Issue 38, 2024

Photo-nanozyme coupling catalyzes glucose oxidation for high-performance enzymatic biofuel cells

Abstract

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.

Graphical abstract: Photo-nanozyme coupling catalyzes glucose oxidation for high-performance enzymatic biofuel cells

Supplementary files

Transparent peer review

To support increased transparency, we offer authors the option to publish the peer review history alongside their article.

View this article’s peer review history

Article information

Article type
Paper
Submitted
05 7月 2024
Accepted
25 8月 2024
First published
29 8月 2024

J. Mater. Chem. A, 2024,12, 25784-25790

Photo-nanozyme coupling catalyzes glucose oxidation for high-performance enzymatic biofuel cells

D. Hu, Q. Su, Y. Gao, J. Zhang, L. Wang and J. Zhu, J. Mater. Chem. A, 2024, 12, 25784 DOI: 10.1039/D4TA04675G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements