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Ultrasensitive Indium Phosphide Nanomembrane Wearable Gas Sensors

Energy & Environmental Materials 2024年第6期7卷 209-217页

作者： Shiyu Wei Tuomas Haggren Zhe Li Hark Hoe Tan Chennupati Jagadish antonio tricoli Lan Fu Department of Electronic Materials Engineering Australian Research Council Centre of Excellence for Transformative Meta-Optical SystemsResearch School of PhysicsThe Australian National UniversityCanberraACT 2600Australia Nanotechnology Research Laboratory Research School of ChemistryCollege of ScienceThe Australian National UniversityCanberraACT 2600Australia Nanotechnology Research Laboratory Faculty of EngineeringThe University of SydneyCamperdownNSW 2006Australia

Air quality is deteriorating due to continuing urbanization and *** particular,nitrogen dioxide(NO_(2))is a biologically and environmentally hazardous byproduct from fuel combustion that is ubiquitous in urban *** address this issue,we report a high-performance flexible indium phosphide nanomembrane NO_(2)sensor for real-time air quality *** ultralow limit of detection of~200 ppt and a fast response have been achieved with this device by optimizing the film thickness and doping concentration during indium phosphide *** varying the film thickness,a dynamic range of values for NO_(2)detection from parts per trillion(ppt)to parts per million(ppm)level have also been demonstrated under low bias voltage and at room temperature without additional light *** measurements show an adequately stable response after repeated ***-site testing of the sensor in a residential kitchen shows that NO_(2)concentration from the gas stove emission could exceed the NO_(2)Time Weighted Average limit,i.e.,200 ppb,highlighting the significance of real-time ***,the indium phosphide nanomembrane sensor element cost is estimated at<0.1 US$due to the miniatured size,nanoscale thickness,and ease of *** these superior performance characteristics,low cost,and real-world applicability,our indium phosphide nanomembrane sensors offer a promising solution for a variety of air quality monitoring applications.

关键词： air quality monitoring flexible III-V semiconductors nanofilm ultrathin

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Flame spray pyrolysis for the one-step fabrication of transition metal oxide films:Recent progress in electrochemical and photoelectrochemical water splitting

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Chinese Chemical Letters 2020年第3期31卷 601-604页

作者： Hongjun Chen Hemant Kumar Mulmudi antonio tricoli Nanotechnology Research Laboratory Research School of ElectricalEnergy and Materials EngineeringCollege of Engineering and Computer ScienceAustralian National UniversityCanberra 2601Australia

Developing large scale deposition techniques to fabricate thin porous films with suitable opto-electro nic properties for water catalysis is a necessity to mitigate climate change and have a sustainable *** this review,flame spray pyrolysis(FSP)technique,a rapid and scalable methodology to synthesize nanostructured transitional metal oxide films with designed functionalities,is firstly ***,applications in electrochemical(EC)and photoelectrochemical(PEC)water splitting for the production of hydrogen fuel is also *** high combustion temperature and the aggregation of flame aerosol ensure that the FSP-made films possess high crystallinity,tunable porosity and high surface areas,making this method suitable either as catalysts for EC water splitting or as efficient semiconductor materials for PEC water ***,a perspective on the next generation FSP engineered films with potential applications in energy storage and conversion is described.

关键词： Scalable One-step Flame-spray pyrolysis Transition metal oxide Electrochemical Photoelectrochemical Water splitting

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Preface to special issue on catalysing production of renewable fuels

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Chinese Journal of Catalysis 2022年第5期43卷 1193-1193页

作者： Hongwei Huang Tianyi Ma antonio tricoli School of Materials Science and Technology China University of Geosciences(Beijing) Centre for Translational Atomaterials Swinburne University of TechnologySchool of ScienceRMIT UniversityAustralia Nanotechnology Research Laboratory Faculty of EngineeringUniversity of SydneyAustralia

Development of renewable fuels,such as hydrogen,liquid ammonia,is of great significance for relieving the pressure of anthropogenic CO_(2)emissions and depletion of traditional fossil energy *** the past two decades,heterogeneous catalysis has received increased attention as an efficient route for the production of renewable *** heterogeneous catalytic reactions include photocatalysis,electrocatalysis,photoelectrocatalysis,thermalcatalysis,photothermalcatalysis as well as some emerging catalytic pathways,*** catalytic reaction has its own *** instance,electrocatalysis has the characteristic of high efficiency,photocatalysis is featured by the sustainability and low cost,thermalcatalysis generally shows a high practicability and scalability for industrialization,and coupled‐catalysis can integrate the merits of diversified catalytic reactions,achieving a more efficient catalytic performance for production of renewable *** new catalytic reactions is anticipated to enrich the selection of possible catalytic system,and to advance the understanding of heterogeneous catalytic mechanism.

关键词： mechanism. catalysis instance

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