Au Nanowires@Pd-Polyethylenimine Nanohybrids as Highly Active and Methanol-Tolerant Electrocatalysts toward Oxygen Reduction Reaction in Alkaline Media

ACS Catalysis ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 11287-11295 ◽  
Author(s):  
Qi Xue ◽  
Juan Bai ◽  
Congcong Han ◽  
Pei Chen ◽  
Jia-Xing Jiang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Highly Active ◽  
Methanol Tolerant ◽  
Au Nanowires

Highly active bimetallic CuFe–N–C electrocatalysts for oxygen reduction reaction in alkaline media

2019 ◽  
Vol 71 ◽  
pp. 234-241 ◽  
Author(s):  
Yun Sik Kang ◽  
Yoonhye Heo ◽  
Jae Young Jung ◽  
Yeonsun Sohn ◽  
Soo-Hyoung Lee ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Highly Active

scholarly journals Electrochemical Oxygen Reduction Reaction Performance of Water Hyacinth Derived Porous Non-precious Electrocatalyst in Alkaline Media

2020 ◽  
Vol 141 ◽  
pp. 01004
Author(s):  
Kriangsak Ketpang ◽  
Jenkamol Prathum ◽  
Punnarut Juprasat ◽  
Wararak Junla ◽  
Kittisak Wichianwat ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Water Hyacinth ◽  
Low Cost ◽  
Linear Sweep Voltammetry ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Catalyst Loading ◽  
High Porosity ◽  
Highly Active

This research studied the possibility of converting water hyacinth biomass into the porous non-precious oxygen reduction reaction (ORR) electrocatalyst using a simple, low cost and scalable autogenic pressure method. The electrocatalyst was prepared by thermally annealing water hyacinth root contained ZnCl2 at 700oC under autogenic pressure conditions. The phase of the catalyst was the mixture of carbon and metal oxide. In addition, rough surface morphology and high porosity were clearly observed using scanning electron microscope. The synthesized catalyst was then determined the ORR performance by cyclic voltammetry (CV) and linear sweep voltammetry (LSV) techniques under O2 saturated KOH solution. The ORR performance increased as the catalyst loading was increased and the optimum catalyst loading was found to be 1.5 mg/cm2 which generated the Eonset and E1/2 value of 0.93 V and 0.80 V vs. RHE, respectively. Furthermore, the E1/2 value of the synthesized catalyst was 230 and 130 mV greater than the catalyst synthesized without ZnCl2 and commercial carbon (VXC-72R). ORR durability study suggested that the prepared catalyst was durable to operate ORR for 5000 cycles in alkaline media. These results suggested that the autogenic pressure conditions would be a promising technique to prepare highly active and durable biomass derived ORR electrocatalyst.

Enhanced electrocatalytic activity of nitrogen-doped multi-walled carbon nanotubes towards the oxygen reduction reaction in alkaline media

RSC Advances ◽  
2015 ◽  
Vol 5 (73) ◽  
pp. 59495-59505 ◽  
Author(s):  
Merilin Vikkisk ◽  
Ivar Kruusenberg ◽  
Sander Ratso ◽  
Urmas Joost ◽  
Eugene Shulga ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Nitrogen Doped ◽  
Highly Active ◽  
Multi Walled Carbon Nanotubes ◽  
Nitrogen Doped Carbon ◽  
Walled Carbon Nanotubes

Nitrogen-doped carbon nanotube materials derived from dicyandiamide and cyanamide are highly active electrocatalysts for oxygen reduction reaction in alkaline media.

Carbon nanobowls supported chemical functionalized PtRh nanocrystals: A highly active and methanol tolerant electrocatalyst towards oxygen reduction reaction

2021 ◽  
Author(s):  
Ze-Nong Zhang ◽  
Boqiang Miao ◽  
Wu Zhu-Qing ◽  
Pei Chen ◽  
Xue Xiao ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Direct Methanol Fuel Cells ◽  
Reduction Reaction ◽  
Highly Active ◽  
Direct Methanol ◽  
Methanol Tolerant ◽  
Methanol Fuel Cells

The cathodic oxygen reduction reaction (ORR) is a key half-reaction for the direct methanol fuel cells (DMFCs). Enhancing the electroactivity and selectivity of cathodic Pt-based ORR electrocatalysts is pivotal for...

scholarly journals Shape controlled synthesis of porous tetrametallic PtAgBiCo nanoplates as highly active and methanol-tolerant electrocatalyst for oxygen reduction reaction

2017 ◽  
Vol 8 (6) ◽  
pp. 4292-4298 ◽  
Author(s):  
Azhar Mahmood ◽  
Nanhong Xie ◽  
Muhammad Aizaz Ud Din ◽  
Faisal Saleem ◽  
Haifeng Lin ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Crystal Symmetry ◽  
Controlled Synthesis ◽  
Synthetic Route ◽  
Highly Active ◽  
Oxidative Etching ◽  
Methanol Tolerant ◽  
Shape Controlled

We present a new two-step synthetic route combining the concepts of crystal symmetry, seed ratio and oxidative etching that yields tetrametallic PtAgBiCo nanoplates.

Mn2O3 oxide with bixbyite structure for the electrochemical oxygen reduction reaction in alkaline media: Highly active if properly manipulated

2021 ◽  
Vol 367 ◽  
pp. 137378
Author(s):  
Anna S. Ryabova ◽  
Sergey Ya. Istomin ◽  
Kirill A. Dosaev ◽  
Antoine Bonnefont ◽  
Joke Hadermann ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Highly Active ◽  
Electrochemical Oxygen

scholarly journals Highly active and stable AuNi dendrites as an electrocatalyst for the oxygen reduction reaction in alkaline media

2016 ◽  
Vol 4 (45) ◽  
pp. 17828-17837 ◽  
Author(s):  
Jiali Wang ◽  
Fuyi Chen ◽  
Yachao Jin ◽  
Roy L. Johnston
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Term Stability ◽  
Long Term Stability ◽  
Highly Active ◽  
Orr Activity

AuNi hierarchical dendrites were fabricated by a facile electrodeposition and dealloying method with exceptional ORR activity and remarkable long-term stability.

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