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CATALYSIS COMMUNICATIONS · 2015 · IF 3.699

Thermocatalytic deterioration of polymeric films with heat-sensitive S/BiOCl catalyst through naturally ambient-temperature excitation

Feng Ding,Sizhao Zhang,Xuegang Luo,Xiaoyan Lin

A novel S/BiOCl thermocatalyst in response to heat excitation was successfully synthesized by a one-step method and then added into polymeric matrix to give corresponding films. The results obtained show that the surfaces of as-prepared films with S/BiOCl were truly degraded via thermocatalytic reactions at ambient conditions. The average molecular weights of experimental films have fallen dramatically, comparing to the comparisons. In addition, the changes of chemical groups were simultaneously observed in the process. Thus this thermocatalytic process maybe a very fascinating route to come true the degradation of polymeric films with lower temperature triggered.

研究领域: 材料科学 · 高分子化学 · 环境功能材料 · 催化化学 · 纳米材料

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Advanced Intelligent Systems · 2019 ·Vol. 1 ·期 3 ·1900022 · IF 0

Solution-Processed Polymer Thin-Film Memristors with an Electrochromic Feature and Frequency-Dependent Synaptic Plasticity

Yang Feng,Xu Gao,Ya-Nan Zhong,Jia-Ling Wu,Jian-Long Xu,Sui-Dong Wang

Emerging organic synaptic devices are promising in exploring soft and biocompatible neuromorphic computing systems. By means of a simple and low-cost solution process, the polymer thin-film memristors are designed and characterized. The polymer memristors have a bilayer structure composed of an ion-rich semiconducting layer and an ion-collecting conducting layer, where the ion redistribution depending on device operation history has an impact on carrier concentration and results in the memristive characteristics. A visible electrochromic feature is observed during the electrical measurements, supporting the proposed Li + ion drift/diffusion mechanism. The polymer memristors show the continuous and reversible conductivity tuning with a temporary memory effect, which enables the successful emulation of the frequency-dependent synaptic plasticity. The polymer thin-film memristors may offer a strategy for developing building blocks of organic neuromorphic circuits.

研究领域: 生物电子学 · 神经形态工程 · 有机电子学 · 分子器件 · 生物医学工程

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Thermocatalytic deterioration of polymeric films with heat-sensitive S/BiOCl catalyst through naturally ambient-temperature excitation

Solution-Processed Polymer Thin-Film Memristors with an Electrochromic Feature and Frequency-Dependent Synaptic Plasticity