In-situ synthesis of nickel seleno-sulfide nano-rod arrays on three-dimensional nickel foam as efficient electrocatalyst for water oxidation

2022 ◽  
pp. 139886
Author(s):  
Karthik S Bhat ◽  
Sarkar
Keyword(s):  
Water Oxidation ◽  
Nickel Foam ◽  
Three Dimensional ◽  
In Situ Synthesis

scholarly journals An aqueous preoxidation method for monolithic perovskite electrocatalysts with enhanced water oxidation performance

2016 ◽  
Vol 2 (10) ◽  
pp. e1600495 ◽  
Author(s):  
Bo-Quan Li ◽  
Cheng Tang ◽  
Hao-Fan Wang ◽  
Xiao-Lin Zhu ◽  
Qiang Zhang
Keyword(s):  
Water Oxidation ◽  
Fenton Reaction ◽  
Nickel Foam ◽  
Three Dimensional ◽  
Active Phase ◽  
Perovskite Oxides ◽  
High Temperature Annealing ◽  
Current Collectors ◽  
Oxidation Performance

Perovskite oxides with poor conductivity call for three-dimensional (3D) conductive scaffolds to demonstrate their superb reactivities for oxygen evolution reaction (OER). However, perovskite formation usually requires high-temperature annealing at 600° to 900°C in air, under which most of the used conductive frameworks (for example, carbon and metal current collectors) are reductive and cannot survive. We propose a preoxidization coupled electrodeposition strategy in which Co2+ is preoxidized to Co3+ through cobalt Fenton reaction in aqueous solution, whereas the reductive nickel framework is well maintained during the sequential annealing under nonoxidative atmosphere. The in situ–generated Co3+ is inherited into oxidized perovskites deposited on 3D nickel foam, rendering the monolithic perovskite electrocatalysts with extraordinary OER performance with an ultralow overpotential of 350 mV required for 10 mA cm−2, a very small Tafel slope of 59 mV dec−1, and superb stability in 0.10 M KOH. Therefore, we inaugurate a unique strategy for in situ hybridization of oxidative active phase with reductive framework, affording superb reactivity of perovskite electrocatalyst for efficient water oxidation.

In situ synthesis of quasi-needle-like bimetallic organic frameworks on highly porous graphene scaffolds for efficient electrocatalytic water oxidation

2020 ◽  
Vol 56 (21) ◽  
pp. 3135-3138 ◽  
Author(s):  
Behnam Nourmohammadi Khiarak ◽  
Mahdi Hasanzadeh ◽  
Majdoddin Mojaddami ◽  
Hossein Shahriyar Far ◽  
Abdolreza Simchi
Keyword(s):  
Water Oxidation ◽  
Electrocatalytic Activity ◽  
Three Dimensional ◽  
In Situ Synthesis ◽  
One Dimensional ◽  
Porous Graphene ◽  
Highly Porous

We present enhanced electrocatalytic activity of three-dimensional graphene scaffolds by decoration with one-dimensional CoxNi1−x MOF nanostructures (0 ≤ x ≤ 1).

Exploring Nature's plasticity with a flexible probing tool, and finding new ways for its electronic distribution

2002 ◽  
Vol 30 (2) ◽  
pp. 78-82 ◽  
Author(s):  
M. Beier ◽  
M. Baum ◽  
H. Rebscher ◽  
R. Mauritz ◽  
A. Wixmerten ◽  
...  
Keyword(s):  
Three Dimensional ◽  
In Situ Synthesis ◽  
Light Modulation ◽  
Genomic Assays ◽  
Electronic Distribution ◽  
Spatial Light Modulation ◽  
Microarray Fabrication ◽  
Set Up ◽  
Microarray Format

Concepts and results are described for the use of a single, but extremely flexible, probing tool to address a wide variety of genomic questions. This is achieved by transforming genomic questions into a software file that is used as the design scheme for potentially any genomic assay in a microarray format. Microarray fabrication takes place in three-dimensional microchannel reaction carriers by in situ synthesis based on spatial light modulation. This set-up allows for maximum flexibility in design and realization of genomic assays. Flexibility is achieved at the molecular, genomic and assay levels. We have applied this technology to expression profiling and genotyping experiments.

In situ synthesis of NiSe@CoP core–shell nanowire arrays on nickel foam as a highly efficient and robust electrode for electrochemical hydrogen generation in both alkaline and acidic media

2018 ◽  
Vol 8 (1) ◽  
pp. 128-133 ◽  
Author(s):  
Yuan-Zi Xu ◽  
Cheng-Zong Yuan ◽  
Zi-Wei Liu ◽  
Xue-Ping Chen
Keyword(s):  
Hydrogen Generation ◽  
Nickel Foam ◽  
In Situ Synthesis ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Acidic Media ◽  
Highly Efficient ◽  
Efficient Generation

The efficient generation of hydrogen through the electro-splitting of water has attracted great attention.

CaMoO4 nanosheet arrays for efficient and durable water oxidation electrocatalysis under alkaline conditions

2018 ◽  
Vol 54 (40) ◽  
pp. 5066-5069 ◽  
Author(s):  
Ying Gou ◽  
Qin Liu ◽  
Xifeng Shi ◽  
Abdullah M. Asiri ◽  
Jianming Hu ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Nickel Foam ◽  
Alkaline Water ◽  
Nanosheet Arrays ◽  
Alkaline Conditions ◽  
Catalyst Electrode

CaMoO4 nanosheet arrays grown in situ on nickel foam (CaMoO4/NF) act as a superior 3D catalyst electrode for alkaline water oxidation with high long-term durability.

In situ synthesis of FeP-decorated Ti–Fe2O3: an effective strategy to improve the interfacial charge transfer in the photoelectrochemical water oxidation reaction

2019 ◽  
Vol 9 (20) ◽  
pp. 5812-5818 ◽  
Author(s):  
Qijing Bu ◽  
Shuo Li ◽  
Qiannan Wu ◽  
Yanhong Lin ◽  
Dejun Wang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Water Oxidation ◽  
Oxidation Reaction ◽  
In Situ Synthesis ◽  
Effective Strategy ◽  
Interfacial Charge Transfer ◽  
Efficient Charge ◽  
Interfacial Charge ◽  
Photoelectrochemical Water Oxidation

The unprecedented FeP/Ti–Fe2O3 possesses the advantages of efficient charge transfer in the bulk photoanode and at the interface of the photoanode and the electrolyte.

Sign in / Sign up

Export Citation Format

Share Document