Fast and selective room-temperature hydrogen sensing of oxygen-deficient orthorhombic Nb₂O₅ nanobelts.

ABSTRACT: The increasing demand for hydrogen as a clean and renewable energy source necessitates the development of efficient and reliable hydrogen sensing technologies. This study presents the preparation of oxygen-deficient orthorhombic Nb₂O₅ nanobelts for room-temperature chemiresistive hydrogen sensing. The nanobelts were synthesized by converting the H₃ONb₃O₈ nanobelts into orthorhombic Nb₂O₅ through a calcination-based topochemical transformation process. The content of oxygen vacancy defects in the nanobelts was effectively modified by post-annealing treatments, without introducing undesirable phase transition. The results revealed that the hydrogen sensing performance of Nb₂O₅ nanobelts is clos

SUBMITTER: Yang P 

PROVIDER: S-EPMC12012606 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature