journal article·2016-01Open access

Platinum Nanoparticle Loading of Boron Nitride Aerogel and Its Use as a Novel Material for Low‐Power Catalytic Gas Sensing

Anna Harley‐Trochimczyk, Thang Pham, Jiyoung Chang, Ernest Chen, Marcus A. Worsley, Alex Zettl, William Mickelson, Roya Maboudian

Advanced Functional Materials· Volume 26· Issue 3

Abstract

A high‐surface‐area, highly crystalline boron nitride aerogel synthesized with nonhazardous reactants has been loaded with crystalline platinum nanoparticles to form a novel nanomaterial that exhibits many advantages for use in a catalytic gas sensing application. The platinum nanoparticle‐loaded boron nitride aerogel integrated onto a microheater platform allows for calorimetric propane detection. The boron nitride aerogel exhibits thermal stability up to 900 °C and supports disperse platinum nanoparticles, with no sintering observed after 24 h of high‐temperature testing. The high thermal conductivity and low density of the boron nitride aerogel result in an order of magnitude faster response and recovery times (<2 s) than reported on alumina support and allow for 10% duty cycling of the microheater with no loss in sensitivity. The resulting 1.5 mW sensor power consumption is two orders of magnitude less than commercially available catalytic gas sensors and unlocks the potential for wireless, battery‐powered catalytic gas sensing.
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Research context

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Graphene research and applications · ZnO doping and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemical and Biomolecular Engineering University of California at Berkeley Berkeley CA 94720 USA

Department of Physics University of California at Berkeley Materials Sciences Division Lawrence Berkeley National Laboratory Kavli Energy NanoSciences Institute at the University of California at Berkeley and The Lawrence Berkeley National Laboratory Berkeley CA 94720 USA

Physical and Life Science Directorate Lawrence Livermore National Laboratory 7000 East Avenue Livermore CA 94550 USA

Funding

National Science Foundation · NSF Innovation Corps program · NSF Acceleration Innovation Research: Technology Transfer program · UC Lab Fees Research Program · Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy · National Science Foundation Graduate Research Fellowship · Director, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, of the U.S. Department of Energy · Air Force Office of Scientific Research

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