Composition-tunable synthesis of Pt–Cu octahedral alloy nanocrystals from PtCu to PtCu3via underpotential-deposition-like process and their electro-catalytic properties

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 18153-18158 ◽  
Author(s):  
Yanyan Jia ◽  
Jingyun Su ◽  
Zhibin Chen ◽  
Kai Tan ◽  
Qiaoli Chen ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Underpotential Deposition ◽  
Alloy Nanocrystals ◽  
Cu Alloy

Octahedral Pt–Cu alloy nanocrystals with tunable composition from PtCu to PtCu3 was successfully synthesized via UPD-like process.

Underpotential Deposition-Induced Synthesis of Composition-Tunable PtCu Nanocrystals and Their Catalytic Properties

2013 ◽  
Vol 19 (9) ◽  
pp. 3119-3124 ◽  
Author(s):  
Yaqi Jiang ◽  
Yanyan Jia ◽  
Jiawei Zhang ◽  
Lei Zhang ◽  
Huang Huang ◽  
...  
Keyword(s):  
Catalytic Properties ◽  
Underpotential Deposition

Zinc-doping enhanced cadmium sulfide electrochemiluminescence behavior based on Au-Cu alloy nanocrystals quenching for insulin detection

2017 ◽  
Vol 97 ◽  
pp. 115-121 ◽  
Author(s):  
Wenjuan Zhu ◽  
Chao Wang ◽  
Xiaojian Li ◽  
Malik Saddam Khan ◽  
Xu Sun ◽  
...  
Keyword(s):  
Cadmium Sulfide ◽  
Alloy Nanocrystals ◽  
Cu Alloy ◽  
Zinc Doping ◽  
Behavior Based

scholarly journals Al-Cu alloy formation by aluminium underpotential deposition from AlCl3+NaCl melts on copper substrate

2021 ◽  
Vol 48 (03) ◽  
pp. 159-171
Author(s):  
B. S. RADOVIĆ ◽  
V. S. CVETKOVIĆ ◽  
R. A. EDWARDS ◽  
J. N. JOVIĆEVIĆ
Keyword(s):  
Copper Substrate ◽  
Underpotential Deposition ◽  
Alloy Formation ◽  
Cu Alloy

Dual roles of underpotential deposition in the synthesis of tetrahexahedral Pd–Ag alloy nanocrystals

2020 ◽  
Vol 56 (94) ◽  
pp. 14849-14852
Author(s):  
Haibo Bao ◽  
Fengxia Wu ◽  
Fenghua Li ◽  
Ling Zhang ◽  
Yali Yuan ◽  
...  
Keyword(s):  
Underpotential Deposition ◽  
High Index ◽  
Dual Roles ◽  
Alloy Nanocrystals

Underpotential deposition of Ag(i) not only selectively passivates the high-index facets of tetrahexahedral nanocrystals, but also leads to the formation of Pd–Ag alloy structures.

scholarly journals Facile synthesis of pentacle gold–copper alloy nanocrystals and their plasmonic and catalytic properties

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Rong He ◽  
You-Cheng Wang ◽  
Xiaoyong Wang ◽  
Zhantong Wang ◽  
Gang Liu ◽  
...  
Keyword(s):  
Copper Alloy ◽  
Catalytic Properties ◽  
Facile Synthesis ◽  
Alloy Nanocrystals

scholarly journals Atmosphere-Induced Transient Structural Transformations of Pd–Cu and Pt–Cu Alloy Nanocrystals

2021 ◽  
Author(s):  
Lea Pasquale ◽  
Sharif Najafishirtari ◽  
Rosaria Brescia ◽  
Alice Scarpellini ◽  
Cansunur Demirci ◽  
...  
Keyword(s):  
Structural Transformations ◽  
Alloy Nanocrystals ◽  
Cu Alloy

Synthesis and Activation of Pt–Cu Alloy Nanocrystals with Controlled Structure and Exposed Facets for Ethylene Glycol Oxidation

NANO ◽  
2019 ◽  
Vol 14 (06) ◽  
pp. 1950069
Author(s):  
Yunong Zhou ◽  
Chao Hu ◽  
Weidong Zhang ◽  
Hong Chen ◽  
Gang Yu
Keyword(s):  
Ethylene Glycol ◽  
Active Sites ◽  
Synergistic Effects ◽  
Alloy Nanocrystals ◽  
Cu Alloy ◽  
Excellent Activity ◽  
Ethylene Glycol Oxidation ◽  
Controlled Structure ◽  
Co Reduction ◽  
Exposed Facets

The ability to control the shape, structure and faceting characteristics of bimetallic alloy nanocrystals (NCs) has been vital for designing a catalyst with excellent activity and durability in fuel cells. However, it has remained a significant challenge to synthesize platinum–copper (Pt–Cu) alloy NCs with controlled structure and exposed facets. Herein, Pt–Cu alloy NCs with different shapes, structures and facets were synthesized via a one-step direct chemical co-reduction method employing various glucose concentrations. The results showed that the prepared Pt–Cu alloy NCs exhibited very interesting facet-dependent electrocatalytic properties for ethylene glycol oxidation. In comparison with other prepared Pt–Cu alloy NCs and commercial Pt/C, Pt–Cu alloy NPs with (111)-dominant facets showed higher electrocatalytic activity and durability for ethylene glycol oxidation. Alloy NPs showing prominent electrocatalytic performance were attributed to the predominant (111) facets on NP surfaces serving as catalytic active sites, in addition to added Cu providing unique electronic and synergistic effects. The present work highlighted that these NPs with (111)-dominant facets were indeed promising candidates as electrocatalysts with excellent activity and superior durability.

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