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| Effect of Sintering Temperature on Properties of Graphene-containing Ti/IrTaSnSb-G Metal Oxide Anodes |
Jianfeng WEI1, Hongtian FU1,2, Tingyong WANG1,2( ), Shi XU2, Hui WANG2, Haitao WANG2 |
1 Luoyang Ship Material Research Institute, Luoyang 471000, China
2 Sunrui Marine Environment Engineering Co., Ltd, Qingdao 266101, China |
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Abstract Ti/IrTaSnSb-G anodes were prepared by thermal decomposition at different sintering temperatures, and then characterized by means of SEM with EDS. The electrochemical performance of the anodes in 1.5% (mass fraction) NaCl solution was assessed and the effect of sintering temperature on the property of the anodes was further studied. Results show that graphene promotes the segregation of IrO2 with dendritic structure on the surface of anodes at the appropriate sintering temperature, and the secondary crystallization phenomenon was found to produce the nano-needle structure of IrO2, which increases the active surface areas and improves the electrocatalytic activity of the anodes. However, the much higher sintering temperature will lead to rapid oxidative decomposition of graphene, which results in the decrease of IrO2 on the anode surface. The study also finds that the electrocatalytic activity of the anodes increases firstly as sintering temperature rises and then the gradually becomes poor . Among others, the anode prepared by sintering at 460 ℃ presents the best performance.
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Received: 17 October 2017
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| [1] | Stehouwer P P, Buma A, Peperzak L.A comparison of six different ballast water treatment systems based on UV radiation, electrochlorination and chlorine dioxide[J]. Environ. Technol., 2015, 36: 2094 | | [2] | David M, Gollasch S, Penko L.Identification of ballast water discharge profiles of a port to enable effective ballast water management and environmental studies[J]. J. Sea Res., 2018, 133: 60 | | [3] | Yan Z W, Zhao Y W, Zhang Z Z, et al.A study on the performance of IrO2-Ta2O5 coated anodes with surface treated Ti substrates[J]. Electrochim. Acta, 2015, 157: 345 | | [4] | Alam R, Mobin M, Aslam J.Polypyrrole/graphene nanosheets/rare earth ions/dodecyl benzene sulfonic acid nanocomposite as a highly effective anticorrosive coating[J]. Surf. Coat. Technol., 2016, 307: 382 | | [5] | Ardizzone S, Bianchi C L, Cappelletti G, et al.Composite ternary SnO2-IrO2-Ta2O5 oxide electrocatalysts[J]. J. Electroanal. Chem., 2006, 589: 160 | | [6] | Wei Z Q, Wang D B, Kim S, et al.Nanoscale tunable reduction of graphene oxide for graphene electronics[J]. Science, 2010, 328: 1373 | | [7] | Kumar G V, Agarwal S, Asif M, et al.Application of response surface methodology to optimize the adsorption performance of a magnetic graphene oxide nanocomposite adsorbent for removal of methadone from the environment[J]. J. Colloid Interface Sci., 2017, 497: 193 | | [8] | Pocrifka L A, Gon?alves C, Grossi P, et al.Development of RuO2-TiO2 (70-30) mol% for pH measurements[J]. Sens. Actuator., 2006, 113B: 1012 | | [9] | Hu J M, Sun X J, Hou Y Y, et al.Degradation characteristics of IrO2 type DSA in methanol aqueous solutions[J]. Electrochim. Acta, 2008, 53: 3127 | | [10] | Xu L K, Xin Y L, Wang J T.A comparative study on IrO2-Ta2O5 coated titanium electrodes prepared? with different methods[J]. Electrochim. Acta, 2009, 54: 1820 | | [11] | Ge B Y, Wang H T, Liu G Z, et al.Property of Ti/IrO2-Ta2O5-SnO2-Sb2O5 oxide anodes for ballast water treatment system[J]. Mater. Prot., 2016, 49(4): 10(葛宝玉, 王海涛, 刘光洲等. 船舶压载水处理用Ti/IrO2-Ta2O5-SnO2-Sb2O5氧化物阳极的性能[J]. 材料保护, 2016, 49(4): 10) | | [12] | Huang Y T, Peng Q.Progress in the study of the Ti-based metal oxide anodes[J]. Total Corros. Control, 2006, 20(1): 10(黄运涛, 彭乔. 钛基金属氧化物阳极的研究进展[J]. 全面腐蚀控制, 2006, 20(1): 10) | | [13] | Xu S, Fu H T, Liu G Z, et al.Research on the influence of seawater temperature on the efficiency of production of chlorine by electrolysis[J]. J. Chem. Ind. Eng., 2013, 34(5): 57(许实, 付洪田, 刘光洲等. 海水温度对电解制氯效率的影响研究[J]. 化学工业与工程技术, 2013, 34(5): 57) | | [14] | Ning H L, Xin Y L, Xu L K, et al.Study on properties of IrO2-Ta2O5 coated titanium anodes modified with graphene[J]. Rare Met. Mater. Eng., 2016, 45: 946(宁慧利, 辛永磊, 许立坤等. 含石墨烯IrO2-Ta2O5涂层钛阳极性能改进研究[J]. 稀有金属材料与工程, 2016, 45: 946) | | [15] | Trieu V, Schley B, Natter H, et al.RuO2-based anodes with tailored surface morphology for improved chlorine electro-activity[J]. Electrochim. Acta, 2012, 78: 188 | | [16] | La?njevac U ?, Radmilovi? V V, Radmilovi? V R, et al.RuOx nanoparticles deposited on TiO2 nanotube arrays by ion-exchange method as electrocatalysts for the hydrogen evolution reaction in acid solution[J]. Electrochim. Acta, 2015, 168: 178 | | [17] | Herrada R A, Medel A, Manríquez F, et al.Preparation of IrO2-Ta2O5|Ti electrodes by immersion, painting and electrophoretic deposition for the electrochemical removal of hydrocarbons from water[J]. J. Hazard. Mater., 2016, 319: 102 | | [18] | Karlsson R K B, Hansen H A, Bligaard T, et al. Ti atoms in Ru0.3Ti0.7O2 mixed oxides form active and selective sites for electrochemical chlorine evolution[J]. Electrochim. Acta, 2014, 146: 733 | | [19] | Hsiao H Y, Chuang M C.Eliminating evolved oxygen through an electro-flocculation efficiently prompts stability and catalytic kinetics of an IrOxnH2O colloidal nanostructured electrode for water oxidation[J]. Electrochim. Acta, 2014, 137: 190 | | [20] | Rosestolato D, Fregoni J, Ferro S, et al.Influence of the nature of the electrode material and process variables on the kinetics of the chlorine evolution reaction. The case of IrO2-based electrocatalysts[J]. Electrochim. Acta, 2014, 139: 180 | | [21] | Xin Y L, Xu L K, Wang J T, et al.Effect of sintering temperature on microstructure and electrocatalytic properties of Ti/IrO2-Ta2O5 anodes by pechini method[J]. Rare Met. Mater. Eng., 2010, 39: 1903(辛永磊, 许立坤, 王均涛等. 烧结温度对Ti/IrO2-Ta2O5纳米氧化物阳极微观结构和电催化性能的影响[J]. 稀有金属材料与工程, 2010, 39: 1903) |
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