Room-Temperature Hydrogen Adsorption via Spillover in Pt Nanoparticle-Decorated UiO-66 Nanoparticles: Implications for Hydrogen Storage

2021 ◽  
Author(s):  
Po-Cheng Kang ◽  
Yi-Sheng Ou ◽  
Guan-Lin Li ◽  
Jeng-Kuei Chang ◽  
Cheng-Yu Wang
Keyword(s):  
Hydrogen Storage ◽  
Room Temperature ◽  
Hydrogen Adsorption ◽  
Pt Nanoparticle

Pressure Isotherms of Hydrogen Adsorption in Carbon Nanostructures

2001 ◽  
Vol 706 ◽  
Author(s):  
Xiaohong Chen ◽  
Urszula Dettlaff-Weglikowska ◽  
Miroslav Haluska ◽  
Martin Hulman ◽  
Siegmar Roth ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Hydrogen Storage ◽  
Carbon Nanostructures ◽  
Room Temperature ◽  
Storage Capacity ◽  
Hydrogen Adsorption ◽  
Single Wall Carbon Nanotubes ◽  
Hydrogen Storage Capacity ◽  
Carbon And Graphite

AbstractThe hydrogen adsorption capacity of various carbon nanostructures including single-wall carbon nanotubes, graphitic nanofibers, activated carbon, and graphite has been measured as a function of pressure and temperature. Our results show that at room temperature and a pressure of 80 bar the hydrogen storage capacity is less than 1 wt.% for all samples. Upon cooling, the capacity of hydrogen adsorption increases with decreasing temperature and the highest value was observed to be 2.9 wt. % at 50 bar and 77 K. The correlation between hydrogen storage capacity and specific surface area is discussed.

Natural diatomite modified as novel hydrogen storage material

2014 ◽  
Vol 07 (03) ◽  
pp. 1450027 ◽  
Author(s):  
Jiao Jin ◽  
Chenghui Zheng ◽  
Huaming Yang
Keyword(s):  
Hydrogen Storage ◽  
Room Temperature ◽  
Hydrogen Adsorption ◽  
Pd Nanoparticles ◽  
Hydrogen Storage Material ◽  
Storage Material ◽  
Interesting Application ◽  
Thermally Activated ◽  
Adsorption Capacities ◽  
Pore Properties

Natural diatomite, subjected to different modifications, is investigated for hydrogen adsorption capacities at room temperature. An effective metal-modified strategy is developed to disperse platinum ( Pt ) and palladium ( Pd ) nanoparticles on the surface of diatomite. Hydrogen adsorption capacity of pristine diatomite (diatomite) is 0.463 wt.% at 2.63 MPa and 298 K, among the highest of the known sorbents, while that of acid-thermally activated diatomite (A-diatomite) could reach up to 0.833 wt.% due to the appropriate pore properties by activation. By incorporation with a small amount of Pt and Pd (~0.5 wt.%), hydrogen adsorption capacities are enhanced to 0.696 wt.% and 0.980 wt.%, respectively, indicating that activated diatomite shows interesting application in the field of hydrogen storage at room temperature.

Hybridization of inorganic CoB noncrystal with graphene and its Kubas-enhanced hydrogen adsorption at room temperature

RSC Advances ◽  
2016 ◽  
Vol 6 (96) ◽  
pp. 93238-93244 ◽  
Author(s):  
Xiaobo Li ◽  
Shuchao Sun ◽  
Jianjiao Zhang ◽  
Kan Luo ◽  
Peng Gao ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Ball Milling ◽  
Hybrid Material ◽  
Room Temperature ◽  
Hydrogen Adsorption ◽  
High Energy ◽  
Milling Process ◽  
Electrochemical Hydrogen Storage ◽  
Energy Ball ◽  
Storage Ability

In this work an archetypical hybrid material has been prepared by the reaction of an inorganic CoB noncrystal with graphene by a high-energy ball-milling process, which showed an enhanced electrochemical hydrogen storage ability induced by the Co–B–C structure.

scholarly journals Chemical modification of the polymer of intrinsic microporosity PIM-1 for enhanced hydrogen storage

Adsorption ◽  
2020 ◽  
Vol 26 (7) ◽  
pp. 1083-1091
Author(s):  
Mi Tian ◽  
Sébastien Rochat ◽  
Hamish Fawcett ◽  
Andrew D. Burrows ◽  
Christopher R. Bowen ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Hydrogen Adsorption ◽  
Sorption Properties ◽  
Bet Surface Area ◽  
Polymer Modification ◽  
Gas Sorption ◽  
Chemically Modified ◽  
Polymer Of Intrinsic Microporosity ◽  
Intrinsic Microporosity

Abstract A detailed investigation has been carried out of the pre-polymerisation modification of the polymer of intrinsic microporosity PIM-1 by the addition of two methyl (Me) groups to its spirobisindane unit to create a new chemically modified PIM-1 analogue, termed MePIM. Our work explores the effects of this modification on the porosity of PIM-1 and hence on its gas sorption properties. MePIM was successfully synthesised using either low (338 K) or high (423 K) temperature syntheses. It was observed that introduction of methyl groups to the spirobisindane part of PIM-1 generates additional microporous spaces, which significantly increases both surface area and hydrogen storage capacity. The BET surface area (N2 at 77 K) was increased by ~ 12.5%, resulting in a ~ 25% increase of hydrogen adsorption after modification. MePIM also maintains the advantages of good processability and thermal stability. This work provides new insights on a facile polymer modification that enables enhanced gas sorption properties.

ELECTROCHEMICAL STORAGE OF HYDROGEN IN CARBON NANOSTRUCTURES

2003 ◽  
Vol 02 (04n05) ◽  
pp. 307-317
Author(s):  
M. S. YU ◽  
S. Y. CHENG ◽  
Y. C. LIN ◽  
W. C. HO
Keyword(s):  
Carbon Nanostructures ◽  
Room Temperature ◽  
Hydrogen Adsorption ◽  
Abundance Ratio ◽  
Nanostructured Carbon ◽  
Half Cell ◽  
Carbonaceous Particles ◽  
Catalytic Thermal Decomposition ◽  
Electrochemical Storage ◽  
Preliminary Study

We have synthesized a set of nanostructured carbon samples including a variety of carbon nanotubes and carbonaceous particles, by catalytic thermal decomposition of CH4 on catalyst LaNi 5 powder with different reaction temperatures. Products obtained at reaction temperatures 550~900°C were characterized by means of HR-TEM, SEM and Raman Scattering. In addition, electrochemical charge–discharge cycling method was carried out at room temperature to measure the reversible hydrogen capacity in pressed electrodes containing mixture of catalyst, nanostructured carbon samples and carbonaceous particles. Results showed that the abundance ratio of well-crystallized graphite to amorphous carbon in each product increases with increasing reaction temperatures. This preliminary study showed also that the hydrogen storage capacity of synthesis products measured in an electrochemical half-cell at room temperature correlates with the nanostructure and morphology of the variety of nanostructured carbon samples. Additionally, the hydrogen adsorption capacity against specific surface area (BET) for synthesis products produced at temperatures higher than 670°C is ranging from 14 to 25 wt.%/(1000 m2/g).

Study of hydrogen storage by carbonaceous material at room temperature

2007 ◽  
Vol 16 (8) ◽  
pp. 1517-1523 ◽  
Author(s):  
Nor Hasridah Abu Hassan ◽  
Abdul Rahman Mohamed ◽  
Sharif Hussein Sharif Zein
Keyword(s):  
Hydrogen Storage ◽  
Room Temperature ◽  
Carbonaceous Material

Possible Applications of Nanomaterials for Nuclear Fusion Devices

2018 ◽  
Vol 5 (1-2) ◽  
pp. 11-27 ◽  
Author(s):  
Takeo Oku
Keyword(s):  
Hydrogen Storage ◽  
Heavy Ions ◽  
Room Temperature ◽  
Nuclear Fusion ◽  
Alloy Formation ◽  
Muon Catalyzed Fusion ◽  
Energy Materials ◽  
Plasma Facing Components ◽  
Key Points ◽  
Diffusion Calculation

Abstract Conditions of nuclear fusion and nuclear fusion devices were described, and some possible applications of nanomaterials for nuclear fusion devices were presented in the present article. Muon-catalyzed fusion is one of methods for nuclear fusion to cause even at room temperature or lower, and protons or heavy ions with huge energy are irradiated to metals such as beryllium or copper, which results in emission of negative or positive charged muons from the metals. An experiment using a pyroelectric power source using lithium tantalite crystal was also reported to achieve nuclear fusion in a desktop-like device. Hydrogen storage is also important for the fusion devices, and the possibility of hydrogen storage in hydrogen storage metallic alloys was studied by diffusion calculation and potential calculation of deuterium fusion. Enhancement of deuterium diffusion in the Pd alloys would be one of the key points for energy materials. Carbon(C)/copper(Cu)-based composite materials with high thermal conductivity and good stability at high temperatures were also developed by adding a small amount of titanium, which has a low enthalpy of alloy formation with C and Cu. These carbon-based materials could be a candidate material for the plasma facing components of fusion devices.

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