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Confined Synthesis of Silver Wire at the Nanopipette–Liquid/Liquid Interface
Langmuir ( IF 3.7 ) Pub Date : 2021-08-27 , DOI: 10.1021/acs.langmuir.1c01394 Silan Bai 1 , Cheng Liu 2 , Lishi Wang 1
Langmuir ( IF 3.7 ) Pub Date : 2021-08-27 , DOI: 10.1021/acs.langmuir.1c01394 Silan Bai 1 , Cheng Liu 2 , Lishi Wang 1
Affiliation
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Herein, silver wire is synthesized electrochemically within a nanopipette using the nanopipette–liquid/liquid interface. The i–t curve characterizes the growth state of the silver wire. The higher rate of current increase indicates the faster electron transfer and the faster growth of the silver wire; conversely, when the current does not increase significantly with time, i.e., the rate of increase of the current is small, the growth rate of the silver wire is slow. The main driving force for the growth of silver into a linear structure is the theoretical current differential between the water and oil, caused by the concentration difference between the silver nitrate and ferrocene. The growth of the silver wire is also influenced by the shape of the nanopipette. If the diameter of the pipet increases quickly, silver wire tends to produce multibranched structures, while a smaller diameter makes it easier to obtain silver wire with fewer branches due to the confinement effect. This method is also applicable to the synthesis of gold within a nanopipette. The combination of nanopipette and metallic material using a liquid–liquid interface results in a broader application of nanopipettes for nanopore sensors, nanopore electrodes, bipolar electrodes, etc.
中文翻译：
在纳米移液管-液体/液体界面限制合成银线
在此，银线是在纳米移液管内使用纳米移液管-液/液界面电化学合成的。在我-牛逼曲线表征银线的生长状态。电流增加率越高表明电子转移越快，银线生长越快；反之，当电流不随时间显着增加，即电流增加的速率较小时，银线的生长速率较慢。银生长成线性结构的主要驱动力是水和油之间的理论电流差异，这是由硝酸银和二茂铁之间的浓度差异引起的。银线的生长也受纳米吸管形状的影响。如果移液管的直径迅速增加，银线往往会产生多分支结构，而较小的直径由于限制效应更容易获得分支较少的银线。该方法也适用于纳米吸管内金的合成。使用液-液界面的纳米移液管和金属材料的组合导致纳米移液管在纳米孔传感器、纳米孔电极、双极电极等方面的更广泛应用。
更新日期：2021-09-14
中文翻译：
在纳米移液管-液体/液体界面限制合成银线
在此，银线是在纳米移液管内使用纳米移液管-液/液界面电化学合成的。在我-牛逼曲线表征银线的生长状态。电流增加率越高表明电子转移越快，银线生长越快；反之，当电流不随时间显着增加，即电流增加的速率较小时，银线的生长速率较慢。银生长成线性结构的主要驱动力是水和油之间的理论电流差异，这是由硝酸银和二茂铁之间的浓度差异引起的。银线的生长也受纳米吸管形状的影响。如果移液管的直径迅速增加，银线往往会产生多分支结构，而较小的直径由于限制效应更容易获得分支较少的银线。该方法也适用于纳米吸管内金的合成。使用液-液界面的纳米移液管和金属材料的组合导致纳米移液管在纳米孔传感器、纳米孔电极、双极电极等方面的更广泛应用。
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