Freestanding 3D graphene/cobalt sulfide composites for supercapacitors and hydrogen evolution reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 6886-6891 ◽  
Author(s):  
Yang Wang ◽  
Jing Tang ◽  
Biao Kong ◽  
Dingsi Jia ◽  
Yuhang Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Efficiency ◽  
Cobalt Sulfide ◽  
Energy Storage And Conversion ◽  
Active Materials ◽  
3D Graphene ◽  
Electrochemically Active

The development of lightweight, flexible, electrochemically active materials with high efficiency is important for energy storage and conversion.

scholarly journals Three dimensional Ni3S2 nanorod arrays as multifunctional electrodes for electrochemical energy storage and conversion applications

2020 ◽  
Vol 2 (1) ◽  
pp. 478-488 ◽  
Author(s):  
Kexin Cui ◽  
Jincheng Fan ◽  
Songyang Li ◽  
Moukaila Fatiya Khadidja ◽  
Jianghong Wu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Three Dimensional ◽  
Electrochemical Energy Storage ◽  
Energy Storage And Conversion ◽  
Nanorod Arrays ◽  
Ni Foam ◽  
Electrochemical Energy

3D Ni3S2 nanorod arrays/Ni foam as multifunctional electrodes for electrochemical energy storage and conversion applications have been achieved, demonstrating outstanding galvanization charging/discharging, hydrogen evolution reaction and oxygen evolution reaction performances.

New carbon for electrochemical energy storage and conversion

2019 ◽  
Vol 12 (04) ◽  
pp. 1950049 ◽  
Author(s):  
Xinqi Liang ◽  
Minghua Chen ◽  
Guoxiang Pan ◽  
Jianbo Wu ◽  
Xinhui Xia
Keyword(s):  
Energy Storage ◽  
Recent Progress ◽  
High Efficiency ◽  
Carbon Materials ◽  
Carbon Sources ◽  
Electrochemical Energy Storage ◽  
Energy Storage And Conversion ◽  
Active Materials ◽  
New Carbon Materials ◽  
Electrochemical Energy

The advancement of clean electrochemical technologies is highly related to the development of novel active materials. Especially, new carbon materials are playing great roles in the electrochemical energy storage and conversion devices. Herein, we discuss the recent progress on new carbon materials from several important aspects including new mold carbon sources, novel high-efficiency puffing method, tailored carbon arrays morphologies (vertical graphene and carbon nanotubes branch), and modified heteroatom (N and S)-doped carbon materials. Our perspective may shed a light on further study on new carbon materials for applications in energy storage and conversion.

Two- and three-dimensional graphene-based hybrid composites for advanced energy storage and conversion devices

2018 ◽  
Vol 6 (3) ◽  
pp. 702-734 ◽  
Author(s):  
Jalal Azadmanjiri ◽  
Vijay K. Srivastava ◽  
Parshant Kumar ◽  
Mostafa Nikzad ◽  
James Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Efficiency ◽  
Hybrid Composites ◽  
Three Dimensional ◽  
Energy Storage And Conversion ◽  
3D Graphene ◽  
2D And 3D

2D and 3D graphene-based hybrid composites are the most promising materials for a broad range of high-efficiency energy storage and conversion devices.

Strategies on regulating Zn2+ solvation structure for dendrites-free and side reactions-suppressed zinc-ion batteries

2022 ◽  
Author(s):  
Jin Cao ◽  
Dongdong Zhang ◽  
Xinyu Zhang ◽  
Zhiyuan Zeng ◽  
Jiaqian Qin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Low Cost ◽  
Zinc Ion ◽  
Side Reactions ◽  
Solvation Structure ◽  
Dendrites Growth

High‐safety and low‐cost aqueous zinc‐ion batteries (ZIBs) are an exceptionally compelling technology for grid‐scale energy storage, whereas the corrosion, hydrogen evolution reaction and dendrites growth of Zn anodes plague their...

Copper (0) Doping Makes Cobalt-Nickel Hydroxide a High-Efficiency Catalyst for Hydrogen Evolution Reaction

2018 ◽  
Vol 165 (13) ◽  
pp. H866-H871 ◽  
Author(s):  
Jingjing Bai ◽  
Qiangqiang Sun ◽  
Meng Zhou ◽  
Liyuan Wang ◽  
Yuqian Shen ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Nickel Hydroxide ◽  
High Efficiency ◽  
Cobalt Nickel

scholarly journals A Supramolecular Porous Organic Cage Platform Promotes Electrochemical Hydrogen Evolution from Water Catalyzed by Cobalt Porphyrins

2021 ◽  
Author(s):  
Peter T. Smith ◽  
Bahiru Punja Benke ◽  
Lun An ◽  
Younghoon Kim ◽  
Kimoon Kim ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Supramolecular Structure ◽  
Fold Increase ◽  
Faradaic Efficiency ◽  
Tafel Slope ◽  
Neutral Ph ◽  
Catalyst Film ◽  
Electrochemically Active ◽  
Cobalt Porphyrins

We report a supramolecular porous organic cage platform composed of cobalt porphyrins for catalyzing the electrochemical hydrogen evolution reaction (HER) from water at neutral pH. Owing to its permanent porosity, the supramolecular structure yields a catalyst film with a 5-fold increase in the number of electrochemically active cobalt atoms and an improvement in Tafel slope from 170 mV/decade to 119 mV/decade compared to a planar cobalt porphyrin analog, reaching activities over 19,000 turnovers for HER over a 24-hour period with 100% Faradaic efficiency.

High resolution electrochemical additive manufacturing of microstructured active materials: case study of MoSx as a catalyst for the hydrogen evolution reaction

2021 ◽  
Author(s):  
Christian Iffelsberger ◽  
Martin Pumera
Keyword(s):  
Additive Manufacturing ◽  
High Resolution ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Active Materials

It is demonstrate that following the principle of additive manufacturing, in high-resolution electrochemical additive manufacturing, MoSx structures can be constructed by electrochemically driven, localized and layered deposition of material.

Fe-Co-P multi-heterostructure arrays for efficient electrocatalytic water splitting

2021 ◽  
Author(s):  
Hanwen Xu ◽  
Jiawei Zhu ◽  
Pengyan Wang ◽  
Ding Chen ◽  
Chengtian Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Rational Design ◽  
Large Scale ◽  
High Efficiency ◽  
Bifunctional Catalysts

Rational design and construction of high-efficiency bifunctional catalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial for large-scale hydrogen production by water splitting. Herein, by a...

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