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首页> 外文期刊>ACS applied materials & interfaces >M13 Virus-Incorporated Biotemplates on Electrode Surfaces To Nucleate Metal Nanostructures by Electrodeposition
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M13 Virus-Incorporated Biotemplates on Electrode Surfaces To Nucleate Metal Nanostructures by Electrodeposition

机译：M13通过电沉积在电极表面上掺入电极表面上的生物预浸剂

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摘要

We report a virus-incorporated biological template (biotemplate) on electrode surfaces and its use in electrochemical nucleation of metal nanocomposites as an electrocatalytic material for energy applications. The biotemplate was developed with M13 virus (M13) incorporated in a silicate sol gel matrix as a scaffold to nucleate Au-Pt alloy nanostructures by electrodeposition, together with reduced graphene oxide (rGO). The phage when engineered with Y3E peptides could nucleate Au-Pt alloy nanostructures, which ensured adequate packing density, simultaneous stabilization of rGO, and a significantly increased electrochemically active surface area. Investigation of the electrocatalytic activity of the resulting sol-gel composite catalyst toward methanol oxidation in an alkaline medium showed that this: catalyst had mass activity greater than that of the biotemplate containing type M13 and that of monometallic Pt and other Au-Pt nanostructures with different compositions and Supports. M13 in the nanocomposite materials provided a close contact between the Au-Pt alloy nanostructures and rGO. In addition, it facilitated the availability Of an OH--rich environment to the catalyst. As a result, efficient electron transfer and a synergistic catalytic effect of the Au and Pt in the alloy nanostructures toward methanol oxidation were observed. Our nanocomposite synthesis on the novel biotemplate and its application might be useful for developing novel clean and green energygenerating and energy-storage materials.
机译：我们在电极表面上报告了一种病毒掺入的生物模板（Biotemplate）及其在金属纳米复合材料的电化学成核中作为能量应用的电催化材料。 Biotemplate是用M13病毒（M13）开发的，所述M13病毒（M13）掺入硅酸盐溶胶基质中作为支架，通过电沉积与核心Au-Pt合金纳米结构，与氧化盐（RGO）一起。用Y3E肽设计时的噬菌体可以成核Au-Pt合金纳米结构，该纳米结构确保了足够的填充密度，同时稳定RGO，并且显着增加的电化学活性表面积。所得溶胶 - 凝胶复合催化剂对碱介质中甲醇氧化的电催化活性的研究表明：催化剂的质量活性大于含有M13型的Biotemplate的质量活性以及单金属Pt和其他具有不同的Au-Pt纳米结构组成和支持。 M13在纳米复合材料中提供了Au-Pt合金纳米结构和RGO之间的紧密接触。此外，它促进了富含OH的环境的可用性。结果，观察到，高效的电子转移和Au和Pt的协同催化效果在合金纳米结构朝向甲醇氧化。我们对新型生物板的纳米复合材料合成及其应用可能对开发新型清洁和绿色能源和储能材料有用。

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