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Ling C, Xu L, Ou L, Wu J, Tan C, Zhu L, Xiong X. NiCo-LDH coupled with 2D ZIF-derived Co nitrogen doped carbon nanosheet arrays as a self-supporting electrocatalyst for detection of formaldehyde. Chemistry 2024; 30:e202304024. [PMID: 38391394 DOI: 10.1002/chem.202304024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/29/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024]
Abstract
Formaldehyde is susceptible to illegal addition to foodstuffs to extend their shelf life due to its antimicrobial, preservative and bleaching properties. In this study, a self-supporting "nanosheet on nanosheet" arrays electrocatalyst with core-shell heterostructure was prepared in situ by coupling NiCo layer double hydroxide with 2D ZIF derived Co-nitrogen-doped porous carbon on carbon cloth (Co-N/C@NiCo-LDH NSAs/CC). Co-N/C nanosheet arrays act as a scaffold core with good electrical conductivity, providing more NiCo-LDH nucleation sites to avoid NiCo-LDH agglomeration, thus having fast mass/charge transfer performance. While the NiCo-LDH nanosheet arrays shell with high specific surface area provide more active sites for electrochemical reactions. As an electrocatalytic sensing electrode, Co-N/C@NiCo-LDH NSAs/CC has a wide linear range of 1 μM to 13 mM for formaldehyde detection, and the detection limit is 82 nM. Besides, the sensor has been applied to the detection of formaldehyde in food samples with satisfactory results.
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Affiliation(s)
- Chengshuang Ling
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu, 610068, China
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Li Xu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Lian Ou
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Jiaying Wu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Chao Tan
- Key Lab of Process Analysis and Control of Sichuan Universities, Yibin University, Yibin, 644000, China
| | - Liping Zhu
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu, 610068, China
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Xiaoli Xiong
- Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu, 610068, China
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
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2
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Habibi B, Pashazadeh A, Pashazadeh S, Saghatforoush LA. A new method for the preparation of MgAl layered double hydroxide-copper metal-organic frameworks structures: application to electrocatalytic oxidation of formaldehyde. Sci Rep 2024; 14:5222. [PMID: 38433243 PMCID: PMC10909854 DOI: 10.1038/s41598-024-55770-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 02/27/2024] [Indexed: 03/05/2024] Open
Abstract
In this research, we present a novel design protocol for the in-situ synthesis of MgAl layered double hydroxide-copper metal-organic frameworks (LDH-MOFs) nanocomposite based on the electrocoagulation process and chemical method. The overall goal in this project is the primary synthesis of para-phthalic acid (PTA) intercalated MgAl-LDH with Cu (II) ions to produce the paddle-wheel like Cu-(PTA) MOFs nanocrystals on/in the MgAl-LDH structure. The physicochemical properties of final product; Cu-(PTA) MOFs/MgAl-LDH, were characterized by the surface analysis and chemical identification methods (SEM, EDX, TEM, XRD, BET, FTIR, CHN, DLS, etc.). The Cu-(PTA) MOFs/MgAl-LDH nanocomposite was used to modification of the carbon paste electrode (CPE); Cu-(PTA) MOFs/MgAl-LDH/CPE. The electrochemical performance of Cu-(PTA) MOFs/MgAl-LDH/CPE was demonstrated through the utilization of electrochemical methods. The results show a stable redox behavior of the Cu (III)/Cu (II) at the surface of Cu-(PTA) MOFs/MgAl-LDH/CPE in alkaline medium (aqueous 0.1 M NaOH electrolyte). Then, the Cu-(PTA) MOFs/MgAl-LDH/CPE was used as a new electrocatalyst toward the oxidation of formaldehyde (FA). Electrochemical data show that the Cu-(PTA) MOFs/MgAl-LDH/CPE exhibits superior electrocatalytic performance on the oxidation of FA. Also the diffusion coefficient, exchange current density (J°) and mean value of catalytic rate constant (Kcat) were found to be 1.18 × 10-6 cm2 s-1, 23 mA cm-2 and 0.4537 × 104 cm3 mol-1 s-1, respectively. In general, it can be said the Cu-(PTA) MOFs/MgAl-LDHs is promising candidate for applications in direct formaldehyde fuel cells.
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Affiliation(s)
- Biuck Habibi
- Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran
| | - Ali Pashazadeh
- Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran.
| | - Sara Pashazadeh
- Electroanalytical Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, 53714-161, Iran
| | - Lotf Ali Saghatforoush
- Department of Chemistry, Payame Noor University, Tehran, 19395-4697, Islamic Republic of Iran
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3
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Yang Y, Hao Y, Huang L, Luo Y, Chen S, Xu M, Chen W. Recent Advances in Electrochemical Sensors for Formaldehyde. Molecules 2024; 29:327. [PMID: 38257238 PMCID: PMC11154431 DOI: 10.3390/molecules29020327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/06/2024] [Accepted: 01/06/2024] [Indexed: 01/24/2024] Open
Abstract
Formaldehyde, a ubiquitous indoor air pollutant, plays a significant role in various biological processes, posing both environmental and health challenges. This comprehensive review delves into the latest advancements in electrochemical methods for detecting formaldehyde, a compound of growing concern due to its widespread use and potential health hazards. This review underscores the inherent advantages of electrochemical techniques, such as high sensitivity, selectivity, and capability for real-time analysis, making them highly effective for formaldehyde monitoring. We explore the fundamental principles, mechanisms, and diverse methodologies employed in electrochemical formaldehyde detection, highlighting the role of innovative sensing materials and electrodes. Special attention is given to recent developments in nanotechnology and sensor design, which significantly enhance the sensitivity and selectivity of these detection systems. Moreover, this review identifies current challenges and discusses future research directions. Our aim is to encourage ongoing research and innovation in this field, ultimately leading to the development of advanced, practical solutions for formaldehyde detection in various environmental and biological contexts.
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Affiliation(s)
- Yufei Yang
- College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China; (Y.Y.); (Y.H.); (L.H.); (M.X.)
| | - Yuanqiang Hao
- College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China; (Y.Y.); (Y.H.); (L.H.); (M.X.)
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;
| | - Lijie Huang
- College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China; (Y.Y.); (Y.H.); (L.H.); (M.X.)
| | - Yuanjian Luo
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;
| | - Shu Chen
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China;
| | - Maotian Xu
- College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China; (Y.Y.); (Y.H.); (L.H.); (M.X.)
| | - Wansong Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410017, China
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4
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Soleh A, Saisahas K, Promsuwan K, Saichanapan J, Thavarungkul P, Kanatharana P, Meng L, Mak WC, Limbut W. A wireless smartphone-based "tap-and-detect" formaldehyde sensor with disposable nano-palladium grafted laser-induced graphene (nanoPd@LIG) electrodes. Talanta 2023; 254:124169. [PMID: 36549140 DOI: 10.1016/j.talanta.2022.124169] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022]
Abstract
We developed a fully integrated smart sensing device for on-site testing of food to detect trace formaldehyde (FA). A nano-palladium grafted laser-induced graphene (nanoPd@LIG) composite was synthesized by one-step laser irradiation of a Pd2+-chitosan-polyimide precursor. The composite was synthesized in the form of a three-electrode sensor on a polymer substrate. The electrochemical properties and morphology of the fabricated composite were characterized and the electrochemical kinetics of FA oxidation at the nanoPd@LIG electrode were investigated. The nanoPd@LIG electrode was combined with a smart electrochemical sensing (SES) device to determine FA electrochemically. The proposed SES device uses near field communication (NFC) to receive power and transfer data between a smartphone interface and a battery-free sensor. The proposed FA sensor exhibited a linear detection range from 0.01 to 4.0 mM, a limit of detection of 6.4 μM, good reproducibility (RSDs between 2.0 and 10.1%) and good anti-interference properties for FA detection. The proposed system was used to detect FA in real food samples and the results correlated well with the results from a commercial potentiostat and a spectrophotometric analysis.
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Affiliation(s)
- Asamee Soleh
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Kasrin Saisahas
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Kiattisak Promsuwan
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Jenjira Saichanapan
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Panote Thavarungkul
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Proespichaya Kanatharana
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand
| | - Lingyin Meng
- Biosensors and Bioelectronics Centre, Division of Sensor and Actuator Systems, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83, Linköping, Sweden
| | - Wing Cheung Mak
- Biosensors and Bioelectronics Centre, Division of Sensor and Actuator Systems, Department of Physics, Chemistry and Biology, Linköping University, SE-581 83, Linköping, Sweden; Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Warakorn Limbut
- Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand; Forensic Science Innovation and Service Center, Prince of Songkla University, Hat Yai, Songkhla, 90110, Thailand.
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Alharthi FA, Aldubeikl HK, Alanazi HS, Al-Nafaei WS, Hasan I. Fluorometric Sensing and Detection of p-Nitroaniline by Mixed Metal (Zn, Ni) Tungstate Nanocomposite. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:362. [PMID: 36678116 PMCID: PMC9863953 DOI: 10.3390/nano13020362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Aromatic amines are important chemical intermediates that hold an irreplaceable significance for synthesizing many chemical products. However, they may react with substances excreted from human bodies to generate blood poisoning, skin eczema, and dermatitis disease and even induce cancer-causing high risks to human health and the environment. Metal tungstates have been proven to be highly efficient materials for developing various toxic gases or chemical detection sensor systems. However, the major factors of the sensors, such as sensitivity, selectivity, stability, response, and recovery times, still need to be optimized for practical technological applications. In this work, Ni-doped ZnWO4 mixed metal tungstate nanocomposite material was synthesized by the hydrothermal method and explored as a sensor for the fluorometric determination of p-nitroaniline (p-NA). Transmission electron microscopy (TEM) was used for the elucidation of the optimized particle diameter. Scanning electron microscopy (SEM) was employed to observe the surface morphological changes in the material during the solid-state reactions. The vibration modes of as-prepared samples were analyzed using Fourier-transform infrared spectroscopy (FTIR). The chemical bonding and oxidation states of individual elements involved in material synthesis were observed using X-ray photoelectron spectroscopy (XPS). The PL activities of the metal tungstate nanoparticles were investigated for the sensing of p-nitroaniline (p-NA). The obtained results demonstrated that ZnNiWO4 was more effective in sensing p-NA than the other precursors were by using the quenching effect. The material showed remarkably high sensitivity towards p-NA in a concentration range of 25-1000 μM, and the limit of detection (LOD) value was found to be 1.93 × 10-8 M for ZnWO4, 2.17 × 10-8 M for NiWO4, and 2.98 × 10-8 M for ZnNiWO4, respectively.
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6
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Malakhova N, Mozharovskaia P, Kifle AB, Kozitsina A. Bismuth-coated screen-printed electrodes for the simple voltammetric determination of formaldehyde. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3423-3433. [PMID: 35993393 DOI: 10.1039/d2ay00876a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
For the first time, bismuth modified electrodes have been used for the voltammetric detection of formaldehyde (FM). The well-known method of forming formaldehyde hydrazone (FAH) in the presence of hydrazine sulphate was used to convert the hydrated form of FM into its electrochemically active derivative. Various experimental conditions for differential pulse voltammetry were studied to achieve the best analytical performance. The FAH reduction current (FM response) reaches its maximum value at a pH of a phosphate buffer solution of 5.2 ± 0.1 in the presence of 0.09-0.12 M hydrazine sulfate on a bismuth film preliminarily precipitated for 8-12 min from acidic Bi(III) acetate solutions at an electrolysis potential of -1.0 V on the surface of a screen-printed carbon electrode (SPCE). A dendritic-like film structure was created on the SPCE surface. Under the optimized conditions a linear calibration curve over the range of 0.01-5 mg L-1 (0.33-167 μM) FM was achieved, with a detection limit of 0.002 mg L-1 (0.06 μM). The determination of FM in waste water, melt water from snow within the city industrial zone, and a widely used pharmaceutical preparation "Endofalk®" with good results revealed the potential applicability of a bismuth modified SPCE (BiSPCE) for trace analysis.
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Affiliation(s)
- Nataliya Malakhova
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Polina Mozharovskaia
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Alexander Berhane Kifle
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
| | - Alisa Kozitsina
- Department of Analytical Chemistry, Institute of Chemical Technology, Ural Federal University named after the First President of Russia B. N. Yeltsin, Mira St, 28, Ekaterinburg 620002, Russian Federation.
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7
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Özdokur KV, Koçak ÇC, Eden Ç, Demir Z, Çirak Ç, Yavuz E, Çağlar B. Gold‐Nanoparticles‐Decorated ZrO
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‐CuO Nanocomposites: Synthesis, Characterization and A Novel Platform for Electrocatalytic Formaldehyde Oxidation. ChemistrySelect 2022. [DOI: 10.1002/slct.202201411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kemal Volkan Özdokur
- Department of Chemistry Faculty of Science and Letter Erzincan Binali Yıldırım University 24100 Erzincan Turkey
- Natural Sciences Application and Research Center Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | | | - Çiğdem Eden
- Graduate School of Natural and Applied Science Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | - Zeynep Demir
- Graduate School of Natural and Applied Science Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | - Çağrı Çirak
- Department of Physic Faculty of Science and Letter Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | - Emre Yavuz
- Çayırlı Vocational School Erzincan Binali Yıldırım University 24100 Erzincan Turkey
| | - Bülent Çağlar
- Department of Chemistry Faculty of Science and Letter Erzincan Binali Yıldırım University 24100 Erzincan Turkey
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8
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9
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Elghamry I, Al-Jendan SA, Saleh MM, Abdelsalam ME. Bimetallic nickel/manganese phosphate–carbon nanofiber electrocatalyst for the oxidation of formaldehyde in alkaline medium. RSC Adv 2022; 12:20656-20671. [PMID: 35919157 PMCID: PMC9292137 DOI: 10.1039/d2ra03359c] [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: 05/29/2022] [Accepted: 07/09/2022] [Indexed: 11/30/2022] Open
Abstract
The development of earth-abundant transition metal-based catalysts, supported by a conductive carbonaceous matrix, has received great attention in the field of conversion of formaldehyde derivatives into toxic-free species. Herein, we report a comprehensive investigation of bimetallic electrocatalyst activity towards the electrooxidation of formaldehyde. The bimetallic phosphate catalyst is prepared by co-precipitation of Ni and Mn phosphate precursors using a simple reflux approach. Then the bimetallic catalyst is produced by mixing the Ni/Mn with carbon fibres (CNFs). The structural properties and crystallinity of the catalyst were investigated by using several techniques, such as scanning electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, and Brunauer Emmett−Teller theory. The system performance was studied under potentiostatic conditions. Some theoretical thermodynamic and kinetic models were applied to assess the system performance. Accordingly, key electrochemical parameters, including surface coverage (Γ) of active species, charge transfer rate (ks), diffusion coefficient of the formaldehyde (D), and catalytic rate constant (kcat) were calculated at Γ = 1.690 × 10−4 mmol cm−2, ks = 1.0800 s−1, D = 1.185 × 10−3 cm2 s−1 and kcat = 1.08 × 105 cm3 mol−1 s−1. These findings demonstrate the intrinsic electrocatalytic activity of formaldehyde electrooxidation on nickel/manganese phosphate- CNFs in alkaline medium. The catalytic performance of bimetallic Ni/Mn phosphate–carbon nanofiber composite catalyst is better than mono metallic catalysts toward electrooxidation of formaldehyde.![]()
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Affiliation(s)
- Ibrahim Elghamry
- Department of Chemistry, College of Science, King Faisal University, P. O. Box 400, Al-Ahsa, 31982, Saudi Arabia
| | - Samya A. Al-Jendan
- Department of Chemistry, College of Science, King Faisal University, P. O. Box 400, Al-Ahsa, 31982, Saudi Arabia
| | - M. M. Saleh
- Department of Chemistry, College of Science, King Faisal University, P. O. Box 400, Al-Ahsa, 31982, Saudi Arabia
| | - Mamdouh E. Abdelsalam
- Department of Chemistry, College of Science, King Faisal University, P. O. Box 400, Al-Ahsa, 31982, Saudi Arabia
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10
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Zhang H, Tan L, Zhang Z, Zhang G, Lu J. Activated carbon and poly-o-anisidine(POA) synergistic supported Pt nanoparticles as a highly efficient catalyst for electrocatalytic oxidation of formaldehyde. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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11
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Rajkumar S, Gowri S, Dhineshkumar S, Merlin JP, Sathiyan A. Investigation on NiWO 4/PANI composite as an electrode material for energy storage devices. NEW J CHEM 2021. [DOI: 10.1039/d1nj03831a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
NiWO4/PANI was synthesized by an in situ chemical oxidative polymerization route. Incorporation of NiWO4 in a PANI matrix rendered high specific capacitance and salient morphological features.
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Affiliation(s)
- S. Rajkumar
- PG & Research Department of Chemistry, Bishop Heber College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli-620 017, Tamil Nadu, India
| | - S. Gowri
- Department of Physics, Cauvery College for Women, Affiliated to Bharathidasan University, Tiruchirappalli-620 018, Tamil Nadu, India
| | - S. Dhineshkumar
- PG & Research Department of Chemistry, Bishop Heber College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli-620 017, Tamil Nadu, India
| | - J. Princy Merlin
- PG & Research Department of Chemistry, Bishop Heber College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli-620 017, Tamil Nadu, India
| | - A. Sathiyan
- PG & Research Department of Chemistry, Bishop Heber College (Autonomous), Affiliated to Bharathidasan University, Tiruchirappalli-620 017, Tamil Nadu, India
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12
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Hendi AH, Osman AM, Khan I, Saleh TA, Kandiel TA, Qahtan TF, Hossain MK. Visible Light-Driven Photoelectrocatalytic Water Splitting Using Z-Scheme Ag-Decorated MoS 2/RGO/NiWO 4 Heterostructure. ACS OMEGA 2020; 5:31644-31656. [PMID: 33344816 PMCID: PMC7745211 DOI: 10.1021/acsomega.0c03985] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 11/13/2020] [Indexed: 05/23/2023]
Abstract
Herein, we have successfully constructed a solid-state Z-scheme photosystem with enhanced light absorption capacity by combining the optoelectrical properties of AgNPs with those of the MoS2/RGO/NiWO4 (Ag-MRGON) heterostructure. The Ag-MRGON Z-scheme system demonstrates improved photo-electrochemical (PEC) water-splitting performance in terms of applied bias photon-to-current conversion efficiency (ABPE), which is 0.52%, and 17.3- and 4.3-times better than those of pristine MoS2 and MoS2/NiWO4 photoanodes, respectively. The application of AgNPs as an optical property enhancer and RGO as an electron mediator improved the photocurrent density of Ag-MRGON to 3.5 mA/cm2 and suppressed the charge recombination to attain the photostability of ∼2 h. Moreover, the photocurrent onset potential of the Ag-MRGON heterojunction (i.e., 0.61 VRHE) is cathodically shifted compared to those of NiWO4 (0.83 VRHE), MoS2 (0.80 VRHE), and MoS2/NiWO4 heterojunction (0.73 VRHE). The improved PEC water-splitting performance in terms of ABPE, photocurrent density, and onset potential is attributed to the facilitated charge transfer through the RGO mediator, the plasmonic effect of AgNPs, and the proper energy band alignments with the thermodynamic potentials of hydrogen and oxygen evolution.
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Affiliation(s)
- Abdulmajeed H. Hendi
- Physics
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
| | - Abdalghaffar M. Osman
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
| | - Ibrahim Khan
- Center
for Integrative Petroleum Research (CIPR), College of Petroleum Engineering
& Geoscience (CPG), King Fahd University
of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Tawfik A. Saleh
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
| | - Tarek A. Kandiel
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
| | - Talal F. Qahtan
- Department
of Mechanical Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, Alkharj 11942, Saudi Arabia
| | - Mohammad K. Hossain
- Center
of Research Excellence in Renewable Energy Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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13
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Bhavani KS, Anusha T, Kumar JVS, Brahman PK. Enhanced Electrocatalytic Activity of Methanol and Ethanol Oxidation in Alkaline Medium at Bimetallic Nanoparticles Electrochemically Decorated Fullerene‐C
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Nanocomposite Electrocatalyst: An Efficient Anode Material for Alcohol Fuel Cell Applications. ELECTROANAL 2020. [DOI: 10.1002/elan.202060154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- K. Sai Bhavani
- Electroanalytical Lab, Department of Chemistry Koneru Lakshmaiah Education Foundation Vaddeswaram (A.P. India
| | - T. Anusha
- Electroanalytical Lab, Department of Chemistry Koneru Lakshmaiah Education Foundation Vaddeswaram (A.P. India
| | - J. V. Shanmukha Kumar
- Electroanalytical Lab, Department of Chemistry Koneru Lakshmaiah Education Foundation Vaddeswaram (A.P. India
| | - Pradeep Kumar Brahman
- Electroanalytical Lab, Department of Chemistry Koneru Lakshmaiah Education Foundation Vaddeswaram (A.P. India
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Gor’kov KV, Talagaeva NV, Kleinikova SA, Dremova NN, Vorotyntsev MA, Zolotukhina EV. Palladium-polypyrrole composites as prospective catalysts for formaldehyde electrooxidation in alkaline solutions. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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