scholarly journals Porous SnO2 hexagonal prism-attached Pd/rGO with enhanced electrocatalytic activity for methanol oxidation

RSC Advances ◽  
2017 ◽  
Vol 7 (47) ◽  
pp. 29909-29915 ◽  
Author(s):  
Yiran Hu ◽  
Tao Mei ◽  
Jinhua Li ◽  
Jianying Wang ◽  
Xianbao Wang

Herein, we chose porous SnO2 hexagonal prisms as a new promoter for Pd/rGO electrocatalyst. The as-prepared catalyst exhibited excellent electrochemical catalytic activities and enhanced durability for the oxidation of methanol.

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 103852-103862 ◽  
Author(s):  
Muhammad Ali Ehsan ◽  
Abbas Saeed Hakeem ◽  
Hamid Khaledi ◽  
Muhammad Mazhar ◽  
Muhammad Mehmood Shahid ◽  
...  

CuO–1.5ZrO2 composite electrodes fabricated from a single source precursor [Cu4Zr6(μ-O)8(dmap)4(OAc)12]·H2O have been utilized for the oxidation of methanol.


2014 ◽  
Vol 17 (3) ◽  
pp. 133-138
Author(s):  
V-H Ramos-Sánchez ◽  
Diana Brito-Picciotto ◽  
Ramón Gómez-Vargas ◽  
David Chávez-Flores ◽  
Edgar Valenzuela

The present work examined two Pd-based alloys supported on carbon: AuPd and Au2Pd, both synthesized by chemical reduction with NaBH4. The low Au-Pd loading electrocatalysts were physicochemically and electrochemically characterized. Electrocatalytic activity for methanol oxidation was found exclusively in AuPd/C. However, it was revealed that such reaction was promoted by PdO occurring in the actual active phase of the supported electrocatalyst, through the formation of Au-Pd-PdO ensemble sites.


Nanoscale ◽  
2014 ◽  
Vol 6 (9) ◽  
pp. 4635-4641 ◽  
Author(s):  
Li-Li Wang ◽  
Dong-Feng Zhang ◽  
Lin Guo

We report the fabrication of phase-segregated Pt-Ni chain-like nanohybrids composed of monometallic counterparts attached to each other, which exhibit high catalytic activities towards the methanol oxidation reaction (MOR).


2016 ◽  
Vol 7 (8) ◽  
pp. 5414-5420 ◽  
Author(s):  
Gengtao Fu ◽  
Xiaoxiao Yan ◽  
Zhiming Cui ◽  
Dongmei Sun ◽  
Lin Xu ◽  
...  

CuPt3 nanowires are synthesized with a thermosensitive amine-terminated poly(N-isopropylacrylamide) polymer, displaying “smart” temperature-controllable electrocatalytic activity towards the methanol oxidation reaction.


2021 ◽  
Author(s):  
Yongping Luo ◽  
Wei Zhong ◽  
Ping Huang ◽  
Hui Ou ◽  
Haiyan Fu ◽  
...  

The enhancement for electrocatalytic oxidation of methanol was achieved by utilizing core-shell carbon microspheres@NiO (CMs@NiO) deposited on glass carbon (GC) as the support material of Pt catalyst. The resultant CMs@NiO/Pt...


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
S. S. Mahapatra ◽  
S. Shekhar ◽  
B. K. Thakur ◽  
H. Priyadarshi

Electropolymerization of aniline at the graphite electrodes was achieved by potentiodynamic method. Electrodeposition of Pd (C-PANI-Pd) and Ni (C-PANI-Ni) and codeposition of Pd-Ni (C-PANI-Pd-Ni) microparticles into the polyaniline (PANI) film coated graphite (C-PANI) were carried out under galvanostatic control. The morphology and composition of the composite electrodes were obtained using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) techniques. The electrochemical behavior and electrocatalytic activity of the electrode were characterized using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and chronoamperometric (CA) methods in acidic medium. The C-PANI-Pd-Ni electrode showed an improved catalytic performance towards methanol oxidation in terms of lower onset potential, higher anodic oxidation current, greater stability, lower activation energy, and lower charge transfer resistance. The enhanced electrocatalytic activity might be due to the greater permeability of C-PANI films for methanol molecules, better dispersion of Pd-Ni microparticles into the polymer matrixes, and the synergistic effects between the dispersed metal particles and their matrixes.


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