Cross-Linked Co3O4 Nanowalls Synthesized by Electrochemical Oxidation of Metallic Cobalt Layer for Oxygen Evolution

2012 ◽  
Vol 1 (2) ◽  
pp. H8-H10 ◽  
Author(s):  
N. Zhang ◽  
Y. Fan ◽  
H. Fan ◽  
H. Shao ◽  
J. Wang ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Oxygen Evolution ◽  
Metallic Cobalt ◽  
Cobalt Layer

Synergistic Coupling of Metallic Cobalt Nitride Nanofibers and IrOx Nanoparticle Catalysts for Stable Oxygen Evolution

2018 ◽  
Vol 30 (17) ◽  
pp. 5941-5950 ◽  
Author(s):  
Su-Ho Cho ◽  
Ki Ro Yoon ◽  
Kihyun Shin ◽  
Ji-Won Jung ◽  
Chanhoon Kim ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Metallic Cobalt ◽  
Nanoparticle Catalysts ◽  
Stable Oxygen

Cobalt nitrides as a class of metallic electrocatalysts for the oxygen evolution reaction

2016 ◽  
Vol 3 (2) ◽  
pp. 236-242 ◽  
Author(s):  
Pengzuo Chen ◽  
Kun Xu ◽  
Yun Tong ◽  
Xiuling Li ◽  
Shi Tao ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electron Delocalization ◽  
Metallic Cobalt ◽  
Highly Efficient

Metallic cobalt nitrides arising from electron delocalization modulation have been proven to be highly efficient OER electrocatalysts.

scholarly journals Water Electrolysis Anode Based on 430 Stainless Steel Coated with Cobalt Recycled from Li-Ion Batteries

Recycling ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 42 ◽  
Author(s):  
Eric Garcia ◽  
Hosane Taroco
Keyword(s):  
Stainless Steel ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Discharge ◽  
Water Electrolysis ◽  
Li Ion Battery ◽  
Acid Dissolution ◽  
430 Stainless Steel ◽  
Cobalt Layer ◽  
Li Ion

In this paper, a new environmentally-friendly anode for hydrogen production was developed based on 430 stainless steel with an electrodeposited cobalt layer. The novelty of this work is the cobalt source once the electrodeposition bath was obtained from acid dissolution of a spent Li-ion battery cathode. The oxygen evolution reaction on electrodeposited cobalt in 1 M KOH is compatible with the E. Kobussen mechanism. The water discharge is related with reaction determinant step in low overpotential. The cobalt electrodeposition (3 Ccm−2) promotes a significant improvement of 430 stainless steel anodic properties for oxygen evolution reaction. When the overpotential reaches 370 mV, the density current for 430 stainless steel with electrodeposit cobalt is 19 mA·cm−2 against 0.80 mA·cm−2 for 430 stainless steel without cobalt. Thus, the anode construction described in this paper is an excellent option for Li-ion battery recycling.

Metallic S‐CoTe with Surface Reconstruction Activated by Electrochemical Oxidation for Oxygen Evolution Catalysis

Small ◽  
2021 ◽  
pp. 2102027
Author(s):  
Lei Yang ◽  
Hongye Qin ◽  
Zihao Dong ◽  
Tongzhou Wang ◽  
Guichang Wang ◽  
...  
Keyword(s):  
Electrochemical Oxidation ◽  
Oxygen Evolution ◽  
Surface Reconstruction

scholarly journals 3D Co-Ni-C Network from Milk as Competitive Bifunctional Catalysts for Methanol and Urea Electrochemical Oxidation

Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 844
Author(s):  
Dana Ao ◽  
Yue Shi ◽  
Shuyuan Li ◽  
Ying Chang ◽  
Aiju Xu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Carbon Source ◽  
Electrochemical Oxidation ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
3D Structure ◽  
Bifunctional Catalysts ◽  
Biomass Carbon ◽  
Highly Active ◽  
Wastewater Pollution

Methanol oxidation (MOR) and urea oxidation (UOR) have been considered for new types of fuel cells, but the lack of highly active nonnoble metal catalysts restricts such cells. A NiCo-modified biomass carbon (milk as the carbon source)-based catalyst with a 3D structure is synthesized by using salt templates. The results show that 3D-C-NiCo (1:1) exhibits excellent MOR and UOR properties with a potential of 1.33 V vs. RHE and 1.35 V vs. RHE at 10 mA cm−2, respectively. MOR and UOR reactions not only can replace the oxygen evolution reaction (OER) in consumption of electrolytic water but also can effectively degrade wastewater pollution rich in methanol and urea.

scholarly journals Modified lead dioxide for organic wastewater treatment: Physicochemical properties and electrocatalytic activity

2019 ◽  
Vol 84 (2) ◽  
pp. 187-198 ◽  
Author(s):  
Olesia Shmychkova ◽  
Tatiana Luk’yanenko ◽  
Larisa Dmirtikova ◽  
Alexander Velichenko
Keyword(s):  
Wastewater Treatment ◽  
Physicochemical Properties ◽  
Electrochemical Oxidation ◽  
Oxygen Evolution ◽  
Electrocatalytic Activity ◽  
Lead Dioxide ◽  
Chemical Properties ◽  
Destruction Rate ◽  
Physico Chemical ◽  
Pbo2 Anode

An investigation is reported on lead dioxide electrodeposition from methanesulfonate electrolytes additionally containing Ni2+ ions. It is shown that lead dioxide electrodes micromodified by nickel have different physico-chemical properties vs. nonmodified PbO2-anodes that are formed during the deposition. Electrocatalytical reactivity of electrodes involved in comparison to both the oxygen evolution, as well as to the electrooxidation of 2,4- dichlorophenoxyacetic (2,4-D) acid is investigated. Processes of electrochemical oxidation of 2,4-D on various materials occur qualitatively with the same mechanism and differ only in the rate. It is shown that the Ni-PbO2-anode possesses the highest electrocatalytic activity: the destruction rate of 2,4-D on it increases in 1.5 times in comparison with nonmodified lead dioxide. The COD of a 0.4 mM solution of 2,4-D, determined by the dichromate method, is 90.0 mg dm-3 which is 94 % of the theoretical value.

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