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

2014 ◽  
Vol 6 (9) ◽  
pp. 6186-6190 ◽  
Author(s):  
Michele Orlandi ◽  
Stefano Caramori ◽  
Federico Ronconi ◽  
Carlo A. Bignozzi ◽  
Zakaria El Koura ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Pulsed Laser Deposition ◽  
Water Oxidation ◽  
Pulsed Laser ◽  
Oxide Catalysts ◽  
Laser Deposition

scholarly journals Morphological and Elemental Investigations on Co–Fe–B–O Thin Films Deposited by Pulsed Laser Deposition for Alkaline Water Oxidation: Charge Exchange Efficiency as the Prevailing Factor in Comparison with the Adsorption Process

2021 ◽  
Author(s):  
Y. Popat ◽  
M. Orlandi ◽  
S. Gupta ◽  
N. Bazzanella ◽  
S. Pillai ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Water Oxidation ◽  
Active Sites ◽  
High Surface ◽  
Pulsed Laser ◽  
Industrial Applications ◽  
Active Species ◽  
Laser Deposition ◽  
Core Shell ◽  
Adsorption Sites

Abstract Mixed transition-metals oxide electrocatalysts have shown huge potential for electrochemical water oxidation due to their earth abundance, low cost and excellent electrocatalytic activity. Here we present Co–Fe–B–O coatings as oxygen evolution catalyst synthesized by Pulsed Laser Deposition (PLD) which provided flexibility to investigate the effect of morphology and structural transformation on the catalytic activity. As an unusual behaviour, nanomorphology of 3D-urchin-like particles assembled with crystallized CoFe2O4 nanowires, acquiring high surface area, displayed inferior performance as compared to core–shell particles with partially crystalline shell containing boron. The best electrochemical activity towards water oxidation in alkaline medium with an overpotential of 315 mV at 10 mA/cm2 along with a Tafel slope of 31.5 mV/dec was recorded with core–shell particle morphology. Systematic comparison with control samples highlighted the role of all the elements, with Co being the active element, boron prevents the complete oxidation of Co to form Co3+ active species (CoOOH), while Fe assists in reducing Co3+ to Co2+ so that these species are regenerated in the successive cycles. Thorough observation of results also indicates that the activity of the active sites play a dominating role in determining the performance of the electrocatalyst over the number of adsorption sites. The synthesized Co–Fe–B–O coatings displayed good stability and recyclability thereby showcasing potential for industrial applications. Graphic Abstract

Impact of lattice defects on water oxidation properties in SnNb2O6 photoanode prepared by pulsed-laser deposition method

2019 ◽  
Vol 126 (9) ◽  
pp. 094901
Author(s):  
Hiroki Matsuo ◽  
Masao Katayama ◽  
Tsutomu Minegishi ◽  
Taro Yamada ◽  
Akihiko Kudo ◽  
...  
Keyword(s):  
Pulsed Laser Deposition ◽  
Water Oxidation ◽  
Pulsed Laser ◽  
Lattice Defects ◽  
Laser Deposition ◽  
Deposition Method ◽  
Oxidation Properties

Iron Oxide Thin Films Grown by Pulsed Laser Deposition

2005 ◽  
pp. 457-461
Author(s):  
M.L. Paramés ◽  
N. Popovici ◽  
P.M. Sousa ◽  
A.J. Silvestre ◽  
O. Conde
Keyword(s):  
Thin Films ◽  
Iron Oxide ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Oxide Thin Films

Properties of Iron Oxide Films Grown by Pulsed Laser Deposition

1994 ◽  
Vol 341 ◽  
Author(s):  
H. S. Choi ◽  
J. S. Ahn ◽  
William Jo ◽  
T. W. Noh ◽  
S. H. Chun ◽  
...  
Keyword(s):  
Thin Films ◽  
Iron Oxide ◽  
Pulsed Laser Deposition ◽  
Oxide Films ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Phase Identification ◽  
Electrical And Magnetic Properties ◽  
Iron Oxide Films ◽  
Xrd Techniques

AbstractEpitaxial magnetite (Fe3O4) thin films have been grown on MgO(001) substrates by pulsed laser deposition. The films have characteristics of the “Verwey transition”: the electric conductivity decreases by about one order of magnitude and the magnetization curve shows anomaly at the transition temperature, i.e. about 125 K. Effects of annealing the Fe3O4 thin films at various oxygen partial pressures have also been investigated. Phase identification was made using XRD techniques and infrared reflectivity measurements. The surface morphologies were studied by SEM and AFM. Under an oxidizing atmosphere, the Fe3O4 phase is transformed mainly into α-Fe2O3, and this transformation is accompanied by development of needle-like structures along <110> directions of MgO substrate. It is also found that electrical and magnetic properties of the iron oxide films are changed significantly by the annealing process.

Structural and Optical Properties of Epitaxial Iron Oxide Thin Films Deposited by Pulsed Laser Deposition

2020 ◽  
Vol 76 (6) ◽  
pp. 512-516
Author(s):  
Jin Eun Heo ◽  
Taeyang Choi ◽  
Seo Hyoung Chang ◽  
Jung Hyeon Jeong ◽  
Byung Chun Choi ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Iron Oxide ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Oxide Thin Films ◽  
Structural And Optical Properties

Large third-order optical nonlinearities in iron oxide thin films synthesized by reactive pulsed laser deposition

2016 ◽  
Vol 60 ◽  
pp. 123-127 ◽  
Author(s):  
S.A. Mulenko ◽  
V.I. Rudenko ◽  
V.R. Liakhovetskyi ◽  
A.M. Brodin ◽  
N. Stefan
Keyword(s):  
Thin Films ◽  
Iron Oxide ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Optical Nonlinearities ◽  
Oxide Thin Films ◽  
Third Order

Pulsed laser deposition of iron oxide and ferrite films

1988 ◽  
Vol 64 (10) ◽  
pp. 5647-5649 ◽  
Author(s):  
Sushama Joshi ◽  
Rashmi Nawathey ◽  
V. N. Koinkar ◽  
V. P. Godbole ◽  
S. M. Chaudhari ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Ferrite Films

Pulsed laser deposition of iron oxide films

2002 ◽  
Vol 91 (7) ◽  
pp. 4453-4456 ◽  
Author(s):  
T. Tepper ◽  
C. A. Ross
Keyword(s):  
Iron Oxide ◽  
Pulsed Laser Deposition ◽  
Oxide Films ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Iron Oxide Films
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