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| Cobalt/Cobalt Oxide Surface for Water Oxidation | |
Feizi, Hadi; Bagheri, Robabeh1; Song, Zhenlun1; Shen, Jian-Ren ; Allakhverdiev, Suleyman I.; Najafpour, Mohammad Mahdi10,11
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| 2019 | |
| 发表期刊 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
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| ISSN | 2168-0485 |
| 卷号 | 7期号:6页码:6093-6105 |
| 摘要 | Water splitting to produce molecular hydrogen is an essential method to store sustainable energies. One of the bottlenecks for water splitting is the availability of an efficient and stable water-oxidizing catalyst. Herein, metallic cobalt foil, after the treatment under high potential (10-60.0 V), was used for water oxidation. The cobalt/ cobalt oxide surface was characterized by various spectroscopic, microscopy, X-ray diffraction, and electrochemical methods. Diffuse reflectance infrared Fourier transform spectroscopy showed peaks for Co oxide at 489 and 595 cm(-1) attributed to the stretching of Co-O and bending of O-Co-O bonds in the CoO6 octahedra. Small aggregated particles (ca. 50-100 nm) with a spherical morphology were detected by scanning electron microscopy, and high-resolution transmission electron microscopy from the mechanically separated particles indicated spacings of 2.5-2.6 angstrom corresponding to the interplanar spacings of the (011) plane for Co3O4. Selected area (electron) diffraction showed concentric rings centered on a bright central spot, indicating a polycrystalline material. Each ring is related to planes of different orientation and different interplanar spacing, attributed to metallic cobalt and cobalt oxides. X-ray diffraction resulted in patterns corresponding to Co3O4 and CoO(OH), and X-ray photoelectron spectroscopy could confirm the formation of metallic cobalt, Co(II) and Co(III) oxides on the surface of the electrode. These results suggest that the oxide on the surface of foil could be a mixture of different phases of Co oxide containing Co3O4 and CoO(OH). Under overpotentials of 460 and 780 mV, current densities of 0.144 and 0.5 A/cm(2) were observed at pH-14 without dropping of IR. To the best of our knowledge, the three-dimensional electrode obtained here is among the most efficient cobalt-based water-oxidizing electrodes under alkaline conditions reported so far and may be applied in large scale water-splitting systems. |
| 关键词 | Artificial photosynthesis Energy Cobalt Oxygen Water oxidation |
| 学科领域 | Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical |
| DOI | 10.1021/acssuschemeng.8b06269 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | HYDROGEN EVOLUTION REACTION ; OXYGEN-EVOLVING CATALYST ; ELECTROCATALYTIC RESPONSE ; COBALT PORPHYRINS ; NEUTRAL PH ; THIN-FILM ; ELECTRODES ; IRON ; CO ; NITROGEN |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| WOS记录号 | WOS:000461978200054 |
| 出版者 | AMER CHEMICAL SOC |
| 文献子类 | Article |
| 出版地 | WASHINGTON |
| 资助机构 | Iranian National Science Foundation (INSF)Iran National Science Foundation (INSF) [96003636] ; Russian Foundation for Basic Research (RFBR)Russian Foundation for Basic Research (RFBR) [17-54-560012] ; joint research project (INSF-RFBR) |
| 作者邮箱 | Suleyman.allakhverdiev@gmail.com ; mmnajafpour@iasbs.ac.ir |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/19487 |
| 专题 | 中科院光生物学重点实验室 |
| 作者单位 | 1.IASBS, Dept Chem, Zanjan 4513766731, Iran 2.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Surface Protect Res Grp, Surface Dept, 519 Zhuangshi Rd, Ningbo 315201, Zhejiang, Peoples R China 3.Okayama Univ, Res Inst Interdisciplinary Sci, Okayama 7008530, Japan 4.Okayama Univ, Grad Sch Nat Sci & Technol, Okayama 7008530, Japan 5.Chinese Acad Sci, Inst Bot, Key Lab Photobiol, Photosynth Res Ctr, 20 Nanxincun, Beijing 100093, Peoples R China 6.Allakhverdiev, Suleyman I.] Russian Acad Sci, Inst Plant Physiol, Controlled Photobiosynth Lab, Bot Skaya St 35, Moscow 127276, Russia 7.Allakhverdiev, Suleyman I.] Russian Acad Sci, Inst Basic Biol Problems, Pushchino 142290, Moscow Region, Russia 8.Allakhverdiev, Suleyman I.] Azerbaijan Natl Acad Sci, Inst Mol Biol & Biotechnol, Bionanotechnol Lab, Baku, Azerbaijan 9.Allakhverdiev, Suleyman I.] Moscow MV Lomonosov State Univ, Fac Biol, Dept Plant Physiol, Leninskie Gory 1-12, Moscow 119991, Russia 10.Allakhverdiev, Suleyman I.] Moscow Inst Phys & Technol, Dept Mol & Cell Biol, Inst Sky Lane 9, Dolgoprudnyi 141700, Moscow Region, Russia 11.IASBS, Ctr Climate Change & Global Warming, Zanjan 4513766731, Iran 12.IASBS, Res Ctr Basic Sci & Modern Technol RBST, Zanjan 4513766731, Iran |
| 推荐引用方式 GB/T 7714 | Feizi, Hadi,Bagheri, Robabeh,Song, Zhenlun,et al. Cobalt/Cobalt Oxide Surface for Water Oxidation[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(6):6093-6105. |
| APA | Feizi, Hadi,Bagheri, Robabeh,Song, Zhenlun,Shen, Jian-Ren,Allakhverdiev, Suleyman I.,&Najafpour, Mohammad Mahdi.(2019).Cobalt/Cobalt Oxide Surface for Water Oxidation.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(6),6093-6105. |
| MLA | Feizi, Hadi,et al."Cobalt/Cobalt Oxide Surface for Water Oxidation".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.6(2019):6093-6105. |
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