A core–shell Pd1Ru1Ni2@Pt/C catalyst with a ternary alloy core and Pt monolayer: enhanced activity and stability towards the oxygen reduction reaction by the addition of Ni

2016 ◽  
Vol 4 (3) ◽  
pp. 847-855 ◽  
Author(s):  
Haoxiong Nan ◽  
Xinlong Tian ◽  
Junming Luo ◽  
Dai Dang ◽  
Rong Chen ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Ternary Alloy ◽  
Reduction Reaction ◽  
Core Shell ◽  
Structured Catalyst ◽  
Enhanced Activity

A core–shell structured catalyst exhibits high activity and stability.

In situ preparation of Ca0.5Mn0.5O/C as a novel high-activity catalyst for the oxygen reduction reaction

2016 ◽  
Vol 4 (48) ◽  
pp. 19147-19153 ◽  
Author(s):  
Yu-Qi Lyu ◽  
Chi Chen ◽  
Yang Gao ◽  
Mattia Saccoccio ◽  
Francesco Ciucci
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Rock Salt ◽  
Reduction Reaction ◽  
In Situ Preparation ◽  
Enhanced Activity ◽  
Activity Catalyst

Ca-substituted rock-salt MnO/C (Ca0.5Mn0.5O/C) is prepared using an in situ approach and shows enhanced activity for the oxygen reduction reaction (ORR).

A stable PdCu@Pd core-shell nanobranches with enhanced activity and methanol-tolerant for oxygen reduction reaction

2020 ◽  
Vol 354 ◽  
pp. 136680
Author(s):  
Shaoda Huang ◽  
Shuanglong Lu ◽  
Hongyin Hu ◽  
Binbin Cao ◽  
Huining Li ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Core Shell ◽  
Enhanced Activity ◽  
Methanol Tolerant

Carbon–boron core–shell microspheres for the oxygen reduction reaction

2016 ◽  
Vol 4 (33) ◽  
pp. 12987-12994 ◽  
Author(s):  
Arun Prakash Periasamy ◽  
Rini Ravindranath ◽  
Prathik Roy ◽  
Wen-Ping Wu ◽  
Huan-Tsung Chang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Carbon Nanomaterials ◽  
Reduction Reaction ◽  
Core Shell ◽  
Carbon Microspheres ◽  
Self Assembled

Carbon nanomaterials (CNMs) with self-assembled carbon microspheres are prepared from red onion skins. The CNMs are further used to prepare carbon–boron core–shell CNMs, which provide high activity for the oxygen reduction reaction (ORR).

Monodisperse PdCu@PtCu Core@Shell nanocrystal and their high activity and durability for oxygen reduction reaction

2016 ◽  
Vol 192 ◽  
pp. 227-233 ◽  
Author(s):  
Yujing Li ◽  
Lin Chen ◽  
Kai Chen ◽  
Fanxin Quan ◽  
Changfeng Chen
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Reduction Reaction ◽  
Core Shell

Binary transition metal nitrides with enhanced activity and durability for the oxygen reduction reaction

2015 ◽  
Vol 3 (32) ◽  
pp. 16801-16809 ◽  
Author(s):  
Xinlong Tian ◽  
Junming Luo ◽  
Haoxiong Nan ◽  
Zhiyong Fu ◽  
Jianhuang Zeng ◽  
...  
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Activity ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Metal Nitrides ◽  
Transition Metal Nitrides ◽  
Enhanced Activity

Binary transition metal nitrides demonstrate high activity and stability/durability for the oxygen reduction reaction in both acid and alkaline media.

scholarly journals Pd@Pt Core–Shell Concave Decahedra: A Class of Catalysts for the Oxygen Reduction Reaction with Enhanced Activity and Durability

2015 ◽  
Vol 137 (47) ◽  
pp. 15036-15042 ◽  
Author(s):  
Xue Wang ◽  
Madeline Vara ◽  
Ming Luo ◽  
Hongwen Huang ◽  
Aleksey Ruditskiy ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Core Shell ◽  
Enhanced Activity

scholarly journals A Platinum Monolayer Core-Shell Catalyst with a Ternary Alloy Nanoparticle Core and Enhanced Stability for the Oxygen Reduction Reaction

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Haoxiong Nan ◽  
Xinlong Tian ◽  
Lijun Yang ◽  
Ting Shu ◽  
Huiyu Song ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Ternary Alloy ◽  
Photoelectron Spectroscopy ◽  
Reduction Reaction ◽  
Core Shell ◽  
X Ray ◽  
The Core ◽  
Platinum Monolayer ◽  
Nanoparticle Core

We synthesize a platinum monolayer core-shell catalyst with a ternary alloy nanoparticle core of Pd, Ir, and Ni. A Pt monolayer is deposited on carbon-supported PdIrNi nanoparticles using an underpotential deposition method, in which a copper monolayer is applied to the ternary nanoparticles; this is followed by the galvanic displacement of Cu with Pt to generate a Pt monolayer on the surface of the core. The core-shell Pd1Ir1Ni2@Pt/C catalyst exhibits excellent oxygen reduction reaction activity, yielding a mass activity significantly higher than that of Pt monolayer catalysts containing PdIr or PdNi nanoparticles as cores and four times higher than that of a commercial Pt/C electrocatalyst. In 0.1 M HClO4, the half-wave potential reaches 0.91 V, about 30 mV higher than that of Pt/C. We verify the structure and composition of the carbon-supported PdIrNi nanoparticles using X-ray powder diffraction, X-ray photoelectron spectroscopy, thermogravimetry, transmission electron microscopy, and energy dispersive X-ray spectrometry, and we perform a stability test that confirms the excellent stability of our core-shell catalyst. We suggest that the porous structure resulting from the dissolution of Ni in the alloy nanoparticles may be the main reason for the catalyst’s enhanced performance.

Kinetically-controlled growth of cubic and octahedral Rh–Pd alloy oxygen reduction electrocatalysts with high activity and durability

Nanoscale ◽  
2015 ◽  
Vol 7 (1) ◽  
pp. 301-307 ◽  
Author(s):  
Yucong Yan ◽  
Fangwei Zhan ◽  
Jingshan Du ◽  
Yingying Jiang ◽  
Chuanhong Jin ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Reaction Kinetics ◽  
Oxygen Reduction ◽  
High Activity ◽  
Reduction Reaction ◽  
Controlled Growth ◽  
Enhanced Activity ◽  
Kinetically Controlled ◽  
Pd Alloy

Rh–Pd alloy cubes and octahedra with different compositions were readily generated by manipulating the reaction kinetics and exhibited substantially enhanced activity and durability for the oxygen reduction reaction.

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