Morphology controlled surface sulfurized CoMn2O4 microspikes electrocatalyst for water splitting with excellent OER rate for binder-free electrocatalytic oxygen evolution

2021 ◽  
Author(s):  
Ali Bahadur ◽  
Waseem Hussain ◽  
Shahid Iqbal ◽  
Farman Ullah ◽  
Muhammad Shoaib ◽  
...  
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Noble Metals ◽  
Mixed Oxides ◽  
Binder Free ◽  
Synthesis Routes

Transition metal mixed oxides have drawn extensive interest as oxygen evolution electrocatalysts alternatives to noble metals-based material but generally involve prolonged synthesis routes and limited electrocatalytic activity and stability. Herein...

Recent progress in transition metal selenide electrocatalysts for water splitting

Nanoscale ◽  
2020 ◽  
Vol 12 (23) ◽  
pp. 12249-12262 ◽  
Author(s):  
Xinyuan Xia ◽  
Lujing Wang ◽  
Ning Sui ◽  
Vicki L. Colvin ◽  
William W. Yu
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Recent Progress ◽  
Metal Selenides

Transition metal selenides have promising electrocatalytic activity on both hydrogen and oxygen evolution reactions.

Hierarchically porous FeNi3@FeNi layered double hydroxide nanostructures: One-step fast electrodeposition and highly efficient electrocatalytic performances for overall water splitting

2021 ◽  
Author(s):  
Zihao Liu ◽  
Shifeng Li ◽  
Fangfang Wang ◽  
Mingxia Li ◽  
Yonghong Ni
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hierarchically Porous ◽  
One Step ◽  
Double Hydroxide

FeNi-layered double hydroxide (LDH) is thought to be an excellent electrocatalyst for oxygen evolution reaction (OER), but it always shows extremely poor electrocatalytic activity toward hydrogen evolution reaction (HER) in...

Variation of Electrocatalytic Activity of Isostructural Oxides Sr2LaFeMnO7 and Sr2LaCoMnO7 for Hydrogen and Oxygen-Evolution Reactions

2021 ◽  
Author(s):  
Chandana C.W. Kananke-Gamage ◽  
Farshid Ramezanipour
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Charge Transport ◽  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Electronic Configuration

The effect of the electronic configuration of transition metal on electrocatalytic activity, charge transport, and magnetic properties is demonstrated through investigation of Sr2LaFeMnO7 and Sr2LaCoMnO7. The two compounds are isostructural...

Template-directed synthesis of sulphur doped NiCoFe layered double hydroxide porous nanosheets with enhanced electrocatalytic activity for the oxygen evolution reaction

2018 ◽  
Vol 6 (7) ◽  
pp. 3224-3230 ◽  
Author(s):  
Li-Ming Cao ◽  
Jia-Wei Wang ◽  
Di-Chang Zhong ◽  
Tong-Bu Lu
Keyword(s):  
Water Splitting ◽  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Hydrogen Energy ◽  
Highly Efficient ◽  
Porous Nanosheets ◽  
Directed Synthesis ◽  
Double Hydroxide

The development of readily available, highly efficient and stable electrocatalysts for the oxygen evolution reaction (OER) is extremely significant to facilitate water splitting for the generation of clean hydrogen energy.

Synthesis of CaMn2O4-related electrocatalyst for oxygen evolution electrode of water-splitting

2014 ◽  
Vol 1640 ◽  
Author(s):  
Yuya Taki ◽  
Zhenquan Tan ◽  
Satoshi Ohara ◽  
Takashi Itoh ◽  
Yoshiaki Nakano ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electric Power ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Fossil Fuels ◽  
Weight Ratio ◽  
Synthesis Condition ◽  
Carbon Paste ◽  
Oxygen Evolving

ABSTRACTWater-splitting by using electric power produced by solar cells is promising system to produce hydrogen without fossil fuels. Oxygen evolving catalyst is, however, major problem to prevent using this system widely because precious materials are used in the catalyst. Considering from the photosynthesis II of plants, the compound of Ca-Mn-O is one of the candidates for the oxygen evolving catalyst. In this study, the synthesis condition and the oxygen evolving electrocatalytic activity of CaMn2O4•xH2O are investigated. The overpotential at 0.1 mA/cm2 was 0.28 V when using the electrode of carbon paste and CaMn2O4•H2O with the weight ratio of 3:1.

An iron-doped cobalt phosphide nano-electrocatalyst derived from a metal–organic framework for efficient water splitting

2019 ◽  
Vol 48 (44) ◽  
pp. 16555-16561 ◽  
Author(s):  
Can Lin ◽  
Pengyan Wang ◽  
Huihui Jin ◽  
Jiahuan Zhao ◽  
Ding Chen ◽  
...  
Keyword(s):  
Transition Metal ◽  
Water Splitting ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Framework ◽  
Cobalt Phosphide ◽  
Iron Doped ◽  
Metal Organic ◽  
Organic Framework

Fe0.27Co0.73P NPs exhibit excellent oxygen evolution reaction activity, which is even higher than that exhibited by the commercial IrO2 and the most recently reported transition metal-based electrocatalysts.

Ligand-Assisted Co-Assembly Approach toward Mesoporous Hybrid Catalysts of Transition-Metal Oxides and Noble Metals: Photochemical Water Splitting

2015 ◽  
Vol 127 (31) ◽  
pp. 9189-9193 ◽  
Author(s):  
Ben Liu ◽  
Chung-Hao Kuo ◽  
Jiejie Chen ◽  
Zhu Luo ◽  
Srinivas Thanneeru ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Water Splitting ◽  
Transition Metal Oxides ◽  
Noble Metals ◽  
Hybrid Catalysts

Iridium–ruthenium single phase mixed oxides for oxygen evolution: Composition dependence of electrocatalytic activity

2012 ◽  
Vol 70 ◽  
pp. 158-164 ◽  
Author(s):  
Lars-Erik Owe ◽  
Mikhail Tsypkin ◽  
Kia S. Wallwork ◽  
Richard G. Haverkamp ◽  
Svein Sunde
Keyword(s):  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Single Phase ◽  
Composition Dependence ◽  
Mixed Oxides

Inception of molybdate as a “pore forming additive” to enhance the bifunctional electrocatalytic activity of nickel and cobalt based mixed hydroxides for overall water splitting

Nanoscale ◽  
2019 ◽  
Vol 11 (36) ◽  
pp. 16896-16906 ◽  
Author(s):  
Sagar Ganguli ◽  
Sourav Ghosh ◽  
Soumik Das ◽  
Venkataramanan Mahalingam
Keyword(s):  
Transition Metal ◽  
Surface Area ◽  
Water Splitting ◽  
Electrocatalytic Activity ◽  
Low Cost ◽  
Copper Substrate ◽  
Metal Hydroxides ◽  
Overall Water Splitting ◽  
Structure Morphology ◽  
Transition Metal Hydroxides

Understanding the effect of molybdate incorporation on the structure, morphology, porosity, surface area and etching-induced enhanced electrocatalytic water splitting of low-cost transition metal hydroxides grown on inexpensive copper substrate.

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