@article{Cheng2025, 
author = {Bingxue Cheng and Xinlin Wang and Shijia Li and Yuhang Li and Toru Murayama and Tamao Ishida and Guangli Xiu and Kenji Iida and Yufan Fu and Yining Wang and Mingyue Lin},
title = {NbO6 octahedra of high-dimensional Nb2O5 boosting H2O2 electrosynthesis for sewage pollutants degradation},
year = {2025},
journal = {Nano Research},
volume = {18},
number = {12},
pages = {94907917},
keywords = {oxygen reduction reaction, hydrogen peroxide, niobium oxide, pollutant degradation},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94907917},
doi = {10.26599/NR.2025.94907917},
abstract = {Two-electron oxygen reduction reaction (2e− ORR) to produce hydrogen peroxide (H2O2) presents an efficient, secure, and sustainable method. However, the competing four-electron pathway produces H2O, yielding low H2O2 selectivity (~ 70%). In this work, a high-dimensional rod-like structure of niobium oxide (Nb2O5-HD) containing NbO6 octahedra was synthesized using a hydrothermal method combined with a calcination strategy. Under 50 mA·cm−2, the Faradaic efficiency (FE) of H2O2 reached 94%, with the H2O2 yield reaching as high as 874 mmol·gcat−1·h−1. After 34 h of operation, FE was still 76%, and the stability is great. In situ Raman spectroscopy analysis and experiments revealed that the NbO6 octahedra on Nb2O5-HD were the key factor for its excellent ORR activity and H2O2 FE. This inspires the development of high-performance ORR transition metal electrocatalysts.}
}