明升体育

明升体育潘凯研究员团队在《Advanced Functional Materials》上发表研究论文

发文时间:2020-09-08

明升体育jinri,mingshengtiyupankaiyanjiuyuanzaiguojiquanweiqikan《advanced functional materials》(if= 16.836)shangfabiaoletiwei“1d/2d nanomaterials synergistic, compressible, and response rapidly 3d graphene aerogel for piezoresistive sensor”deyanjiulunwen,shejileyizhongxinxingdejuyou3dhuliandefencengweiguanjiegoudenamixianweizengqiangshimoxiqiningjiao。

明升体育shimoxiqiningjiaotongchangtongguoyanghuashimoxidehaiyuanyulengdongganzaozhibeide。danshi,yanghuashimoxizaizhibeiguochengzhongrongyifashengtuanju,shideqiningjiaokongxijiegoubuwending,zaijiaodaxingbianshiyongshirongyifashengtanta,xianzhiqizaiyazuchuanganqilingyudeyingyong。muqian,tongguokongzhishimoxiqiningjiaodekongxijiegou、duishimoxijinxinghuaxuegaixing、yinrunamicailiaodengduozhongfangfalaitigaoshimoxiqiningjiaodechuanganxingneng。ciwai,yanjiubiaoming,butongnamicailiaodeyinrukexietongtigaoshimoxiqiningjiaodeganyingxingnenghelixuexingneng。yinci,zhibeijuyoulianghaolixuexingnenghechuanganxingnengdeshimoxiqiningjiaochuanganqirengranshiyigetiaozhan。

在该研究中,研究人员采用碱处理后的PAN纳米纤维(aPAN)与氧化石墨烯(GO)为前驱体,通过水热还原的方式成功制备了一种纳米纤维增强石墨烯气凝胶(aPANF/GA)。该气凝胶具有三维互联的分层结构,表面处理过的PAN纳米纤维作为支撑支架贯穿整个石墨烯网络。在还原氧化石墨烯(rGO)薄片之间嵌入良好的aPAN纳米纤维作为支架,使气凝胶的机械强度达到43.54 kPa。此外,由于aPAN纳米纤维增强的rGO薄片不仅形成了薄片层,还形成了相邻的壁,可以保持GA气凝胶优异的导电性,因此具有良好的传感性能。这种纳米纤维增强石墨烯气凝胶具有28.62 kPa-1的高压阻灵敏度和宽范围(0-14 kPa)的线性灵敏度。当其作为压阻传感器时,压缩弹性很好,在3Pa下的响应和恢复时间分别快约37和14ms,结构稳定性和传感耐久性好,经过2600次循环后,在20%压缩应变下,电流信号值为初始信号值的91.57%。此外,组装好的传感器可以监测人体喉部、腕部脉搏、手指、手腕、膝关节的实时运动情况,表现出良好的灵敏度。这些优异的性能在可穿戴设备和改善人机交互领域有很大的应用潜力。

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明升体育benwendiyizuozheweimingshengtiyuzhuceguanwangyanjiushengcaoxueyuan,pankaiyanjiuyuanweibenwendetongxunzuozhe。zheixiangyanjiudedaoleshandongshengzhongdakejichuangxinxiangmu(2019jzzy020218)dezhichi。

wenxianxinxi:xueyuan cao, juan zhang, siwei chen, russell john varley, and kai pan. 1d/2d nanomaterials synergistic, compressible, and response rapidly 3d graphene aerogel for piezoresistive sensor[j]. advanced functional materials, 2020:2003618.

明升体育quanwenlianjie:http://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202003618