Interface Engineering of Hematite with Nacre-like Catalytic …
An efficient water oxidation photoanode based on hematite has been designed and fabricated by tailored assembly of graphene oxide (GO) nanosheets and cobalt polyoxometalate (Co-POM) water oxidation catalysts into a nacre-like multilayer architecture on a hematite photoanode.
Chemical Engineering Journal
Chemical Engineering Journal. Volume 500, 15 November 2024, 157259. Insights into sulfamethazine degradation by peroxymonosulfate activation using H 2 reduced hematite in high-salinity wastewater: Performances and mechanisms. Author links open overlay panel Guomin Zhu a b, Jing Ding a c, Annan Dou a, Qiyan Xu a, Jingling Yang b, Yilong Ji a ...
Surface engineering of hematite nanorods photoanode …
Engineering new materials is essential to effectively promote photogenerated charge separation for solar energy conversion into a current. Hematite (Fe 2 O 3) is one of the most stable semiconductor metal oxides used in photoanodes, and has been widely used in the fields of environment and energy.Hematite has been extensively documented for PEC water …
Synthesis and Applications of Hematite α-Fe2O3 : a Review
In this article, we review hematite α-Fe 2 O 3 focusing on its material properties, nanostructures, synthesis techniques, and various applications that have been associated using hematite α-Fe 2 ...
Surface Engineering of Hematite Nanorods by 2D Ti3C2
Surface engineering of hematite (α-Fe2O3) photoanode by coupling electrocatalytically active metal-organic frameworks (MOFs) is an efficient way of boosting surface charge transfer for ...
Mechanism and kinetics of hematite reduction under typical …
Hematite reduction by hydrazine under typical PWR secondary circuit conditions is firstly dominated by the adsorption of hydrazine onto the surface of hematite, which is …
Structural engineering hematite photoanode composited …
3.1 Structural and morphological characterizations. As shown in Fig. 1a, α-Fe 2 O 3 films are synthesized through the hydrothermal method and then modified with a MOF and Ru/MnO x cocatalyst through the solvothermal method and photodeposition to obtain the FTO/α-Fe 2 O 3 /MOF/Ru/MnO x photoanode. The α-Fe 2 O 3 photoanode is composed of disordered …
Synthesis and Applications of Hematite α-Fe2O3 : a Review
This article reviewed the hematite α-Fe 2 O 3, which focuses on its material properties, nanostructures, synthesis techniques, and its numerous applications. Researchers prepared the hematite nanostructure using the synthesis methods, such as hydrothermal, and, further, enhanced it by improving the techniques to accommodate the best performance for specific …
Oxygen defect engineering optimization for improving the …
Oxygen defect engineering optimization for improving the performance of a fusiform hematite (α-Fe 2 O 3) ethanol sensor. Author links open overlay panel Quan Diao a, ... HCHO [13,14] and triethylamine (TEA) [15]. Notably, hematite (α-Fe 2 O 3) is an n-type semiconductor with excellent thermal, chemical stability, biocompatibility and ...
Interface Engineering of Hematite with Nacre-Like
Herein, the most recent developments on interfacial engineering of hematite photoanode are summarized. We first describe the optical and electronic properties of the α‐Fe2O3 that are related to ...
Influence of hydrogen flow rate on multistep kinetics of …
In this study, the isothermal reaction characteristics and multistep kinetics of hematite particles with hydrogen are investigated using thermogravimetric analysis (TGA) at …
(PDF) Flotation of Iron Ores: A Review
School of Resources and Civil Engineering, Northeastern University, Shenyang, PR China; b. ... This process can upgrade the specular hematite from an iron. ... After co mminution and classification,
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Combining Bulk/Surface Engineering of Hematite To …
One of the most promising candidates for photoelectrochemical (PEC) water splitting photoanode is hematite (α-Fe2O3) due to its narrow bandgap and chemical stability. However, the poor bulk/surface kinetics of hematite limits its PEC performance. Herein, a facile two-step approach is reported to syn …
Morphology and Doping Engineering of Sn-Doped Hematite …
Yet, hematite nanowires thermally annealed at high temperature suffe … Morphology and Doping Engineering of Sn-Doped Hematite Nanowire Photoanodes Nano Lett. 2017 Apr 12;17(4):2490-2495. doi: 10.1021/acs.nanolett.7b00184. Epub 2017 Mar 27. Authors Mingyang Li 1 ...
Surface engineering of hematite nanorods photoanode …
Rapid charge recombination in hematite (Fe2O3) during photoelectrochemical water splitting is a major obstacle to achieving high-efficiency photoelectrodes. Surface defect engineering is considered as a viable strategy for enhancing photoelectrochemical activity of oxide photoa …
Oxygen vacancy engineering and superior sensing properties of hematite
By using hematite (α-Fe2O3) as example, in this paper we demonstrated high effectiveness of controlling supersaturation of growth monomers in engineering the exposed facets of nanocrystals.
(PDF) Hematite. Processing and Applications
In the paper are shown the history, processing and applications of hematite. Hematite is an oxide of iron having the composition Fe2O3. Pure hematite, also called "red ore" contains 70% Fe.
(PDF) Morphology and Doping Engineering of Sn-Doped Hematite …
PDF | On Mar 23, 2017, Mingyang Li and others published Morphology and Doping Engineering of Sn-Doped Hematite Nanowire Photoanodes | Find, read and cite all the research you need on ResearchGate
Band gap and Morphology Engineering of Hematite …
In this article, we report a simple ex situ Sn-doping method on hematite nanoflakes (coded as MSnO2-H) that can protect the nanoflake (NF) morphology against the 800 °C high-temperature annealing ...
Solution chemistry back-contact FTO/hematite interface engineering …
Chinese Journal of Catalysis ›› 2022, Vol. 43 ›› Issue (5): 1247-1257. DOI: 10.1016/S1872-2067(21)63973-6 • Articles • Previous Articles Next Articles Solution chemistry back-contact FTO/hematite interface engineering for efficient photocatalytic water oxidation
(PDF) Delaminated iron ore (hematite-barite) as
Delaminated iron ore (hematite-barite) as alternative weighting agent to barite in petroleum drilling fluids engineering operations and mechanism study. May 2020; Ain Shams Engineering Journal 11(4)
Solution chemistry back-contact FTO/hematite interface engineering …
Interfacial engineering of hematite photoanodes toward high water splitting performance. 2023, Materials Today Energy. Citation Excerpt : Comparing the AFM topographic images of HEM (Fig. 1f) and 4%Hf-HEM photoanodes (Fig. 1g), there was a reduction in the average surface roughness (RSM, sq) from 8.2 nm to 5.8 nm, respectively. This smoothing ...
Manganese doping of hematite enhancing oxidation and …
In this study, a series of hematite materials modified by MnO 2 (Hm-Mn) were synthesized to achieve the adsorption-oxidation bifunctionality of hematite toward As(III). The maximal As(III) adsorption capacity of Hm-Mn (80.0 mg g −1 ) was nearly 3 times higher than that of pure hematite (28.5 mg g −1 ).
Microstructural Evolution and Its Effect on Reaction Rate …
Observations reported using synthetic pure hematite pellets, and low-porosity sintered hematite ore pellets, underscore the potential impact of pore volume and gangue …
Mechanism and Kinetics of the Reduction of …
The mechanism and kinetics of the reduction of hematite to magnetite in a laboratory-scale, micro-fluidized bed reactor were isothermally investigated. The procedure consisted of the isothermal heating in a flow of a …
Solution chemistry back-contact FTO/hematite interface engineering …
Solution chemistry back-contact FTO/hematite interface engineering for efficient photocatalytic water oxidation. https://doi/10.1016/s1872-2067(21)63973-6
Interfacial engineering of hematite photoanodes toward …
1. Introduction. Hematite (HEM, α-Fe 2 O 3) has been selected as a model and promising material for photoelectrochemical (PEC) water splitting due to its excellent electrochemical stability in an aqueous environment, favorable band gap enabling visible light absorption, and wide availability in nature.However, its practical application as photoanode is …
Sci-Hub | Kinetics of Magnetite (Fe3O4) Oxidation to Hematite …
Kinetics of Magnetite (Fe3O4) Oxidation to Hematite (Fe2O3) in Air for Chemical Looping Combustion. Industrial & Engineering Chemistry Research, 53(34), 13320–13328. doi:10.1021/ie501536s 10.1021/ie501536s
Underlayer engineering into the Sn-doped hematite …
Photoelectrochemical water splitting (PEC-WS) is an environmentally benign technology for hydrogen generation. Hematite (α-Fe2O3) photoanodes have received extensive attention in PEC-WS field due ...