Three-Dimensional and In Situ-Activated Spinel Oxide Nanoporous Clusters Derived from Stainless Steel for Efficient and Durable Water Oxidation

2020 ◽  
Vol 12 (12) ◽  
pp. 13971-13981
Author(s):  
Mingyong Cai ◽  
Weijian Liu ◽  
Xiao Luo ◽  
Changhao Chen ◽  
Rui Pan ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Water Oxidation ◽  
Three Dimensional ◽  
Spinel Oxide

scholarly journals Correction to “Three-Dimensional and In Situ-Activated Spinel Oxide Nanoporous Clusters Derived from Stainless Steel for Efficient and Durable Water Oxidation”

2020 ◽  
Vol 12 (16) ◽  
pp. 19243-19243
Author(s):  
Mingyong Cai ◽  
Weijian Liu ◽  
Xiao Luo ◽  
Changhao Chen ◽  
Rui Pan ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Water Oxidation ◽  
Three Dimensional ◽  
Spinel Oxide

In Situ Growth of Fe(Ni)OOH Catalyst on Stainless Steel for Water Oxidation

2017 ◽  
Vol 2 (7) ◽  
pp. 2230-2234 ◽  
Author(s):  
Ding Tang ◽  
Oluwaniyi Mabayoje ◽  
Yanqing Lai ◽  
Yexiang Liu ◽  
C. Buddie Mullins
Keyword(s):  
Stainless Steel ◽  
Water Oxidation ◽  
In Situ Growth

scholarly journals On the Fluctuation Induced Excess Conductivity in Stainless Steel Sheathed MgB2 Tapes

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Suchitra Rajput ◽  
Sujeet Chaudhary
Keyword(s):  
Magnetic Field ◽  
Experimental Data ◽  
Stainless Steel ◽  
Coherence Length ◽  
Three Dimensional ◽  
Excess Conductivity ◽  
Scaling Functions ◽  
Critical Fluctuations ◽  
Scaling Models

We report on the analyses of fluctuation induced excess conductivity in the - behavior in the in situ prepared MgB2 tapes. The scaling functions for critical fluctuations are employed to investigate the excess conductivity of these tapes around transition. Two scaling models for excess conductivity in the absence of magnetic field, namely, first, Aslamazov and Larkin model, second, Lawrence and Doniach model, have been employed for the study. Fitting the experimental - data with these models indicates the three-dimensional nature of conduction of the carriers as opposed to the 2D character exhibited by the HTSCs. The estimated amplitude of coherence length from the fitted model is ~21 Å.

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).

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