scholarly journals V 4 C 3 T x MXene: A promising active substrate for reactive surface modification and the enhanced electrocatalytic oxygen evolution activity

InfoMat ◽  
2020 ◽  
Vol 2 (5) ◽  
pp. 950-959 ◽  
Author(s):  
Cheng‐Feng Du ◽  
Xiaoli Sun ◽  
Hong Yu ◽  
Wei Fang ◽  
Yao Jing ◽  
...  
Keyword(s):  
Surface Modification ◽  
Oxygen Evolution ◽  
Reactive Surface ◽  
Active Substrate

Bifunctional citrate-Ni0.9Co0.1(OH)x layer coated fluorine-doped hematite for simultaneous hole extraction and injection towards efficient photoelectrochemical water oxidation

Nanoscale ◽  
2021 ◽  
Author(s):  
Peng Wang ◽  
Feng Li ◽  
Xuefeng Long ◽  
Tong Wang ◽  
Huan Chai ◽  
...  
Keyword(s):  
Surface Modification ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Surface Oxygen ◽  
Co Catalyst ◽  
Photoelectrochemical Water Oxidation

Surface modification by loading a water oxidation co-catalyst (WOC) is generally considered to be an efficient means to optimize the sluggish surface oxygen evolution reaction (OER) of hematite photoanode for...

Tunable surface modification of a hematite photoanode by a Co(salen)-based cocatalyst for boosting photoelectrochemical performance

2020 ◽  
Vol 10 (6) ◽  
pp. 1714-1723
Author(s):  
Ruiling Wang ◽  
Yasutaka Kuwahara ◽  
Kohsuke Mori ◽  
Yuyu Bu ◽  
Hiromi Yamashita
Keyword(s):  
Surface Modification ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Photoelectrochemical Performance

A water splitting photoanode composed of hematite (α-Fe2O3) nanorods modified with Co(salen) was proven to exhibit special photoelectrochemical oxygen evolution activity.

scholarly journals MXenes as a versatile platform for reactive surface modification and superior sodium‐ion storages

Exploration ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 20210024
Author(s):  
Jinjin Wang ◽  
Cheng‐Feng Du ◽  
Yaqing Xue ◽  
Xianyi Tan ◽  
Jinzhao Kang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Sodium Ion ◽  
Reactive Surface

Ultrafast surface modification of FeS nanosheet arrays with Fe–Ni bimetallic hydroxides for efficient oxygen evolution

2020 ◽  
Vol 835 ◽  
pp. 155298
Author(s):  
Qin-Wei Chen ◽  
Xin-Yu Zhang ◽  
Yi-Wen Dong ◽  
Bao-Yu Guo ◽  
Yu Ma ◽  
...  
Keyword(s):  
Surface Modification ◽  
Oxygen Evolution ◽  
Nanosheet Arrays

scholarly journals Surface Modification of Hematite Photoanodes for Improvement of Photoelectrochemical Performance

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 497 ◽  
Author(s):  
Lifei Xi ◽  
Kathrin Lange
Keyword(s):  
Surface Modification ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Surface Passivation ◽  
Earth Metal ◽  
Photoelectrochemical Performance ◽  
Onset Potential ◽  
Solar Water Splitting

Solar water splitting is a promising method for producing renewable fuels. Thermodynamically, the overall water splitting reaction is an uphill reaction involving a multiple electron transfer process. The oxygen evolution reaction (OER) has been identified as the bottleneck process. Hematite (α-Fe2O3) is one of the best photoanode material candidates due to its band gap properties and stability in aqueous solution. However, the reported efficiencies of hematite are notoriously lower than the theoretically predicted value mainly due to poor charge transfer and separation ability, short hole diffusion length as well as slow water oxidation kinetics. In this Review Article, several emerging surface modification strategies to reduce the oxygen evolution overpotential and thus to enhance the water oxidation reaction kinetics will be presented. These strategies include co-catalysts loading, photoabsorption enhancing (surface plasmonic metal and rare earth metal decoration), surface passivation layer deposition, surface chemical etching and surface doping. These methods are found to reduce charge recombination happening at surface trapping states, promote charge separation and diffusion, and accelerate water oxidation kinetics. The detailed surface modification methods, surface layer materials, the photoelectrochemical (PEC) performances including photocurrent and onset potential shift as well as the related proposed mechanisms will be reviewed.

scholarly journals Reduction of the Electrode Overpotential of the Oxygen Evolution Reaction by Electrode Surface Modification

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Cian-Tong Lu ◽  
Yen-Wen Chiu ◽  
Mei-Jing Li ◽  
Kan-Lin Hsueh ◽  
Ju-Shei Hung
Keyword(s):  
Surface Modification ◽  
Life Cycle ◽  
Energy Density ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Metal Mesh ◽  
Sn Whiskers ◽  
Protection Layer ◽  
Overall Resistance

Metal–air batteries exhibit high potential for grid-scale energy storage because of their high theoretical energy density, their abundance in the earth’s crust, and their low cost. In these batteries, the oxygen evolution reaction (OER) occurs on the air electrode during charging. This study proposes a method for improving the OER electrode performance. The method involves sequentially depositing a Ni underlayer, Sn whiskers, and a Ni protection layer on the metal mesh. Small and uniform gas bubbles form on the Ni/Sn/Ni mesh, leading to low overpotential and a decrease in the overall resistance of the OER electrode. The results of a simulated life cycle test indicate that the Ni/Sn/Ni mesh has a life cycle longer than 1,300 cycles when it is used as the OER electrode in 6 M KOH.

Investigations on the reactive surface modification of polycarbonate by surface-reactive injection molding

2004 ◽  
Vol 93 (3) ◽  
pp. 1186-1191 ◽  
Author(s):  
J. Nagel ◽  
M. Bräuer ◽  
B. Hupfer ◽  
K. Grundke ◽  
S. Schwarz ◽  
...  
Keyword(s):  
Surface Modification ◽  
Injection Molding ◽  
Reactive Surface

Strategic Surface Modification of TiO2 nanorods by WO3 and TiCl4 for the Enhancement in Oxygen Evolution Reaction

2016 ◽  
Vol 222 ◽  
pp. 1112-1119 ◽  
Author(s):  
Xiaoniu Peng ◽  
Chao He ◽  
Qingyun Liu ◽  
Xina Wang ◽  
Hanbin Wang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Tio2 Nanorods
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