Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

This work has been performed to determine the critical size of the GeO2 nanoparticle for lithium battery anode applications and identify its quantum confinement and its related effects on the electrochemical performance. GeO2 nanoparticles with different sizes of ∼ 2, ∼ 6, ∼ 10, and ∼ 35 nm were prepared by adjusting the reaction rate, controlling the reaction temperature and reactant concentration, and using different solvents. Among the different sizes of the GeO2 nanoparticles, the ∼ 6 nm sized GeO2 showed the best electrochemical performance. Unexpectedly smaller particles of the ∼ 2 nm sized GeO2 showed the inferior electrochemical performances compared to those of the ∼ 6 nm sized one. This was due to the low electrical conductivity of the ∼ 2 nm sized GeO2 caused by its quantum confinement effect, which is also related to the increase in the charge transfer resistance. Those characteristics of the smaller nanoparticles led to poor electrochemical performances, and their relationships were discussed.

Download full-text PDF

Source
http://dx.doi.org/10.1021/nl404466vDOI Listing

Publication Analysis

Top Keywords

∼ sized
16
quantum confinement
12
geo2 nanoparticles
12
∼ ∼
12
sized geo2
12
confinement effects
8
critical size
8
size geo2
8
electrochemical performance
8
8

Similar Publications

Mechanistic studies of biomolecular machines involved in intracellular protein degradation-such as the caseinolytic protease P, ATPases associated with diverse cellular activities (AAA+) motors, and the high-temperature requirement A family of enzymes-are of great interest as they are implicated in a host of human diseases. The function of these systems is dependent on both their fine-tuned three-dimensional structure and the conformational dynamics that modulate this structure. Their large sizes, inherent conformational plasticity, and oligomeric heterogeneity dictate that their mechanism of action cannot be deciphered by any one method.

View Article and Find Full Text PDF

Unlabelled: ClpA is an ATP-dependent chaperone essential for protein quality control in . Upon ATP binding, ClpA forms hexameric rings capable of association with the tetradecameric ClpP protease. ClpA couples ATP binding and/or hydrolysis to the unfolding and translocation of protein substrates into the central cavity of ClpP for degradation.

View Article and Find Full Text PDF

Kidney volume after endovascular exclusion of abdominal aortic aneurysms by EVAR and FEVAR.

Ann Vasc Surg

August 2025

CHU Rennes, Service de Chirurgie Vasculaire, F-35033 Rennes, France; University of Rennes, Inserm, LTSI - UMR 1099, Rennes, France. Electronic address:

Introduction: Decreased kidney volume is a sign of renal aging and/or decreased vascularization. The aim of this study was to determine whether renal volume changes 24 months after exclusion of an abdominal aortic aneurysm (AAA), and to compare fenestrated (FEVAR) and subrenal (EVAR) stents.

Methods: Retrospective single-center study from a prospective registry, including patients between 60 and 80 years with normal preoperative renal function (eGFR≥60 ml/min/1.

View Article and Find Full Text PDF

A novel protocol for parametrization of a beam model for small stereotactic beams.

J Appl Clin Med Phys

July 2025

Department of Medical Radiation Physics and Nuclear Medicine, Karolinska University Hospital, Stockholm, Sweden.

Introduction: Most Treatment Planning Systems (TPS) utilize parameterized multi-source models to represent the radiation beam of linacs. However, small stereotactic beams require special attention due to the importance of correct spot- and field-size definition. The purpose of this work is to develop a protocol for configuring a beam model that provides accurate representation of stereotactic beams.

View Article and Find Full Text PDF

High-sensitivity C-reactive protein (hs-CRP) is a protein that indicates inflammation and the risk of cardiovascular diseases. The intake of dietary amino acids can influence immune and inflammatory reactions. However, studies on the relationship between dietary amino acids and hs-CRP, especially in children, remain scarce.

View Article and Find Full Text PDF