Cu2O@Fe–Ni3S2 nanoflower in situ grown on copper foam at room temperature as an excellent oxygen evolution electrocatalyst

2020 ◽  
Vol 56 (82) ◽  
pp. 12339-12342
Author(s):  
Li Li Wu ◽  
Yu Xian Yang ◽  
Xiao Hui Chen ◽  
Juan Luo ◽  
Hong Chuan Fu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Water Oxidation ◽  
Room Temperature ◽  
Core Shell ◽  
Copper Foam

A 3D/2D core–shell Cu2O@Fe–Ni3S2 nanoflower is prepared at room temperature through an etching precipitation strategy for enhanced electrochemical water oxidation.

In situ development of amorphous Mn–Co–P shell on MnCo2O4 nanowire array for superior oxygen evolution electrocatalysis in alkaline media

2018 ◽  
Vol 54 (9) ◽  
pp. 1077-1080 ◽  
Author(s):  
Jingrui Han ◽  
Shuai Hao ◽  
Zhiang Liu ◽  
Abdullah M. Asiri ◽  
Xuping Sun ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Water Oxidation ◽  
Nanowire Array ◽  
Alkaline Media ◽  
Core Shell ◽  
Ti Mesh

Core–shell Mn–Co–P@MnCo2O4 nanoarray on Ti mesh (Mn–Co–P@MnCo2O4/Ti) acts as a durable water oxidation electrocatalyst with an overpotential of 269 mV to drive 10 mA cm−2 in 1.0 M KOH.

Amorphous NiFe layered double hydroxide nanosheets decorated on 3D nickel phosphide nanoarrays: a hierarchical core–shell electrocatalyst for efficient oxygen evolution

2018 ◽  
Vol 6 (28) ◽  
pp. 13619-13623 ◽  
Author(s):  
Luo Yu ◽  
Haiqing Zhou ◽  
Jingying Sun ◽  
Ishwar Kumar Mishra ◽  
Dan Luo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Water Oxidation ◽  
Core Shell ◽  
Nickel Phosphide ◽  
Double Hydroxide

Amorphous NiFe LDH nanosheets were decorated on nickel phosphide nanoarrays to form a 3D core–shell electrocatalyst for efficient water oxidation.

In situ surface derivation of an Fe–Co–Bi layer on an Fe-doped Co3O4 nanoarray for efficient water oxidation electrocatalysis under near-neutral conditions

2017 ◽  
Vol 5 (14) ◽  
pp. 6388-6392 ◽  
Author(s):  
Guilei Zhu ◽  
Ruixiang Ge ◽  
Fengli Qu ◽  
Gu Du ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Core Shell ◽  
Neutral Conditions ◽  
Catalyst Electrode

A core–shell Fe–Co3O4@Fe–Co–Bi nanoarray (Fe–Co3O4@Fe–Co–Bi/CC) acts as a superior catalyst electrode for water oxidation, with the need of an overpotential of 420 mV to drive 10 mA cm−2 in 0.1 M K-Bi.

In situ electrochemical formation of NiSe/NiOx core/shell nano-electrocatalysts for superior oxygen evolution activity

2016 ◽  
Vol 6 (23) ◽  
pp. 8268-8275 ◽  
Author(s):  
Ruiqin Gao ◽  
Guo-Dong Li ◽  
Jiabo Hu ◽  
Yuanyuan Wu ◽  
Xinran Lian ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Core Shell ◽  
Excellent Activity

Despite the superior oxygen evolution electrocatalytic activity of metal-selenide nanostructures, especially when compared with their oxide counterparts, the origin behind their excellent activity remains unclear.

In situ electrochemical formation of core–shell nickel–iron disulfide and oxyhydroxide heterostructured catalysts for a stable oxygen evolution reaction and the associated mechanisms

2017 ◽  
Vol 5 (9) ◽  
pp. 4335-4342 ◽  
Author(s):  
Min Zhou ◽  
Qunhong Weng ◽  
Xiuyun Zhang ◽  
Xi Wang ◽  
Yanming Xue ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Core Shell ◽  
Nickel Iron ◽  
Iron Disulfide ◽  
Catalytic Stability ◽  
Stable Oxygen

A novel Ni–Fe disulfide@oxyhydroxide core–shell heterostructure exhibits excellent electrochemical catalytic stability and activity for the oxygen evolution reaction (OER).

scholarly journals Eco-Friendly Chitosan@Silver/Plant Fiber Membranes for Masks with Thermal Comfortability and Self-Sterilization

2021 ◽  
Author(s):  
Qian Zou ◽  
Yinuo Gai ◽  
Xiaotang Gai ◽  
Siwei Xiong ◽  
Nanjun Wei ◽  
...  
Keyword(s):  
Room Temperature ◽  
Antibacterial Properties ◽  
Core Shell ◽  
Plant Fiber ◽  
Plant Fibers ◽  
Antiviral Effects ◽  
Surgical Masks ◽  
Long Time ◽  
Heavy Burden

Abstract The surgical masks have been essential consumables for public in the COVID-19 pandemic. However, long-time wearing masks will make wearers feel uncomfortable and massive discarded non-biodegradable masks lead to a heavy burden on our environment. In this paper, we adopt degradable chitosan@silver (CS@Ag) core-shell fibers and plant fibers to prepare an eco-friendly mask with excellent thermal comfort, self-sterilization, and antiviral effects. The thermal network of CS@Ag core-shell fibers highly improves the in-plane thermal conductivity of masks, which is 4.45 times higher than that of commercial masks. Because of the electrical conductivity of Ag, the fabricated mask can be electrically heated to warm the wearer in a cold environment and disinfect COVID-19 facilely at room temperature. Meanwhile, the in-situ reduced silver nanoparticles (AgNPs) endow the mask with superior antibacterial properties. Therefore, this mask shows a great potential to address the urgent need for a thermally comfortable, antibacterial, antiviral, and eco-friendly mask.

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