Carbon nanomaterial-assisted morphological tuning for thermodynamic and kinetic destabilization in sodium alanates

2013 ◽  
Vol 1 (17) ◽  
pp. 5238 ◽  
Author(s):  
Yongtao Li ◽  
Fang Fang ◽  
Hongliang Fu ◽  
Jiameng Qiu ◽  
Yun Song ◽  
...  
Keyword(s):  
Carbon Nanomaterial ◽  
Sodium Alanates

A novel metal–organic framework derived carbon nanoflower with effective electromagnetic microwave absorption and high-performance electrochemical energy storage properties

2021 ◽  
Author(s):  
Liwei Zhu ◽  
Ning Liu ◽  
Xincheng Lv ◽  
Ziqiu Zhang ◽  
Liangmin Yu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Microwave Absorption ◽  
High Performance ◽  
Metal Organic Framework ◽  
Electrochemical Energy Storage ◽  
Carbon Nanomaterial ◽  
Energy Storage Properties ◽  
Metal Organic ◽  
Storage Properties ◽  
Electrochemical Energy

A novel carbon nanomaterial with unique morphology was prepared and proven to be an effective material for EMWA and electrochemical energy storage.

scholarly journals Electrolyte-Assisted Hydrogen Cycling in Lithium and Sodium Alanates at Low Pressures and Temperatures

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5868
Author(s):  
Jason Graetz ◽  
John J. Vajo
Keyword(s):  
Growth Parameters ◽  
Reaction Times ◽  
Hydrogen Uptake ◽  
Hydrogen Desorption ◽  
Reaction Rates ◽  
Rate Coefficients ◽  
Aluminum Hydrides ◽  
Dehydrogenation Reactions ◽  
Low Pressures ◽  
Sodium Alanates

An investigation of electrolyte-assisted hydrogen storage reactions in complex aluminum hydrides (LiAlH4 and NaAlH4) reveals significantly reduced reaction times for hydrogen desorption and uptake in the presence of an electrolyte. LiAlH4 evolves ~7.8 wt% H2 over ~3 h in the presence of a Li-KBH4 eutectic at 130 °C compared to ~25 h for the same material without the electrolyte. Similarly, NaAlH4 exhibits 4.8 wt% H2 evolution over ~4 h in the presence of a diglyme electrolyte at 150 °C compared to 4.4 wt% in ~15 h for the same material without the electrolyte. These reduced reaction times are composed of two effects, an increase in reaction rates and a change in the reaction kinetics. While typical solid state dehydrogenation reactions exhibit kinetics with rates that continuously decrease with the extent of reaction, we find that the addition of an electrolyte results in rates that are relatively constant over the full desorption window. Fitting the kinetics to an Avrami-Erofe’ev model supports these observations. The desorption rate coefficients increase in the presence of an electrolyte, suggesting an increase in the velocities of the reactant-product interfaces. In addition, including an electrolyte increases the growth parameters, primarily for the second desorption steps, resulting in the observed relatively constant reaction rates. Similar effects occur upon hydrogen uptake in NaH/Al where the presence of an electrolyte enables hydrogenation under more practical low temperature (75 °C) and pressure (50 bar H2) conditions.

Sorption of plutonium in various oxidation states from aqueous solutions on Taunit carbon nanomaterial

2010 ◽  
Vol 52 (3) ◽  
pp. 276-280 ◽  
Author(s):  
Yu. M. Kulyako ◽  
S. A. Perevalov ◽  
D. A. Malikov ◽  
S. E. Vinokurov ◽  
B. F. Myasoedov
Keyword(s):  
Aqueous Solutions ◽  
Oxidation States ◽  
Carbon Nanomaterial

Polymer Composites Based on Shungite and Taunite-M Carbon Nanomaterial for Radioprotective Coatings

2021 ◽  
Vol 57 (3) ◽  
pp. 475-487
Author(s):  
A. A. Babaev ◽  
A. O. Saadueva ◽  
E. I. Terukov ◽  
A. G. Tkachev
Keyword(s):  
Polymer Composites ◽  
Carbon Nanomaterial

Effects of carbon nanomaterial type and amount on self-sensing capacity of cement paste

Measurement ◽  
2019 ◽  
Vol 134 ◽  
pp. 750-761 ◽  
Author(s):  
Doo-Yeol Yoo ◽  
Ilhwan You ◽  
Goangseup Zi ◽  
Seung-Jung Lee
Keyword(s):  
Cement Paste ◽  
Carbon Nanomaterial

Co@N-doped carbon nanomaterial derived by simple pyrolysis of mixed-ligand MOF as an active and stable oxygen evolution electrocatalyst

2020 ◽  
Vol 529 ◽  
pp. 147081 ◽  
Author(s):  
Gopala Ram Bhadu ◽  
Bhavesh Parmar ◽  
Parth Patel ◽  
Anirban Paul ◽  
Jayesh C. Chaudhari ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Mixed Ligand ◽  
Carbon Nanomaterial ◽  
Stable Oxygen

scholarly journals Sterically Stabilized Multilayer Graphene Nanoshells for Inkjet Printed Resistors

2021 ◽  
Vol 2 (3) ◽  
pp. 394-412
Author(s):  
Michael Orrill ◽  
Dustin Abele ◽  
Michael J. Wagner ◽  
Saniya LeBlanc
Keyword(s):  
Printed Electronics ◽  
Geometric Model ◽  
Multilayer Graphene ◽  
Carbon Nanomaterial ◽  
Post Process ◽  
Analysis Technique ◽  
Adsorption Analysis ◽  
Interparticle Potentials ◽  
The Stability ◽  
Printed Patterns

In the field of printed electronics, there is a pressing need for printable resistors, particularly ones where the resistance can be varied without changing the size of the resistor. This work presents ink synthesis and printing results for variable resistance, inkjet-printed patterns of a novel and sustainable carbon nanomaterial—multilayer graphene nanoshells. Dispersed multilayer graphene nanospheres are sterically stabilized by a surfactant (Triton X100), and no post-process is required to achieve the resistive functionality. A surface tension-based adsorption analysis technique is used to determine the optimal surfactant dosage, and a geometric model explains the conformation of adsorbed surfactant molecules. The energetic interparticle potentials between approaching particles are modeled to assess and compare the stability of sterically and electrostatically stabilized multilayer graphene nanoshells. The multilayer graphene nanoshell inks presented here show a promising new pathway toward sustainable and practical printed resistors that achieve variable resistances within a constant areal footprint without post-processing.

Sign in / Sign up

Export Citation Format

Share Document