Shrivas Kamlesh, Ghosale Archana, Kant Tushar, Bajpai P K, Shankar Ravi
Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Koni Bilaspur CG India
School of Studies in Chemistry, Pt. Ravishankar Shukla University Raipur 492010 CG India.
RSC Adv. 2019 Jun 6;9(31):17868-17876. doi: 10.1039/c9ra02599e. eCollection 2019 Jun 4.
We report a novel and simple approach for the synthesis of silver nanoparticles capped with inositol (Ag NPs/Ino) by the reduction of silver salt with ascorbic acid under basic conditions. UV-vis, TEM, FTIR and TGA techniques were used to characterize the Ag NPs/Ino to determine the size, shape and surface modification of the NPs. Stable silver nano-ink was prepared in aqueous solution containing 1% PVP (stabilizer) and glycerol (cosolvent) and was used for the direct-writing of a paper electrode with a roller ball-point pen for electrochemical applications. The solvent, stabilizing agents, concentration of NPs (10%), paper substrate, sintering temperature (40 °C) and sintering time (15 min) were optimized to obtain a uniform coating of Ag NPs on the paper substrate. Further, the synthesis and fabrication of ZnO NPs on a paper substrate was put forward to design a touch pad device based on the piezoelectric effect. The preparation of paper based devices suggests a direction for the development of a simple, low cost and compatible approach for the direct-writing of paper based flexible electrodes and electronics for future applications.
我们报道了一种新颖且简单的方法，即在碱性条件下用抗坏血酸还原银盐来合成以肌醇包覆的银纳米颗粒（Ag NPs/Ino）。采用紫外可见光谱、透射电子显微镜、傅里叶变换红外光谱和热重分析技术对Ag NPs/Ino进行表征，以确定纳米颗粒的尺寸、形状和表面改性。在含有1%聚乙烯吡咯烷酮（稳定剂）和甘油（助溶剂）的水溶液中制备了稳定的银纳米墨水，并用于用滚珠圆珠笔直接书写纸质电极以用于电化学应用。对溶剂、稳定剂、纳米颗粒浓度（10%）、纸质基底、烧结温度（40℃）和烧结时间（15分钟）进行了优化，以在纸质基底上获得均匀的Ag NPs涂层。此外，还提出了在纸质基底上合成和制备ZnO纳米颗粒，以基于压电效应设计一种触摸板装置。纸质器件的制备为开发一种简单、低成本且兼容的方法指明了方向，该方法可用于直接书写用于未来应用的纸质柔性电极和电子产品。
