Peer-Reviewed Publication
ACS Sens2026July 10, 2026Journal Article
In Situ Insights into the Formaldehyde Sensing Mechanism of SnO2/NiO: The Critical Role of Lattice Oxygen.
Lin Liu1,2, Yingyi Wang1, Yangbin Sun1,3, Jicong Zhao2, Sujie Qin4, Chenfei Guo1,3, Yifan Li5, Kejie Guan1, Fuqin Sun1, Xiaoshuang Gou1, Cheng Zhang6, Jun Xu1,3, Yang Xia1, Zhengyang Cai7, Xiaowei Wang1, Ting Zhang1,5
1i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu 215123, P. R. China.
2School of Microelectronics and Integrated Circuits, Nantong University, Nantong, Jiangsu 226019, P. R. China.
3Nano Science and Technology Institute, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
4Department of Health and Environmental Sciences, Xi'an Jiaotong-Liverpool University, 111 Ren'ai Road, Suzhou, Jiangsu 215123, P. R. China.
5Nano-X, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences, Suzhou, Jiangsu 215123, P. R. China.
6School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, P. R. China.
7School of Integrated Circuits, Jiangnan University, Wuxi, Jiangsu 214122, P. R. China.
Abstract
Owing to the synergistic effect of hetero-materials and the improvement of the oxygen vacancy (VO) concentration, construction of heterostructural materials represents an effective strategy for developing highly sensitive sensors for trace formaldehyde detection. However, the traditional sensing mechanism neglects the role of lattice oxygen (OLat). Moreover, conventional characterizations often fa…
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