Hollow platinum tetrapods: using a combination of {111} facets, surface concave topology, and ultrathin walls to boost their oxygen reduction reactivity

2021 ◽  
Author(s):  
Mengmeng Li ◽  
Anzhou Yang ◽  
Siyuan Wang ◽  
Yingzi Wang ◽  
Qiuzi Huang ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Catalytic Reactions ◽  
Utilization Efficiency

Hollow nanocages with ultrathin walls and specific configurations have been reported with stellar performance towards various catalytic reactions owing to their high atoms utilization efficiency and well-defined facets/architectures. Herein, we...

Active site engineering of atomically dispersed transition metal-heteroatom-carbon catalysts for oxygen reduction

2021 ◽  
Author(s):  
Jiawei Zhu ◽  
Shichun Mu
Keyword(s):  
Transition Metal ◽  
Oxygen Reduction ◽  
Active Site ◽  
Catalytic Reactions ◽  
Single Atom ◽  
Carbon Catalysts

Owing to the advantage of atomic utilization, the single-atom catalyst has attracted much attention and been employed in multifarious catalytic reactions. Their definite site configuration is favorable for exploring the...

In-situ self-doped biomass-derived porous carbon as excellent oxygen reduction electrocatalyst for fuel cell and metal-air battery

2021 ◽  
Author(s):  
Menggeng Hao ◽  
Rongmin Dun ◽  
Yumiao Su ◽  
Lei He ◽  
Fandi Ning ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Catalytic Reactions ◽  
Highly Efficient ◽  
Metal Cofactor ◽  
Air Battery

The nature of many highly efficient catalytic reactions catalyzed by metallocofactors is inspiring. Herein, the concept of metal cofactor was utilized in fabricating in-situ multiple metal and heteroatom self-doped porous...

scholarly journals OH formation and H2 adsorption at the liquid water–Pt(111) interface

2018 ◽  
Vol 9 (34) ◽  
pp. 6912-6921 ◽  
Author(s):  
Henrik H. Kristoffersen ◽  
Tejs Vegge ◽  
Heine Anton Hansen
Keyword(s):  
Molecular Dynamics ◽  
Oxygen Reduction Reaction ◽  
Ab Initio ◽  
Oxygen Reduction ◽  
Liquid Water ◽  
Pem Fuel Cells ◽  
Reduction Reaction ◽  
Catalytic Reactions ◽  
Water Dynamics ◽  
H2 Adsorption

The liquid water–Pt(111) interface is studied with constant temperature ab initio molecular dynamics to explore the importance of liquid water dynamics on catalytic reactions such as the oxygen reduction reaction in PEM fuel cells.

Pt-Based electrocatalysts with high atom utilization efficiency: from nanostructures to single atoms

2019 ◽  
Vol 12 (2) ◽  
pp. 492-517 ◽  
Author(s):  
Lei Zhang ◽  
Kieran Doyle-Davis ◽  
Xueliang Sun
Keyword(s):  
Catalytic Performance ◽  
Catalytic Reactions ◽  
Utilization Efficiency ◽  
Design And Synthesis ◽  
Single Atoms ◽  
Recent Developments

This review presents recent developments in the design and synthesis of Pt-based catalysts with high atom utilization efficiency and their enhanced catalytic performance in electrochemical catalytic reactions.

High Efficiency Nitrogen Doping and Single Atom Cobalt Anchoring via Supermolecules for Oxygen Reduction Electrocatalysis

2021 ◽  
Author(s):  
Libo Deng ◽  
Xiujuan Li ◽  
Yuanyuan Chen ◽  
Weijie Liao ◽  
Lei Qiu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Nitrogen Doping ◽  
High Efficiency ◽  
Carbon Support ◽  
Utilization Efficiency ◽  
Single Atom ◽  
High Catalytic Activity

Single atom catalysts (SACs) stabilized by nitrogen in a carbon support and having maximized atom utilization efficiency and an unsaturated environment exhibit high catalytic activity and selectivity. Incorporating nitrogen into...

scholarly journals Recent Progress in Synthesis and Oxygen Reduction Applications of Fe-based Single-Atom and Double-Atom Catalysts

2021 ◽  
Author(s):  
Yan Yan ◽  
Haoyan Cheng ◽  
Zehua Qu ◽  
Rui Yu ◽  
Fan Liu ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Recent Progress ◽  
Catalytic Properties ◽  
Utilization Efficiency ◽  
Single Atom

Single-atom and double-atom catalysts have emerged as new frontiers in many fields due to their high atom-utilization efficiency, excellent catalytic properties and good durability. In this decade, Fe-based atomic catalysts...

Achievements in Pt Nanoalloy Oxygen Reduction Reaction Catalysts: Strain Engineering, Stability and Atom Utilization Efficiency

2021 ◽  
Author(s):  
Yao Nie ◽  
Li Li ◽  
Zidong Wei
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Strain Engineering ◽  
Reduction Reaction ◽  
Utilization Efficiency ◽  
Engineering Stability

The Pt nanoalloy surface often show unique electronic and chemicophysics properties that are distinct from those of their parent metals, which providing large rooms for manipulating their oxygen reduction reaction...

Morphology control of bimetallic nanostructures for electrochemical catalysts

2013 ◽  
Vol 2 (5) ◽  
pp. 487-514 ◽  
Author(s):  
Weiqing Zhang ◽  
Xianmao Lu
Keyword(s):  
Oxygen Reduction ◽  
Catalytic Properties ◽  
Precious Metals ◽  
Catalytic Reactions ◽  
Controlled Synthesis ◽  
Hollow Structures ◽  
Bimetallic Nanocrystals ◽  
Different Shapes ◽  
Bimetallic Nanostructures ◽  
Electrochemical Catalysts

AbstractBimetallic nanostructures with well-defined shapes have shown distinct and advantageous catalytic properties compared to their monometallic counterparts. The use of bimetallic electrocatalysts may improve activity and durability, in addition to the possibility of reducing the loading of precious metals. A variety of bimetallic nanocrystals with different shapes has been reported in recent years. Their activities toward electrochemical catalytic reactions such as oxygen reduction and alcohol oxidations have been intensively studied. In this review, we discuss some latest developments in the morphology-controlled synthesis of Pt- and Pd-based bimetallic nanocrystals with shapes such as nanodendrites, polyhedra, porous hollow structures, and core shells, as well as their applications as electrochemical catalysts.

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