Results 281 to 290 of about 118,822 (346)

Zipping Up NiFe(OH)x-Encapsulated Hematite To Achieve an Ultralow Turn-On Potential for Water Oxidation

ACS Energy Letters, 2019
The addition of oxygen evolution reaction (OER) catalysts improves photoelectrochemical (PEC) performance of photoanodes via facilitating charge transfer at the electrode/electrolyte interface and/or passivating surface hole-trap states.
Mingyang Li, Tianyu Liu, Yi Yang, Weitao Qiu, Chao-lun Liang, Y. Tong, Yat Li   +6 more
semanticscholar   +1 more source

The band structure and optical absorption of hematite (α-Fe2O3): a first-principles GW-BSE study.

Physical Chemistry, Chemical Physics - PCCP, 2019
Hematite (α-Fe2O3) is a widely investigated photocatalyst material for the oxygen evolution reaction, a key step in photoelectrochemical water splitting. Having a suitable band gap for light absorption, being chemically stable and based on earth abundant
S. Piccinin
semanticscholar   +1 more source

Conformally Coupling CoAl-LDH on Fluorine Doped Hematite: Surface and Bulk co-modification for Enhanced Photoelectrochemical Water Oxidation.

ACS Applied Materials and Interfaces, 2019
Earth-abundant hematite is an attractive photoanode for photoelectrochemical (PEC) water splitting, whereas the intrinsic properties of inferior charge transfer and slow water oxidation kinetics still hinder its application.
Chenglong Wang, Xuefeng Long, Shenqi Wei, Tong Wang, Feng Li, Lili Gao, Yiping Hu, Shuwen Li, Jun Jin   +8 more
semanticscholar   +1 more source

Facet-dependent reductive dissolution of hematite nanoparticles by Shewanella putrefaciens CN-32

, 2020
Dissimilatory iron-reducing processes can be influenced by the physicochemical properties of iron (Fe) oxides; however, little is known about the effect of the exposed facets of these oxides on the reductive dissolution process.
Shiwen Hu, Yundang Wu, Zecong Ding, Zhenqing Shi, Fangbai Li, Tongxu Liu   +5 more
semanticscholar   +1 more source

Size-Dependent Bacterial Toxicity of Hematite Particles.

Environmental Science and Technology, 2019
Submicron-sized iron oxide particles can influence the activity of bacteria, but the exact mechanisms of oxide toxicity toward bacteria remain elusive.
Chenchen Qu, Shufang Qian, Liang Chen, Y. Guan, Lei Zheng, Shuhu Liu, Wenli Chen, P. Cai, Qiaoyun Huang   +8 more
semanticscholar   +1 more source

Highly Porous Double-Shelled Hollow Hematite Nanoparticles for Gas Sensing

ACS Applied Nano Materials, 2019
Multishelled hollow micro/nanostructures hold great potential for a variety of important applications due to their fascinating properties. However, the synthesis of multishelled hollow micro/nanostructures mainly relies on template-involved methods.
Tiantian Ma, Lingli Zheng, Yingqiang Zhao, Yongshan Xu, Jun Zhang, Xianghong Liu   +5 more
semanticscholar   +1 more source

Ultrafiltration of Hematite Sol

Separation Science and Technology, 1996
Abstract Ultrafiltration of a laboratory-made hematite sol was studied in a batch cell with an Amicon PM 10 membrane at 298 K. The effects of hematite bulk concentrations (2 to 10 kg·m−3), stirring conditions (0 and 400 rpm), and pressure (50 to 350 kPa) were investigated.
Milonjić, Slobodan K., Vučić, Nevenka B., Vujošević, Sofija I.   +2 more
openaire   +2 more sources

Plasmonic Gold−Superparamagnetic Hematite Heterostructures

Langmuir, 2011
Bifunctional heterostructures composed of gold nanorods and hematite nanoparticle aggregates are prepared facilely through the hydrothermal decomposition of ferric acetylacetonate on the surface of the nanorods. The gold nanorod in the heterostructure is partially coated with the hematite nanoparticle aggregates. The hematite coating is porous.
Ngai, To, Bao, Zhihong, Li, Zifu, Sun, Zhenhua, Tian, Linwei, Wang, Jianfang   +5 more
openaire   +4 more sources

Synthesis of 2D Hexagonal Hematite Nanosheets and the Crystal Growth Mechanism.

Inorganic Chemistry, 2019
Nanostructure engineering of hematite is a promising strategy to overcome its performance limitations as a photodegradation catalyst for organic dyes or toxic organic chemicals.
M. Zong, Xin Zhang, Yining Wang, Xiaopeng Huang, Jianbin Zhou, Zhemin Wang, J. D. De Yoreo, Xiancai Lu, K. Rosso   +8 more
semanticscholar   +1 more source

Production of hematite concentrate from hematite-magnetite ore

Mining informational and analytical bulletin, 2020
The main useful minerals in composition of hematite-magnetite ore are magnetite and hematite. Magnetite is extracted by wet magnetic separation in weak magnetic field with production of magnetite concentrate and nonmagnetic product. The nonmagnetic product is a feed of the processing circuit for hematite.
openaire   +1 more source