Electrodeposition of Ni–Co–Fe mixed sulfide ultrathin nanosheets on Ni nanocones: a low-cost, durable and high performance catalyst for electrochemical water splitting

Nanoscale ◽  
2019 ◽  
Vol 11 (35) ◽  
pp. 16621-16634 ◽  
Author(s):  
Ghasem Barati Darband ◽  
Mahmood Aliofkhazraei ◽  
Suyeon Hyun ◽  
Alireza Sabour Rouhaghdam ◽  
Sangaraju Shanmugam
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Electrocatalytic Activity ◽  
High Performance ◽  
Low Cost ◽  
Electrodeposition Method ◽  
Ultrathin Nanosheets ◽  
Electrochemical Water Splitting ◽  
Mixed Sulfide

Ni–Co–Fe mixed sulfide ultrathin nanosheets obtained by electrodeposition method exhibits excellent electrocatalytic activity. The Ni–Co–Fe nanosheets require the overpotential of 106 and 207 mV to generate 10 mA cm−2 current density for the HER, and OER, respectively.

Interfacial engineering of nickel/iron/ruthenium phosphides for efficient overall water splitting powered by solar energy

2021 ◽  
Author(s):  
Sheng-Hao Cai ◽  
Xiao-Nan Chen ◽  
Meng-Jie Huang ◽  
Ji-Yuan Han ◽  
Yu-Wei Zhou ◽  
...  
Keyword(s):  
Solar Energy ◽  
Water Splitting ◽  
High Performance ◽  
Low Cost ◽  
Bifunctional Catalysts ◽  
Nickel Iron ◽  
Interfacial Engineering ◽  
Overall Water Splitting ◽  
Electrochemical Water Splitting

Exploiting high-performance, low-cost, and robust bifunctional catalysts toward electrochemical water splitting is of great importance, but remains challenging. Herein, a novel hybrid electrocatalyst of Ni-Fe-Ru-based phosphide heterostructures directly grown on...

Tuning the electronic structure of NiCoVOx nanosheets through S doping for enhanced oxygen evolution

Nanoscale ◽  
2021 ◽  
Author(s):  
Haibin Ma ◽  
ChangNing SUN ◽  
Zhili Wang ◽  
Qing Jiang
Keyword(s):  
Electronic Structure ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Ni Foam ◽  
Electrochemical Water Splitting

It is of great importance to develop efficient and low-cost oxygen evolution reaction (OER) electrocatalysts for electrochemical water splitting. Herein, S doped NiCoVOx nanosheets grown on Ni-Foam (S-NiCoVOx/NF) with modified...

scholarly journals A Ni(OH)2 nanopetals network for high-performance supercapacitors synthesized by immersing Ni nanofoam in water

2019 ◽  
Vol 10 ◽  
pp. 281-293 ◽  
Author(s):  
Donghui Zheng ◽  
Man Li ◽  
Yongyan Li ◽  
Chunling Qin ◽  
Yichao Wang ◽  
...  
Keyword(s):  
Power Density ◽  
Current Density ◽  
High Performance ◽  
Low Cost ◽  
Electrode Reaction ◽  
Commercial Application ◽  
Ion Diffusion ◽  
Symmetric Supercapacitor ◽  
Red Led ◽  
A Current

Developing a facile and environmentally friendly approach to the synthesis of nanostructured Ni(OH)2 electrodes for high-performance supercapacitor applications is a great challenge. In this work, we report an extremely simple route to prepare a Ni(OH)2 nanopetals network by immersing Ni nanofoam in water. A binder-free composite electrode, consisting of Ni(OH)2 nanopetals network, Ni nanofoam interlayer and Ni-based metallic glass matrix (Ni(OH)2/Ni-NF/MG) with sandwich structure and good flexibility, was designed and finally achieved. Microstructure and morphology of the Ni(OH)2 nanopetals were characterized. It is found that the Ni(OH)2 nanopetals interweave with each other and grow vertically on the surface of Ni nanofoam to form an “ion reservoir”, which facilitates the ion diffusion in the electrode reaction. Electrochemical measurements show that the Ni(OH)2/Ni-NF/MG electrode, after immersion in water for seven days, reveals a high volumetric capacitance of 966.4 F/cm3 at a current density of 0.5 A/cm3. The electrode immersed for five days exhibits an excellent cycling stability (83.7% of the initial capacity after 3000 cycles at a current density of 1 A/cm3). Furthermore, symmetric supercapacitor (SC) devices were assembled using ribbons immersed for seven days and showed a maximum volumetric energy density of ca. 32.7 mWh/cm3 at a power density of 0.8 W/cm3, and of 13.7 mWh/cm3 when the power density was increased to 2 W/cm3. The fully charged SC devices could light up a red LED. The work provides a new idea for the synthesis of nanostructured Ni(OH)2 by a simple approach and ultra-low cost, which largely extends the prospect of commercial application in flexible or wearable devices.

Sn–Ni3S2 Ultrathin Nanosheets as Efficient Bifunctional Water-Splitting Catalysts with a Large Current Density and Low Overpotential

2018 ◽  
Vol 10 (47) ◽  
pp. 40568-40576 ◽  
Author(s):  
Juan Jian ◽  
Long Yuan ◽  
Hui Qi ◽  
Xuejiao Sun ◽  
Le Zhang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Ultrathin Nanosheets ◽  
Large Current ◽  
Large Current Density ◽  
Low Overpotential

Fabrication of practical catalytic electrodes using insulating and eco-friendly substrates for overall water splitting

2020 ◽  
Vol 13 (1) ◽  
pp. 102-110 ◽  
Author(s):  
Weiju Hao ◽  
Renbing Wu ◽  
Hao Huang ◽  
Xin Ou ◽  
Lincai Wang ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
Low Cost ◽  
Light Weight ◽  
Overall Water Splitting ◽  
Insulating Substrates

A family of catalytic electrodes fabricated by insulating substrates of paper, cloth and sponge which bring dramatic advantages of high performance, low cost, light weight, eco-friendliness, flexibility, and simple fabrication, were developed.

A general approach to synthesise ultrathin NiM (M = Fe, Co, Mn) hydroxide nanosheets as high-performance low-cost electrocatalysts for overall water splitting

2017 ◽  
Vol 5 (17) ◽  
pp. 7769-7775 ◽  
Author(s):  
Xiuhui Sun ◽  
Qi Shao ◽  
Yecan Pi ◽  
Jun Guo ◽  
Xiaoqing Huang
Keyword(s):  
Water Splitting ◽  
High Performance ◽  
Low Cost ◽  
Overall Water Splitting

A general approach to ultrathin NiM (M = Fe, Co, Mn) hydroxide nanosheets as efficient electrocatalysts for overall water splitting.

Ultrasmall Dispersible Crystalline Nickel Oxide Nanoparticles as High-Performance Catalysts for Electrochemical Water Splitting

2014 ◽  
Vol 24 (21) ◽  
pp. 3123-3129 ◽  
Author(s):  
Ksenia Fominykh ◽  
Johann M. Feckl ◽  
Johannes Sicklinger ◽  
Markus Döblinger ◽  
Sebastian Böcklein ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Water Splitting ◽  
High Performance ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
Electrochemical Water Splitting

scholarly journals N-Doped Carbon Boosted the Formation of Few-Layered MoS2 for High-Performance Lithium and Sodium Storage

2021 ◽  
Vol 8 ◽  
Author(s):  
Junfeng Li ◽  
Xianzi Zhou ◽  
Kai Lu ◽  
Chao Ma ◽  
Liang Li ◽  
...  
Keyword(s):  
Current Density ◽  
High Performance ◽  
High Current Density ◽  
Low Cost ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Molybdenum Sulfide ◽  
High Current ◽  
High Theoretical Capacity ◽  
Sodium Storage

Molybdenum sulfide (MoS2) has become a potential anode of lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) due to its high theoretical capacity and low cost. However, the volume expansion, poor electrical conductivity and dissolution of polysulfides in the electrolyte during the cycling process severely limited its applications. Herein, few-layered MoS2@N-doped carbon (F-MoS2@NC) was synthesized through a facile solvothermal and annealing process. It was found that the addition of N-doped carbon precursor could significantly promote the formation of few-layered MoS2 and improve the performances of lithium and sodium storage. A high reversible capacity of 482.6 mA h g−1 at a high current density of 2000 mA g−1 could be obtained for LIBs. When used as anode material for SIBs, F-MoS2@NC hybrids could maintain a reversible capacity of 171 mA h g−1 at a high current density of 1,000 mA g−1 after 600 cycles. This work should provide new insights into carbon hybrid anode materials for both LIBs and SIBs.

Interfacial engineering of Mo2C–Mo3C2 heteronanowires for high performance hydrogen evolution reactions

Nanoscale ◽  
2019 ◽  
Vol 11 (48) ◽  
pp. 23318-23329 ◽  
Author(s):  
Lina Jia ◽  
Chen Li ◽  
Yaru Zhao ◽  
Bitao Liu ◽  
Shixiu Cao ◽  
...  
Keyword(s):  
High Activity ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Precious Metal ◽  
High Performance ◽  
Large Scale ◽  
Low Cost ◽  
Critical Importance ◽  
Interfacial Engineering ◽  
Hydrogen Evolution Reactions

Non-precious metal-based electrocatalysts with high activity and stability for efficient hydrogen evolution reactions are of critical importance for low-cost and large-scale water splitting.

Sign in / Sign up

Export Citation Format

Share Document