Abstract ZnO nanorods and nanosheets were synthesized via a facile hydrothermal route, and their gas sensing properties were tested to figure out the effect of surface morphologies on gas sensing performance. It was surprisely found that the ZnO nanorods exhibit quicker response and recovery speed towards ethanol, which may be ascribed to the better conductivity and lower potential barrier, whereas the nanosheets display larger ethanol gas response owing to its higher specific surface area.

中文翻译：

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对 ZnO 纳米棒和纳米片的气敏特性的新见解

摘要 通过简便的水热途径合成了ZnO纳米棒和纳米片，并对其气敏性能进行了测试，以了解表面形貌对气敏性能的影响。令人惊讶地发现，ZnO 纳米棒对乙醇表现出更快的响应和恢复速度，这可能归因于更好的导电性和更低的势垒，而纳米片由于其更高的比表面积而表现出更大的乙醇气体响应。