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Photo-nanozyme coupling catalyzes glucose oxidation for high-performance enzymatic biofuel cells
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2024-08-29 , DOI: 10.1039/d4ta04675g Dandan Hu , Qiwen Su , Yan Gao , Jian-Rong Zhang , Linlin Wang , Jun-Jie Zhu
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2024-08-29 , DOI: 10.1039/d4ta04675g Dandan Hu , Qiwen Su , Yan Gao , Jian-Rong Zhang , Linlin Wang , Jun-Jie Zhu
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Glucose biofuel cells (GBFCs) are special energy conversion devices using naturally abundant glucose as fuel. However, achieving high power output and stability remains a challenge in existing GBFCs. In this study, we created a photoelectric coupling nanozyme catalyst of Au/BiVO4 with triple synergistic promotion effects: the surface plasmon resonance of Au significantly broadened the photo-absorption region, enhanced the light absorption intensity, and increased the carrier density of BiVO4; furthermore, the outstanding electron transfer capacity of Au accelerated the photoelectron separation from the vacancies in BiVO4, endowing BiVO4 with excellent photo-corrosion resistance; additionally, the three-dimensional structure of BiVO4 provides abundant sites for Au, remarkably improving the loading and catalytic stability of Au. Consequently, the Au/BiVO4 catalytic GBFC can simultaneously convert solar and chemical energy stored in glucose into electrical energy, providing an extraordinarily high power density and open-circuit voltage (575 μW cm−2 and 0.86 V) and working steadily for 20 hours. Altogether, high power output and high stability are achieved in the Au/BiVO4 catalytic GBFC. Thus, this study will significantly propel the development of GBFCs through the innovative application of the photoelectric coupling nanozyme catalytic strategy.
中文翻译:
光纳米酶耦合催化葡萄糖氧化用于高性能酶生物燃料电池
葡萄糖生物燃料电池(GBFC)是一种特殊的能量转换装置,使用天然丰富的葡萄糖作为燃料。然而,实现高功率输出和稳定性仍然是现有 GBFC 的挑战。在本研究中,我们创建了一种具有三重协同促进效应的Au/BiVO 4光电耦合纳米酶催化剂:Au的表面等离子体共振显着拓宽了光吸收区域,增强了光吸收强度,并增加了BiVO 4的载流子密度;此外,Au优异的电子传输能力加速了BiVO 4中空位的光电子分离,使BiVO 4具有优异的耐光腐蚀性能。此外,BiVO 4的三维结构为Au提供了丰富的位点,显着提高了Au的负载量和催化稳定性。因此,Au/BiVO 4催化GBFC可以同时将储存在葡萄糖中的太阳能和化学能转化为电能,提供极高的功率密度和开路电压(575 μW cm -2和0.86 V),并稳定工作20小时。总之,Au/BiVO 4催化 GBFC 实现了高功率输出和高稳定性。因此,本研究将通过光电耦合纳米酶催化策略的创新应用,显着推动GBFC的发展。
更新日期:2024-08-29
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
光纳米酶耦合催化葡萄糖氧化用于高性能酶生物燃料电池
葡萄糖生物燃料电池(GBFC)是一种特殊的能量转换装置,使用天然丰富的葡萄糖作为燃料。然而,实现高功率输出和稳定性仍然是现有 GBFC 的挑战。在本研究中,我们创建了一种具有三重协同促进效应的Au/BiVO 4光电耦合纳米酶催化剂:Au的表面等离子体共振显着拓宽了光吸收区域,增强了光吸收强度,并增加了BiVO 4的载流子密度;此外,Au优异的电子传输能力加速了BiVO 4中空位的光电子分离,使BiVO 4具有优异的耐光腐蚀性能。此外,BiVO 4的三维结构为Au提供了丰富的位点,显着提高了Au的负载量和催化稳定性。因此,Au/BiVO 4催化GBFC可以同时将储存在葡萄糖中的太阳能和化学能转化为电能,提供极高的功率密度和开路电压(575 μW cm -2和0.86 V),并稳定工作20小时。总之,Au/BiVO 4催化 GBFC 实现了高功率输出和高稳定性。因此,本研究将通过光电耦合纳米酶催化策略的创新应用,显着推动GBFC的发展。