Morphologically Tunable Fabrication of Hematite Nanostructures for Enhanced Photoelectrochemical Performance February 2023 ECS Journal of Solid State Science and Technology 12(2)
Hematite hollow spindles were successfully fabricated via an environmental friendly hydrothermal route at one step without employing any templates. The samples were characterized by field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and N2 …
Novel RGO–hematite nanocomposites have been successfully fabricated using a surfactant-governed approach in the presence of polyvinylpyrrolidone (PVP) under mild wet chemical conditions (105 °C). A series of characterization methods including X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM) and …
In this work, hematite nanowire arrays (HNA) were fabricated on pure iron foil by using anodization process in fluoric electrolyte to produce superhydrophilic surfaces. The in situ growth of HNA on iron substrates was ascertained by scanning electron microscopy images, X-ray photoelectron spectroscopy and glancing angle X-ray diffraction …
Hematite (α-Fe 2 O 3) nanosheets with enhanced photo-electrochemical ability fabricated via single step anodization. Author links open overlay panel Jaffar Farooq Mir, ... Fabrication of shape-controlled α-Fe 2 O 3 nanostructures by sonoelectrochemical anodization for visible light photocatalytic application. Mater. Lett., 64 (3) ...
A, 2013, 1, 5996 View Journal | View Issue Controllable fabrication of mono-dispersed RGO– hematite nanocomposites and their enhanced wave absorption properties† Dezhi Chen,ac Guang-Sheng Wang,*a Shuai He,a Jia Liu,b Lin Guo*a and Mao-Sheng Cao*b Novel RGO–hematite nanocomposites have been successfully fabricated using a …
The aim of the current work is the introduction of a quick and simple literature survey about the bio-fabrication of the Alpha Hematite nanoparticles (α-Fe2O3) using the plant extracts green method.
In this work, doping hematite with 1% tin and loading with NiFe-layered double hydroxide (LDH) co-catalyst has been done to improve the charge transport properties. To enhance the PEC performance and study the effect of precursor concentration, NiFe-LDH at two different concentrations (low and high) was coated on Sn-doped hematite.
DOI: 10.1016/J.APSUSC.2016.02.007 Corpus ID: 101723615; Fabrication of hematite (α-Fe 2 O 3 ) nanoparticles using electrochemical deposition @article{Meng2016FabricationOH, title={Fabrication of hematite ($alpha$-Fe 2 O 3 ) nanoparticles using electrochemical deposition}, author={Qingling Meng and Zuobin …
Page 1 of 8 Accepted Manuscript • Cathodic electrochemical deposition proposed to fabricate hematite nanoparticles. • Hematite nanoparticles were fabricated on indium-tin-oxide coated glass substrates. • The size and shape of nanoparticles were determined by deposition conditions. • The nanoparticles were well decentralized for different potential …
2.3 Characterization of hematite nanoparticles and WG films. X-ray diffraction (XRD) analysis was carried out to determine the size and crystal forms of nanoparticles. HNP and WG films' XRD patterns were acquired using a powder EMPYREAN diffractometer over 2θ range from 20 to 80° at operating mode (45 kV, 40 mA using Cu Kα radiation (lambda) …
A lot of researchers have focused on growth and fabrication of the hematite nanowire and nanorod nanostructures by means of thermal oxidation method so far in the literature. When the Fe or steel is oxidized at high temperature, the oxide consists of multilayer scales in the sequence of Fe/FeO/Fe 3 O 4 /Fe 2 O 3 based on at which temperature ...
The morphology of the hematite film prepared by DA method are investigated by SEM and shown in Fig. 1.Hematite particles are loaded along with surface roughness of fluorine doped tin oxide substrate, forming hematite thin layer (Fig. 1 (a)).Each hematite thin layer showed differences in optical image along with dopants are doped in. Ti doped n-type …
From 1956 to 1974, the Hematite Fuel Fabrication Facility produced nuclear fuel for military and peacetime purposes as the first privately owned and operated fuel production plant in the United States. As owner and operator, Westinghouse needed to manage and perform the entire decommissioning effort at the facility.
The Hematite Fuel Fabrication Facility produced high-enriched nuclear fuel for the U.S. Navy nuclear submarine program and other reactor programs during the "Cold War" years of 1956 to 1974. After 1974 the Facility produced only commercial grade low enriched uranium for commercial nuclear power facilities. ...
Novel RGO–hematite nanocomposites have been successfully fabricated using a surfactant-governed approach in the presence of polyvinylpyrrolidone (PVP) under mild wet chemical conditions (105 °C).
The concept of nanostructuring and doping of hematite (α-Fe 2 O 3) photoanodes have been widely engaged towards improving their photoelectrocatalytic (PEC) …
A hematite photoanode showing a stable, record-breaking performance of 4.32 mA/cm2 photoelectrochemical water oxidation current at 1.23 V vs. RHE under simulated 1-sun (100 mW/cm2) irradiation is ...
We report a facile and efficient fluoride ion-assisted hydrothermal route to prepare novel hollow hematite polyhedral architectures without any template or surfactant. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images reveal that the microparticles with empty interior are polyhedra. On the basis of time-dependent …
Hematite (α-Fe 2 O 3, HT) is a proficient photoanode material that has been intensively explored for PEC water splitting due to its propitious bandgap ... Fabrication of the Al-doped Fe 2 O 3 (Al-HT) photoanodes. A similar MW process was used to treat the as-prepared Bare-FeOOH film with different concentrations of AlCl 3 solution ...
Hematite has a great potential as a photoanode for photoelectrochemical (PEC) water splitting by converting solar energy into hydrogen fuels, but the solar-to-hydrogen …
The use of hematite-based photoanodes in PEC water splitting has shown some progress, but there are still limitations in terms of photocurrent density ... It is clear that the fabrication of HDP structures was a significant step towards practical solar hydrogen production. With this technology, we can expand light capture, increase photocurrent ...
Fabrication of electrodes. The hematite (α-Fe 2 O 3) photoanodes were prepared by anodic electrodeposition and hydrothermal methods on F-doped SnO 2 glass (FTO). Initially, the FTO substrates were successively cleaned in an ultrasonic bath with detergent, deionized water, acetone, and ethanol for 20 min in sequence and then dried with …
The structural, morphological, optical, and electrochemical properties of hematite (α-Fe 2 O 3) nanostructures with respect to various processing methods, annealing temperatures …
Fabrication of hematite MC-based photoanodes. The hematite MC-based films were prepared by multiple spin-coating (3000 rpm) of an ethanol solution containing the highly dispersed hematite-based ...
Fast and low-cost fabrication of 1D hematite photoanode in pure water vapor and air atmosphere: investigation the effect of the oxidation atmosphere on the PEC performance of the hematite photoanodes. Int. J. Hydrogen Energy, 42 (2017), pp. 11139-11149.
Fabrication of hematite MC-based photoanodes. The hematite MC-based films were prepared by multiple spin-coating (3000 rpm) of an ethanol solution containing the highly …
In this work, cathodic electrochemical deposition was proposed to fabricate reproducible and homogeneous hematite (α-Fe 2 O 3 ) nanoparticles on indium-tin-oxide (ITO) films. The α-Fe 2 O 3 nanoparticles, which were quasi-hexagonally shaped, were deposited in an aqueous mixture of FeCl 2 and FeCl >3 at the temperatures 16.5 °C, 40 °C and …
Request PDF | Sustainable fabrication of hematite (a-Fe2O3) nanoparticles using biomolecules of Punica granatum seed extract for unconventional solar-light-driven photocatalytic remediation of ...
Hematite (α-Fe2O3) is one of the most promising candidates as a photoanode materials for solar water splitting. ... Therefore, most of the efforts have been focused on the fabrication of ...
Single crystal hematite photoanode, Fe-25A/Co−Pi, yields a photocurrent density of 2.67 mA cm −2 (at 1.23 V vs. RHE) and an incident photon-to-current conversion efficiency …
In this work, a facile route using a simple solvothermal reaction and sequential calcinations to synthesize porous α-Fe2O3 flower-like nanostructures without employing templates or matrices for self-assembly is presented. The flower-like nanostructures are composed of nanosheets with a thickness of about 20 nm, which are characterized by field-emission …
In this work, cathodic electrochemical deposition was proposed to fabricate reproducible and homogeneous hematite (α-Fe 2 O 3) nanoparticles on indium-tin-oxide (ITO) films. …
Sustainable fabrication of hematite (α-Fe 2 O 3) nanoparticles using biomolecules of Punica granatum seed extract for unconventional solar-light-driven photocatalytic …
Fabrication of hematite photoanode The working electrode was prepared by stirring together 85 wt% α -Fe 2 O 3 powder as the active material, 10 wt% acetylene black, and …
Controllable fabrication and growth mechanism of hematite cubes. Changhua Su, Changhua Su. ... The results show that the monodisperse hematite cubes with high crystalline and narrow size distribution could be fabricated at the hydrothermal temperature of 160 °C for 24 h while the concentrations of FeCl 3 and CH 3 COONH 4 were in the …