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Liu N, Wang R, Gao S, Zhang R, Fan F, Ma Y, Luo X, Ding D, Wu W. High-Performance Piezo-Electrocatalytic Sensing of Ascorbic Acid with Nanostructured Wurtzite Zinc Oxide. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2105697. [PMID: 34935214 DOI: 10.1002/adma.202105697] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/26/2021] [Indexed: 06/14/2023]
Abstract
Nanostructured piezoelectric semiconductors offer unprecedented opportunities for high-performance sensing in numerous catalytic processes of biomedical, pharmaceutical, and agricultural interests, leveraging piezocatalysis that enhances the catalytic efficiency with the strain-induced piezoelectric field. Here, a cost-efficient, high-performance piezo-electrocatalytic sensor for detecting l-ascorbic acid (AA), a critical chemical for many organisms, metabolic processes, and medical treatments, is designed and demonstrated. Zinc oxide (ZnO) nanorods and nanosheets are prepared to characterize and compare their efficacy for the piezo-electrocatalysis of AA. The electrocatalytic efficacy of AA is significantly boosted by the piezoelectric polarization induced in the nanostructured semiconducting ZnO catalysts. The charge transfer between the strained ZnO nanostructures and AA is elucidated to reveal the mechanism for the related piezo-electrocatalytic process. The low-temperature synthesis of high-quality ZnO nanostructures allows low-cost, scalable production, and integration directly into wearable electrocatalytic sensors whose performance can be boosted by otherwise wasted mechanical energy from the working environment, for example, human-generated mechanical signals.
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Affiliation(s)
- Nianzu Liu
- School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Ruoxing Wang
- School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Flex Laboratory, Purdue University, West Lafayette, IN, 47907, USA
| | - Shengjie Gao
- School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Flex Laboratory, Purdue University, West Lafayette, IN, 47907, USA
| | - Ruifang Zhang
- School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Flex Laboratory, Purdue University, West Lafayette, IN, 47907, USA
| | - Fengru Fan
- School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yihui Ma
- School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Xiliang Luo
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Dong Ding
- Energy & Environment Science and Technology, Idaho National Laboratory, Idaho Falls, ID, 83415, USA
| | - Wenzhuo Wu
- School of Industrial Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Flex Laboratory, Purdue University, West Lafayette, IN, 47907, USA
- Birck Nanotechnology Center, Purdue University, West Lafayette, ID, 47907, USA
- Regenstrief Center for Healthcare Engineering, West Lafayette, ID, 47907, USA
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