State-of-the-art progress in the rational design of layered double hydroxide based photocatalysts for photocatalytic and photoelectrochemical H2/O2 production

2021 ◽  
Vol 446 ◽  
pp. 214103
Author(s):  
Zhong-zhu Yang ◽  
Chang Zhang ◽  
Guang-ming Zeng ◽  
Xiao-fei Tan ◽  
Dan-lian Huang ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Rational Design ◽  
State Of The Art ◽  
Double Hydroxide ◽  
O2 Production

scholarly journals Engineering single-atomic ruthenium catalytic sites on defective nickel-iron layered double hydroxide for overall water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Panlong Zhai ◽  
Mingyue Xia ◽  
Yunzhen Wu ◽  
Guanghui Zhang ◽  
Junfeng Gao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Active Sites ◽  
Density Functional ◽  
Rational Design ◽  
Single Atom ◽  
Nickel Iron ◽  
Double Hydroxide

AbstractRational design of single atom catalyst is critical for efficient sustainable energy conversion. However, the atomic-level control of active sites is essential for electrocatalytic materials in alkaline electrolyte. Moreover, well-defined surface structures lead to in-depth understanding of catalytic mechanisms. Herein, we report a single-atomic-site ruthenium stabilized on defective nickel-iron layered double hydroxide nanosheets (Ru1/D-NiFe LDH). Under precise regulation of local coordination environments of catalytically active sites and the existence of the defects, Ru1/D-NiFe LDH delivers an ultralow overpotential of 18 mV at 10 mA cm−2 for hydrogen evolution reaction, surpassing the commercial Pt/C catalyst. Density functional theory calculations reveal that Ru1/D-NiFe LDH optimizes the adsorption energies of intermediates for hydrogen evolution reaction and promotes the O–O coupling at a Ru–O active site for oxygen evolution reaction. The Ru1/D-NiFe LDH as an ideal model reveals superior water splitting performance with potential for the development of promising water-alkali electrocatalysts.

Crystal structure of nickel manganese-layered double hydroxide@cobaltosic oxides on nickel foam towards high-performance supercapacitors

CrystEngComm ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 470-477 ◽  
Author(s):  
Huihua Peng ◽  
Chuan Jing ◽  
Jie Chen ◽  
Deyi Jiang ◽  
Xiaoying Liu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Layered Double Hydroxide ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Nickel Foam ◽  
Double Hydroxide ◽  
Nickel Manganese

Rational design of the crystal structures of electrode materials is considered as an important strategy to construct high-performance supercapacitors.

A free-standing manganese cobalt sulfide@cobalt nickel layered double hydroxide core–shell heterostructure for an asymmetric supercapacitor

2020 ◽  
Vol 49 (1) ◽  
pp. 196-202 ◽  
Author(s):  
Haoyan Liang ◽  
Tiesong Lin ◽  
Shengyao Wang ◽  
Henan Jia ◽  
Chun Li ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Cobalt Sulfide ◽  
Core Shell ◽  
Asymmetric Supercapacitor ◽  
Free Standing ◽  
Cobalt Nickel ◽  
Double Hydroxide

Rational design of self-supported electrode materials is important to develop high-performance supercapacitors.

Simple and cost effective fabrication of 3D porous core–shell Ni nanochains@NiFe layered double hydroxide nanosheet bifunctional electrocatalysts for overall water splitting

2019 ◽  
Vol 7 (38) ◽  
pp. 21722-21729 ◽  
Author(s):  
Zhengyang Cai ◽  
Xiuming Bu ◽  
Ping Wang ◽  
Wenqiang Su ◽  
Renjie Wei ◽  
...  
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxide ◽  
State Of The Art ◽  
Cost Effective ◽  
The State ◽  
Core Shell ◽  
Overall Water Splitting ◽  
Porous Core ◽  
Bifunctional Electrocatalysts ◽  
Double Hydroxide

Meticulously designed 3D porous core–shell Ni nanochains@NiFe LDH nanosheets bifunctional electrocatalysts outperform the state-of-the-art IrO2 (+)//Pt/C (−) electrodes and most of the reported LDH electrocatalysts for overall water splitting.

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