Premium
Exceptional High‐Performance of Pt‐Based Bimetallic Catalysts for Exclusive Detection of Exhaled Biomarkers
Author(s) -
Kim SangJoon,
Choi SeonJin,
Jang JiSoo,
Cho HeeJin,
Koo WonTae,
Tuller Harry L.,
Kim IlDoo
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201700737
Subject(s) - bimetallic strip , materials science , mesoporous material , catalysis , nanotechnology , breath gas analysis , selectivity , nanoparticle , nanomaterials , metal , chromatography , chemistry , organic chemistry , metallurgy
Achieving an improved understanding of catalyst properties, with ability to predict new catalytic materials, is key to overcoming the inherent limitations of metal oxide based gas sensors associated with rather low sensitivity and selectivity, particularly under highly humid conditions. This study introduces newly designed bimetallic nanoparticles (NPs) employing bimetallic Pt‐based NPs (PtM, where M = Pd, Rh, and Ni) via a protein encapsulating route supported on mesoporous WO 3 nanofibers. These structures demonstrate unprecedented sensing performance for detecting target biomarkers (even at p.p.b. levels) in highly humid exhaled breath. Sensor arrays are further employed to enable pattern recognition capable of discriminating between simulated biomarkers and controlled breath. The results provide a new class of multicomponent catalytic materials, demonstrating potential for achieving reliable breath analysis sensing.