Mo-incorporated three-dimensional hierarchical ternary nickel-cobalt-molybdenum layer double hydroxide for high-efficiency water splitting

2021 ◽  
Author(s):  
Shrine Maria Nithya Jeghan ◽  
Nangyeong Kim ◽  
Gibaek Lee
Keyword(s):  
Water Splitting ◽  
High Efficiency ◽  
Three Dimensional ◽  
Layer Double Hydroxide ◽  
Nickel Cobalt ◽  
Double Hydroxide

Construction of a hierarchically structured, NiCo-Cu-based trifunctional electrocatalyst for efficient overall water splitting and 5-hydroxymethylfurfural oxidation

2021 ◽  
Author(s):  
Ruijuan Zheng ◽  
Chenhao Zhao ◽  
Jinhua Xiong ◽  
Xue Teng ◽  
Wu-Hua Chen ◽  
...  
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Three Dimensional ◽  
Nanowire Arrays ◽  
Overall Water Splitting ◽  
Nickel Cobalt ◽  
Double Hydroxide ◽  
Cu Foam

In this study, Cu nanowire arrays grown on a three-dimensional Cu foam substrate are modified by nickel-cobalt layered double hydroxide nanosheets (NiCoNSs/CuNWs), which can be used as a self-supporting trifunctional...

A Three-Dimensional ZnO/CdS/NiFe Layered Double Hydroxide Photoanode Coupled with a Cu2O Photocathode in a Tandem Cell for Overall Solar Water Splitting

NANO ◽  
2019 ◽  
Vol 14 (11) ◽  
pp. 1950146
Author(s):  
Jia Liu ◽  
Yinghua Zhang ◽  
Zhiming Bai ◽  
Zhian Huang ◽  
Yukun Gao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Layered Double Hydroxide ◽  
Three Dimensional ◽  
Photocurrent Density ◽  
Cds Nanoparticles ◽  
Zero Bias ◽  
Tandem Cell ◽  
Solar Water ◽  
Solar Water Splitting ◽  
Double Hydroxide

An integrated tandem photoelectrochemical (PEC) cell, composed of a three-dimensional (3D) ZnO/CdS/NiFe layered double hydroxide (LDH) core/shell/hierarchical nanowire arrays (NWAs) photoanode and a [Formula: see text]-Cu2O photocathode, was designed for unassisted overall solar water splitting in this study. The optical and photoelectrochemical characteristics of ZnO-based photoanodes and Cu2O photocathode were investigated. The results show that ZnO/CdS/NiFe LDH nanostructures offer significantly enhanced performances with a photocurrent density reaching 5.8[Formula: see text]mA[Formula: see text][Formula: see text][Formula: see text]cm[Formula: see text] at 0.9[Formula: see text]V and an onset potential as early as 0.1[Formula: see text]V (versus RHE). The enhancement can be attributed to the existence of CdS nanoparticles (NPs) which boosts the light absorption in visible region and enhances charge separation. Moreover, the introduction of NiFe LDH nanoplates, with unique hierarchical mesoporous architecture, promotes electrochemical reactions by providing more active sites as co-catalyst. On the above basis, the ZnO/CdS/NiFe LDH–Cu2O two-electrode tandem cell system was established. At zero bias, the device shows a photocurrent density of 0.4[Formula: see text]mA[Formula: see text][Formula: see text][Formula: see text]cm[Formula: see text] along with the corresponding solar-to-hydrogen (STH) conversion efficiency reaching 0.50%. Our results indicate that the tandem PEC cells consisting of metal–oxide–semiconductor photoelectrodes based on Earth-abundant and low-cost materials hold promising application potential for overall solar water splitting.

Crystal morphology evolution of Ni–Co layered double hydroxide nanostructure towards high-performance biotemplate asymmetric supercapacitors

CrystEngComm ◽  
2018 ◽  
Vol 20 (46) ◽  
pp. 7428-7434 ◽  
Author(s):  
Chuan Jing ◽  
Xiaoli Liu ◽  
Xiaoying Liu ◽  
Debin Jiang ◽  
Biqin Dong ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
High Performance ◽  
Crystal Morphology ◽  
Three Dimensional ◽  
Morphology Evolution ◽  
Porous Structures ◽  
Asymmetric Supercapacitors ◽  
Nickel Cobalt ◽  
One Step ◽  
Double Hydroxide

Hierarchical three-dimensional (3D) porous structures of nickel–cobalt layered double hydroxide (LDH) are grown on diatomite biotemplate via one-step hydrothermal method.

Free standing bimetallic nickel cobalt selenides nanosheets as three-dimensional electrocatalyst water splitting

2021 ◽  
pp. 115568
Author(s):  
Sujittra Poorahong ◽  
David J. Harding ◽  
Sittipong Keawmorakot ◽  
Mohamed Siaj
Keyword(s):  
Water Splitting ◽  
Three Dimensional ◽  
Free Standing ◽  
Nickel Cobalt

A Hydrogen‐Deficient Nickel–Cobalt Double Hydroxide for Photocatalytic Overall Water Splitting

2020 ◽  
Vol 59 (28) ◽  
pp. 11510-11515 ◽  
Author(s):  
Min Wang ◽  
Jia‐Qi Wang ◽  
Cong Xi ◽  
Chuan‐Qi Cheng ◽  
Cheng‐Qin Zou ◽  
...  
Keyword(s):  
Water Splitting ◽  
Overall Water Splitting ◽  
Nickel Cobalt ◽  
Double Hydroxide

New Insight into the Hierarchical Microsphere Evolution of Organic Three-Dimensional Layer Double Hydroxide: The Key Role of the Surfactant Template

Langmuir ◽  
2019 ◽  
Vol 35 (42) ◽  
pp. 13562-13569 ◽  
Author(s):  
Ping Zhang ◽  
Tao He ◽  
Peng Li ◽  
Xianzhe Zeng ◽  
Yun Huang
Keyword(s):  
Three Dimensional ◽  
Layer Double Hydroxide ◽  
Double Hydroxide ◽  
Insight Into

A three-dimensional nickel–chromium layered double hydroxide micro/nanosheet array as an efficient and stable bifunctional electrocatalyst for overall water splitting

Nanoscale ◽  
2018 ◽  
Vol 10 (41) ◽  
pp. 19484-19491 ◽  
Author(s):  
Wen Ye ◽  
Xiaoyu Fang ◽  
Xuebo Chen ◽  
Dongpeng Yan
Keyword(s):  
Renewable Energy ◽  
Water Splitting ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Three Dimensional ◽  
Bifunctional Electrocatalyst ◽  
Nanosheet Array ◽  
Nickel Chromium ◽  
Double Hydroxide

The development of bifunctional and stable non-noble metal electrocatalysts for the high-performance hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is very important and challenging for renewable energy.

A Hydrogen‐Deficient Nickel–Cobalt Double Hydroxide for Photocatalytic Overall Water Splitting

2020 ◽  
Vol 132 (28) ◽  
pp. 11607-11612
Author(s):  
Min Wang ◽  
Jia‐Qi Wang ◽  
Cong Xi ◽  
Chuan‐Qi Cheng ◽  
Cheng‐Qin Zou ◽  
...  
Keyword(s):  
Water Splitting ◽  
Overall Water Splitting ◽  
Nickel Cobalt ◽  
Double Hydroxide
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