sensor based on PMMA-G-CNTs nanocomposites deposited onto glassy carbon electrodes. Talanta 2016; 150:71-80. [DOI: 10.1016/j.talanta.2015.12.012] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 12/02/2015] [Accepted: 12/09/2015] [Indexed: 11/15/2022]
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14
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Chen A, Ostrom C. Palladium-Based Nanomaterials: Synthesis and Electrochemical Applications. Chem Rev 2015; 115:11999-2044. [DOI: 10.1021/acs.chemrev.5b00324] [Citation(s) in RCA: 533] [Impact Index Per Article: 59.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Aicheng Chen
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Cassandra Ostrom
- Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
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Immobilization of Ni-Pd/core-shell nanoparticles through thermal polymerization of acrylamide on glassy carbon electrode for highly stable and sensitive glutamate detection. Anal Chim Acta 2015; 896:137-42. [PMID: 26481997 DOI: 10.1016/j.aca.2015.09.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 09/02/2015] [Accepted: 09/03/2015] [Indexed: 12/28/2022]
Abstract
The preparation of a persistently stable and sensitive biosensor is highly important for practical applications. To improve the stability and sensitivity of glutamate sensors, an electrode modified with glutamate dehydrogenase (GDH)/Ni-Pd/core-shell nanoparticles was developed using the thermal polymerization of acrylamide (AM) to immobilize the synthesized Ni-Pd/core-shell nanoparticles onto a glassy carbon electrode (GCE). The modified electrode was characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Electrochemical data showed that the prepared biosensor had remarkably enhanced electrocatalytic activity toward glutamate. Moreover, superior reproducibility and excellent stability were observed (relative average deviation was 2.96% after continuous use of the same sensor for 60 times, and current responses remained at 94.85% of the initial value after 60 d). The sensor also demonstrated highly sensitive amperometric detection of glutamate with a low limit of detection (0.052 μM, S/N = 3), high sensitivity (4.768 μA μM(-1) cm(-2)), and a wide, useful linear range (0.1-500 μM). No interference from potential interfering species such as l-cysteine, ascorbic acid, and l-aspartate were noted. The determination of glutamate levels in actual samples achieved good recovery percentages.
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Mao H, Huang T, Yu A. Surface Palladium rich CuxPdy/carbon catalysts for methanol and ethanol oxidation in alkaline media. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.05.160] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Ahmad T, Wani IA, Al-Hartomy OA, Al-Shihri AS, Kalam A. Low temperature chemical synthesis and comparative studies of silver oxide nanoparticles. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.12.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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18
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Prathap MA, Satpati B, Srivastava R. Facile preparation of β-Ni(OH)2-NiCo2O4 hybrid nanostructure and its application in the electro-catalytic oxidation of methanol. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.03.043] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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García M, Batalla P, Escarpa A. Metallic and polymeric nanowires for electrochemical sensing and biosensing. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.01.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Rahman MM, Khan SB, Asiri AM. Smart methanol sensor based on silver oxide-doped zinc oxide nanoparticles deposited on microchips. Mikrochim Acta 2014. [DOI: 10.1007/s00604-014-1176-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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21
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NixPd1− (x= 0.98, 0.93, and 0.58) nanostructured catalysts for ammonia electrooxidation in alkaline media. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.06.148] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Schwartz IT, Jonke AP, Josowicz M, Janata J. Polyaniline Electrodes with Atomic Au n Pd1 Alloys: Oxidation of Methanol and Ethanol. Catal Letters 2013. [DOI: 10.1007/s10562-013-1029-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Nikiforova TG, Datskevich OA, Maleev VV. Palladium catalysts on porous nickel substrates for alcohol fuel cells. RUSS J APPL CHEM+ 2013. [DOI: 10.1134/s1070427212120130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Preparation and Electrocatalytic Characteristics Research of Pd/C Catalyst for Direct Ethanol Fuel Cell. J CHEM-NY 2013. [DOI: 10.1155/2013/250760] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two kinds of carbon-support 20% Pd/C catalysts for use in direct ethanol fuel cell (DEFC) have been prepared by an impregnation reduction method using NaBH4and NaH2PO2as reductants, respectively, in this study. The catalysts were characterized by XRD and TEM. The results show that the catalysts had been completely reduced, and the catalysts are spherical and homogeneously dispersed on carbon. The electrocatalytic activity of the catalysts was investigated by electrochemical measurements. The results indicate that the catalysts had an average particle size of 3.3 nm and showed the better catalytic performance, when NaBH4was used as the reducing agent. The electrochemical active surface area of Pd/C (NaBH4) was 56.4 m2·g−1. The electrochemical activity of the Pd/C (NaBH4) was much higher than that of Pd/C (NaH2PO2).
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Guo Z, Seol ML, Kim MS, Ahn JH, Choi YK, Liu JH, Huang XJ. Hollow CuO nanospheres uniformly anchored on porous Si nanowires: preparation and their potential use as electrochemical sensors. NANOSCALE 2012; 4:7525-7531. [PMID: 23099737 DOI: 10.1039/c2nr32556j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Hollow CuO nanospheres have been prepared via a reduction reaction of copper ions on porous Si nanowires combined with calcination in air and uniformly anchored on their surfaces. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) were employed to characterize and analyze as-synthesized samples. The results reveal that Si nanowires fabricated from heavily doped Si wafer are formed with a meso-porous structure by an Ag-assisted etching approach, and Cu nanoparticles are formed and uniformly decorated on the Si nanowires through a reaction of copper ions reduced by silicon. After annealing in air, Cu nanoparticles are in situ oxidized and transformed into CuO, leading to the formation of hollow nanospheres because of the Kirkendall effect. The diameter size of as-prepared CuO hollow spheres anchored on porous Si nanowires is mainly around 30 nm. Finally, in order to illuminate the advantages of this novel hybrid nanostructure of nanosized hollow spheres supported on porous nanowires, its electrochemical sensing performance to hydrazine as an example has been further investigated. The results confirm that it is a good potential application to detect hydrazine.
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Affiliation(s)
- Zheng Guo
- Department of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
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26
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A nano-structured Ni(II)–chelidamic acid modified gold nanoparticle self-assembled electrode for electrocatalytic oxidation and determination of methanol. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012; 32:1955-1962. [DOI: 10.1016/j.msec.2012.05.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Revised: 04/15/2012] [Accepted: 05/22/2012] [Indexed: 11/21/2022]
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27
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Highly sensitive methanol chemical sensor based on undoped silver oxide nanoparticles prepared by a solution method. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0817-2] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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28
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Affiliation(s)
- Danielle W. Kimmel
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, VU Station B 351822, Nashville, TN 37235-1822
| | - Gabriel LeBlanc
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, VU Station B 351822, Nashville, TN 37235-1822
| | - Mika E. Meschievitz
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, VU Station B 351822, Nashville, TN 37235-1822
| | - David E. Cliffel
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, VU Station B 351822, Nashville, TN 37235-1822
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Pan K, Ming H, Yu H, Huang H, Liu Y, Kang Z. Copper nanoparticles modified silicon nanowires with enhanced cross-coupling catalytic ability. Dalton Trans 2012; 41:2564-6. [DOI: 10.1039/c2dt12182d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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A class-selective and reliable electrochemical monosaccharide index in honeys, as determined using nickel and nickel-copper nanowires. Anal Bioanal Chem 2011; 402:945-53. [DOI: 10.1007/s00216-011-5453-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 09/09/2011] [Accepted: 09/26/2011] [Indexed: 11/27/2022]
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31
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The electrochemical reduction of PdCl42− and PdCl62− in polyaniline: Influence of Pd deposit morphology on methanol oxidation in alkaline solution. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.04.083] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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Huang HY, Chen PY. Voltammetric behavior of Pd(II) and Ni(II) ions and electrodeposition of PdNi bimetal in N-butyl-N-methylpyrrolidinium dicyanamide ionic liquid. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.11.042] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Disposable electrochemical detectors based on nickel nanowires for carbohydrate sensing. Biosens Bioelectron 2011; 26:2527-33. [DOI: 10.1016/j.bios.2010.10.049] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 10/13/2010] [Accepted: 10/27/2010] [Indexed: 11/22/2022]
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