<![CDATA[Controllable preparation of graphene/MnO <ce:inf loc='post'>2</ce:inf>/Co <ce:inf loc='post'>3</ce:inf>O <ce:inf loc='post'>4</ce:inf> for supercapacitors]]>
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2/Co 3O 4 for supercapacitors]]>

机译:<![CDATA [图形/ MNO的可控预补贴 2 / CE:INF LOC =“POST”> 3 O <以下是:INF Place =“post”> 4 用于超级电容器]]]>

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AbstractGraphene was successfully prepared using LLDPE (Linear Low-Density Polyethylene) plastic particles as carbon source via a CVD process, and then combined with MnO2/Co3O4composite prefabricated in our experiment to test the electrochemical performance for supercapacitors. MnO2/Co3O4has the largest CV area and suggests a larger capacitance potential. The discharge curve of MnO2/Co3O4is close to that of MnO2, indicating that the capacitance of MnO2/Co3O4is dominated by MnO2, and the discharge of Graphene/MnO2/Co3O4is slow at high voltage. The addition of graphene improves specific capacitance of MnO2/Co3O4electrode materials, reaching 502.3?F/g at current density of 1 A/g. After 1000 charge/discharge cycles, the capacitance of all the materials synthesized in this study remains over 94.7% at the current density of 10 A/g, suggesting great potential for supercapacitors and one can choose the proper material according to various applications.Highlights?Graphene was prepared using LLDPE via CVD method.?The specific capacitance of MnO2/Co3O4is close to 500?F at 1?A/g.?Graphene improves specific capacitance of MnO2/Co3O4, reaching 502.3?F/g at 1 A/g.?The capacitance retention can reach over 94% after 1000 cycles at 10?A/g.]]>
机译:<![CDATA [ 抽象 使用LLDPE(直线低密度聚乙烯)塑料颗粒作为碳源通过CVD工艺成功制备石墨烯,然后将MnO 2 / CO 3 O 4 在我们的实验中预制的复合材料,以测试超级电容器的电化学性能。 mno 2 / co <​​ce:inf loc =“post”> 3 o 4 < / CE:INF>具有最大的CV区域,并表明电容较大。 MnO 2 / CO 3 O 4 接近MNO 2 ,表示MNO 2的电容 / co <​​ce:inf loc =“post”> 3 o 4 由mno 2 ,以及石墨烯/ MNO的放电 2 / CO 3 O 4 在高压下慢。石墨烯的添加改善了MnO 2 / CO 3 O 4 电极材料,达到502.3≤F/ g,电流密度为1 a / g。在1000充电/放电循环之后,本研究合成的所有材料的电容在10 A / g的电流密度下保持超过94.7%,表明超级电容器的巨大潜力,并且可以根据各种应用选择适当的材料。 亮点 使用LLDPE通过CVD制备石墨烯方法。 MnO 2> 2 / CO 3 O 4 接近500?F处为1?A / G. Graphene提高了Mno 2 / CO 3 O 4 ,达到502.3?f / g在1 a / g。 电容保持在10次循环后的电容保留超过94%?a / g。 ]]>

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