CN110136973A - 一种RuO2负载PEDOT纳米线的合成方法 - Google Patents
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- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(IV) oxide Inorganic materials O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims abstract description 10
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- 235000019394 potassium persulphate Nutrition 0.000 claims description 3
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical group OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 2
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- 230000001376 precipitating effect Effects 0.000 claims 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
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- 239000000463 material Substances 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract description 3
- 239000002033 PVDF binder Substances 0.000 description 3
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- 239000003795 chemical substances by application Substances 0.000 description 2
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- ONQDVAFWWYYXHM-UHFFFAOYSA-M potassium lauryl sulfate Chemical compound [K+].CCCCCCCCCCCCOS([O-])(=O)=O ONQDVAFWWYYXHM-UHFFFAOYSA-M 0.000 description 2
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
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- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
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- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
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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
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
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- H01G11/22—Electrodes
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- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
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Abstract
本发明提供一种RuO2负载PEDOT纳米线的合成方法,其特征在于,包括以下步骤:将EDOT单体溶于去离子水中,加入KI和RuI3,再加入模板剂,超声搅拌溶解;将引发剂溶解在另一份去离子水中,缓慢加入第一份溶液中,加入过程中持续搅拌,室温~40℃静置反应12~24小时后得到沉淀,经过滤洗涤烘干得到RuO2负载碘掺杂的PEDOT纳米线粉末。本发明工艺简单,适用性强,常温下原位一步法合成RuO2‑PEDOT:I2纳米线复合材料,电导率高,材料的结构形貌控制稳定,比电容高,循环性能好。
Description
技术领域
本发明属于材料化学技术领域,涉及一种RuO2负载PEDOT纳米线的合成方法。
背景技术
氧化钌(RuO2)具有非常高的理论赝电容(>1300F/g),电化学可逆性好,循环性能好,是最有潜力的氧化物超级电容材料。但是,纯RuO2价格昂贵,电导率低,通常与碳材料、导电高分子等复合构成复合超级电容电极材料。PEDOT具有适中的比电容,在P型掺杂状态下电导率高,窗口电压宽、良好的热稳定性合化学稳定性。一维结构的PEDOT构成线团状结构具有更高的比表面积,从而获得更高的电容量。将零维的氧化钌RuO2纳米颗粒与一维的PEDOT纳米线复合可产生协同效应,具备良好的比容量和充放电循环性能。不同电极材料简单共混极易形成分相,难以实现复合材料的性能设计优势。本发明提出一种原位合成RuO2负载PEDOT纳米线的合成方法,并实现原位碘掺杂。
发明内容
本发明的目的在于提供一种RuO2负载PEDOT纳米线的合成方法,其特征在于,包括以下步骤:将EDOT单体溶于去离子水中,加入KI和RuI3,再加入模板剂,超声搅拌溶解;将引发剂溶解在另一份去离子水中,缓慢加入第一份溶液中,加入过程中持续搅拌,室温~40℃静置反应12~24小时后得到沉淀,经过滤洗涤烘干得到RuO2负载碘掺杂的PEDOT纳米线粉末。
所述EDOT单体在最终反应溶液中的浓度为0.02~0.05mol/L;模板剂为十二烷基硫酸钠、十二烷基硫酸钾、十二烷基苯磺酸钠、十二烷基苯磺酸钾中的一种或其组合,最终反应溶液中的浓度为0.005mol/L~0.01mol/L。
所述碘化钾在最终反应溶液中的浓度为10~20gL-1,RuI3在最终反应溶液中的浓度为1~5gL-1。
所述引发剂包括过硫酸铵、过硫酸钾、过硫酸钠中的一种,浓度为0.8~1.2mol/L。
所述的洗涤是用去离子水和甲醇交替洗涤,每次洗涤后采用离心机沉淀或抽滤设备进行过滤,过滤产物重新在去离子水或乙醇中分散,反复过滤直到滤液pH值为7,最后一次用乙醇洗涤以方便干燥;所述的干燥是在50~80℃真空烘箱中烘干,真空干燥条件为真空度<133Pa。
本发明工艺简单,适用性强,常温下原位一步法合成RuO2-PEDOT:I2纳米线复合材料,电导率高,材料的结构形貌控制稳定,比电容高,循环性能好。
本发明的内容和特点已揭示如上,然而前面叙述的本发明仅仅简要地或只涉及本发明的特定部分,本发明的特征可能比在此公开的内容涉及的更多。因此,本发明的保护范围应不限于实施例所揭示的内容,而应该包括在不同部分中所体现的所有内容的组合,以及各种不背离本发明的替换和修饰,并为本发明的权利要求书所涵盖。
附图说明
图1为采用本发明(实施例1)合成RuO2负载碘掺杂的PEDOT纳米线微观形态的扫描电镜照片。
具体实施方式
实施例1
将0.1mol/L EDOT单体溶于50mL去离子水中,加入40gL-1KI和10gL-1RuI3,再加入0.02mol/L十二烷基硫酸钠超声搅拌溶解;将2.4mol/L过硫酸铵溶解在另一份50mL去离子水中,缓慢加入第一份溶液中,加入过程中持续搅拌,室温静置反应24小时后得到沉淀,经过滤洗涤烘干得到如图1所示的RuO2负载碘掺杂的PEDOT纳米线粉末。将制备的粉体用PVDF作为粘结剂涂覆在PET膜上,再均匀涂覆一层PVA/H3PO4凝胶电解质,剪成大小相同的2个5cm×8cm片材,分别作为正负电极,待两个电极上面的电解质处于半干状态时,将2个电极面对面贴在一起,烘干得到全固态对称型超级电容器,比容量为556Fg-1。
实施例2
将0.04mol/L EDOT单体溶于50mL去离子水中,加入20gL-1KI和2gL-1RuI3,再加入0.01mol/L十二烷基苯磺酸钠超声搅拌溶解;将1.6mol/L过硫酸钠溶解在另一份50mL去离子水中,缓慢加入第一份溶液中,加入过程中持续搅拌,40℃静置反应12小时后得到沉淀,经过滤洗涤烘干得到RuO2负载碘掺杂的PEDOT纳米线粉末。将制备的粉体用PVDF作为粘结剂涂覆在PET膜上,再均匀涂覆一层PVA/H3PO4凝胶电解质,剪成大小相同的2个5cm×8cm片材,分别作为正负电极,待两个电极上面的电解质处于半干状态时,将2个电极面对面贴在一起,烘干得到全固态对称型超级电容器,比容量为535Fg-1。
实施例3
将0.08mol/L EDOT单体溶于50mL去离子水中,加入30gL-1KI和5gL-1RuI3,再加入0.01mol/L十二烷基硫酸钾超声搅拌溶解;将2mol/L过硫酸钾溶解在另一份50mL去离子水中,缓慢加入第一份溶液中,加入过程中持续搅拌,室温静置反应12小时后得到沉淀,经过滤洗涤烘干得到RuO2负载碘掺杂的PEDOT纳米线粉末。将制备的粉体用PVDF作为粘结剂涂覆在PET膜上,再均匀涂覆一层PVA/H3PO4凝胶电解质,剪成大小相同的2个5cm×8cm片材,分别作为正负电极,待两个电极上面的电解质处于半干状态时,将2个电极面对面贴在一起,烘干得到全固态对称型超级电容器,比容量为510Fg-1。
Claims (6)
1.一种RuO2负载PEDOT纳米线的合成方法,其特征在于,包括以下步骤:将EDOT单体溶于去离子水中,加入KI和RuI3,再加入模板剂,超声搅拌溶解;将引发剂溶解在另一份去离子水中,缓慢加入第一份溶液中,加入过程中持续搅拌,室温~40℃静置反应12~24小时后得到沉淀,经过滤洗涤烘干得到RuO2负载碘掺杂的PEDOT纳米线粉末。
2.根据权利要求1所述一种RuO2负载PEDOT纳米线的合成方法,其特征在于:所述EDOT单体在最终反应溶液中的浓度为0.02~0.05mol/L;模板剂为十二烷基硫酸钠、十二烷基硫酸钾、十二烷基苯磺酸钠、十二烷基苯磺酸钾中的一种或其组合,最终反应溶液中的浓度为0.005mol/L~0.01mol/L。
3.根据权利要求1所述一种RuO2负载PEDOT纳米线的合成方法,其特征在于:所述碘化钾在最终反应溶液中的浓度为10~20gL-1,RuI3在最终反应溶液中的浓度为1~5gL-1。
4.根据权利要求1所述一种RuO2负载PEDOT纳米线的合成方法,其特征在于:所述引发剂包括过硫酸铵、过硫酸钾、过硫酸钠中的一种,浓度为0.8~1.2mol/L。
5.根据权利要求1所述一种RuO2负载PEDOT纳米线的合成方法,其特征在于:所述的洗涤是用去离子水和甲醇交替洗涤,每次洗涤后采用离心机沉淀或抽滤设备进行过滤,过滤产物重新在去离子水或乙醇中分散,反复过滤直到滤液pH值为7,最后一次用乙醇洗涤以方便干燥;所述的干燥是在50~80℃真空烘箱中烘干,真空干燥条件为真空度<133Pa。
6.一种如权利要求1~5任意一项所述的RuO2负载PEDOT纳米线的合成方法所制备的RuO2负载PEDOT纳米线。
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