Naked-eye observation of water-forming reaction on palladium etalon:transduction of gas-matter reaction into light-matter interaction  

作　　者：Jongsu Lee Eui-Sang Yu Taehyun Kim In Soo Kim Seok Chung Seung Jae Kwak Won Bo Lee Yusin Pak Yong-Sang Ryu 

机构地区：[1]Sensor System Research Center,Korea Institute of Science and Technology,Seoul 02792,Republic of Korea [2]Department of Electrical and Computer Engineering,Seoul National University,Seoul 08826,Republic of Korea [3]Smart Materials Research Section,Electronics and Telecommunications Research Institute,Daejeon 34129,Republic of Korea [4]Department of Micro/Nano Systems,Korea University,02841 Seoul,Republic of Korea [5]Nanophotonics Research Center,Korea Institute of Science and Technology,Seoul 02792,Republic of Korea [6]School of Mechanical Engineering,Korea University,Seoul 02841,Republic of Korea [7]School of Chemical and Biological Engineering,Seoul National University,Seoul 08826,Republic of Korea [8]Interdisciplinary Program in Precision Public Health,Korea University,Seoul 02481,Republic of Korea [9]School of Biomedical Engineering,Korea University,Seoul 02481,Republic of Korea

出　　处：《PhotoniX》2023年第1期349-363,共15页智汇光学（英文）

基　　金：National Research Foundation of Korea(NRF)grant funded by the Korean government(MSIT)(No.2021R1A2C2009236 and No.2020M3H5A108110413);Y.-S.R.acknowledges support from a grant of the Information and Communications Promotion Fund(ICT promotion fund)through the National IT Industry Promotion Agency(NIPA),and Korea University Grant(K2311801);Y.P acknowledges support from KIST Institutional grants(No.2E32451 and 2V09640).

摘　　要：Palladium is the most prominent material in both scientific and industrial research on gas storage,purification,detection,and catalysis due to its unique properties as a catalyst and hydrogen absorber.Advancing the dynamic optical phenomena of palladium reacting with hydrogen,transduction of the gas-matter reaction into light-matter interaction is attempted to visualize the dynamic surface chemistry and reaction behaviors.The simple geometry of the metal-dielectric-metal structure,Fabry-Perot etalon,is employed for a colorimetric reactor,to display the catalytic reaction of the exposed gas via water-film/bubble formation at the dielectric/palladium interface.The adsorption/desorption behavior and catalytic reaction of hydrogen and oxygen on the palladium surface display highly repeatable and dramatic color changes based on two distinct water formation trends:the foggy effect by water bubbles and the whiteout effect by water film formation.Simulations and experiments demonstrate the robustness of the proposed Fabry-Perot etalon as an excellent platform for monitoring the opto-physical phenomena driven by heterogeneous catalysis.

关 键 词：PALLADIUM Hydrogen Oxygen Fabry-Perot resonators Colorimetric sensors Water-forming reaction 

分 类 号：O64[理学—物理化学]