CN104851607A - 一种改性废弃pvc基活性炭负载碲化锌复合电极材料及其制备方法 - Google Patents
一种改性废弃pvc基活性炭负载碲化锌复合电极材料及其制备方法 Download PDFInfo
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- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
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- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
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Abstract
本发明公开了一种改性废弃PVC基活性炭负载碲化锌复合电极材料,其特征在于,由下列重量份的原料制成:氧化亚镍1-2、海藻酸树脂1-2、二甲苯4-7、碲化锌2-3、纳米碳酸铁1-2、纳米硫化钡1-2、改性废弃PVC基活性炭110-130、锆酸酯偶联剂1-2、醋酸乙烯树脂1-2、蒸馏水10-15;本发明利用废弃的PVC制备电极材料活性炭,具有比表面积大、导电率高等优点,对资源合理化利用,解决环境污染的问题,碲化锌具有良好的位相匹配特性和良好的导电特性,能够较容易的掺杂在活性炭的表面,具有提高电极材料导电性和比电容量的作用。
Description
技术领域
本发明涉及化学能源材料领域,特别是一种改性废弃PVC基活性炭负载碲化锌复合电极材料及其制备方法。
背景技术
随着全球经济的快速发展、化石能源的不断消耗、环境污染的日益严重,研究一种高效、低成本、环境友好、高性能的能源转换和储存系统已经显得越来越重要。超级电容器具有功率密度高、充电时间短、使用寿命长等优点而被广泛应用于电动汽车,军事,移动通讯设备等领域,从而引起了科研工作者的广泛关注。超级电容器可以分为电化学双电层电容器和法拉第赝电容器。碳材料具有高比表面积、成本低、循环寿命长等优点而被应用于电化学双电层电容器中,但是其比电容低严重限制了碳基电极材料的商业发展;过渡金属氧化物由于具有高的比电容和优异的循环可逆性,但一般价格比较昂贵,所以一般将炭材料和过渡金属氧化物掺杂制备出复合电极材料,能够吸取彼此的优点,达到资源合理化利用。碲化锌是一种具有良好的位相匹配特性和良好的导电特性,能够较易的掺杂在活性炭的表面,并且增强其导电性和比电容量。
本发明利用废弃的PVC材料通过化学物理方法制备出具有高比表面积、孔隙分布均匀、孔径大小均匀的活性炭,不仅解决了废弃PVC对环境的危害,并且作为超级电容器的电极材料应用前景广泛。
发明内容
本发明的目的是提供一种改性废弃PVC基活性炭负载碲化锌复合电极材料及其制备方法。
为了实现本发明的目的,本发明通过以下方案实施:
一种改性废弃PVC基活性炭负载碲化锌复合电极材料,由下列重量份的原料制成:氧化亚镍1-2、海藻酸树脂1-2、二甲苯4-7、碲化锌2-3、纳米碳酸铁1-2、纳米硫化钡1-2、改性废弃PVC基活性炭110-130、锆酸酯偶联剂1-2、醋酸乙烯树脂1-2、蒸馏水10-15;
所述改性废弃PVC基活性炭是由下列重量份的原料制成:硫酸钠2-3、硫酸铝钾1-2、电气石2-3、氨丙基三乙氧基硅烷2-3、硬脂酸钙1-2、氮化铝粉1-2、氧化石墨烯1-2、废弃PVC材料400-500、氢氧化钙15-25、20%的硫酸30-50;制备方法是将废弃PVC材料破碎、筛分后得到粒径在5-10mm的粒料,将所得粒料和氢氧化钙通入炭化炉中,通入预热至300°C的水蒸气,迅速升高温度至800-900°C进行炭化、活化,冷却至常温后加到20%的硫酸中,于60-70°C下反应3-5小时,再用去离子水洗涤至中性,和氨丙基三乙氧基硅烷及其余剩余的物质混合加热至70-90°C搅拌反应30-50分钟,干燥后研磨即可。
本发明所述一种改性废弃PVC基活性炭负载碲化锌复合电极材料,由以下步骤具体制成:
(1)将蒸馏水、二甲苯、海藻酸树脂、醋酸乙烯树脂和改性废弃PVC基活性炭混合搅拌均匀,加热至50-60°C,形成浆料,喷雾干燥后备用;
(2)将步骤(1)的产物和锆酸酯偶联剂及其余剩余物质混合研磨,研磨后置于管式炉中,通入纯氨气,在400-600°C温度下退火处理2-4小时,得到氮包覆的废弃PVC基复合电极材料。
本发明的优点是:本发明利用废弃的PVC制备电极材料活性炭,具有比表面积大、导电率高等优点,对资源合理化利用,解决环境污染的问题,碲化锌具有良好的位相匹配特性和良好的导电特性,能够较容易的掺杂在活性炭的表面,具有提高电极材料导电性和比电容量的作用。
具体实施方案
下面通过具体实例对本发明进行详细说明。
一种改性废弃PVC基活性炭负载碲化锌复合电极材料,由下列重量份(公斤)的原料制成:氧化亚镍2、海藻酸树脂1、二甲苯5、碲化锌3、纳米碳酸铁1、纳米硫化钡2、改性废弃PVC基活性炭110、锆酸酯偶联剂1、醋酸乙烯树脂2、蒸馏水14;
所述改性废弃PVC基活性炭是由下列重量份(公斤)的原料制成:硫酸钠2、硫酸铝钾1、电气石2、氨丙基三乙氧基硅烷2、硬脂酸钙1、氮化铝粉2、氧化石墨烯2、废弃PVC材料500、氢氧化钙20、20%的硫酸45;制备方法是将废弃PVC材料破碎、筛分后得到粒径在5-10mm的粒料,将所得粒料和氢氧化钙通入炭化炉中,通入预热至300°C的水蒸气,迅速升高温度至800-900°C进行炭化、活化,冷却至常温后加到20%的硫酸中,于60-70°C下反应3-5小时,再用去离子水洗涤至中性,和氨丙基三乙氧基硅烷及其余剩余的物质混合加热至70-90°C搅拌反应30-50分钟,干燥后研磨即可。
本发明所述一种改性废弃PVC基活性炭负载碲化锌复合电极材料,由以下步骤具体制成:
(1)将蒸馏水、二甲苯、海藻酸树脂、醋酸乙烯树脂和改性废弃PVC基活性炭混合搅拌均匀,加热至50-60°C,形成浆料,喷雾干燥后备用;
(2)将步骤(1)的产物和锆酸酯偶联剂及其余剩余物质混合研磨,研磨后置于管式炉中,通入纯氨气,在400-600°C温度下退火处理2-4小时,得到氮包覆的废弃PVC基复合电极材料。
以实施例中的电极材料和导电剂、粘结剂按照比例混合,加入少量的无水乙醇混合均匀,均匀涂抹在不锈钢网集流体上真空干燥,以饱和甘汞电极为参比电极,聚四氟乙烯为隔膜,以6mol/l的KOH电解质水溶液为电解液,在1.2-2.5V的范围内,在恒流(5mA)下进行循环测试,容量:1.73F,内阻:1.7Ω·m,循环容量保持率(%):98.6。
Claims (2)
1.一种改性废弃PVC基活性炭负载碲化锌复合电极材料,其特征在于,由下列重量份的原料制成:氧化亚镍1-2、海藻酸树脂1-2、二甲苯4-7、碲化锌2-3、纳米碳酸铁1-2、纳米硫化钡1-2、改性废弃PVC基活性炭110-130、锆酸酯偶联剂1-2、醋酸乙烯树脂1-2、蒸馏水10-15;
所述改性废弃PVC基活性炭是由下列重量份的原料制成:硫酸钠2-3、硫酸铝钾1-2、电气石2-3、氨丙基三乙氧基硅烷2-3、硬脂酸钙1-2、氮化铝粉1-2、氧化石墨烯1-2、废弃PVC材料400-500、氢氧化钙15-25、20%的硫酸30-50;制备方法是将废弃PVC材料破碎、筛分后得到粒径在5-10mm的粒料,将所得粒料和氢氧化钙通入炭化炉中,通入预热至300°C的水蒸气,迅速升高温度至800-900°C进行炭化、活化,冷却至常温后加到20%的硫酸中,于60-70°C下反应3-5小时,再用去离子水洗涤至中性,和氨丙基三乙氧基硅烷及其余剩余的物质混合加热至70-90°C搅拌反应30-50分钟,干燥后研磨即可。
2.根据权利要求1所述一种改性废弃PVC基活性炭负载碲化锌复合电极材料,其特征在于,由以下步骤具体制成:
(1)将蒸馏水、二甲苯、海藻酸树脂、醋酸乙烯树脂和改性废弃PVC基活性炭混合搅拌均匀,加热至50-60°C,形成浆料,喷雾干燥后备用;
(2)将步骤(1)的产物和锆酸酯偶联剂及其余剩余物质混合研磨,研磨后置于管式炉中,通入纯氨气,在400-600°C温度下退火处理2-4小时,得到氮包覆的废弃PVC基复合电极材料。
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