scholarly journals Formation of Pt-Based Alloy Nanoparticles Assisted by Molybdenum Hexacarbonyl

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1825
Author(s):  
Gerard M. Leteba ◽  
David R. G. Mitchell ◽  
Pieter B. J. Levecque ◽  
Eric van Steen ◽  
Candace I. Lang
Keyword(s):  
High Performance ◽  
Morphological Evolution ◽  
High Index ◽  
Solution Phase ◽  
Alloy Nanoparticles ◽  
Molybdenum Hexacarbonyl ◽  
Metal Precursors ◽  
Synthetic Procedure ◽  
Selection Of

We report on an optimized, scalable solution-phase synthetic procedure for the fabrication of fine-tuned monodisperse nanostructures (Pt(NiCo), PtNi and PtCo). The influence of different solute metal precursors and surfactants on the morphological evolution of homogeneous alloy nanoparticles (NPs) has been investigated. Molybdenum hexacarbonyl (Mo(CO)6) was used as the reductant. We demonstrate that this solution-based strategy results in uniform-sized NPs, the morphology of which can be manipulated by appropriate selection of surfactants and solute metal precursors. Co-surfactants (oleylamine, OAm, and hexadecylamine, HDA) enabled the development of a variety of high-index faceted NP morphologies with varying degrees of curvatures while pure OAm selectively produced octahedral NP morphologies. This Mo(CO)6-based synthetic protocol offers new avenues for the fabrication of multi-structured alloy NPs as high-performance electrocatalysts.

Au–Pd alloy catalyst with high performance for hydrogen generation from formic acid-formate solution at nearly 0 °C

RSC Advances ◽  
2014 ◽  
Vol 4 (84) ◽  
pp. 44500-44503 ◽  
Author(s):  
Shuang Wu ◽  
Fan Yang ◽  
Pingchuan Sun ◽  
Tiehong Chen
Keyword(s):  
Carbon Black ◽  
Formic Acid ◽  
High Performance ◽  
Hydrogen Generation ◽  
Alloy Nanoparticles ◽  
Metal Precursors ◽  
Pd Alloy ◽  
Ice Water ◽  
Formate Solution ◽  
Alloy Catalyst

By reduction of mixed noble metal precursors in aqueous phase under ice-water bath conditions, well dispersed Au–Pd alloy nanoparticles supported on carbon black were facilely prepared and exhibited high activity for hydrogen generation from formic acid-formate solution even at nearly 0 °C.

Selection of Insulating Elastomers for High-Performance Intrinsically Stretchable Transistors

2021 ◽  
Author(s):  
Hang Ren ◽  
Junmo Zhang ◽  
Yanhong Tong ◽  
Mingxin Zhang ◽  
Xiaoli Zhao ◽  
...  
Keyword(s):  
High Performance ◽  
Selection Of

Realizing Stable High‐Performance and Low‐Energy‐Loss Ternary Photovoltaics through Judicious Selection of the Third Component

Solar RRL ◽  
2021 ◽  
pp. 2100450
Author(s):  
Bing-Huang Jiang ◽  
Yi-Peng Wang ◽  
Yu-Wei Su ◽  
Jia-Fu Chang ◽  
Chu-Chen Chueh ◽  
...  
Keyword(s):  
Energy Loss ◽  
High Performance ◽  
Low Energy ◽  
The Third ◽  
Selection Of

scholarly journals An Overview of Molecular Dynamic Simulation for Corrosion Inhibition of Ferrous Metals

Metals ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 46
Author(s):  
Nur Izzah Nabilah Haris ◽  
Shafreeza Sobri ◽  
Yus Aniza Yusof ◽  
Nur Kartinee Kassim
Keyword(s):  
Molecular Dynamic ◽  
Corrosion Inhibition ◽  
High Performance ◽  
Md Simulation ◽  
Ferrous Metal ◽  
Working Mechanism ◽  
Inhibitor Molecule ◽  
As Adsorption ◽  
Inhibition Studies ◽  
Selection Of

Molecular dynamics (MD) simulation is a powerful tool to study the molecular level working mechanism of corrosion inhibitors in mitigating corrosion. In the past decades, MD simulation has emerged as an instrument to investigate the interactions at the interface between the inhibitor molecule and the metal surface. Combined with experimental measurement, theoretical examination from MD simulation delivers useful information on the adsorption ability and orientation of the molecule on the surface. It relates the microscopic characteristics to the macroscopic properties which enables researchers to develop high performance inhibitors. Although there has been vast growth in the number of studies that use molecular dynamic evaluation, there is still lack of comprehensive review specifically for corrosion inhibition of organic inhibitors on ferrous metal in acidic solution. Much uncertainty still exists on the approaches and steps in performing MD simulation for corrosion system. This paper reviews the basic principle of MD simulation along with methods, selection of parameters, expected result such as adsorption energy, binding energy and inhibitor orientation, and recent publications in corrosion inhibition studies.

Mechanism of the Transition From In-Plane Buckling to Helical Buckling for a Stiff Nanowire on an Elastomeric Substrate

2016 ◽  
Vol 83 (4) ◽  
Author(s):  
Youlong Chen ◽  
Yong Zhu ◽  
Xi Chen ◽  
Yilun Liu
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Stretchable Electronics ◽  
Buckling Mode ◽  
Design And Optimization ◽  
Out Of Plane ◽  
Plane Direction ◽  
Plane Displacement ◽  
Helical Buckling ◽  
Selection Of

In this work, the compressive buckling of a nanowire partially bonded to an elastomeric substrate is studied via finite-element method (FEM) simulations and experiments. The buckling profile of the nanowire can be divided into three regimes, i.e., the in-plane buckling, the disordered buckling in the out-of-plane direction, and the helical buckling, depending on the constraint density between the nanowire and the substrate. The selection of the buckling mode depends on the ratio d/h, where d is the distance between adjacent constraint points and h is the helical buckling spacing of a perfectly bonded nanowire. For d/h > 0.5, buckling is in-plane with wavelength λ = 2d. For 0.27 < d/h < 0.5, buckling is disordered with irregular out-of-plane displacement. While, for d/h < 0.27, buckling is helical and the buckling spacing gradually approaches to the theoretical value of a perfectly bonded nanowire. Generally, the in-plane buckling induces smaller strain in the nanowire, but consumes the largest space. Whereas the helical mode induces moderate strain in the nanowire, but takes the smallest space. The study may shed useful insights on the design and optimization of high-performance stretchable electronics and three-dimensional complex nanostructures.

scholarly journals Ternary NiCoP nanoparticles assembled on graphene for high-performance lithium-ion batteries and supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (42) ◽  
pp. 26120-26124 ◽  
Author(s):  
Chunde Wang ◽  
Yinyin Qian ◽  
Jing Yang ◽  
Shiqi Xing ◽  
Xu Ding ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Room Temperature ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Solution Phase ◽  
Phase Method ◽  
Self Assembled ◽  
Solution Phase Method

We demonstrate that ternary NiCoP nanoparticles can be self-assembled on graphene at room temperature by a solution-phase method and our electrode materials exhibit a high performance for LIBs and supercapacitors.

Selection of selective laser sintering materials for different applications

2015 ◽  
Vol 21 (6) ◽  
pp. 630-648 ◽  
Author(s):  
Sunil Kumar Tiwari ◽  
Sarang Pande ◽  
Sanat Agrawal ◽  
Santosh M. Bobade
Keyword(s):  
Process Parameters ◽  
High Performance ◽  
Material Selection ◽  
Selective Laser Sintering ◽  
Laser Sintering ◽  
Optimal Process ◽  
Content Type ◽  
Volume Production ◽  
High Performance Application ◽  
Selection Of

Purpose – The purpose of this paper is to propose and evaluate the selection of materials for the selective laser sintering (SLS) process, which is used for low-volume production in the engineering (e.g. light weight machines, architectural modelling, high performance application, manufacturing of fuel cell, etc.), medical and many others (e.g. art and hobbies, etc.) with a keen focus on meeting customer requirements. Design/methodology/approach – The work starts with understanding the optimal process parameters, an appropriate consolidation mechanism to control microstructure, and selection of appropriate materials satisfying the property requirement for specific application area that leads to optimization of materials. Findings – Fabricating the parts using optimal process parameters, appropriate consolidation mechanism and selecting the appropriate material considering the property requirement of applications can improve part characteristics, increase acceptability, sustainability, life cycle and reliability of the SLS-fabricated parts. Originality/value – The newly proposed material selection system based on properties requirement of applications has been proven, especially in cases where non-experts or student need to select SLS process materials according to the property requirement of applications. The selection of materials based on property requirement of application may be used by practitioners from not only the engineering field, medical field and many others like art and hobbies but also academics who wish to select materials of SLS process for different applications.

Facile One-Pot Synthesis of CoFe Alloy Nanoparticles Decorated N-Doped Carbon for High-Performance Rechargeable Zinc–Air Battery Stacks

2018 ◽  
Vol 6 (6) ◽  
pp. 7743-7751 ◽  
Author(s):  
Tao An ◽  
Xiaoming Ge ◽  
Nguk Neng Tham ◽  
Afriyanti Sumboja ◽  
Zhaolin Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Alloy Nanoparticles ◽  
One Pot ◽  
One Pot Synthesis ◽  
Air Battery
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