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Manzoor S, Alsaiari NS, Katubi KM, Nisa MU, Abid AG, Chughtai AH, Abdullah M, Aman S, Al-Buriahi MS, Ashiq MN. Facile fabrication of SnSe nanorods embedded in GO nanosheet for robust oxygen evolution reaction. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2023. [DOI: 10.1080/16583655.2022.2151298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Sumaira Manzoor
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan-, Pakistan
| | - Norah Salem Alsaiari
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | - Mehar Un Nisa
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan-, Pakistan
| | - Abdul Ghafoor Abid
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan-, Pakistan
| | | | | | - Salma Aman
- Institute of Physics, KhwajaFareed University of Engineering and Information Technology, Rahim Yar Khan-, Pakistan
| | | | - Muhammad Naeem Ashiq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan-, Pakistan
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Tang C, Zhong L, Xiong R, Xiao Y, Cheng B, Lei S. Regulable in-situ autoredox for anchoring synergistic Ni/NiO nanoparticles on reduced graphene oxide with boosted alkaline electrocatalytic oxygen evolution. J Colloid Interface Sci 2023; 648:181-192. [PMID: 37301143 DOI: 10.1016/j.jcis.2023.05.179] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/23/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
To develop ideal alternatives to noble metal catalysts, transition metal catalysts supported on graphene have been receiving extensive attention in the field of electrochemical energy. In this work, using graphene oxide (GO) and nickel formate as precursors, Ni/NiO synergistic nanoparticles with regulable composition are anchored on reduced graphene oxide (RGO) to prepare Ni/NiO/RGO composite electrocatalysts through in-situ autoredox. Thanks to the synergistic effect of Ni3+ active sites and Ni electron donors, the as-prepared Ni/NiO/RGO catalysts exhibit efficient electrocatalytic oxygen evolution performance in 1.0 M KOH electrolyte. The optimal sample has an overpotential of only 275 mV at a current density of 10 mA cm-2 and a small Tafel slope of 90 mV dec-1, which are very comparable to those of commercial RuO2 catalyst. Additionally, the catalytic capacity and structure remain stable after 2000 cyclic voltammetry cycles. For the electrolytic cell assembled with the best-performing sample as anode and commercial Pt/C as cathode, the current density can reach 10 mA cm-2 at a low potential of 1.57 V and remains stable after 30 h of continuous work. It would be expected that the as-developed Ni/NiO/RGO catalyst with high activity should have broad application prospects.
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Affiliation(s)
- Changcun Tang
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Longsheng Zhong
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Renzhi Xiong
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Yanhe Xiao
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Baochang Cheng
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Shuijin Lei
- School of Physics and Materials Science, Nanchang University, Nanchang, Jiangxi 330031, China.
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Subramanian S, Ganapathy S, Dharmalingam S, Subramanian S, Ayyaswamy A. Enhanced charge carrier transfer process in nickel titanate nanostructures for environmental remediation of industrial dye. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27337-y. [PMID: 37140870 DOI: 10.1007/s11356-023-27337-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 04/26/2023] [Indexed: 05/05/2023]
Abstract
The effective charge carrier transfer process in one-dimensional (1D) NiTiO3 nanofibers and NiTiO3 nanoparticles was demonstrated experimentally, showcasing an effective photocatalytic enhancement under visible light ambience. The rhombohedral crystal structure of NiTiO3 nanostructures was confirmed using X-ray diffractometer (XRD). The morphology and optical characteristics of the synthesized nanostructures were characterized using scanning electron microscopy (SEM) and UV-visible spectroscopy (UV-Vis). Nitrogen adsorption-desorption analysis corresponding to NiTiO3 nanofibers showcased porous structures with an average pore size of ~3.9 nm. The photoelectrochemical (PEC) measurement studies revealed an enhanced photocurrent for the NiTiO3 nanostructures, confirming enhanced charge carriers transportation in fibers than in particles due to the delocalized electrons in the conduction band, thereby hindering the photoexcited charge carrier's recombination. The photodegradation efficiency of methylene blue (MB) dye under the visible light irradiation revealed an enhancement in the rate of degradation for NiTiO3 nanofibers when compared to NiTiO3 nanoparticles.
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Affiliation(s)
- Suguna Subramanian
- Crystal Growth Centre, Anna University, Chennai, Tamil Nadu, 600 025, India
| | - Sasikala Ganapathy
- Crystal Growth Centre, Anna University, Chennai, Tamil Nadu, 600 025, India.
| | - Sangeetha Dharmalingam
- Department of Mechanical Engineering, Anna University, Chennai, Tamil Nadu, 600 025, India
| | | | - Arivarasan Ayyaswamy
- Multifunctional Materials Laboratory, Department of Physics, International Research Centre, Kalasalingam Academy of Research and Education, Krishnankoil, Tamil Nadu, 626126, India
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Bhuvanendran N, Park CW, Su H, Lee SY. Multifunctional Pt 3Rh-Co 3O 4 alloy nanoparticles with Pt-enriched surface and induced synergistic effect for improved performance in ORR, OER, and HER. ENVIRONMENTAL RESEARCH 2023; 229:115950. [PMID: 37084945 DOI: 10.1016/j.envres.2023.115950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/02/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Engineering high-performance electrocatalysts to improve the kinetics of parallel electrochemical reactions in low-temperature fuel cells, water splitting, and metal-air battery applications is important and inevitable. In this study, by employing a chemical co-reduction method, we developed multifunctional Pt3Rh-Co3O4 alloy with uniformly distributed ultrafine nanoparticles (2-3 nm), supported on carbon. The presence of Co3O4 and the incorporation of Rh led to a strong electronic and ligand effect in the Pt lattice environment, which caused the d-band center of Pt to shift. This shift improved the electrocatalytic performance of Pt3Rh-Co3O4 alloy. When Pt3Rh-Co3O4/C was used to catalyze the oxygen reduction reaction (E1/2: 0.75 V), oxygen evolution reaction (η10: 290 mV), and hydrogen evolution reaction (η10: 55 mV), it showed greater endurance (mass activity loss of only 7%-17%) than Pt-Co3O4/C and Pt/C catalysts up to 5000 potential cycles in perchloric acid. Overall, the as-prepared Pt3Rh-Co3O4/C showed high multifunctional electrocatalytic potency, as demonstrated by typical electrochemical studies, and its physicochemical properties endorse their extended performance for a wide range of energy storage and conversion applications.
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Affiliation(s)
| | - Chae Won Park
- Department of Advanced Battery Convergence Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Huaneng Su
- Institute for Energy Research, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Sae Youn Lee
- Department of Energy and Materials Engineering, Dongguk University, Seoul, 04620, Republic of Korea.
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Zheng Y, Yu D, Xu W, Zhang K, Ma K, Guo X, Lou Y, Hu M. Robust FeCoP nanoparticles grown on a rGO-coated Ni foam as an efficient oxygen evolution catalyst for excellent alkaline and seawater electrolysis. Dalton Trans 2023; 52:3493-3500. [PMID: 36846870 DOI: 10.1039/d2dt03857a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Electrochemical water splitting is a potential green hydrogen energy generation technique. With the shortage of fresh water, abundant seawater resources should be developed as the main raw material for water electrolysis. However, since the precipitation reaction of chloride ions in seawater will compete with the oxygen evolution reaction (OER) and corrode the catalyst, seawater electrolysis is restricted by the decrease in activity, low stability, and selectivity. Rational design and development of efficient and stable catalysts is the key to seawater electrolysis. Herein, a high-activity bimetallic phosphide FeCoP, grown on a reduced graphene oxide (rGO)-protected Ni Foam (NF) substrate using FeCo Prussian Blue Analogue (PBA) as a template, was designed for application in alkaline natural seawater electrolysis. The OER activity confirmed that the formed FeCoP@rGO/NF has high electrocatalytic performance. In 1 M KOH and natural alkaline seawater, the overpotential was only 257 mV and 282 mV under 200 mA cm-2, respectively. It also demonstrated long-term stability up to 200 h. Therefore, this study provides new insight into the application of PBA as a precursor of bimetallic phosphide in the electrolysis of seawater at high current density.
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Affiliation(s)
- Yingping Zheng
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China. .,Analysis and Testing Center, Southeast University, Nanjing 211189, P. R. China
| | - Dehua Yu
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Wei Xu
- Analysis and Testing Center, Southeast University, Nanjing 211189, P. R. China
| | - Ke Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Kaili Ma
- Analysis and Testing Center, Southeast University, Nanjing 211189, P. R. China
| | - Xinyu Guo
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Yongbing Lou
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
| | - Mulin Hu
- Hefei Technology College, Hefei 238000, P. R. China
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Esfahani RAM, Kong F, Black-Araujo K, Easton LJ, Ebralidze II, Easton EB. A doped metal oxide PGM-free electrocatalyst for the oxygen reduction reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Milikić J, Knežević S, Stojadinović S, Alsaiari M, Harraz FA, Santos DMF, Šljukić B. Facile Synthesis of Low-Cost Copper-Silver and Cobalt-Silver Alloy Nanoparticles on Reduced Graphene Oxide as Efficient Electrocatalysts for Oxygen Reduction Reaction in Alkaline Media. NANOMATERIALS 2022; 12:nano12152657. [PMID: 35957088 PMCID: PMC9370632 DOI: 10.3390/nano12152657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 02/04/2023]
Abstract
Copper-silver and cobalt-silver alloy nanoparticles deposited on reduced graphene oxide (CuAg/rGO and CoAg/rGO) were synthesized and examined as electrocatalysts for oxygen reduction reaction (ORR) and hydrogen peroxide reduction reaction (HPRR) in alkaline media. Characterization of the prepared samples was done by transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction analysis (XRD), and scanning electron microscopy with integrated energy-dispersive X-ray spectroscopy (SEM-EDS). CuAg/rGO and CoAg/rGO nanoparticles diameter ranged from 0.4 to 9.2 nm. The Ag loading was ca. 40 wt.% for both electrocatalysts, with that for Cu and Co being 35 and 17 wt.%, respectively. CoAg/rGO electrocatalyst showed a Tafel slope of 109 mV dec−1, significantly lower than that for CuAg/rGO (184 mV dec−1), suggesting faster ORR kinetics. Additionally, a higher diffusion current density was obtained for CoAg/rGO (−2.63 mA cm−2) than for CuAg/rGO (−1.74 mA cm−2). The average value of the number of electrons transferred during ORR was 2.8 for CuAg/rGO and 3.3 for CoAg/rGO electrocatalyst, further confirming the higher ORR activity of the latter. On the other hand, CuAg/rGO showed higher peak current densities (−3.96 mA cm−2) for HPRR compared to those recorded for CoAg/rGO electrocatalyst (−1.96 mA cm−2).
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Affiliation(s)
- Jadranka Milikić
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia;
- Correspondence: (J.M.); (D.M.F.S.)
| | - Sara Knežević
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia;
| | - Stevan Stojadinović
- University of Belgrade, Faculty of Physics, Studentski trg 12-16, 11000 Belgrade, Serbia;
| | - Mabkhoot Alsaiari
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia; (M.A.); (F.A.H.)
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Najran 11001, Saudi Arabia
| | - Farid A. Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia; (M.A.); (F.A.H.)
- Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), Helwan 11421, Cairo, Egypt
| | - Diogo M. F. Santos
- Center of Physics and Engineering of Advanced Materials, Laboratory for Physics of Materials and Emerging Technologies, Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
- Correspondence: (J.M.); (D.M.F.S.)
| | - Biljana Šljukić
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia;
- Center of Physics and Engineering of Advanced Materials, Laboratory for Physics of Materials and Emerging Technologies, Chemical Engineering Department, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisbon, Portugal
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