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Electrodeposition of cobalt-manganese oxide selective coatings for solar-thermal applications. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Physical and electrochemical behavior of black nickel coatings in presence of KNO3 and imidazole additives. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zhang D, Peng L, Yang Z, Yang Y, Li H. Gold-Supported Nanostructured NiFeCoPr Hydroxide as a High-Performance Supercapacitor Electrode and Electrocatalyst toward the Oxygen Evolution Reaction. Inorg Chem 2019; 58:15841-15852. [PMID: 31743005 DOI: 10.1021/acs.inorgchem.9b02230] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ding Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, People’s Republic of China
| | - Lanxin Peng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Zhaoguang Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, People’s Republic of China
| | - Ying Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
| | - Haipu Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, People’s Republic of China
- Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, People’s Republic of China
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Ma Y, Chu J, Li Z, Rakov D, Han X, Du Y, Song B, Xu P. Homogeneous Metal Nitrate Hydroxide Nanoarrays Grown on Nickel Foam for Efficient Electrocatalytic Oxygen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1803783. [PMID: 30468561 DOI: 10.1002/smll.201803783] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/01/2018] [Indexed: 06/09/2023]
Abstract
Developing facile routes for fabricating highly efficient oxygen evolution reaction (OER) electrocatalysts is in great demand but remains a great challenge. Herein, a novel molten salt decomposition method to prepare 3D metal nitrate hydroxide (MNH, M = Ni, Co, and Cu) nanoarrays homogenously grown on different conductive substrates, especially on nickel foam (NF) for OER applications, is reported. Compared with the as-prepared CoNH/NF and CuNH/NF, NiNH/NF presents a superior electrocatalytic OER activity and stability in an alkaline solution, with a very low overpotential of only 231 mV versus a reversible hydrogen electrode to deliver a geometrical catalytic current density of 50 mA cm-2 and a low Tafel slope of 81 mV dec-1 , outperforming most reported transition metal compound catalysts. Structural investigation after the OER process reveals the morphology integrity of the nanoarrays but the formation of metal oxyhydroxide (for NiNH and CoNH) or oxide (for CuNH) as the likely real active species. These metal nitrate hydroxide non-noble metal electrocatalysts can be prepared by an economical and simple method, with enhanced intrinsic activity and long-term stability and durability, which might be new candidates for energy conversion and storage applications.
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Affiliation(s)
- Yan Ma
- 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, China
| | - Jiayu Chu
- 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, China
| | - Zhennan 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, China
| | - Dmitrii Rakov
- 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, China
| | - Xijiang Han
- 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, China
| | - Yunchen Du
- 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, China
| | - Bo Song
- Center for Composite Materials and Structures, Harbin Institute of Technology, Harbin, 150001, China
| | - Ping 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, China
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Fatimah S, Khoerunnisa F, Ko YG. Decoration of an inorganic layer with nickel (hydr)oxide via green plasma electrolysis. RSC Adv 2018; 8:26804-26816. [PMID: 35541078 PMCID: PMC9083132 DOI: 10.1039/c8ra04708a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/18/2018] [Indexed: 11/21/2022] Open
Abstract
In this study, we describe the green plasma electrolysis of a magnesium alloy in alkaline electrolyte to produce a hybrid inorganic layer with nickel (hydr)oxide incorporated in a matrix of magnesium oxide, and investigate the electrochemical and optical properties of this material. The addition of Ni(NO3)2·6H2O to the electrolyte reduced the size of the micro-defects found in the inorganic layer after plasma electrolysis by inducing soft plasma discharges. As a result, through cyclic voltammetry and polarization tests, the corrosion stability of the sample containing nickel (hydr)oxide was significantly enhanced. Measurement of the optical properties reveals that the material possesses excellent energy efficiency as indicated by a high solar absorptivity of ∼0.92 and a low infrared emissivity of ∼0.13 which are presumably due to the inherent dark-brown colour of nickel (hydr)oxide. We expect that these results will have implications in the development of functional materials with excellent optical and corrosion properties by considering green processing utilizing alkaline electrolyte. Nickel (hydr)oxide decorating MgO matrix via green plasma electrolysis exhibited high solar absorbance but low infrared emissivity.![]()
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Affiliation(s)
- Siti Fatimah
- Materials Electrochemistry Group
- School of Materials Science and Engineering
- Yeungnam University
- Gyeongsan 38541
- Republic of Korea
| | - Fitri Khoerunnisa
- Department of Chemistry
- Indonesia University of Education
- Bandung 40154
- Indonesia
| | - Young Gun Ko
- Materials Electrochemistry Group
- School of Materials Science and Engineering
- Yeungnam University
- Gyeongsan 38541
- Republic of Korea
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