Cobalt-Iron Oxide Nanoarrays Supported on Carbon Fiber Paper with High Stability for Electrochemical Oxygen Evolution at Large Current Densities

2018 ◽  
Vol 10 (46) ◽  
pp. 39809-39818 ◽  
Author(s):  
Zhiguo Ye ◽  
Chunlin Qin ◽  
Guang Ma ◽  
Xinyuan Peng ◽  
Tao Li ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Carbon Fiber ◽  
Oxygen Evolution ◽  
High Stability ◽  
Large Current ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron ◽  
Carbon Fiber Paper ◽  
Current Densities ◽  
Electrochemical Oxygen

scholarly journals Tailoring Morphology and Electronic Structure of Cobalt Iron Oxide Nanowires for Electrochemical Oxygen Evolution Reaction

2020 ◽  
Vol 3 (9) ◽  
pp. 8583-8594 ◽  
Author(s):  
Eko Budiyanto ◽  
Mingquan Yu ◽  
Minmin Chen ◽  
Serena DeBeer ◽  
Olaf Rüdiger ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Iron Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Oxide Nanowires ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron ◽  
Electrochemical Oxygen

A high-performance bimetallic cobalt iron oxide catalyst for the oxygen evolution reaction

CrystEngComm ◽  
2020 ◽  
Vol 22 (25) ◽  
pp. 4317-4323
Author(s):  
Donggang Guo ◽  
Hongzhi Kang ◽  
Pengkun Wei ◽  
Yang Yang ◽  
Zewei Hao ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Porous Structure ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Oxide Catalyst ◽  
Iron Oxide Catalyst ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron

Herein, a facile solvothermal approach was designed to produce the CoFe2O4 nanospheres with unique porous structure. As an efficient electrocatalyst for OER, the CoFe2O4 nanospheres performed high performance.

Facile synthesis of iron phosphide nanorods for efficient and durable electrochemical oxygen evolution

2016 ◽  
Vol 52 (56) ◽  
pp. 8711-8714 ◽  
Author(s):  
Dehua Xiong ◽  
Xiaoguang Wang ◽  
Wei Li ◽  
Lifeng Liu
Keyword(s):  
Carbon Fiber ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Facile Synthesis ◽  
Iron Phosphide ◽  
Long Term Stability ◽  
Carbon Fiber Paper ◽  
Electrochemical Oxygen

Iron phosphide (FeP) nanorods supported on carbon fiber paper electrodes exhibit outstanding electrocatalytic activity and long-term stability toward the oxygen evolution reaction.

Low-temperature fabrication of crystalline MnCoO spinel film on porous carbon paper for efficient oxygen evolution reaction

2021 ◽  
Author(s):  
Sunglun Kwon ◽  
Ha Eun Lee ◽  
Donghoon Han ◽  
Jong Hyeon Lee
Keyword(s):  
Thin Film ◽  
Carbon Fiber ◽  
Low Temperature ◽  
Oxygen Evolution ◽  
Porous Carbon ◽  
Oxygen Evolution Reaction ◽  
Carbon Paper ◽  
Carbon Fiber Paper

A thin film of MnxCo3−xO4 (MnCoO) nanocatalyst on a porous carbon fiber paper (CFP) electrode for efficient oxygen evolution reaction (OER).

Preparation and physical characterization of cobalt iron oxide magnetic nanoparticles loaded polyvinyl alcohol

2021 ◽  
pp. 089270572098557
Author(s):  
M Abu-Abdeen ◽  
O Saber ◽  
E Mousa
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Polyvinyl Alcohol ◽  
Saturation Magnetization ◽  
Polymer Films ◽  
Magnetic Hysteresis ◽  
Thermal Method ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron ◽  
Iron Oxide Magnetic Nanoparticles

A solvent thermal method which depends on a thermal process under critical temperature and pressure was used to prepare cobalt iron oxide magnetic nanoparticles with a molar ratio 2. The prepared particles were in the form of nanoparticles with diameter ranging from 5 to 10 nm and with amorphous structure. Magnetic hysteresis behavior with saturation magnetization 36.31 emu/g and coercivity 4 Oe were observed for the nanoparticles. Polyvinyl alcohol was loaded with different concentrations of cobalt iron oxide nanoparticles using casting technique. Hysteresis loops for the polymer films were observed and both the saturation magnetization and coercivity were increased from 0.36 to 16.03 emu/g and 115 to 293 Oe for samples containing 5 and 20 wt% of nanoparticles, respectively. The elastic modulus of films was increased from 2.7 to 4.9 GPa for unloaded and loaded samples with 20 wt%, respectively. The storage modulus of the polymer films was found to obey the percolation behavior.

Electrodeposition of Cobalt Phosphosulfide Nanosheets on Carbon Fiber Paper as Efficient Electrocatalyst for Oxygen Evolution

2018 ◽  
Vol 5 (13) ◽  
pp. 1677-1682 ◽  
Author(s):  
Zhenchuan Liu ◽  
Junfeng Zhang ◽  
Yangxing Liu ◽  
Weikang Zhu ◽  
Xiangwen Zhang ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Oxygen Evolution ◽  
Carbon Fiber Paper ◽  
Cobalt Phosphosulfide

Synthesis of Cobalt Iron Oxide Doped by Chromium Using Sol-Gel Method and Application to Remove Malachite Green Dye

2021 ◽  
Vol 19 (8) ◽  
pp. 32-41
Author(s):  
Ebtisam K. Alwan ◽  
Aqeel Mohhamed Hammoudi ◽  
Intessar K. Abd ◽  
Maryam O. Abd Alaa ◽  
Mohammed Nsaif Abbas
Keyword(s):  
Iron Oxide ◽  
Surface Area ◽  
Malachite Green ◽  
Contact Time ◽  
Sol Gel ◽  
Gel Method ◽  
Malachite Green Dye ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron ◽  
Acidic Function

In the current paper, the nanoparticles of cobalt iron oxide doped by chromium (CIC) of (CrxCoFe2-xO4) formula were prepared by sol-gel method using the nitrate salts of the elements composed of this nanomaterial. The characteristic properties of CIC nanoparticles prepared were determined using X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) in addition to scanning electron microscopy (SEM) and also examination of the surface area (BET). These tests showed that the CIC nanoparticle prepared was in a pure phase, in addition to having various functional groups; moreover their structural framework includes multiple pores, which was the reason for the high surface area, reached to 223.36 m2.g-1. The prepared CIC nanoparticle was applied as an adsorbent to recover the malachite green dye from aqueous contaminated solutions in a batch mode adsorption unit and under different operating conditions. Designing factors used to determine the efficiency of the CIC as an adsorption media for the organic dye included the acidic function (pH), contact time and amount of nanomaterial CIC. The obtained practical results showed that the removal efficiency of the malachite green dye using CIC nanoparticle was 88.519% at 50 ppm of the initial concentration of the contaminated solution and that the percentage removal was directly proportional to the amount of adsorbent, contact time and acidic function.

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