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Bera K, Chowdhury A, Bera SK, Das MR, Roy A, Das S, Bhattacharya SK. Pd Nanoparticle-Decorated Novel Ternary Bi 2O 2CO 3-Bi 2MoO 6-CuO Heterojunction for Enhanced Photo-electrocatalytic Ethanol Oxidation. ACS OMEGA 2023; 8:28419-28435. [PMID: 37576621 PMCID: PMC10413847 DOI: 10.1021/acsomega.3c02669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/12/2023] [Indexed: 08/15/2023]
Abstract
Recently, photo-electrooxidation of fuel using a noble metal-semiconductor junction has been one of the most promising approaches in fuel cell systems. Herein, we report the development of a Pd-supported Bi2MoO6-Bi2O2CO3-CuO novel ternary heterojunction for ethanol oxidation in alkali in the presence and absence of visible light. Various spectroscopic and microscopic characterization techniques confirm strong coupling between palladium nanoparticles and Bi2MoO6-Bi2O2CO3-CuO ternary heterojunction supports. The photo-electrocatalytic efficacy of the synthesized catalysts was inspected by cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS). The CV study reveals that the forward peak current density (in mA mg-1 of Pd) of the synthesized quaternary heterojunction was about 1482.5, which is 2.4, 4, and 4.6 times higher than that of Pd/CuO (608.3), Pd/Bi2MoO6-Bi2O2CO3 (368.3), and similarly synthesized Pd catalyst (321.5) under visible light radiation. The best heterojunction catalyst shows 2.21-fold higher peak current density in visible light compared to that in dark. CA study reveals that after operation for 6000 s, the current density of the quaternary electrode is 1.5 and 3.4 times greater than that of Pd/CuO and Pd/C catalysts, respectively. The greater photocurrent response, lower photoluminescence (PL) emission intensity, and smaller semicircle arc in the Nyquist plot of the quaternary catalyst demonstrate the efficient segregation and higher charge transfer conductance of photogenerated charges to facilitate the photo-electrooxidation process of ethanol. The stability test shows that the quaternary catalyst loses only 9.8 and 7.7% of its maximum current density after 500 cycles of CV operation in the dark and light, respectively, indicating that light energy is more beneficial in establishing high stability. The dramatic enhancement of the photo-electrocatalytic activity of the quaternary electrode is owing to the lower band gap, high ECSA, enhanced charge separation of photogenerated carriers (e--h+), and all cocatalytic support of Bi2MoO6, Bi2O2CO3, and CuO in Pd/ Bi2MoO6-Bi2O2CO3-CuO under visible light radiation. The morphology and structure of the used quaternary catalyst are tested using FESEM and PXRD. Finally, ex situ FTIR spectroscopy and HPLC techniques help understand the ethanol electrooxidation reaction mechanism.
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Affiliation(s)
- Kamal
Kanti Bera
- Physical
Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Anupam Chowdhury
- Physical
Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata 700032, India
| | - Shyamal Kanti Bera
- School
of Chemical Science, National Institute
of Science Education and Research (NISER), Bhubaneswar 752050, India
| | - Mahima Ranjan Das
- Department
of Physics, The University of Burdwan, Burdwan 713104, India
| | - Atanu Roy
- Department
of Instrumentation Science, Jadavpur University, Kolkata 700032, India
| | - Sachindranath Das
- Department
of Instrumentation Science, Jadavpur University, Kolkata 700032, India
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Kanti Bera K, Chakraborty M, Kanti Bera S, Mandal M, Chatterjee S, Kumar Bhattacharya S. Synthesis of Different Pt‐ZnO Binary Composites for Synergistic Photo‐Electrocatalytic Oxidation of Methanol in Alkali. ChemistrySelect 2021. [DOI: 10.1002/slct.202100562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kamal Kanti Bera
- Physical Chemistry Section Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Malay Chakraborty
- Physical Chemistry Section Department of Chemistry, Jadavpur University Kolkata 700032 India
| | - Shyamal Kanti Bera
- School of Chemical Science National Institute of Science Education and Research (NISER) Bhubaneswar 752050 India
| | - Manas Mandal
- Physical Chemistry Section Department of Chemistry, Jadavpur University Kolkata 700032 India
- Department of Chemistry Sree Chaitanya College, Habra, North 24 Parganas West Bengal 743268 India
| | - Sujit Chatterjee
- Physical Chemistry Section Department of Chemistry, Jadavpur University Kolkata 700032 India
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Li Y, Tang L, Deng D, He H, Yan X, Wang J, Luo L. Hetero-structured MnO-Mn 3O 4@rGO composites: Synthesis and nonenzymatic detection of H 2O 2. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111443. [PMID: 33255035 DOI: 10.1016/j.msec.2020.111443] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 08/10/2020] [Accepted: 08/20/2020] [Indexed: 01/14/2023]
Abstract
The construction of metal-oxide heterojunction architecture has greatly widened applications in the fields of optoelectronics, energy conversions and electrochemical sensors. In this study, olive-like hetero-structured MnO-Mn3O4 microparticles wrapped by reduced graphene oxide (MnO-Mn3O4@rGO) were synthesized through a facile solvothermal-calcination treatment. The morphology and structure of MnO-Mn3O4@rGO were characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and X-ray diffraction. The as-synthesized MnO-Mn3O4@rGO exhibited prominent catalyzing effect on the electroreduction of H2O2, due to the combination of good electrical conductivity of rGO and the synergistic effect of MnO and Mn3O4. The MnO-Mn3O4@rGO modified glassy carbon electrode provided a wide linear response from 0.004 to 17 mM, a low detection limit of 0.1 μM, and high sensitivity of 274.15 μA mM-1 cm-2. The proposed sensor displayed noticeable selectivity and long-term stability. In addition, the biosensor has been successfully applied for detecting H2O2 in tomato sauce with good recovery, revealing its promising potential applications for practical electrochemical sensors.
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Affiliation(s)
- Yuanyuan Li
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China; College of Sciences, Shanghai University, Shanghai 200444, PR China
| | - Li Tang
- College of Sciences, Shanghai University, Shanghai 200444, PR China
| | - Dongmei Deng
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
| | - Haibo He
- College of Sciences, Shanghai University, Shanghai 200444, PR China
| | - Xiaoxia Yan
- College of Sciences, Shanghai University, Shanghai 200444, PR China
| | - Jinhua Wang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, PR China.
| | - Liqiang Luo
- College of Sciences, Shanghai University, Shanghai 200444, PR China.
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Andrade KN, Arízaga GC, Bautista E, Rodríguez-González V. Dysprosium doped double layered hydroxide as an efficient catalyst for photooxidation of pharmaceutical pollutants. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.08.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Koutavarapu R, Babu B, Reddy CV, Reddy IN, Reddy KR, Rao MC, Aminabhavi TM, Cho M, Kim D, Shim J. ZnO nanosheets-decorated Bi 2WO 6 nanolayers as efficient photocatalysts for the removal of toxic environmental pollutants and photoelectrochemical solar water oxidation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 265:110504. [PMID: 32275239 DOI: 10.1016/j.jenvman.2020.110504] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 03/25/2020] [Accepted: 03/25/2020] [Indexed: 06/11/2023]
Abstract
Herein we report the fabrication of novel Bi2WO6/ZnO heterostructured hybrids for organic contaminant degradation from wastewater and photoelectrochemical (PEC) water splitting upon solar illumination. The Bi2WO6/ZnO photocatalysts were synthesized using a simple and eco-friendly hydrothermal process without the support of any surfactants. From the photocatalytic experiments, heterostructured Bi2WO6/ZnO nanohybrid catalysts exhibited considerably better photocatalytic performance for rhodamine B (RhB) degradation under solar illumination. The BWZ-20 nanocomposite demonstrated superior photodegradation of RhB dye up to 99% in about 50 min. Furthermore, BWZ-20 photoelectrode showeda lower charge-transfer resistance than other samples prepared, suggesting its suitability for PEC water splitting. The photocurrent densities of Bi2WO6/ZnO photoelectrodes were evaluated under the solar irradiation. The BWZ-20 photoelectrode exhibited a significant photocurrent density (0.45 × 10-3A/cm2) at +0.3 V vs. Ag/AgCl, which was~1036-times higher than that of pure Bi2WO6, and ~4.8-times greater than the pure ZnO. Such improved photocatalytic and PEC activities are mainly attributed to the formation of an interface between ZnO and Bi2WO6, superior light absorption ability, low charge-transfer resistance, remarkable production of charge carriers, easy migration of charges, and suppression of the recombination of photogenerated charge carriers.
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Affiliation(s)
| | - Bathula Babu
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea
| | - Ch Venkata Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
| | - I Neelakanta Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - M C Rao
- Department of Physics, Andhra Loyola College, Vijayawada, 520 008, Andhra Pradesh, India
| | - Tejraj M Aminabhavi
- Department of Pharmaceutics, SETs' College of Pharmacy, Dharwad, 580 007, Karnataka, India.
| | - Migyung Cho
- School of Information Engineering, Tongmyong University, Busan, 608-711, Republic of Korea
| | - Dongseob Kim
- Aircraft System Technology Group, Korea Institute of Industrial Technology, Gyeongbuk-do, 38822, Republic of Korea
| | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea.
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Nie M, Sun H, Gao Z, Li Q, Xue Z, Luo J, Liao J. Co–Ni nanowires supported on porous alumina as an electrocatalyst for the hydrogen evolution reaction. Electrochem commun 2020. [DOI: 10.1016/j.elecom.2020.106719] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Zhang J, Lu S, Xiang Y, Jiang SP. Intrinsic Effect of Carbon Supports on the Activity and Stability of Precious Metal Based Catalysts for Electrocatalytic Alcohol Oxidation in Fuel Cells: A Review. CHEMSUSCHEM 2020; 13:2484-2502. [PMID: 32068972 DOI: 10.1002/cssc.202000048] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/18/2020] [Indexed: 06/10/2023]
Abstract
Electrocatalyst supports, in particular carbonaceous materials, play critical roles in the electrocatalytic activity and stability of precious metal group (PMG)-based catalysts such as Pt, Pd, and Au for the electrochemical alcohol oxidation reaction (AOR) of fuels such as methanol and ethanol in polymer electrolyte membrane fuel cells (PEMFCs). Carbonaceous supports such as high surface area carbon provide electronic contact throughout the catalyst layer, isolate PMG nanoparticles (NPs) to maintain high electrochemical surface area, and provide hydrophobic properties to avoid flooding of the catalyst layer by liquid water produced. Compared to high surface area carbon, PMG catalysts supported on 1D and 2D carbon materials such as graphene and carbon nanotubes show enhanced activity and durability due to the intrinsic effect of the underlying carbonaceous supports on the electronic states of PMG NPs. The modification of the electronic environment, in particular the d-band centers of PMG NPs, weakens the adsorption of AOR intermediates, facilitates breaking of the C-C bonds, and thus enhances the electrocatalytic activity of PMG catalysts. The doping of heteroatoms further facilitates the electrocatalytic activity for the AOR through the structural, bifunctional, and electronic effects, in addition to the enhanced dispersion of PMG NPs in the carbon support. The prospects for the development of effective PMG-based catalysts for high-performance alcohol-fuel-based PEMFCs is discussed.
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Affiliation(s)
- Jin Zhang
- Beijing Key Laboratory of Bio-inspired Energy Materials and Devices & School of Space and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Shanfu Lu
- Beijing Key Laboratory of Bio-inspired Energy Materials and Devices & School of Space and Environment, Beihang University, Beijing, 100191, P. R. China
| | - Yan Xiang
- Beijing Key Laboratory of Bio-inspired Energy Materials and Devices & School of Space and Environment, Beihang University, Beijing, 100191, P. R. China
| | - San Ping Jiang
- Fuels and Energy Technology Institute and WA School of Mines: Minerals, Energy & Chemical Engineering, Curtin University, Perth, WA, 6102, Australia
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Tan Y, Zhang Y, Wang X, Zeng L, Luo F, Liu A. Amorphous nickel coating on carbon nanotubes supported Pt nanoparticles as a highly durable and active electrocatalyst for methanol oxidation reaction. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113739] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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