Carbon nanotube-supported dendritic Pt-on-Pd nanostructures: growth mechanism and electrocatalytic activity towards oxygen reduction reaction

2014 ◽  
Vol 2 (7) ◽  
pp. 2233-2239 ◽  
Author(s):  
Sourov Ghosh ◽  
Siniya Mondal ◽  
C. Retna Raj

Synthesis of carbon nanotube supported dendritic Pt-on-Pd nanoparticles and their composition-dependent electrocatalytic performance towards oxygen reduction reaction are demonstrated.

2014 ◽  
Vol 16 (27) ◽  
pp. 13605-13609 ◽  
Author(s):  
Yun Zhang ◽  
Wen-Jie Jiang ◽  
Xing Zhang ◽  
Lin Guo ◽  
Jin-Song Hu ◽  
...  

Tuning the composition of N-doped graphene–carbon nanotube composites can boost their electrocatalytic performance for the oxygen reduction reaction.


Author(s):  
Wenyan Si ◽  
Ze Yang ◽  
Xiuli Hu ◽  
Qing Lv ◽  
Xiaodong Li ◽  
...  

Zero valence palladium (Pd (0)) nanoparticles have been reported to be more favorable to oxygen reduction reaction (ORR) than palladium oxide (PdO). However, PdO is normally concomitant in Pd (0)...


2014 ◽  
Vol 2 (30) ◽  
pp. 11899 ◽  
Author(s):  
Arun Prakash Periasamy ◽  
Wen-Ping Wu ◽  
Guan-Lin Lin ◽  
Zih-Yu Shih ◽  
Zusing Yang ◽  
...  

2016 ◽  
Vol 9 (10) ◽  
pp. 3092-3096 ◽  
Author(s):  
Bu Yuan Guan ◽  
Le Yu ◽  
Xiong Wen (David) Lou

Unique iron carbide nanocrystallite-embedded carbon nanotube assemblies prepared via a dual-MOF confined-pyrolysis strategy exhibit superior electrocatalytic performance for the oxygen reduction reaction.


Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1017
Author(s):  
Nguyen-Huu-Hung Tuyen ◽  
Hyun-Gil Kim ◽  
Young-Soo Yoon

Direct urea fuel cells (DUFCs) have recently drawn increased attention as sustainable power generation devices because of their considerable advantages. Nonetheless, the kinetics of the oxidation-reduction reaction, particularly the electrochemical oxidation and oxygen reduction reaction (ORR), in direct urea fuel cells are slow and hence considered to be inefficient. To overcome these disadvantages in DUFCs, Pd nanoparticles loaded onto Co3O4 supported by multi-walled carbon nanotubes (Pd/Co3O4@MWCNT) were employed as a promising cathode catalyst for enhancing the electrocatalytic activity and oxygen reduction reaction at the cathode in DUFCs. Co3O4@MWCNT and Pd/Co3O4@MWCNT were synthesized via a facile two-step hydrothermal process. A Pd/MWCNT catalyst was also prepared and evaluated to study the effect of Co3O4 on the performance of the Pd/Co3O4@MWCNT catalyst. A current density of 13.963 mA cm−2 and a maximum power density of 2.792 mW cm−2 at 20 °C were obtained. Pd/Co3O4@MWCNT is a prospectively effective cathode catalyst for DUFCs. The dilution of Pd with non-precious metal oxides in adequate amounts is economically conducive to highly practical catalysts with promising electrocatalytic activity in fuel cell applications.


RSC Advances ◽  
2016 ◽  
Vol 6 (53) ◽  
pp. 47468-47473 ◽  
Author(s):  
Eunjik Lee ◽  
Young-Uk Kwon

We report the epitaxial growth of Pd nanoparticles on MoS2 surface and their electrocatalytic activity for oxygen reduction reaction (ORR).


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