Bottom-up preparation of MgH2 nanoparticles with enhanced cycle life stability during electrochemical conversion in Li-ion batteries

Nanoscale ◽  
2014 ◽  
Vol 6 (23) ◽  
pp. 14459-14466 ◽  
Author(s):  
Yassine Oumellal ◽  
Claudia Zlotea ◽  
Stéphane Bastide ◽  
Christine Cachet-Vivier ◽  
Eric Léonel ◽  
...  
Keyword(s):  
Particle Size ◽  
Anode Material ◽  
Average Particle Size ◽  
Cycle Life ◽  
Average Particle ◽  
Li Ion Batteries ◽  
Bottom Up ◽  
Electrochemical Conversion ◽  
Li Ion

A promising anode material for Li-ion batteries based on MgH2 with around 5 nm average particle size was synthesized by a bottom-up method.

Zn0.5Co0.5O Solid Solution Nanoparticles with Durable Life for Rechargeable Lithium-ion Batteries

Nano LIFE ◽  
2014 ◽  
Vol 04 (04) ◽  
pp. 1441015 ◽  
Author(s):  
Linlin Wang ◽  
Daoli Zhao ◽  
Min Zhang ◽  
Caihua Wang ◽  
Kaibin Tang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Particle Size ◽  
Energy Storage ◽  
Average Particle Size ◽  
Rate Capability ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Average Particle ◽  
Li Ion Batteries ◽  
Li Ion

Zn 0.5 Co 0.5 O solid solution materials have been extensively studied for possible spintronic applications, however, there are only a few reports using Zn 0.5 Co 0.5 O nanostructures for energy storage. Here, we report the preparation of Zn 0.5 Co 0.5 O nanoparticles with the average particle size 10 nm and their application as anode material for rechargeable Li -ion batteries (LIBs). Electrochemical measurements demonstrate that the Zn 0.5 Co 0.5 O solid solution nanoparticles deliver a stable reversible capacity of 309 mA h g-1 up to 250 cycles at 1 C rate. These results show higher-rate capability and better cycle durability compared with those of the reported ZnO or ZnO -based anodes.

A self-assembled 3D urchin-like Ti0.8Sn0.2O2–rGO hybrid nanostructure as an anode material for high-rate and long cycle life Li-ion batteries

2017 ◽  
Vol 5 (17) ◽  
pp. 8087-8094 ◽  
Author(s):  
Yutao Dong ◽  
Dan Li ◽  
Chengwei Gao ◽  
Yushan Liu ◽  
Jianmin Zhang
Keyword(s):  
Anode Material ◽  
Hydrothermal Process ◽  
Cycle Life ◽  
High Rate ◽  
Li Ion Batteries ◽  
Long Cycle ◽  
Long Cycle Life ◽  
One Step ◽  
Li Ion ◽  
Self Assembled

Self-assembled 3D urchin-like Ti0.8Sn0.2O2–rGO was fabricated by a one-step hydrothermal process as an anode material for high-rate and long cycle life LIBs.

Spherical graphite produced from waste semi-coke with enhanced properties as an anode material for Li-ion batteries

2019 ◽  
Vol 3 (11) ◽  
pp. 3116-3127 ◽  
Author(s):  
Ming Shi ◽  
Zige Tai ◽  
Na Li ◽  
Kunyang Zou ◽  
Yuanzhen Chen ◽  
...  
Keyword(s):  
Anode Material ◽  
Cycle Life ◽  
Li Ion Batteries ◽  
Capacity Retention ◽  
Spherical Graphite ◽  
Li Ion ◽  
Enhanced Properties

Spherical graphite produced from waste semi-coke displays an excellent cycle life with the capacity retention of 97.7% at 0.5C after 700 cycles.

scholarly journals Li Conductivity of Nanocrystalline Li4Ti5O12 Prepared by a Sol-Gel Method and High-Energy Ball Milling

2009 ◽  
Vol 289-292 ◽  
pp. 565-570 ◽  
Author(s):  
W. Iwaniak ◽  
J. Fritzsche ◽  
M. Zukalová ◽  
R. Winter ◽  
Martin Wilkening ◽  
...  
Keyword(s):  
Particle Size ◽  
Crystallite Size ◽  
Sol Gel ◽  
High Energy ◽  
Average Particle ◽  
Li Ion Batteries ◽  
Gel Method ◽  
Sol Gel Method ◽  
Li Ion ◽  
20 Nm

Spinel-type structured Li4+xTi5O12 (0 6 x 6 3 ) is actually one of the most promising anode materials for Li ion batteries. In its nanostructured form it is already used in some commercially available Li ion batteries. As was recently shown by our group (Wilkening et al., Phys. Chem. Chem. Phys. 9 (2007) 1239), Li diffusivity in microcrystalline Li4+xTi5O12 with x = 0 is rather slow. In the present contribution the Li conductivity in nanocrystalline samples of the electronic insulator Li4Ti5O12 prepared by different routes is investigated using impedance spectroscopy. The mean crystallite size of the samples is about 20 nm. The ionic conductivity of nanocrystalline Li4Ti5O12 obtained by mechanical treatment is higher by about two orders of magnitude compared to that found for a material which was prepared following a sol-gel method. The latter resembles the behaviour of the microcrystalline sample with an average particle size in the μm range rather than that of a nanocrystalline ball milled one with a mean crystallite size of about than 20 nm. The larger conductivity of the ball milled sample is ascribed to a much higher defect density generated when the particle size is reduced mechanically.

Highly-crystalline γ-MnS nanosaws

RSC Advances ◽  
2014 ◽  
Vol 4 (72) ◽  
pp. 38103-38110 ◽  
Author(s):  
Juan Beltran-Huarac ◽  
Javier Palomino ◽  
Oscar Resto ◽  
Jingzhou Wang ◽  
Wojciech M. Jadwisienczak ◽  
...  
Keyword(s):  
Anode Material ◽  
Li Ion Batteries ◽  
Bottom Up ◽  
Li Ion

Bottom-up approach to fabricate dislocation-free luminescent γ-MnS nanosaws via CVD that can be used as anode material for Li-ion batteries.

Confined Ultrasmall SnO2Particles in Micro/Mesoporous Carbon as an Extremely Long Cycle-Life Anode Material for Li-Ion Batteries

2014 ◽  
Vol 4 (11) ◽  
pp. 1400025 ◽  
Author(s):  
Ali Jahel ◽  
Camélia Matei Ghimbeu ◽  
Laure Monconduit ◽  
Cathie Vix-Guterl
Keyword(s):  
Anode Material ◽  
Mesoporous Carbon ◽  
Cycle Life ◽  
Li Ion Batteries ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Li Ion

Determination of grinding parameters of fenugreek seed

1970 ◽  
Vol 26 (1) ◽  
pp. 16 ◽  
Author(s):  
S Balasubramanian ◽  
Rajkumar Rajkumar ◽  
K K Singh
Keyword(s):  
Particle Size ◽  
Energy Consumption ◽  
Moisture Content ◽  
Specific Energy ◽  
Feed Rate ◽  
Average Particle Size ◽  
Specific Energy Consumption ◽  
Average Particle ◽  
Fenugreek Seeds ◽  
Fenugreek Seed

Experiment to identify ambient grinding conditions and energy consumed was conducted for fenugreek. Fenugreek seeds at three moisture content (5.1%, 11.5% and 17.3%, d.b.) were ground using a micro pulverizer hammer mill with different grinding screen openings (0.5, 1.0 and 1.5 mm) and feed rate (8, 16 and 24 kg h-1) at 3000 rpm. Physical properties of fenugreek seeds were also determined. Specific energy consumptions were found to decrease from 204.67 to 23.09 kJ kg-1 for increasing levels of feed rate and grinder screen openings. On the other hand specific energy consumption increased with increasing moisture content. The highest specific energy consumption was recorded for 17.3% moisture content and 8 kg h-1 feed rate with 0.5 mm screen opening. Average particle size decreased from 1.06 to 0.39 mm with increase of moisture content and grinder screen opening. It has been observed that the average particle size was minimum at 0.5 mm screen opening and 8 kg h-1 feed rate at lower moisture content. Bond’s work index and Kick’s constant were found to increase from 8.97 to 950.92 kWh kg-1 and 0.932 to 78.851 kWh kg-1 with the increase of moisture content, feed rate and grinder screen opening, respectively. Size reduction ratio and grinding effectiveness of fenugreek seed were found to decrease from 4.11 to 1.61 and 0.0118 to 0.0018 with the increase of moisture content, feed rate and grinder screen opening, respectively. The loose and compact bulk densities varied from 219.2 to 719.4 kg m-3 and 137.3 to 736.2 kg m-3, respectively.  

Formulating SLN and NLC as Innovative Drug Delivery Systems for Non-Invasive Routes of Drug Administration

2020 ◽  
Vol 27 (22) ◽  
pp. 3623-3656 ◽  
Author(s):  
Bruno Fonseca-Santos ◽  
Patrícia Bento Silva ◽  
Roberta Balansin Rigon ◽  
Mariana Rillo Sato ◽  
Marlus Chorilli
Keyword(s):  
Drug Delivery ◽  
Particle Size ◽  
Drug Release ◽  
Drug Loading ◽  
Average Particle Size ◽  
Delivery Systems ◽  
Average Particle ◽  
Minor Importance ◽  
Routes Of Administration ◽  
Non Invasive

Colloidal carriers diverge depending on their composition, ability to incorporate drugs and applicability, but the common feature is the small average particle size. Among the carriers with the potential nanostructured drug delivery application there are SLN and NLC. These nanostructured systems consist of complex lipids and highly purified mixtures of glycerides having varying particle size. Also, these systems have shown physical stability, protection capacity of unstable drugs, release control ability, excellent tolerability, possibility of vectorization, and no reported production problems related to large-scale. Several production procedures can be applied to achieve high association efficiency between the bioactive and the carrier, depending on the physicochemical properties of both, as well as on the production procedure applied. The whole set of unique advantages such as enhanced drug loading capacity, prevention of drug expulsion, leads to more flexibility for modulation of drug release and makes Lipid-based nanocarriers (LNCs) versatile delivery system for various routes of administration. The route of administration has a significant impact on the therapeutic outcome of a drug. Thus, the non-invasive routes, which were of minor importance as parts of drug delivery in the past, have assumed added importance drugs, proteins, peptides and biopharmaceuticals drug delivery and these include nasal, buccal, vaginal and transdermal routes. The objective of this paper is to present the state of the art concerning the application of the lipid nanocarriers designated for non-invasive routes of administration. In this manner, this review presents an innovative technological platform to develop nanostructured delivery systems with great versatility of application in non-invasive routes of administration and targeting drug release.

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