Fabrication of α-Fe2O3@graphene nanostructures for enhanced gas-sensing property to ethanol

Graphene-based hybrids for chemiresistive gas sensors

“…The other kinds of hybrid are those operated under conditions of heating, in which metal oxides usually dominate the sensing processes [46][47][48][49]. Those hybrids react with gases more like metal-oxide sensors, in which graphene only plays a role in enhancing the conductivity and gas-adsorption capability.…”

Synthesis and Applications of Graphene/Iron(III) Oxide Composites

“…The pH of the solution can affect the morphology of the products to some extent. In order to adjust the solution to pH 10, ammonia solution and CH 3 COONa were added . CH 3 COO − tends to be hydrolyzed to CH 3 COOH and OH − .…”

EFFECT OF TEMPERATURE ON THE STRUCTURE AND PROPERTIES OF Fe2O3/GRAPHENE NANOCOMPOSITES SYNTHESIZED BY HYDROTHERMAL METHOD

“…Among the many methods proposed, most people produced graphene sheets by chemical reduction of exfoliated graphene oxides [11]. Many graphene nanocomposites based on the hybridization with nanoparticles fabricated are of highly versatile in electronics [12], photonics [13], energy storage [14,15], sensors [16], catalysis [17] and bioapplication [18]. Although these exciting results concerning the graphene based materials in these fields, there are still some issues remained for further consideration.…”

“…Among the various transition metal oxides, such as ZnO [19], TiO 2 [20], Fe 3 O 4 [21], CuO [22], SnO 2 [23]; Fe 2 O 3 is one of the most common oxides in the natural world. Due to its low cost, environmental friendliness, chemical stability and nontoxic, Fe 2 O 3 has been extensively studied in lithium batteries [24], catalysis [25], sensors [16], magnetic materials [26], biological and medical fields [27]. It has been differently synthesized dimensional nanostructures (1D), such as nanorods [28], nanobelts [29], nanowires [30], nanotubes [31], porous structures) [32], core-shell structures [33], and so on.…”