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Pellenz L, de Oliveira CRS, da Silva Júnior AH, da Silva LJS, da Silva L, Ulson de Souza AA, de Souza SMDAGU, Borba FH, da Silva A. A comprehensive guide for characterization of adsorbent materials. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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2
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Highly active rGO/Ca-MOF loaded Pd-M (M=Fe, Sb, Pb, Sn, Ag) composite catalysts towards ethylene glycol electrooxidation. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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3
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Torres-Ferrer LR, López-Romero JM, Mendez-Nonell J, Rivas-Arreola MJ, Moreno-Ríos M, Ávila-Dávila EO, Prokhorov E, Kovalenko Y, Zárate-Triviño DG, Revilla-Vazquez JR, Meraz-Rios MA, Luna-Barcenas G. Tuning HAuCl4/Sodium Citrate Stoichiometry to Fabricate Chitosan-Au Nanocomposites. Polymers (Basel) 2022; 14:polym14040788. [PMID: 35215700 PMCID: PMC8879739 DOI: 10.3390/polym14040788] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/20/2022] [Accepted: 01/28/2022] [Indexed: 02/07/2023] Open
Abstract
Nanocomposite engineering of biosensors, biomaterials, and flexible electronics demand a highly tunable synthesis of precursor materials to achieve enhanced or desired properties. However, this process remains limited due to the need for proper synthesis-property strategies. Herein, we report on the ability to synthesize chitosan-gold nanocomposite thin films (CS/AuNP) with tunable properties by chemically reducing HAuCl4 in chitosan solutions and different HAuCl4/sodium citrate molar relationships. The structure, electrical, and relaxation properties of nanocomposites have been investigated as a function of HAuCl4/sodium citrate molar relation. It was shown that gold particle size, conductivity, Vogel temperature (glass transition), and water content strongly depend upon HAuCl4/sodium citrate relationships. Two relaxation processes have been observed in nanocomposites; the α-relaxation process, related to a glass transition in wet CS/AuNP films, and the σ-relaxation related to the local diffusion process of ions in a disordered system. The ability to fine-tune both α- and σ-relaxations may be exploited in the proper design of functional materials for biosensors, biomaterials, and flexible electronics applications.
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Affiliation(s)
- Luis R. Torres-Ferrer
- Nanosciences & Nanotechnology Program, Cinvestav Zacatenco, Ciudad de Mexico 07360, Mexico;
| | | | | | - Maria J. Rivas-Arreola
- Department of Sciences & Engineering, Universidad Iberoamericana, San Andrés Cholula 72820, Mexico;
| | - Marisa Moreno-Ríos
- Department of Postgraduates Studies and Investigation, Tecnologico Nacional de Mexico, Instituto Tecnológico de Pachuca, Pachuca 42080, Mexico; (M.M.-R.); (E.O.Á.-D.)
| | - Erika O. Ávila-Dávila
- Department of Postgraduates Studies and Investigation, Tecnologico Nacional de Mexico, Instituto Tecnológico de Pachuca, Pachuca 42080, Mexico; (M.M.-R.); (E.O.Á.-D.)
| | - Evgeny Prokhorov
- Cinvestav Querétaro, Querétaro 76230, Mexico; (J.M.L.-R.); (E.P.); (Y.K.)
| | - Yuriy Kovalenko
- Cinvestav Querétaro, Querétaro 76230, Mexico; (J.M.L.-R.); (E.P.); (Y.K.)
| | - Diana G. Zárate-Triviño
- Immunology and virology Laboratory, Universidad Autónoma de Nuevo León, Monterrey 64450, Mexico
- Correspondence: (D.G.Z.-T.); (J.R.R.-V.); (M.A.M.-R.); (G.L.-B.)
| | - Javier R. Revilla-Vazquez
- Department of Engineering & Technology, Division of Chemical Sciences, FES-Cuautitlan, Universidad Nacional Autónoma de Mexico, Cuatitlan Izcalli 54740, Mexico
- Correspondence: (D.G.Z.-T.); (J.R.R.-V.); (M.A.M.-R.); (G.L.-B.)
| | - Marco A. Meraz-Rios
- Department of Molecular Biomedicine, Cinvestav Zacatenco, Ciudad de Mexico 07360, Mexico
- Correspondence: (D.G.Z.-T.); (J.R.R.-V.); (M.A.M.-R.); (G.L.-B.)
| | - Gabriel Luna-Barcenas
- Cinvestav Querétaro, Querétaro 76230, Mexico; (J.M.L.-R.); (E.P.); (Y.K.)
- Correspondence: (D.G.Z.-T.); (J.R.R.-V.); (M.A.M.-R.); (G.L.-B.)
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Zhang C, Li W, Liu C, Zhang C, Cao L, Kong D, Wang W, Chen S. Effect of covalent organic framework modified graphene oxide on anticorrosion and self-healing properties of epoxy resin coatings. J Colloid Interface Sci 2022; 608:1025-1039. [PMID: 34785451 DOI: 10.1016/j.jcis.2021.10.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/04/2021] [Accepted: 10/05/2021] [Indexed: 02/06/2023]
Abstract
Graphene oxide (GO) can enhance the corrosion resistance of epoxy coating, but there are problems such as poor filler dispersion and mechanical damage that will reduce the coating corrosion resistance. To resolve these problems, here, we used a facile and green liquid-phase synthetic strategy to grow covalent organic framework (COF) on GO sheets with 1,3,5-Triformylphloroglucinol and p-phenylenediamine as monomers for the COF synthesis. The COF could not only improve the compatibility of GO with epoxy coating, but also act as a nanocontainer for loading corrosion inhibitors. Electrochemical impedance spectroscopy showed that the low-frequency impedance of GO/COF-2% coating immersed in 3.5 wt% NaCl solution for 60 days was 8.58 × 108 Ω cm2. This was one order of magnitude higher than that of GO-2%, showing excellent corrosion resistance. Then, corrosion inhibitor of benzotriazole (BTA) was loaded into GO/COF, where the adsorption and release of BTA was controlled by environmental pH values. Results proved that the GO/COF@BTA-2% reinforced epoxy coating had superior corrosion resistance as well as self-healing ability because of the good compatibility, greater crosslinking density and controllable release of BTA.
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Affiliation(s)
- Chenyang Zhang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Wen Li
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Cong Liu
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Chunfeng Zhang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Lin Cao
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Debao Kong
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Wei Wang
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China
| | - Shougang Chen
- School of Materials Science and Engineering, Ocean University of China, Qingdao 266100 PR China.
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Shaheen A, Maswal M, Dar AA. Synergistic effect of various metal ions on the mechanical, thixotropic, self-healing, swelling and water retention properties of bimetallic hydrogels of alginate. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Baruah K, Deb P. Electrochemically active site-rich nanocomposites of two-dimensional materials as anode catalysts for direct oxidation fuel cells: new age beyond graphene. NANOSCALE ADVANCES 2021; 3:3681-3707. [PMID: 36133025 PMCID: PMC9418720 DOI: 10.1039/d1na00046b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 05/24/2021] [Indexed: 05/11/2023]
Abstract
Direct oxidation fuel cell (DOFC) has been opted as a green alternative to fossil fuels and intermittent energy resources as it is economically viable, possesses good conversion efficiency, as well as exhibits high power density and superfast charging. The anode catalyst is a vital component of DOFC, which improves the oxidation of fuels; however, the development of an efficient anode catalyst is still a challenge. In this regard, 2D materials have attracted attention as DOFC anode catalysts due to their fascinating electrochemical properties such as excellent mechanical properties, large surface area, superior electron transfer, presence of active sites, and tunable electronic states. This timely review encapsulates in detail different types of fuel cells, their mechanisms, and contemporary challenges; focuses on the anode catalyst/support based on new generation 2D materials, namely, 2D transition metal carbide/nitride or carbonitride (MXene), graphitic carbon nitride, transition metal dichalcogenides, and transition metal oxides; as well as their properties and role in DOFC along with the mechanisms involved.
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Affiliation(s)
- Kashmiri Baruah
- Department of Physics, Tezpur University (Central University) Napaam Tezpur 784028 Assam India
| | - Pritam Deb
- Department of Physics, Tezpur University (Central University) Napaam Tezpur 784028 Assam India
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Comparative studies of ethylene glycol electrooxidation by Pt and Pd nanoparticles supported on different conducting polymers – A DEMS study. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114624] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhu Z, Liu F, Fan J, Li Q, Min Y, Xu Q. C2 Alcohol Oxidation Boosted by Trimetallic PtPbBi Hexagonal Nanoplates. ACS APPLIED MATERIALS & INTERFACES 2020; 12:52731-52740. [PMID: 33169980 DOI: 10.1021/acsami.0c16215] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The exploration of ternary Pt-based catalysts represents a new trend for the application of electrocatalysts in fuel cells. In the present study, intermetallic PtPbBi hexagonal nanoplates (HNPs) with a hexagonal close-packed structure have been successfully synthesized via a facile solvothermal synthesis approach. The optimized PtPbBi HNPs exhibited excellent mass activity in the ethanol oxidation reaction (8870 mA mg-1Pt) in an alkaline ethanol solution, which is 12.7 times higher than that of JM Pt/C. Meanwhile, the mass activity of PtPbBi HNPs in an ethylene glycol solution (10,225 mA mg-1Pt) is 1.85 times higher than that of JM Pt/C. In particular, its catalytic activity is better than that of most reported Pt-based catalysts. In addition, the optimized PtPbBi HNPs also show a better operational durability than commercial Pt/C. For the ethylene glycol oxidation reaction, a mass activity of 42.7% was retained even after a chronoamperometric test for 3600 s, which is rare among the reported Pt-based catalysts. By combining X-ray photoelectron spectroscopy and electrochemical characterization, we reveal the electron transfer between Pt, Pb, and Bi; this would lead to weakened CO adsorption and enhanced OH adsorption, thereby promoting the removal of toxic intermediates and ensuring that PtPbBi HNP samples have high activity and excellent stability. This work can inspire the design and synthesis of Pt-based nanocatalysts.
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Affiliation(s)
- Zhiqiang Zhu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
| | - Feng Liu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
| | - Jinchen Fan
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Qiaoxia Li
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Yulin Min
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
| | - Qunjie Xu
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering Shanghai University of Electric Power, Yangpu District, 2588 Changyang Road, Shanghai 200090, China
- Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200090, China
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Nasrollahzadeh M, Sajjadi M, Dadashi J, Ghafuri H. Pd-based nanoparticles: Plant-assisted biosynthesis, characterization, mechanism, stability, catalytic and antimicrobial activities. Adv Colloid Interface Sci 2020; 276:102103. [PMID: 31978638 DOI: 10.1016/j.cis.2020.102103] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 12/09/2019] [Accepted: 01/06/2020] [Indexed: 12/18/2022]
Abstract
Among various metal nanoparticles, palladium nanoparticles (Pd NPs) are one of the most important and fascinating nanomaterials. An important concern about the preparation of Pd NPs is the formation of toxic by-products, dangerous wastes and harmful pollutants. The best solution to exclude and/or minimize these toxic substances is plant mediated biosynthesis of Pd NPs. Biogenic Pd-based NPs from plant extracts have been identified as valuable nanocatalysts in various catalytic reactions because of their excellent activities and selectivity. They have captured the attention of researchers owing to their economical, sustainable, green and eco-friendly nature. This review attempts to cover the recent progresses in the fabrication, characterization and broad applications of biogenic Pd NPs in environmental and catalytic systems. In addition, the stability of biosynthesized Pd NPs and mechanism of their formation are investigated.
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Ramakrishnan S, Karuppannan M, Vinothkannan M, Ramachandran K, Kwon OJ, Yoo DJ. Ultrafine Pt Nanoparticles Stabilized by MoS 2/N-Doped Reduced Graphene Oxide as a Durable Electrocatalyst for Alcohol Oxidation and Oxygen Reduction Reactions. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12504-12515. [PMID: 30848889 DOI: 10.1021/acsami.9b00192] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Direct alcohol fuel cells play a pivotal role in the synthesis of catalysts because of their low cost, high catalytic activity, and long durability in half-cell reactions, which include anode (alcohol oxidation) and cathode (oxygen reduction) reactions. However, platinum catalysts suffer from CO tolerance, which affects their stability. The present study focuses on ultrafine Pt nanoparticles stabilized by flowerlike MoS2/N-doped reduced graphene oxide (Pt@MoS2/NrGO) architecture, developed via a facile and cost-competitive approach that was performed through the hydrothermal method followed by the wet-reflux strategy. Fourier transform infrared spectra, X-ray diffraction patterns, Raman spectra, X-ray photoelectron spectra, field-emission scanning electron microscopy, and transmission electron microscopy verified the conversion to Pt@MoS2/NrGO. Pt@MoS2/NrGO was applied as a potential electrocatalyst toward the anode reaction (liquid fuel oxidation) and the cathode reaction (oxygen reduction). In the anode reaction, Pt@MoS2/NrGO showed superior activity toward electro-oxidation of methanol, ethylene glycol, and glycerol with mass activities of 448.0, 158.0, and 147.0 mA/mgPt, respectively, approximately 4.14, 2.82, and 3.34 times that of a commercial Pt-C (20%) catalyst. The durability of the Pt@MoS2/NrGO catalyst was tested via 500 potential cycles, demonstrating less than 20% of catalytic activity loss for alcohol fuels. In the cathode reaction, oxygen reduction reaction results showed excellent catalytic activity with higher half-wave potential at 0.895 V versus a reversible hydrogen electrode for Pt@MoS2/NrGO. The durability of the Pt@MoS2/NrGO catalyst was tested via 30 000 potential cycles and showed only 15 mV reduction in the half-wave potential, whereas the Pt@NrGO and Pt-C catalysts experienced a much greater shift (Pt@NrGO, ∼23 mV; Pt-C, ∼20 mV).
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Affiliation(s)
| | - Mohanraju Karuppannan
- Department of Energy and Chemical Engineering , Incheon National University , 119 Academy-ro , Yeonsu-Gu, Incheon 22012 , Republic of Korea
| | | | | | - Oh Joong Kwon
- Department of Energy and Chemical Engineering , Incheon National University , 119 Academy-ro , Yeonsu-Gu, Incheon 22012 , Republic of Korea
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Alam MS, Shabik MF, Rahman MM, del Valle M, Hasnat MA. Enhanced electrocatalytic effects of Pd particles immobilized on GC surface on the nitrite oxidation reactions. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.02.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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12
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Wang C, Zhang K, Xu H, Du Y, Goh MC. Anchoring gold nanoparticles on poly(3,4-ethylenedioxythiophene) (PEDOT) nanonet as three-dimensional electrocatalysts toward ethanol and 2-propanol oxidation. J Colloid Interface Sci 2019; 541:258-268. [DOI: 10.1016/j.jcis.2019.01.055] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 01/01/2019] [Accepted: 01/14/2019] [Indexed: 11/16/2022]
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13
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Amino acid-assisted preparation of reduced graphene oxide-supported PtCo bimetallic nanospheres for electrocatalytic oxidation of methanol. J APPL ELECTROCHEM 2019. [DOI: 10.1007/s10800-019-01297-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Xia S, Yang Y, Lü C. Quaternized POSS modified rGO-supported Pd nanoparticles as a highly efficient catalyst for reduction and Suzuki coupling reactions. NEW J CHEM 2019. [DOI: 10.1039/c9nj04491d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrophilic QPOSS modified rGO nanosheets are fabricated as a robust catalyst support of PdNPs for reduction and Suzuki coupling reactions.
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Affiliation(s)
- Siwen Xia
- College of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Yu Yang
- College of Chemistry
- Northeast Normal University
- Changchun
- China
| | - Changli Lü
- College of Chemistry
- Northeast Normal University
- Changchun
- China
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Yuan G, Wang L, Zhang X, Wang Q. Self-supported Pt nanoflakes-doped amorphous Ni(OH) 2 on Ni foam composite electrode for efficient and stable methanol oxidation. J Colloid Interface Sci 2018; 536:189-195. [PMID: 30366184 DOI: 10.1016/j.jcis.2018.10.049] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/11/2018] [Accepted: 10/17/2018] [Indexed: 11/19/2022]
Abstract
Direct methanol fuel cells (DMFCs) are promising power sources for automobiles and portable electronic devices. Its commercialization depends on the anodes with high activity, low Pt content, and especially high stability towards methanol oxidation. Herein, a self-supported Pt nanoflakes and amorphous Ni(OH)2 on nickel foam composite electrode (Pt-doped Ni(OH)2, Pt content: 1.5 wt%) with rich defects was fabricated via a facile and low cost galvanic deposition method. This composite anode exhibits enhanced activity and stability for methanol oxidation in alkaline media, which mainly come from the synergistic effects between Pt nanoflakes and amorphous Ni(OH)2 on Ni foam substrate and defect engineering. During a typical methanol oxidation process over Pt-doped Ni(OH)2: Pt nanoflakes act as the active sites; amorphous Ni(OH)2 promotes the poison removal; Ni foam provides high electric conductivity and large area; defects sites contribute to the enhanced activity and stability. This work suggests that this self-supported and defect-enriched Pt-doped Ni(OH)2 composite catalyst is an alternative to commercial Pt-based electrocatalyst for low temperature DMFCs.
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Affiliation(s)
- Gang Yuan
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, PR China; Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, PR China
| | - Li Wang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, PR China; Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, PR China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, PR China; Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, PR China
| | - Qingfa Wang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, 92 Weijin Road, Tianjin 300072, PR China; Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, PR China.
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