Understanding the Catalytic Selectivity of Cobalt Hexacyanoferrate toward Oxygen Evolution in Seawater Electrolysis

ACS Catalysis ◽  
2021 ◽  
pp. 13140-13148
Author(s):  
Franziska S. Hegner ◽  
Felipe A. Garcés-Pineda ◽  
Jesús González-Cobos ◽  
Barbara Rodríguez-García ◽  
Mabel Torréns ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Catalytic Selectivity ◽  
Cobalt Hexacyanoferrate ◽  
Seawater Electrolysis

High-performance anion exchange membrane alkaline seawater electrolysis

2021 ◽  
Author(s):  
Yoo Sei Park ◽  
Jooyoung Lee ◽  
Myeong-Je Jang ◽  
Juchan Yang ◽  
Jae Hoon Jeong ◽  
...  
Keyword(s):  
Anion Exchange ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Anion Exchange Membrane ◽  
Hydrogen Energy ◽  
Highly Active ◽  
Production Of Hydrogen ◽  
Exchange Membrane ◽  
Seawater Electrolysis

Seawater electrolysis is a promising technology for the production of hydrogen energy and seawater desalination. To produce hydrogen energy through seawater electrolysis, highly active electrocatalysts for the oxygen evolution reaction...

Electrocatalytic Selective Oxygen Evolution of Carbon-Coated Na2Co1–xFexP2O7 Nanoparticles for Alkaline Seawater Electrolysis

ACS Catalysis ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 702-709 ◽  
Author(s):  
Hee Jo Song ◽  
Hyunseok Yoon ◽  
Bobae Ju ◽  
Dong-Yeop Lee ◽  
Dong-Wan Kim
Keyword(s):  
Oxygen Evolution ◽  
Carbon Coated ◽  
Seawater Electrolysis

scholarly journals Effects of Tin, Antimony and Molybdenum in Mn-W-O /Ir1-x-ySnyO2+0.5y/Ti Anodes for Oxygen Evolution in Seawater Electrolysis

1970 ◽  
Vol 8 (8) ◽  
pp. 39-43 ◽  
Author(s):  
Jagadeesh Bhattarai
Keyword(s):  
Grain Size ◽  
Global Warming ◽  
Hydrogen Production ◽  
Oxygen Evolution ◽  
Nacl Solution ◽  
Scientific World ◽  
Co2 Recycling ◽  
Anodic Deposition ◽  
Seawater Electrolysis

An attempt was made to enhance the oxygen evolution efficiency in seawater electrolysis by the addition of tin, antimony and molybdenum to Mn-W oxide electrocatalysts prepared by anodic deposition on the intermediate Ir1-x-ySnyO2+0.5y/Ti electrode. Ir1-x-ySnyO2+0.5y/Ti supported nanocrystalline γ-MnO2 type Mn-W-X-O(X=Sn,Sb,Mo) electrocatalysts with grain size of about 5-11 nm were tailored by anodic deposition. All the examined Mn-W-X(X=Sn,Sb,Mo)- O anodes showed the almost 100% oxygen evolution efficiency at 1000 A.m-2 in 0.5 M NaCl solution of pH 1 at 25°C. They guaranteed the stable anode performance of about 99.75-99.85% oxygen evolution efficiencies for more than five months. Keywords: Global warming; CO2 recycling; Oxygen evolution anode; Seawater electrolysis; Hydrogen production electrode. DOI: 10.3126/sw.v8i8.3844 Scientific World Vol.8(8) 2010 pp.39-43

scholarly journals The Effect of Antimony in the Intermediate IrO2-SnO2-Sb2O5 Oxide Layer on Titanium Substrate for Oxygen Evolution Mn1-x-yMoxSnyO2+x Anodes in Seawater Electrolysis

1970 ◽  
Vol 23 ◽  
pp. 21-32
Author(s):  
Jagadeesh Bhattarai
Keyword(s):  
Oxide Layer ◽  
Oxygen Evolution ◽  
Intermediate Layer ◽  
Electronic Conductivity ◽  
Titanium Substrate ◽  
Coating Solution ◽  
Intermediate Layers ◽  
Initial Oxygen ◽  
Co2 Recycling ◽  
Seawater Electrolysis

An attempt is made to find out the optimal compositions for the intermediate oxide layer of IrO2-SnO2-Sb2O5 in preventing insulating titanium oxide formation on titanium substrate for the oxygen evolution Mn1-x-yMoxSnyO2+x anodes in electrolysis of 0.5 M NaCl of pH 1 at 1000 A.m-2. Effects of antimony and iridium in the intermediate IrO2-SnO2-Sb2O5 layer are discussed. The 75 % of the iridium content in the intermediate layer of the oxygen evolution anodes can be substituted by SnO2 and small amount of Sb2O5 to increase the electronic conductivity of the intermediate layer as well as the activity of the Mn1-x-yMoxSnyO2+x/IrO2-SnO2-Sb2O5/Ti anodes for seawater electrolysis at pH 1. Although Sb5+ addition is effective in decreasing the Ir4+ concentration in the intermediate layer of the anodes, the Ir1-x-ySnxSbyO2+0.5y intermediate layers with the Sb5+/Sn4+ between 0.125-0.285 in the coating solution showed excellent performance of the oxygen evolution efficiency. All the examined manganese-molybdenum-tin triple oxides, Mn1-x-yMoxSnyO2+x, prepared by anodic deposition on the IrO2-SnO2-Sb2O5-coated titanium substrate showed around 99% initial oxygen evolution efficiency at a current density of 1000 A.m-2 in 0.5 M NaCl of pH 1 at 25ºC.Keywords: global CO2 recycling, hydrogen production electrode, IrO2-SnO2-Sb2O5 layer, 0.5 M NaCl, titanium substrate.DOI: 10.3126/jncs.v23i0.2093J. Nepal Chem. Soc., Vol. 23, 2008/2009Page: 21-32

Electrochemical characterization of degradation of oxygen evolution anode for seawater electrolysis

2014 ◽  
Vol 116 ◽  
pp. 152-157 ◽  
Author(s):  
Zenta Kato ◽  
Masaki Sato ◽  
Yusuke Sasaki ◽  
Koichi Izumiya ◽  
Naokazu Kumagai ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Electrochemical Characterization ◽  
Seawater Electrolysis
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