当前位置:
X-MOL 学术
›
ChemElectroChem
›
论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Small (<5 nm), Clean, and Well‐Structured Cubic Platinum Nanoparticles: Synthesis and Electrochemical Characterization
ChemElectroChem ( IF 4 ) Pub Date : 2020-10-30 , DOI: 10.1002/celc.202001336 Rodolfo M. Antoniassi 1, 2 , Heiki Erikson 1, 3 , Jose Solla‐Gullón 1 , Roberto M. Torresi 2 , Juan M. Feliu 1
ChemElectroChem ( IF 4 ) Pub Date : 2020-10-30 , DOI: 10.1002/celc.202001336 Rodolfo M. Antoniassi 1, 2 , Heiki Erikson 1, 3 , Jose Solla‐Gullón 1 , Roberto M. Torresi 2 , Juan M. Feliu 1
Affiliation
Shape‐controlled metal nanoparticles are significantly improving the electrocatalysis of many relevant reactions. By controlling the shape of nanoparticles, it is possible to engineer their surface to exhibit a preferential structure. However, to facilitate the incorporation of shaped nanomaterials into practical electrochemical devices, it is indispensable to overcome limitations caused by their large particle size (typically >5 nm). For practical applications, nanoparticles must have a size lower than 5 nm with a clean surface to decrease costs and provide a sufficiently large specific surface area. This is a major challenge that has remained unexplored up to now. Herein, we present the synthesis and electrochemical characterization of 3–5 nm, with well‐defined cubic Pt nanoparticles supported on carbon. The electrochemical characterization of the nanoparticles evidences the existence of a preferential {100} and clean structure (within about 40 % of {100} terrace surface).
中文翻译:
小(<5 nm),清洁且结构良好的立方铂纳米颗粒:合成和电化学表征
形状受控的金属纳米粒子显着改善了许多相关反应的电催化作用。通过控制纳米颗粒的形状,可以对其表面进行工程处理以显示优先结构。然而,为了促进将成形的纳米材料结合到实际的电化学装置中,克服由它们的大粒径(通常> 5nm)引起的限制是必不可少的。对于实际应用,纳米颗粒的尺寸必须小于5 nm,表面要干净,以降低成本并提供足够大的比表面积。到目前为止,这是一个尚未探索的重大挑战。在此,我们介绍了3–5 nm的合成和电化学表征,其中明确定义的立方Pt纳米颗粒负载在碳上。
更新日期:2021-01-04
中文翻译:
小(<5 nm),清洁且结构良好的立方铂纳米颗粒:合成和电化学表征
形状受控的金属纳米粒子显着改善了许多相关反应的电催化作用。通过控制纳米颗粒的形状,可以对其表面进行工程处理以显示优先结构。然而,为了促进将成形的纳米材料结合到实际的电化学装置中,克服由它们的大粒径(通常> 5nm)引起的限制是必不可少的。对于实际应用,纳米颗粒的尺寸必须小于5 nm,表面要干净,以降低成本并提供足够大的比表面积。到目前为止,这是一个尚未探索的重大挑战。在此,我们介绍了3–5 nm的合成和电化学表征,其中明确定义的立方Pt纳米颗粒负载在碳上。