Pt@NiO core–shell nanostructure for a hydrogen gas sensor

Graphene-Based Hydrogen Gas Sensors: A Review

“…This sensing idea spread quickly in the field of LPG sensing, and for hydrogen as well [22]. Over the past decades, the general principle of n-type SnO2 semiconductor sensors for hydrogen and other gases was broadened to other metal oxides, like SnO, ZnO, V2O3, Fe2O3, Mn2O3, Co3O4,Cr2O3, TiO2, WO3, NiO, In2O3, CuO, SrO, Nb2O5, GeO2, MoO3, La2O3, Ta2O5, Nd2O3, CeO2, and this research direction is very active to this day [23][24][25][26][27][28][29][30][31]. The relatively high operating temperature of even up to…”

“…This sensing idea spread quickly in the field of LPG sensing, and for hydrogen as well [22]. Over the past decades, the general [23][24][25][26][27][28][29][30][31]. The relatively high operating temperature of even up to 300-400 • C was a key negative feature of early SnO 2 -based hydrogen sensors.…”

Advanced development of metal oxide nanomaterials for H2gas sensing applications

“…44 However, the low selectivity, poor stability, and weak durability of the H 2 gas sensors still impede practical applications. [45][46][47][48][49][50][51] Although several reviews related to H 2 gas sensors have been published, one focused on gas chromic H 2 gas sensors, 52 while the others focused on a single or a class of MOx nanomaterials. 53,54 For example, Luo et al 53 and Mirzaei et al 54 discussed the applications of noble-doping MOx nanomaterials in H 2 gas sensing.…”

Advances in Doped ZnO Nanostructures for Gas Sensor

“…After reacting with the target gas, electrons are released back into the material conduction band. [32] In essence, the chemical sensor is the process of adsorption and desorption of the target gas on the sensing material surface. [23] Copyright 2014 Elsevier.…”