scholarly journals Fully Oxidized Ni–Fe Layered Double Hydroxide with 100% Exposed Active Sites for Catalyzing Oxygen Evolution Reaction

ACS Catalysis ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 6027-6032 ◽  
Author(s):  
Chunguang Kuai ◽  
Yan Zhang ◽  
Deyao Wu ◽  
Dimosthenis Sokaras ◽  
Linqin Mu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Double Hydroxide

scholarly journals Layered double hydroxide-based electrocatalysts for the oxygen evolution reaction: identification and tailoring of active sites, and superaerophobic nanoarray electrode assembly

2021 ◽  
Author(s):  
Daojin Zhou ◽  
Pengsong Li ◽  
Xiao Lin ◽  
Adam McKinley ◽  
Yun Kuang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Layered Double Hydroxides ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Double Hydroxide ◽  
Double Hydroxides

Opportunities and challenges in tailoring layered double hydroxides and constructing them into superaerophobic nanoarray electrodes for an efficient oxygen evolution reaction

scholarly journals 3D-printed NiFe-layered double hydroxide pyramid electrodes for enhanced electrocatalytic oxygen evolution reaction

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Jinhyuck Ahn ◽  
Yoo Sei Park ◽  
Sanghyeon Lee ◽  
Juchan Yang ◽  
Jaeyeon Pyo ◽  
...  
Keyword(s):  
Surface Area ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Step Method ◽  
Highly Active ◽  
3D Printed ◽  
Double Hydroxide

AbstractElectrochemical water splitting has been considered one of the most promising methods of hydrogen production, which does not cause environmental pollution or greenhouse gas emissions. Oxygen evolution reaction (OER) is a significant step for highly efficient water splitting because OER involves the four electron transfer, overcoming the associated energy barrier that demands a potential greater than that required by hydrogen evolution reaction. Therefore, an OER electrocatalyst with large surface area and high conductivity is needed to increase the OER activity. In this work, we demonstrated an effective strategy to produce a highly active three-dimensional (3D)-printed NiFe-layered double hydroxide (LDH) pyramid electrode for OER using a three-step method, which involves direct-ink-writing of a graphene pyramid array and electrodeposition of a copper conducive layer and NiFe-LDH electrocatalyst layer on printed pyramids. The 3D pyramid structures with NiFe-LDH electrocatalyst layers increased the surface area and the active sites of the electrode and improved the OER activity. The overpotential (η) and exchange current density (i0) of the NiFe-LDH pyramid electrode were further improved compared to that of the NiFe-LDH deposited Cu (NiFe-LDH/Cu) foil electrode with the same base area. The 3D-printed NiFe-LDH electrode also exhibited excellent durability without potential decay for 60 h. Our 3D printing strategy provides an effective approach for the fabrication of highly active, stable, and low-cost OER electrocatalyst electrodes.

Hierarchically porous FeNi3@FeNi layered double hydroxide nanostructures: One-step fast electrodeposition and highly efficient electrocatalytic performances for overall water splitting

2021 ◽  
Author(s):  
Zihao Liu ◽  
Shifeng Li ◽  
Fangfang Wang ◽  
Mingxia Li ◽  
Yonghong Ni
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hierarchically Porous ◽  
One Step ◽  
Double Hydroxide

FeNi-layered double hydroxide (LDH) is thought to be an excellent electrocatalyst for oxygen evolution reaction (OER), but it always shows extremely poor electrocatalytic activity toward hydrogen evolution reaction (HER) in...

LDH-derived phosphide/N-doped graphene oxide hierarchical electrocatalyst for enhanced oxygen evolution reaction

CrystEngComm ◽  
2022 ◽  
Author(s):  
Meng Ya Yang ◽  
Rong Zhao ◽  
Yi Liu ◽  
Hua Lin
Keyword(s):  
Graphene Oxide ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hierarchical Structure ◽  
Oxygen Evolution Reaction ◽  
High Efficient ◽  
Doped Graphene ◽  
Double Hydroxide

In this work, high efficient electrocatalyst Fe-Ni2P/N-GO with hierarchical structure was developed through phosphating NiFe-based layered double hydroxide (LDH) supported by N-doped graphene oxide (GO), which was assembled by the...

Template-directed synthesis of sulphur doped NiCoFe layered double hydroxide porous nanosheets with enhanced electrocatalytic activity for the oxygen evolution reaction

2018 ◽  
Vol 6 (7) ◽  
pp. 3224-3230 ◽  
Author(s):  
Li-Ming Cao ◽  
Jia-Wei Wang ◽  
Di-Chang Zhong ◽  
Tong-Bu Lu
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hydrogen Energy ◽  
Highly Efficient ◽  
Porous Nanosheets ◽  
Directed Synthesis ◽  
Double Hydroxide

The development of readily available, highly efficient and stable electrocatalysts for the oxygen evolution reaction (OER) is extremely significant to facilitate water splitting for the generation of clean hydrogen energy.

Recent advances in ternary layered double hydroxide electrocatalysts for the oxygen evolution reaction

2020 ◽  
Vol 44 (24) ◽  
pp. 9981-9997 ◽  
Author(s):  
Josué M. Gonçalves ◽  
Paulo R. Martins ◽  
Lucio Angnes ◽  
Koiti Araki
Keyword(s):  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
Design Synthesis ◽  
Recent Advances ◽  
Double Hydroxide

The recent advances in ternary layered double hydroxide electrocatalysts, including the strategies used for the design, synthesis, and evaluation of their performance for oxygen evolution reaction are reviewed in this account.

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