1
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Gao C, Kong L, Pan L, Li D, Lin J. A novel sacrificial solvent method to synthesize self-supporting Co 9S 8/Ni 3S 2 heterostructure catalyst for efficient oxygen evolution reaction. J Colloid Interface Sci 2023; 652:1756-1763. [PMID: 37672978 DOI: 10.1016/j.jcis.2023.08.186] [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: 06/25/2023] [Revised: 08/10/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023]
Abstract
Synthesizing catalysts for efficient oxygen evolution reaction (OER) with lower cost and simpler design is of significant importance to achieve sustainable hydrogen production. In this work, we propose a novel "sacrificial solvent method" for the first time. Dicobalt octacarbonyl (Co2(CO)8), dimethyl sulfoxide (DMSO), and Ni foam (NF) were used as the raw materials in the solvothermal process. DMSO played the role of both the sacrificial solvent and the sulfur source. Through the self-consumption of DMSO, we finally obtained the Co9S8/Ni3S2 heterostructure supported on the NF (Co9S8/Ni3S2@NF) in one step. The Co9S8/Ni3S2@NF catalyst exhibited excellent OER activity in alkaline environment, with an overpotential of only 264 mV at a current density of 20 mA cm-2, a low Tafel slope of 68.28 mV dec-1 and maintained its current density after 20 h of constant potential testing. This work introduces a new method for synthesizing metal sulfide catalysts using DMSO as a sacrificial solvent. It provides broader opportunities for the development of more efficient and sustainable catalysts for energy conversion and storage.
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Affiliation(s)
- Chang Gao
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Linghui Kong
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Lu Pan
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Dongxv Li
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Jianjian Lin
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
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2
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Srivastava R, Chaudhary H, Kumar A, de Souza FM, Mishra SR, Perez F, Gupta RK. Optimum iron-pyrophosphate electronic coupling to improve electrochemical water splitting and charge storage. DISCOVER NANO 2023; 18:148. [PMID: 38047966 PMCID: PMC10695914 DOI: 10.1186/s11671-023-03937-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/02/2023] [Indexed: 12/05/2023]
Abstract
Tuning the electronic properties of transition metals using pyrophosphate (P2O7) ligand moieties can be a promising approach to improving the electrochemical performance of water electrolyzers and supercapacitors, although such a material's configuration is rarely exposed. Herein, we grow NiP2O7, CoP2O7, and FeP2O7 nanoparticles on conductive Ni-foam using a hydrothermal procedure. The results indicated that, among all the prepared samples, FeP2O7 exhibited outstanding oxygen evolution reaction and hydrogen evolution reaction with the least overpotential of 220 and 241 mV to draw a current density of 10 mA/cm2. Theoretical studies indicate that the optimal electronic coupling of the Fe site with pyrophosphate enhances the overall electronic properties of FeP2O7, thereby enhancing its electrochemical performance in water splitting. Further investigation of these materials found that NiP2O7 had the highest specific capacitance and remarkable cycle stability due to its high crystallinity as compared to FeP2O7, having a higher percentage composition of Ni on the Ni-foam, which allows more Ni to convert into its oxidation states and come back to its original oxidation state during supercapacitor testing. This work shows how to use pyrophosphate moieties to fabricate non-noble metal-based electrode materials to achieve good performance in electrocatalytic splitting water and supercapacitors.
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Affiliation(s)
- Rishabh Srivastava
- Department of Physics, Pittsburg State University, Pittsburg, KS, 66762, USA
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA
| | - Himanshu Chaudhary
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA
| | - Anuj Kumar
- Nano-Technology Research Laboratory, Department of Chemistry, GLA University, Mathura, Uttar Pradesh, 281406, India.
| | - Felipe M de Souza
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA
| | - Sanjay R Mishra
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN, 38152, USA
| | - Felio Perez
- Integrated Microscopy Center, The University of Memphis, Memphis, TN, 38152, USA
| | - Ram K Gupta
- National Institute for Materials Advancement, Pittsburg State University, Pittsburg, KS, 66762, USA.
- Department of Chemistry, Pittsburg State University, Pittsburg, KS, 66762, USA.
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3
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Dong X, Peng C, Zhao X, Zhang T, Liu Y, Xu G, Zhou J, Guo F, Yu Z, Jia X. Self-assembled c-oriented Ni(OH) 2 films for enhanced electrocatalytic activity towards the urea oxidation reaction. RSC Adv 2023; 13:29625-29631. [PMID: 37822661 PMCID: PMC10562896 DOI: 10.1039/d3ra05538h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 09/22/2023] [Indexed: 10/13/2023] Open
Abstract
This study investigates the electrocatalytic properties of the transparent c-oriented Ni(OH)2 films self-assembled from colloidal 2D Ni(OH)2 nanosheets for urea oxidation. The synthesis process yields highly uniform close-packed superlattices with a dominant c-axis orientation. The self-assembled c-oriented Ni(OH)2 films exhibit advantageous electrocatalytic performance in urea oxidation, presenting significantly lower overpotentials and higher current densities compared to randomly distributed Ni(OH)2 particles. In-depth in situ impedance analysis and Raman spectroscopy demonstrate that the c-oriented Ni(OH)2 films possess a higher propensity for a Ni valence transition from +2 to +3 during the urea oxidation process. This finding provides crucial insights into the catalytic behavior and electronic transformations of c-oriented Ni(OH)2 films, shedding light on their superior electrocatalytic activity for urea oxidation. Overall, this study advances our understanding of urea electrooxidation mechanisms and contributes to the design of efficient urea electrocatalysts.
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Affiliation(s)
- Xinwei Dong
- School of Electronic Engineering, Liuzhou Key Laboratory of New Energy Vehicle Power Lithium Battery, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Chen Peng
- School of Electronic Engineering, Liuzhou Key Laboratory of New Energy Vehicle Power Lithium Battery, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Xu Zhao
- School of Computer Science and Technology, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Tao Zhang
- School of Computer Science and Technology, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Yansheng Liu
- School of Electronic Engineering, Liuzhou Key Laboratory of New Energy Vehicle Power Lithium Battery, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Guoxiao Xu
- School of Electronic Engineering, Liuzhou Key Laboratory of New Energy Vehicle Power Lithium Battery, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Jin Zhou
- School of Electronic Engineering, Liuzhou Key Laboratory of New Energy Vehicle Power Lithium Battery, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Fei Guo
- School of Electronic Engineering, Liuzhou Key Laboratory of New Energy Vehicle Power Lithium Battery, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Zhiqiang Yu
- School of Electronic Engineering, Liuzhou Key Laboratory of New Energy Vehicle Power Lithium Battery, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
| | - Xiaobo Jia
- School of Electronic Engineering, Liuzhou Key Laboratory of New Energy Vehicle Power Lithium Battery, Guangxi University of Science and Technology Liuzhou 545006 Guangxi China
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4
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Samadi-Maybodi A, Ghezel-Sofla H, BiParva P. Co/Ni/Al-LTH Layered Triple Hydroxides with Zeolitic Imidazolate Frameworks (ZIF-8) as High Efficient Removal of Diazinon from Aqueous Solution. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02469-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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5
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Ren Y, Wang C, Duan W, Zhou L, Pang X, Wang D, Zhen Y, Yang C, Gao Z. MoS 2/Ni 3S 2 Schottky heterojunction regulating local charge distribution for efficient urea oxidation and hydrogen evolution. J Colloid Interface Sci 2022; 628:446-455. [PMID: 35998467 DOI: 10.1016/j.jcis.2022.08.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/06/2022] [Accepted: 08/10/2022] [Indexed: 10/16/2022]
Abstract
Electrocatalytic urea oxidation reaction (UOR) is a prospective method to substitute the slow oxygen evolution reaction (OER) and solve the problem of urea-rich water pollution due to the low thermodynamic voltage, but its complex six-electron oxidation process greatly impedes the overall efficiency of electrolysis. Here, density functional theory (DFT) calculations imply that the metallic Ni3S2 and semiconductive MoS2 could form Mott-Schottky catalyst because of the suitable band structure. Therefore, we synthesized MoS2/Ni3S2 electrocatalyst by a simple hydrothermal method, and studied its UOR and hydrogen evolution reaction (HER) performance. The formed MoS2/Ni3S2 Schottky heterojunction is only required 109 and 166 mV to obtain ±10 mA cm-2 for UOR and HER, respectively, showing great bifunctional catalytic activity. Moreover, the full urea electrolysis driven by MoS2/Ni3S2 delivers 10 and 100 mA cm-2 at a relatively low potential of 1.44 and 1.59 V. Comprehensive experiments and DFT calculations demonstrate that the MoS2/Ni3S2 Schottky heterojunction causes self-driven charge transfer at the interface and forms built-in electric field, which is not only benefit to reduce H* adsorption energy, but also helps to adjust the absorption and directional distribution of urea molecules, thereby promoting the activity of decomposition of water and urea. This research furnishes a tactic to devise more efficient catalysts for H2 generation and the treatment of urea-rich water pollution.
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Affiliation(s)
- Yufei Ren
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China
| | - Chuantao Wang
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China
| | - Wen Duan
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China
| | - Lihai Zhou
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China
| | - Xiangxiang Pang
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China
| | - Danjun Wang
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China
| | - Yanzhong Zhen
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China
| | - Chunming Yang
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China.
| | - Ziwei Gao
- College of Chemistry & Chemical Engineering, Yan'an University, Research Institute of Comprehensive Energy Industry Technology, Yan'an 716000, Shaanxi, PR China; Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Xi'an Key Laboratory of Organometallic Material Chemistry, School of Chemistry & Chemical Engineering, Shaanxi Normal University, No.620, West Chang'an Avenue, Xi'an 710119, PR China; School of Chemistry & Chemical Engineering, Xinjiang Normal University, Urumqi 830054, PR China.
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6
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Shahaf Y, Mahammed A, Raslin A, Kumar A, Farber EM, Gross Z, Eisenberg D. Orthogonal Design of Fe‐N4 Active Sites and Hierarchical Porosity in Hydrazine Oxidation Electrocatalysts. ChemElectroChem 2022. [DOI: 10.1002/celc.202200045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yair Shahaf
- Technion Israel Institute of Technology Schulich Faculty of Chemistry and the Grand Technion Energy Program ISRAEL
| | - Atif Mahammed
- Technion Israel Institute of Technology Schulich Faculty of Chemistry ISRAEL
| | - Arik Raslin
- Technion Israel Institute of Technology Schulich Faculty of Chemistry ISRAEL
| | - Amit Kumar
- Technion Israel Institute of Technology Schulich Faculty of Chemistry ISRAEL
| | - Eliyahu M. Farber
- Technion Israel Institute of Technology Schulich Faculty of Chemistry and the Grand Technion Energy Program ISRAEL
| | - Zeev Gross
- Technion Israel Institute of Technology Schulich Faculty of Chemistry ISRAEL
| | - David Eisenberg
- Technion Israel Institute of Technology Schulich Faculty of Chemistry, the Grand Technion Energy Program, and the Russel Berrie Nanotechnology Institute Technion City Haifa ISRAEL
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7
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Hefnawy MA, Medany SS, El‐Sherif RM, Fadlallah SA. NiO‐MnOx/Polyaniline/Graphite Electrodes for Urea Electrocatalysis: Synergetic Effect between Polymorphs of MnOx and NiO. ChemistrySelect 2022. [DOI: 10.1002/slct.202103735] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Mahmoud A. Hefnawy
- Department of Chemistry Faculty of Science Cairo University 12613 Giza Egypt
| | - Shymaa S. Medany
- Department of Chemistry Faculty of Science Cairo University 12613 Giza Egypt
| | - Rabab M. El‐Sherif
- Department of Chemistry Faculty of Science Cairo University 12613 Giza Egypt
| | - Sahar A. Fadlallah
- Department of Chemistry Faculty of Science Cairo University 12613 Giza Egypt
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8
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Abstract
The electrochemical urea oxidation reaction (UOR) is crucial for determining industrial and commercial applications of urea-based energy conversion devices. However, the performance of UOR is limited by the dynamic complex of the six-electron transfer process. To this end, it is essential to develop efficient UOR catalysts. Nickel-based materials have been extensively investigated owing to their high activity, easy modification, stable properties, and cheap and abundant reserves. Various material designs and strategies have been investigated in producing highly efficient UOR catalysts including alloying, doping, heterostructure construction, defect engineering, micro functionalization, conductivity modulation, etc. It is essential to promptly review the progress in this field to significantly inspire subsequent studies. In this review, we summarized a comprehensive investigation of the mechanisms of oxidation or poisoning and UOR processes on nickel-based catalysts as well as different approaches to prepare highly active catalysts. Moreover, challenges and prospects for future developments associated with issues of UOR in urea-based energy conversion applications were also discussed.
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9
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Hefnawy MA, Fadlallah SA, El-Sherif RM, Medany SS. Synergistic effect of Cu-doped NiO for enhancing urea electrooxidation: Comparative electrochemical and DFT studies. JOURNAL OF ALLOYS AND COMPOUNDS 2022; 896:162857. [DOI: 10.1016/j.jallcom.2021.162857] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
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10
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Kim C, Lee S, Kim SH, Kwon I, Park J, Kim S, Lee JH, Park YS, Kim Y. Promoting electrocatalytic overall water splitting by sulfur incorporation into CoFe-(oxy)hydroxide. NANOSCALE ADVANCES 2021; 3:6386-6394. [PMID: 36133497 PMCID: PMC9418770 DOI: 10.1039/d1na00486g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 09/07/2021] [Indexed: 06/16/2023]
Abstract
The design and fabrication of highly cost-effective electrocatalysts with high activity, and stability to enhance the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) has been considered to be one of the most promising approaches toward overall water splitting. In this study, sulfur-incorporated cobalt-iron (oxy)hydroxide (S-(Co,Fe)OOH) nanosheets were directly grown on commercial iron foam via galvanic corrosion and hydrothermal methods. The incorporation of sulfur into (Co,Fe)OOH results in superior catalytic performance and high stability in both the HER and OER conducted in 1 M KOH. The incorporation of sulfur enhanced the electrocatalytic activity by modifying the electronic structure and chemical states of (Co,Fe)OOH. An alkaline water electrolyzer for overall water splitting was fabricated using a two-electrode configuration utilizing the S-(Co,Fe)OOH bifunctional electrocatalyst in both the HER and OER. The fabricated electrolyzer outperformed a precious metal-based electrolyzer using Pt/C as the HER electrocatalyst and IrO2 as the OER electrocatalyst, which are the benchmark catalysts. This electrolyzer provides a lower potential of 1.641 V at 10 mA cm-2 and maintains 98.4% of its performance after 50 h of durability testing. In addition, the S-(Co,Fe)OOH-based electrolyzer successfully generated hydrogen under natural illumination upon its combination with a commercial silicon solar cell and exhibited a solar to hydrogen (STH) efficiency of up to 13.0%. This study shows that S-(Co,Fe)OOH is a promising candidate for application in the future renewable energy industry due to its high cost-effectiveness, activity, and stability during overall water splitting. In addition, the combination of a commercial silicon solar cell with an alkaline water electrolyzer has great potential for the production of hydrogen.
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Affiliation(s)
- Chiho Kim
- Department of Materials Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Seunghun Lee
- Department of Materials Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Seong Hyun Kim
- Department of Materials Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Ilyeong Kwon
- Department of Materials Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Jaehan Park
- Department of Materials Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Shinho Kim
- BK21 four, Innovative Graduate Education Program for Global High-tech Materials & Parts, Pusan National University Busan 46241 Republic of Korea
| | - Jae-Ho Lee
- Department of Materials Science and Engineering, Hongik University Seoul 04066 Republic of Korea
| | - Yoo Sei Park
- Department of Materials Science and Engineering, Pusan National University Busan 46241 Republic of Korea
| | - Yangdo Kim
- Department of Materials Science and Engineering, Pusan National University Busan 46241 Republic of Korea
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11
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Tatarchuk SW, Choueiri RM, Medvedeva XV, Chen LD, Klinkova A. Inductive effects in cobalt-doped nickel hydroxide electronic structure facilitating urea electrooxidation. CHEMOSPHERE 2021; 279:130550. [PMID: 34134403 DOI: 10.1016/j.chemosphere.2021.130550] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 03/22/2021] [Accepted: 04/07/2021] [Indexed: 06/12/2023]
Abstract
Electrochemical oxidation of urea provides an approach to prevent excess urea emissions into the environment while generating value by capturing chemical energy from waste. Unfortunately, the source of high catalytic activity in state-of-the-art doped nickel catalysts for urea oxidation reaction (UOR) activity remains poorly understood, hindering the rational design of new catalyst materials. In particular, the exact role of cobalt as a dopant in Ni(OH)2 to maximize the intrinsic activity towards UOR remains unclear. In this work, we demonstrate how tuning the Ni:Co ratio allows us to control the intrinsic activity and number of active surface sites, both of which contribute towards increasing UOR performance. We show how Ni90Co10(OH)2 achieves the largest geometric current density due to the increase of available surface sites and that intrinsic activity towards UOR is maximized with Ni20Co80(OH)2. Through density functional theory calculations, we show that the introduction of Co alters the Ni 3d electronic state density distribution to lower the minimum energy required to oxidize Ni and influence potential surface adsorbate interactions.
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Affiliation(s)
- Stephen W Tatarchuk
- Department of Chemistry and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Rachelle M Choueiri
- Department of Chemistry and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada; Electrochemical Technology Centre, Department of Chemistry, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Xenia V Medvedeva
- Department of Chemistry and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada
| | - Leanne D Chen
- Electrochemical Technology Centre, Department of Chemistry, University of Guelph, Guelph, ON, N1G 2W1, Canada.
| | - Anna Klinkova
- Department of Chemistry and Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON, N2L 3G1, Canada.
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12
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Li Z, Mi H, Guo F, Ji C, He S, Li H, Qiu J. Oriented Nanosheet-Assembled CoNi-LDH Cages with Efficient Ion Diffusion for Quasi-Solid-State Hybrid Supercapacitors. Inorg Chem 2021; 60:12197-12205. [PMID: 34324812 DOI: 10.1021/acs.inorgchem.1c01413] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fast-charged energy-storage technologies have become important nowadays as they are required by many applications, including automobiles. This inspires the exploitation of hybrid supercapacitors (HSCs) with the advantages of fast charge offered by the capacitor characters and high energy density from the property of battery technology. The challenges lay in the construction of advanced materials with high pseudocapacitive activity. Herein, a metal-organic framework derivative is utilized to address the problems. Specifically, polyhedral CoNi layered double hydroxide (CoNi-LDHx) cages assembled in the form of nanosheet arrays are prepared from ZIF-67 using a facile ion-exchange approach. Based on the control over the mass ratio of ZIF-67 to Ni salt, the optimal CoNi-LDH2 is attained. It exhibits ultrahigh capacities ranging from 1031.4 to 667.3 C g-1 under 1-25 A g-1, thanks to rich Faradaic active spots and the accelerated kinetics provided by the synergy between nanosheet arrays and the hollow structure. The CoNi-LDH2-based HSC with the gel electrolyte shares remarkable energy output of 49 Wh kg-1 and approving cyclability with almost no capacity decay after 12 000 cycles. This is an advancement vs many related studies and can arouse tremendous interests of researchers in solving the main problems of energy storage.
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Affiliation(s)
- Zixiao Li
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Hongyu Mi
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Fengjiao Guo
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Chenchen Ji
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Shixue He
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Han Li
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, Xinjiang, China
| | - Jieshan Qiu
- State Key Laboratory of Chemical Resource Engineering, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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13
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Li J, Li J, Gong M, Peng C, Wang H, Yang X. Catalyst Design and Progresses for Urea Oxidation Electrolysis in Alkaline Media. Top Catal 2021. [DOI: 10.1007/s11244-021-01453-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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14
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Kim B, Das G, Kim J, Yoon HH, Lee DH. Ni-Co-B nanoparticle decorated carbon felt by electroless plating as a bi-functional catalyst for urea electrolysis. J Colloid Interface Sci 2021; 601:317-325. [PMID: 34087592 DOI: 10.1016/j.jcis.2021.05.078] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/10/2021] [Accepted: 05/13/2021] [Indexed: 11/24/2022]
Abstract
A free-standing catalyst electrode for urea electrolysis was synthesized by electroless plating of NiCoB alloy onto a flexible carbon felt. The synthesized NiCoB@C catalyst exhibited porous and partially amorphous metallic structure depending on its composition, as analysed by XRD, XPS, and TEM; thus, NiCoB@C catalyst showed a high catalytic activity for urea oxidation reaction as well as hydrogen evolution reaction. The required cell voltage in the electrolysis cell with NiCoB@C as anode and cathode was as low as 1.34 V for the current densities 10 mA cm-2. Similar performance of the urea electrolysis for H2 production using 0.33 M urea and a fresh urine in 1 M KOH was observed. The result indicated that NiCoB could be incorporated on to carbon felt by electroless plating, and it could be used as free-standing bifunctional electrodes for urea electrolysis using urea as well as urine.
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Affiliation(s)
- Bohyeon Kim
- Department of Chemical and Biological Engineering, Gachon University, Gyeonggi-Do, Republic of Korea
| | - Gautam Das
- Department of Chemical Engineering, Hanyang University (Erica Campus), Ansan-Si, Gyeonggi Do, Republic of Korea
| | - Jihyeon Kim
- Department of Chemical and Biological Engineering, Gachon University, Gyeonggi-Do, Republic of Korea
| | - Hyon Hee Yoon
- Department of Chemical and Biological Engineering, Gachon University, Gyeonggi-Do, Republic of Korea.
| | - Dal Ho Lee
- Department of Electronic Engineering, Gachon University, Gyeonggi-Do, Republic of Korea.
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15
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Wang X, Zhang W, Zhang J, Zhang J, Wu Z. Co(OH)
2
Nanosheets Array Doped by Cu
2+
Ions with Optimal Electronic Structure for Urea‐Assisted Electrolytic Hydrogen Generation. ChemElectroChem 2021. [DOI: 10.1002/celc.202100443] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiangyu Wang
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base) The Key Laboratory of Functional Molecular Solids, Ministry of Education Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 P. R. China
| | - Wuzhengzhi Zhang
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base) The Key Laboratory of Functional Molecular Solids, Ministry of Education Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 P. R. China
| | - Junliang Zhang
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base) The Key Laboratory of Functional Molecular Solids, Ministry of Education Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 P. R. China
| | - Jing Zhang
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base) The Key Laboratory of Functional Molecular Solids, Ministry of Education Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 P. R. China
| | - Zhengcui Wu
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base) The Key Laboratory of Functional Molecular Solids, Ministry of Education Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes Anhui Provincial Engineering Laboratory for New-Energy Vehicle Battery Energy-Storage Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 P. R. China
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16
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Li R, Xu H, Yang P, Wang D, Li Y, Xiao L, Lu X, Wang B, Zhang J, An M. Synergistic Interfacial and Doping Engineering of Heterostructured NiCo(OH) x-Co yW as an Efficient Alkaline Hydrogen Evolution Electrocatalyst. NANO-MICRO LETTERS 2021; 13:120. [PMID: 34138350 PMCID: PMC8093358 DOI: 10.1007/s40820-021-00639-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/26/2021] [Indexed: 05/13/2023]
Abstract
To achieve high efficiency of water electrolysis to produce hydrogen (H2), developing non-noble metal-based catalysts with considerable performance have been considered as a crucial strategy, which is correlated with both the interphase properties and multi-metal synergistic effects. Herein, as a proof of concept, a delicate NiCo(OH)x-CoyW catalyst with a bush-like heterostructure was realized via gas-template-assisted electrodeposition, followed by an electrochemical etching-growth process, which ensured a high active area and fast gas release kinetics for a superior hydrogen evolution reaction, with an overpotential of 21 and 139 mV at 10 and 500 mA cm-2, respectively. Physical and electrochemical analyses demonstrated that the synergistic effect of the NiCo(OH)x/CoyW heterogeneous interface resulted in favorable electron redistribution and faster electron transfer efficiency. The amorphous NiCo(OH)x strengthened the water dissociation step, and metal phase of CoW provided sufficient sites for moderate H immediate adsorption/H2 desorption. In addition, NiCo(OH)x-CoyW exhibited desirable urea oxidation reaction activity for matching H2 generation with a low voltage of 1.51 V at 50 mA cm-2. More importantly, the synthesis and testing of the NiCo(OH)x-CoyW catalyst in this study were all solar-powered, suggesting a promising environmentally friendly process for practical applications.
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Affiliation(s)
- Ruopeng Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Hao Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Peixia Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China.
| | - Dan Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Yun Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Lihui Xiao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Xiangyu Lu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Bo Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China.
| | - Jinqiu Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
| | - Maozhong An
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, People's Republic of China
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17
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Tonelli D, Gualandi I, Musella E, Scavetta E. Synthesis and Characterization of Layered Double Hydroxides as Materials for Electrocatalytic Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:725. [PMID: 33805722 PMCID: PMC8000615 DOI: 10.3390/nano11030725] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/01/2021] [Accepted: 03/08/2021] [Indexed: 11/17/2022]
Abstract
Layered double hydroxides (LDHs) are anionic clays which have found applications in a wide range of fields, including electrochemistry. In such a case, to display good performances they should possess electrical conductivity which can be ensured by the presence of metals able to give reversible redox reactions in a proper potential window. The metal centers can act as redox mediators to catalyze reactions for which the required overpotential is too high, and this is a key aspect for the development of processes and devices where the control of charge transfer reactions plays an important role. In order to act as redox mediator, a material can be present in solution or supported on a conductive support. The most commonly used methods to synthesize LDHs, referring both to bulk synthesis and in situ growth methods, which allow for the direct modification of conductive supports, are here summarized. In addition, the most widely used techniques to characterize the LDHs structure and morphology are also reported, since their electrochemical performance is strictly related to these features. Finally, some electrocatalytic applications of LDHs, when synthesized as nanomaterials, are discussed considering those related to sensing, oxygen evolution reaction, and other energy issues.
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Affiliation(s)
- Domenica Tonelli
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale Risorgimento 4, 40136 Bologna, Italy; (I.G.); (E.M.); (E.S.)
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18
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Guo C, Shen S, Li M, Wang Y, Li J, Xing Y, Wang C, Pan H. Rapid in situ synthesis of MgAl-LDH on η-Al2O3 for efficient hydrolysis of urea in wastewater. J Catal 2021. [DOI: 10.1016/j.jcat.2020.12.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Fabrication of Co(Ni)-P surface bonding states on core–shell Co(OH)2@P-NiCo-LDH towards electrocatalytic hydrogen evolution reaction. J Colloid Interface Sci 2021; 582:535-542. [DOI: 10.1016/j.jcis.2020.08.086] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 12/26/2022]
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20
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Gao W, Lei M, Li L, Wen D. Promoting the electrocatalytic properties of nickel aerogel by gold decoration for efficient electrocatalytic oxygen evolution in alkali. Chem Commun (Camb) 2020; 56:15446-15449. [PMID: 33236736 DOI: 10.1039/d0cc06337a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Decorating Au onto Ni aerogel via a one-step spontaneous gelation preserved the highly porous structure of Ni aerogel, and contributed to more active sites and enhanced intrinsic activity for water oxidation with low overpotential of 377 mV for the current density of 100 mA cm-2.
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Affiliation(s)
- Wei Gao
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene (NPU), Xi'an, 710072, P. R. China.
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21
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Khalafallah D, Ouyang C, Zhi M, Hong Z. Synthesis of porous Ag 2S-NiCo 2S 4 hollow architecture as effective electrode material with high capacitive performances. NANOTECHNOLOGY 2020; 31:475401. [PMID: 32531765 DOI: 10.1088/1361-6528/ab9c54] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fabrication of highly reactive and cost-effective electrode materials is a key to efficient functioning of green energy technologies. Decorating redox-active metal sulfides with conductive dopants is one of the most effective approaches to enhance electric conductivity and consequently boost capacitive properties. Herein, hierarchically hollow Ag2S-NiCo2S4 architectures are designed with an enhanced conductivity by a simple solvothermal approach. With the favorable porous characteristics and composition, the optimized Ag2S-NiCo2S4-5 electrode exhibits higher specific capacitance (276.5 mAh g-1 at a current density of 1 A g-1), a good rate performance (56.3% capacity retention at 50 A g-1), and an improved cycling stability (92.4% retention after 2000 cycles). This finding originates from the enhanced charge transportation ability within the hierarchical structure, abundant electroactive sites, and low contact resistance. In addition, a battery supercapacitor device constructed with the Ag2S-NiCo2S4-5 as a positive electrode displays a maximum energy density of 63.3Wh kg-1 at an energy density of 821.8 W kg-1 with an excellent cycling stability (89.4% capacity retention after 10 000 cycles). Therefore, the present work puts forward new possibility to develop composite electrodes for energy storage battery-supercapacitor.
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Affiliation(s)
- Diab Khalafallah
- State Key Laboratory of Silicon Material, School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, People's Republic of China. Mechanical Design and Materials Department, Faculty of Energy Engineering, Aswan University, P.O. Box 81521, Aswan, Egypt
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22
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Boccalon E, Gorrasi G, Nocchetti M. Layered double hydroxides are still out in the bloom: Syntheses, applications and advantages of three-dimensional flower-like structures. Adv Colloid Interface Sci 2020; 285:102284. [PMID: 33164779 DOI: 10.1016/j.cis.2020.102284] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/09/2020] [Accepted: 10/09/2020] [Indexed: 01/08/2023]
Abstract
Layered double hydroxides (LDHs) have received great attention for years in numerous fields. Controlled and flexible layer composition, as well as the vast assortment of possible anionic guests, and easy adaptability for multipurpose applications, have been some of the many reasons behind their extraordinary success. However, versatility does not only involve the composition or the dimensions of the crystals but also their morphology. Aside from conventional hexagonal, flat structures, three-dimensional assemblies have been reported with architectures closely resembling those of flowers. The possibility of interconnecting the LDH nanosheets in rosette-like geometries has arisen the interest in finding new ways to control, modulate, and guide the particle growth obtaining hierarchical structures to be adapted to specific targets. This review is focused on describing the different strategies implemented to build flower-like assemblies, and on investigating their applications, looking for specific advantages of the use of a three-dimensional architecture over a bi-dimensional one.
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Affiliation(s)
- Elisa Boccalon
- Department of Industrial Engineering, Via Giovanni Paolo II 132, University of Salerno, 84084 Salerno, Italy
| | - Giuliana Gorrasi
- Department of Industrial Engineering, Via Giovanni Paolo II 132, University of Salerno, 84084 Salerno, Italy.
| | - Morena Nocchetti
- Department of Pharmaceutical Sciences, Via del Liceo 1, University of Perugia, 06123 Perugia, Italy
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23
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Khalafallah D, Zhi M, Hong Z. Development Trends on Nickel‐Based Electrocatalysts for Direct Hydrazine Fuel Cells. ChemCatChem 2020. [DOI: 10.1002/cctc.202001018] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Diab Khalafallah
- State Key Laboratory of Silicon Material School of Materials Science and Engineering Zhejiang University 38 Zheda Road Hangzhou 310027 P.R. China
- Mechanical Design and Materials Department Faculty of Energy Engineering Aswan University P.O. Box 81521 Aswan Egypt
| | - Mingjia Zhi
- State Key Laboratory of Silicon Material School of Materials Science and Engineering Zhejiang University 38 Zheda Road Hangzhou 310027 P.R. China
| | - Zhanglian Hong
- State Key Laboratory of Silicon Material School of Materials Science and Engineering Zhejiang University 38 Zheda Road Hangzhou 310027 P.R. China
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24
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Alotaibi N, Hammud HH, Al Otaibi N, Prakasam T. Electrocatalytic Properties of 3D Hierarchical Graphitic Carbon-Cobalt Nanoparticles for Urea Oxidation. ACS OMEGA 2020; 5:26038-26048. [PMID: 33073130 PMCID: PMC7558028 DOI: 10.1021/acsomega.0c03477] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
A 3D hierarchical graphitic carbon nanostructure encapsulating cobalt(0)/cobalt oxide nanoparticles (CoGC) has been prepared by solid-state pyrolysis of a mixture of anthracene and cobalt 2,2'-bipyridine terephthalate complex at 850 °C. Based on the Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH) methods, the prepared material has high surface area (186.8 m2 g-1) with an average pore width of 205.5 Å. XPS reveals the functionalization of carbon with different oxygen-containing groups, such as carboxylic acid groups. The presence of metallic cobalt nanoparticles with cubic and hexagonal crystalline structures encapsulated in graphitized carbon is confirmed using XRD and TEM. Raman spectroscopy indicates a graphitization degree of I D/I G = 1.02. CoGC was cast onto a glassy carbon electrode and used for urea electrooxidation in an alkaline solution. The electrochemical investigation shows that the newly prepared CoGC has a promising electrocatalytic activity toward urea. The specific activity is 128 mA cm-1 mg-1 for the electrooxidation of 0.3 M urea in 1 M KOH at a relatively low onset potential (0.31 V vs Ag/AgCl). It can be mainly attributed to the morphological structure of carbon and the high reactivity of cobalt nanoparticles. The calculated charge-transfer resistance, R ct, of the modified electrode in the presence of urea (10.95 Ω) is significantly lower than that in the absence of urea (113.5 Ω), which indicates electrocatalytic activity. The value of charge-transfer rate constant, k s, for the anodic reaction is 0.0058 s-1. Electrocatalytic durability in 1000 s chronoamperometry of the modified electrode suggests high structure stability. The modified electrode retained about 60% of its activity after 100 cycles as indicated by linear sweep voltammetry.
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Affiliation(s)
- Nusaybah Alotaibi
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
| | - Hassan H. Hammud
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
| | - Nasreen Al Otaibi
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
| | - Thirumurugan Prakasam
- Chemistry
Program, New York University Abu Dhabi (NYUAD), Abu Dhabi, United Arab Emirates
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25
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Khalafallah D, Zou Q, Zhi M, Hong Z. Tailoring hierarchical yolk-shelled nickel cobalt sulfide hollow cages with carbon tuning for asymmetric supercapacitors and efficient urea electrocatalysis. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136399] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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26
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Hu X, Zhu J, Li J, Wu Q. Urea Electrooxidation: Current Development and Understanding of Ni‐Based Catalysts. ChemElectroChem 2020. [DOI: 10.1002/celc.202000404] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xinrang Hu
- Department of ChemistryLishui University Lishui 323000 P R China
| | - Jiaye Zhu
- Department of ChemistryLishui University Lishui 323000 P R China
| | - Jiangfeng Li
- Department of ChemistryLishui University Lishui 323000 P R China
| | - Qingsheng Wu
- School of Chemical Science and EngineeringTongji University Shanghai 200092 P R China
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27
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Khalafallah D, Ouyang C, Zhi M, Hong Z. Carbon Anchored Epitaxially Grown Nickel Cobalt‐Based Carbonate Hydroxide for Urea Electrooxidation Reaction with a High Activity and Durability. ChemCatChem 2020. [DOI: 10.1002/cctc.201902304] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Diab Khalafallah
- State Key Laboratory of Silicon Material School of Materials Science and EngineeringZhejiang University 38 Zheda Road Hangzhou 310027 P.R. China
- Mechanical Design and Materials Department Faculty of Energy EngineeringAswan University P.O. Box 81521 Aswan Egypt
| | - Chong Ouyang
- State Key Laboratory of Silicon Material School of Materials Science and EngineeringZhejiang University 38 Zheda Road Hangzhou 310027 P.R. China
| | - Mingjia Zhi
- State Key Laboratory of Silicon Material School of Materials Science and EngineeringZhejiang University 38 Zheda Road Hangzhou 310027 P.R. China
| | - Zhanglian Hong
- State Key Laboratory of Silicon Material School of Materials Science and EngineeringZhejiang University 38 Zheda Road Hangzhou 310027 P.R. China
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28
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Khalafallah D, Wu Z, Zhi M, Hong Z. Rational Design of Porous Structured Nickel Manganese Sulfides Hexagonal Sheets-in-Cage Structures as an Advanced Electrode Material for High-Performance Electrochemical Capacitors. Chemistry 2020; 26:2251-2262. [PMID: 31769082 DOI: 10.1002/chem.201904991] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 11/22/2019] [Indexed: 01/11/2023]
Abstract
The design of hierarchical electrodes comprising multiple components with a high electrical conductivity and a large specific surface area has been recognized as a feasible strategy to remarkably boost pseudocapacitors. Herein, we delineate hexagonal sheets-in-cage shaped nickel-manganese sulfides (Ni-Mn-S) with nanosized open spaces for supercapacitor applications to realize faster redox reactions and a lower charge-transfer resistance with a markedly enhanced specific capacitance. The hybrid was facilely prepared through a two-step hydrothermal method. Benefiting from the synergistic effect between Ni and Mn active sites with the improvement of both ionic and electric conductivity, the resulting Ni-Mn-S hybrid displays a high specific capacitance of 1664 F g-1 at a current density of 1 A g-1 and a capacitance of 785 F g-1 is maintained at a current density of 50 A g-1 , revealing an outstanding capacity and rate performance. The asymmetric supercapacitor device assembled with the Ni-Mn-S hexagonal sheets-in-cage as the positive electrode delivers a maximum energy density of 40.4 Wh kg-1 at a power density of 750 W kg-1 . Impressively, the cycling retention of the as-fabricated device after 10 000 cycles at a current density of 10 A g-1 reaches 85.5 %. Thus, this hybrid with superior capacitive performance holds great potential as an effective charge-storage material.
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Affiliation(s)
- Diab Khalafallah
- State Key Laboratory of Silicon Material, School of, Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China.,Mechanical Design and Materials Department, Faculty of, Energy Engineering, Aswan University, P.O. Box, 81521, Aswan, Egypt
| | - Zongxiao Wu
- State Key Laboratory of Silicon Material, School of, Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Mingjia Zhi
- State Key Laboratory of Silicon Material, School of, Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
| | - Zhanglian Hong
- State Key Laboratory of Silicon Material, School of, Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou, 310027, P. R. China
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29
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Gonçalves JM, Martins PR, Angnes L, Araki K. Recent advances in ternary layered double hydroxide electrocatalysts for the oxygen evolution reaction. NEW J CHEM 2020. [DOI: 10.1039/d0nj00021c] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The recent advances in ternary layered double hydroxide electrocatalysts, including the strategies used for the design, synthesis, and evaluation of their performance for oxygen evolution reaction are reviewed in this account.
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Affiliation(s)
- Josué M. Gonçalves
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of Sao Paulo
- Sao Paulo
- Brazil
| | | | - Lucio Angnes
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of Sao Paulo
- Sao Paulo
- Brazil
| | - Koiti Araki
- Department of Fundamental Chemistry
- Institute of Chemistry
- University of Sao Paulo
- Sao Paulo
- Brazil
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