scholarly journals Triangular Ag–Pd alloy nanoprisms: rational synthesis with high-efficiency for electrocatalytic oxygen reduction

Nanoscale ◽  
2014 ◽  
Vol 6 (20) ◽  
pp. 11738-11743 ◽  
Author(s):  
Lin Xu ◽  
Zhimin Luo ◽  
Zhanxi Fan ◽  
Xiao Zhang ◽  
Chaoliang Tan ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Electrocatalytic Activity ◽  
High Efficiency ◽  
Galvanic Replacement ◽  
Electrocatalytic Oxygen Reduction ◽  
Pd Alloy ◽  
Co Reduction

Triangular Ag–Pd alloy nanoprisms are generated by using Ag nanoprisms as templates through galvanic replacement and co-reduction of Ag+/Pd2+. These Ag–Pd nanoprisms exhibit superior electrocatalytic activity due to the alloyed Ag–Pd composition and dominant {111} facets.

Bimetallic Cu–Pd alloy multipods and their highly electrocatalytic performance for formic acid oxidation and oxygen reduction

2017 ◽  
Vol 5 (9) ◽  
pp. 4421-4429 ◽  
Author(s):  
Dong Chen ◽  
Pengcheng Sun ◽  
Hui Liu ◽  
Jun Yang
Keyword(s):  
Formic Acid ◽  
Oxygen Reduction ◽  
Formic Acid Oxidation ◽  
Acid Oxidation ◽  
Galvanic Replacement ◽  
Galvanic Replacement Reaction ◽  
Replacement Reaction ◽  
Electrocatalytic Performance ◽  
Pd Alloy

Nanoscale Cu–Pd alloy multipods were synthesized via the galvanic replacement reaction for catalyzing formic acid oxidation and oxygen reduction.

Ta and Nb co-doped TiO2 and its carbon-hybrid materials for supporting Pt–Pd alloy electrocatalysts for PEM fuel cell oxygen reduction reaction

2014 ◽  
Vol 2 (32) ◽  
pp. 12681-12685 ◽  
Author(s):  
Yan-Jie Wang ◽  
David P. Wilkinson ◽  
Vladimir Neburchilov ◽  
Chaojie Song ◽  
Alan Guest ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Hybrid Materials ◽  
Electrocatalytic Activity ◽  
Pem Fuel Cell ◽  
Reduction Reaction ◽  
Doped Tio2 ◽  
Pd Alloy ◽  
Co Doped

The addition of Ta0.01Nb0.03Ti0.96O2 improves the electrocatalytic activity and stability of carbon for the oxygen reduction reaction.

Pyridinic nitrogen-rich carbon nanocapsules from a bioinspired polydopamine derivative for highly efficient electrocatalytic oxygen reduction

2017 ◽  
Vol 5 (2) ◽  
pp. 519-523 ◽  
Author(s):  
Zhengran Yi ◽  
Zheye Zhang ◽  
Shuai Wang ◽  
Gaoquan Shi
Keyword(s):  
Oxygen Reduction ◽  
Alkaline Medium ◽  
Electrocatalytic Activity ◽  
Doping Content ◽  
Highly Efficient ◽  
Electrocatalytic Oxygen Reduction ◽  
N Doping ◽  
Carbon Nanocapsules ◽  
Pyridinic N ◽  
Pyridinic Nitrogen

A novel bioinspired polydopamine derivative was prepared by self-polymerization of 6-(2-aminoethyl)-3-hydroxypyridin-2(1H)-one in an alkaline medium. It could be used as precursor to produce pyridinic N-rich carbon nanocapsules with a desired N doping content and superior electrocatalytic activity and stability for the ORR.

scholarly journals Mn-Ni-Co-O Spinel Oxides towards Oxygen Reduction Reaction in Alkaline Medium: Mn0.5Ni0.5Co2O4/C Synergism and Cooperation

Catalysts ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1059
Author(s):  
Thabo Matthews ◽  
Tarekegn Heliso Dolla ◽  
Sandile Surprise Gwebu ◽  
Tebogo Abigail Mashola ◽  
Lihle Tshepiso Dlamini ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Surface Area ◽  
Electrocatalytic Activity ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Electrocatalytic Oxygen Reduction ◽  
Spinel Oxides ◽  
A Current

Mn-doped spinel oxides MnxNi1−xCo2O4 (x = 0, 0.3, 0.5, 0.7, and 1) were synthesized using the citric acid-assisted sol–gel method. The Mn0.5Ni0.5Co2O4 (x = 0.5) supported on carbon nanosheets, Mn0.5Ni0.5Co2O4/C, was also prepared using the same method employing NaCl and glucose as a template and carbon source, respectively, followed by pyrolysis under an inert atmosphere. The electrocatalytic oxygen reduction reaction (ORR) activity was performed in alkaline media. Cyclic voltammetry (CV) was used to investigate the oxygen reduction performance of MnxNi1−xCo2O4 (x = 0, 0.3, 0.5, 0.7, and 1), and Mn0.5Ni0.5Co2O4 was found to be the best-performing electrocatalyst. Upon supporting the Mn0.5Ni0.5Co2O4 on a carbon sheet, the electrocatalytic activity was significantly enhanced owing to its large surface area and the improved charge transfer brought about by the carbon support. Rotating disk electrode studies show that the ORR electrocatalytic activity of Mn0.5Ni0.5Co2O4/C proceeds via a four-electron pathway. Mn0.5Ni0.5Co2O4/C was found to possess E1/2(V) = 0.856, a current density of 5.54 mA cm−2, and a current loss of approximately 0.11% after 405 voltammetric scan cycles. This study suggests that the interesting electrocatalytic performance of multimetallic transition metal oxides can be further enhanced by supporting them on conductive carbon materials, which improve charge transfer and provide a more active surface area.

Electrocatalytic activity of electrochemically dealloyed PdCu3 intermetallic compound towards oxygen reduction reaction in acidic media

2018 ◽  
Vol 6 (30) ◽  
pp. 14828-14837 ◽  
Author(s):  
Takao Gunji ◽  
Seung Hyo Noh ◽  
Fuma Ando ◽  
Toyokazu Tanabe ◽  
Byungchan Han ◽  
...  
Keyword(s):  
Intermetallic Compound ◽  
Carbon Black ◽  
Ethylene Glycol ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Electrocatalytic Activity ◽  
Reduction Reaction ◽  
Acidic Media ◽  
Annealing Procedure ◽  
Co Reduction

A structurally ordered phase of PdCu3 nanoparticles (NPs)/carbon black (CB), in which PdCu3 has a Cu3Au-type structure, was prepared by co-reduction of Pd and Cu precursors using ethylene glycol as a reducing agent and an annealing procedure.

Atomic Fe Dispersed on N-Doped Carbon Hollow Nanospheres for High-Efficiency Electrocatalytic Oxygen Reduction

2018 ◽  
Vol 31 (8) ◽  
pp. 1806312 ◽  
Author(s):  
Yifan Chen ◽  
Zhijuan Li ◽  
Yanbo Zhu ◽  
Dongmei Sun ◽  
Xien Liu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
High Efficiency ◽  
Hollow Nanospheres ◽  
Electrocatalytic Oxygen Reduction

scholarly journals P-doped mesoporous carbons for high-efficiency electrocatalytic oxygen reduction

2019 ◽  
Vol 40 (9) ◽  
pp. 1366-1374 ◽  
Author(s):  
Hui Zhao ◽  
Zhong-Pan Hu ◽  
Yun-Pei Zhu ◽  
Li Ge ◽  
Zhong-Yong Yuan
Keyword(s):  
Oxygen Reduction ◽  
High Efficiency ◽  
Mesoporous Carbons ◽  
Electrocatalytic Oxygen Reduction
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