Atomically embedded Cu2O nanoparticles on nano-size LTA realize the electrochemical GOR in the blood environment

Xinyu Zhu, Qianqian Bian, Yifeng E, Zhuozhe Li, Xiaoxia Zhang, Naiyue Zhang, Peng Chen, Li Li and Kun Qian

Renewable Energy, 2025, vol. 250, issue C

Abstract: Direct glucose alkaline fuel cell (DGAFC) is an efficient energy conversion device that can oxidize the glucose in alkaline electrolytes. The nanosized DGAFC meets well with the desire for non-drug hypoglycemic in the safe treatment of diabetes while a novel catalyst could work in a blood environment. The novel glucose catalyst Cu2O/LTA (Cu2O/Linda A structured zeolite) is designed in the blood sugar environment and as-synthesized in a one-pot reaction under hydrothermal conditions. The Cu2O nanoparticles are generated, dispersed, and restricted in the nanosized opening windows of rigid zeolitic pore channels. The nano-size Cu2O/LTA presents high electro-catalytical activity with a Tafel slope of 125.56 mV dec−1, a current density of 29.39 mA cm−2 and a power density of 411.5 W m−2. The nano-size Cu2O/LTA GCE retains about 98.3 % of its initial current density after the 12-h durability test, which is higher than noble metal glucose catalysts and conventional commercial Pt/C. This excellent glucose oxidation performance is attributed to the synergistic effects of the LTA-structured zeolite nanoscale carrier and the expanded nanoscale Cu2O particles. This work supplies some inspiration for non-drug hypoglycemic with commercially available, easily prepared, non-precious metal nano-catalysts.

Keywords: Cu2O LTA nanostructure; Non-drug hypoglycemic; Glucose oxidation reaction; Glucose fuel cell; Electrochemical catalyst (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:250:y:2025:i:c:s0960148125009681

DOI: 10.1016/j.renene.2025.123306

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