Pulsed-Laser Deposition of Nanostructured Iron Oxide Catalysts for Efficient Water Oxidation

Abstract

Amorphous iron oxide nanoparticles were synthesized by pulsed-laser deposition (PLD) for functionalization of indium-tin oxide surfaces, resulting in electrodes capable of efficient catalysis in water oxidation. These electrodes, based on earth-abundant and nonhazardous iron metal, are able to sustain high current densities (up to 20 mA/cm2) at reasonably low applied potential (1.64 V at pH 11.8 vs reversible hydrogen electrode) for more than 1 h when employed as anodes for electrochemical water oxidation. The good catalytic performance proves the validity of PLD as a method to prepare nanostructured solid-state materials for catalysis, enabling control over critical properties such as surface coverage and morphology.

Pt/C–LiCoO2composites with ultralow Pt loadings as synergistic bifunctional electrocatalysts for oxygen reduction and evolution reactions

“…Along with the intensive research in this scope, many transition metal oxides have been studied as OER electrocatalysts in recent years, such as single-phase oxide, perovskitetype and spinel-type catalysts. [20][21][22][23][24][25][26][27] LiCoO 2 , one of the most wellknown cathode materials for lithium-ion batteries, 28 has recently been proved to be an excellent electrocatalyst for the OER in alkaline media. [29][30][31][32][33][34] Furthermore, when LiCoO 2 was chemically delithiated to form Li 1Àx CoO 2 or developed with some particular microstructure (e.g.…”

Structure versus properties inα-Fe2O3nanowires and nanoblades

“…Hematite (α-Fe 2 O 3 ) has been widely studied because of its nontoxicity, low cost, high stability under ambient conditions, and multifunctionality [8]. Hematite has been intensively investigated for applications in lithium-ion batteries [9,10], sensors [11,12], catalysts [13] and magnetic devices [14]. The performance of α-Fe 2 O 3 is greatly influenced by its dimensionality, morphology, and microstructure.…”

Self-Assembled Hierarchical Nanostructures for High-Efficiency Porous Photonic Crystals

“…Moreover, as PLD is a single-step, low thermal budget technique; it is compatible with a wide variety of substrates, including plastic or biological materials. 36,37 …”