文献类型：期刊文献

英文题名：Interfacial stress decoupling enables stable palladium-based hydrogen sensing

作者：Gao, Rui[1,2,3];Zhang, Guozhu[1,2,3];Wang, Xiaoyuan[1,2,3];Xu, Yujing[1,2,3];Zhang, Chao[1,2,3];Li, Linfeng[1,2,3];Wang, Zeyu[1,2,3];Zhang, Bowei[1,2,3];Nagashima, Kazuki[4,5];Yanagida, Takeshi[6,7];Xuan, Fu-Zhen[1,2,3]

机构：[1]Shanghai Key Lab Intelligent Sensing & Detect Tech, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China;[3]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety Minist Educ, Shanghai, Peoples R China;[4]Hokkaido Univ, Grad Sch Chem Sci & Engn, Sapporo, Hokkaido, Japan;[5]Hokkaido Univ, Res Inst Elect Sci, Sapporo, Hokkaido, Japan;[6]Univ Tokyo, Grad Sch Engn, Dept Appl Chem, Bunkyo, Tokyo, Japan;[7]Kyushu Univ, Inst Mat Chem & Engn, Kasuga, Fukuoka, Japan

年份：2026

卷号：17

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001721723200009)】；

基金：G.Z. acknowledges the National Natural Science Foundation of China (No. 52375148), Natural Science Foundation of Shanghai (No. 23ZR1417000), and the Sakura Science Exchange Program in Japan Science and Technology Agency (JST) (No. S2024F0200227). F.-Z.X. thanks the Science Fund for Creative Research Groups of the National Natural Science Foundation of China (No.52321002). The authors are grateful to Prof. Fuwei Zhuge at Huazhong University of Science and Technology the insightful discussion, and to Mr. Ke Chen and Miss Lanyu Ma for their assistance with additional experiments during the revision process.

语种：英文

摘要：Interfacial adhesion between the sensing layer and supporting substrate critically governs the long-term stability of electrical molecular sensors. However, achieving a robust heterointerface remains challenging due to the intrinsic lattice mismatch induces localized stress, which is further exacerbated by cyclic interactions between the sensing film and gas analytes. Here, we introduce a floating-structure palladium hydrogen (H2) sensor enabled by interfacial stress decoupling through a dithiol-based self-assembled monolayer (SAM). This interfacial layer acts as a molecular bridge between the palladium sensing layer and the substrate electrode, forming a dual-interface architecture that simultaneously mitigates the interfacial stress and suppresses the substrate clamping effects, thereby accelerating H2 absorption kinetics. The resulting sensor demonstrates a stable and cyclable H2 detection at concentrations up to 4 vol%, and an ultrasensitive detection limit of 1 ppm at room temperature. Moreover, we realize wafer-scale fabrication and integration of the sensor into a portable platform for real-time hydrogen leak detection. This interfacial stress-engineering approach provides a general route toward durable and high-performance molecular sensor.