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首页> 外文期刊>RSC Advances >Hierarchical ZnO nanorods/Ni(OH)2 nanoflakes for room-temperature, cheap fabrication of non-enzymatic glucose sensors
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Hierarchical ZnO nanorods/Ni(OH)2 nanoflakes for room-temperature, cheap fabrication of non-enzymatic glucose sensors

机译：等级ZnO纳米棒/ Ni（OH）2室温纳米薄片，非酶促葡萄糖传感器的廉价制作

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摘要

Hierarchical nanostructures composed of Ni(OH) _(2) nanoflakes on ZnO nanorods (NRs) are fabricated by a low-cost, fully chemical method at room-temperature. The morphological features of the ZnO NRs were varied (by changing the chemical bath deposition parameters) in terms of height and lateral size. ZnO NRs provide a large surface area substrate for the pulsed electrodeposition of nanostructured Ni(OH) _(2) . The correlation between the synthetic parameters, the final structure and the electrochemical behavior of Ni(OH) _(2) /ZnO nanostructures is investigated. The enzyme-free oxidation of glucose at the surface of electrodeposited Ni(OH) _(2) is demonstrated in 0.1 M NaOH, revealing that a proper choice of the electrodes fabrication conditions improves the glucose sensitivity up to 1.85 mA cm ~(?2) mM ~(?1) , with a linear detection range of 0.04–2.10 mM. All the samples show a fast response time (less than 1 s), resistance in chloride solution, selectivity in the presence of common interfering electroactive species and excellent long-term stability. All these features, combined with the ease of the fabrication method, make Ni(OH) _(2) /ZnO nanostructures an ideal alternative for inexpensive amperometric glucose sensing applications.
机译：由ZnO纳米棒（NRS）上的Ni（OH）_（2）纳米薄膜组成的等级纳米结构通过室温下通过低成本，完全化学方法制造。在高度和横向尺寸方面，ZnO NRS的形态学特征（通过改变化学浴沉积参数）而变化（通过改变化学浴沉积参数）。 ZnO NRS为纳米结构Ni（OH）_（2）的脉冲电沉积提供大的表面积基板。研究了合成参数，最终结构和Ni（OH）/ ZnO纳米结构的电化学行为之间的相关性。 The enzyme-free oxidation of glucose at the surface of electrodeposited Ni(OH) _(2) is demonstrated in 0.1 M NaOH, revealing that a proper choice of the electrodes fabrication conditions improves the glucose sensitivity up to 1.85 mA cm ~(?2 ）mm〜（？1），线性检测范围为0.04-2.10 mm。所有样品均显示出快速响应时间（小于1秒），氯化物溶液中的耐药性，在存在普通干扰电活性物质和优异的长期稳定性中的选择性。所有这些特征，结合制造方法的易于易于制造，使Ni（OH）_（2）/ ZnO纳米结构是廉价的安培葡萄糖传感应用的理想替代方案。

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