Enhanced Hydrogen Storage Capacity of High Surface Area Zeolite-like Carbon Materials

2007 ◽  
Vol 129 (6) ◽  
pp. 1673-1679 ◽  
Author(s):  
Zhuxian Yang ◽  
Yongde Xia ◽  
Robert Mokaya
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Carbon Materials ◽  
Storage Capacity ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogen Storage Capacity

scholarly journals Correction: Cigarette butt-derived carbons have ultra-high surface area and unprecedented hydrogen storage capacity

2021 ◽  
Author(s):  
L. Scott Blankenship
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Storage Capacity ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogen Storage Capacity ◽  
Cigarette Butt ◽  
Energy Environ

Correction for ‘Cigarette butt-derived carbons have ultra-high surface area and unprecedented hydrogen storage capacity’ by L. Scott Blankenship et al., Energy Environ. Sci., 2017, 10, 2552–2562, DOI: 10.1039/C7EE02616A.

scholarly journals Cigarette butt-derived carbons have ultra-high surface area and unprecedented hydrogen storage capacity

2017 ◽  
Vol 10 (12) ◽  
pp. 2552-2562 ◽  
Author(s):  
Troy Scott Blankenship ◽  
Robert Mokaya
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Storage Capacity ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogen Storage Capacity ◽  
Cigarette Butt ◽  
Highly Porous

Cigarette butt derived carbons are highly porous (4310 m2 g−1 and 2.09 cm3 g−1) with record levels of hydrogen storage.

Investigation of Polyaniline Nanocomposites and Cross-Linked Polyaniline for Hydrogen Storage

2012 ◽  
Vol 445 ◽  
pp. 571-576 ◽  
Author(s):  
Dervis E. Demirocak ◽  
Sarada Kuravi ◽  
Manoj K. Ram ◽  
Chand K. Jotshi ◽  
Sesha Srinivasan ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Storage Capacity ◽  
Storage System ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogen Sorption ◽  
Commercial Application ◽  
Storage Mechanism ◽  
Hydrogen Storage System

One of the biggest challenges for the commercial application of existing hydrogen storage materials is to meet the desired high volumetric and gravimetric hydrogen storage capacity and the ability to refuel quickly and repetitively as a safe transportation system at moderate temperature and pressure. In this work, we have synthesized polyaniline nanocomposites (PANI-NC) and hypercrosslinked polyaniline (PANI-HYP) materials to provide structure and composition which could meet the specific demands of a practical hydrogen storage system. Hydrogen sorption measurements showed that high surface area porous structure enhanced the storage capacity significantly at 77.3K and 1atm (i.e., 0.8wt% for PANI-HYP). However at 298K, storage capacity of all samples is less than 0.5wt% at 70 bar. Hydrogen sorption results along with the surface area measurements confirmed that hydrogen storage mechanism predominantly based on physisorption for polyaniline.

Electrospun Poly(vinylidene fluoride)-based Carbon Nanofibers for Hydrogen Storage

2004 ◽  
Vol 837 ◽  
Author(s):  
H. J. Chung ◽  
D. W. Lee ◽  
S. M. Jo ◽  
D. Y. Kim ◽  
W. S. Lee
Keyword(s):  
Hydrogen Storage ◽  
Surface Area ◽  
Carbon Nanofibers ◽  
Storage Capacity ◽  
Vinylidene Fluoride ◽  
High Surface ◽  
Gravimetric Method ◽  
Magnetic Suspension ◽  
Hydrogen Storage Capacity ◽  
Poly Vinylidene Fluoride

ABSTRACTPoly(vinylidene fluoride) (PVdF) fine fiber of 200–300 nm in diameter was prepared through the electrospinning process. Dehydrofluorination of PVdF-based fibers for making infusible fiber was carried out using DBU, and the infusible PVdF-based nanofibers were then carbonized at 900–1800°C. The structural properties and morphologies of the resulting carbon nanofibers were investigated using XRD, Raman IR, SEM, TEM, and surface area & pore analysis. The PVdF-based carbon nanofibers had rough surfaces composed of 20-to 30-nm granular carbons, indicating their high surface area in the range of 400–970 m2/g. They showed amorphous structures. In the case of the highly ehydrofluorinated PVdF fiber, the resulting carbon fiber had a smoother surface, with d002 = 0.34–0.36 nm, and a very low surface area of 16–33 m2/g. The hydrogen storage capacities of the above carbon nano-fibers were measured, using the gravimetric method, by magnetic suspension balance (MSB), at room temperature and at 100 bars. The storage data were obtained after the buoyancy correction. The PVdF-based microporous carbon nanofibers showed a hydrogen storage capacity of 0.04–0.4 wt%. The hydrogen storage capacity depended on the dehydrofluorination of the PVdF nanofiber precursor, and on the carbonization temperatures.

Effects of Ni Particle Size on Hydrogen Storage of Ni-Doped High Surface Area Activated Carbon

2013 ◽  
Vol 66 (5) ◽  
pp. 548 ◽  
Author(s):  
Lufeng Yang ◽  
Chunlin Xie ◽  
Chaofan Hu ◽  
Mingtao Zheng ◽  
Haibo Wang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Hydrogen Storage ◽  
Surface Area ◽  
Storage Capacity ◽  
High Surface ◽  
High Surface Area ◽  
Spillover Effect ◽  
Critical Factor ◽  
Ni Catalyst ◽  
Effective Role

A type of activated carbon that is further chemically activated to obtain a high surface area (~3322 m2 g–1) (hsAC), is loaded with nickel nanoparticles by a direct hydrothermal method, and tested for hydrogen storage. The chemical composition, crystal structure, and microstructure of hsAC with or without Ni loading are characterised in addition to the nitrogen absorbance isotherms. Hydrogen storage studies showed that metal doping has no effect on the cryogenic storage, and the maximum room temperature (RT) storage capacity through spillover on the Ni-doped hsAC materials achieved 0.79 wt-% at 30 Pa with enhancement factors of 2.93. The smaller catalyst size was a critical factor that determined the enhancement of RT storage capacity of the materials. The Ni catalyst size was controlled by the doped Ni content. Tuning the Ni catalyst size together with an optimum carbon spillover receptor should play an effective role in further enhancement by the spillover effect.

scholarly journals Dopamine Assisted One-Step Pyrolysis of Glucose for the Preparation of Porous Carbon with A High Surface Area

Nanomaterials ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 854 ◽  
Author(s):  
Hanbo Xiao ◽  
Cheng-an Tao ◽  
Yujiao Li ◽  
Xianzhe Chen ◽  
Jian Huang ◽  
...  
Keyword(s):  
Surface Area ◽  
Porous Carbon ◽  
Carbon Materials ◽  
High Current Density ◽  
High Surface ◽  
High Surface Area ◽  
Energy Storage Materials ◽  
One Pot ◽  
Component Structure ◽  
Porous Carbon Materials

Herein, a facile dopamine assisted one-pot synthesis approach is proposed for the preparation of porous carbon with a specific surface area (SSA) up to 2593 m2/g through the direct pyrolysis of a mixture of glucose, NH4Cl, and dopamine hydrochloride (DAH). The glucose is adopted as the carbon source and foaming agent, NH4Cl is used as the blowing agent, and DAH is served as collaborative carbon precursor as well as the nitrogen source for the first time. The effect of dopamine on the component, structure, and SSA of the as-prepared porous carbon materials are systematically studied. The moderate addition of dopamine, which influences the condensation and polymerization of glucose, matches better with ammonium salt decomposition. The SSA of porous carbon increases first and then decreases with the increasing amount of dopamine. In our case, the porous carbon produced with 5 wt% dopamine (PC-5) achieves the maximum SSA of up to 2593 m2/g. Accordingly, it also shows the greatest electrochemical performance. The PC-5 shows a capacitance of 96.7 F/g calculated from the discharge curve at 1 A/g. It also has a good capacitive rate capacity, the specific capacitance can still maintain 80%, even at a high current density of 10 A/g. Moreover, PC-5 exhibits a good cycling stability of 98.1% capacitive retention after 1000 cycles. The proposed method may show promising prospects for preparing porous carbon materials as advanced energy storage materials, storage, and catalyst supports.

scholarly journals Structural Flexibility in Activated Carbon Materials Prepared under Harsh Activation Conditions

Materials ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 1988 ◽  
Author(s):  
Fabiano Gomes Ferreira de Paula ◽  
Ignacio Campello-Gómez ◽  
Paulo Fernando Ribeiro Ortega ◽  
Francisco Rodríguez-Reinoso ◽  
Manuel Martínez-Escandell ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Surface Area ◽  
Structural Changes ◽  
Organic Molecules ◽  
Carbon Materials ◽  
High Surface ◽  
High Surface Area ◽  
Koh Activation ◽  
3D Network ◽  
Activation Conditions

Although traditionally high-surface area carbon materials have been considered as rigid structures with a disordered three dimensional (3D) network of graphite microdomains associated with a limited electrical conductivity (highly depending on the porous structure and surface chemistry), here we show for the first time that this is not the case for activated carbon materials prepared using harsh activation conditions (e.g., KOH activation). In these specific samples a clear structural re-orientation can be observed upon adsorption of different organic molecules, the structural changes giving rise to important changes in the electrical resistivity of the material. Whereas short chain hydrocarbons and their derivatives give rise to an increased resistivity, the contrary occurs for longer-chain hydrocarbons and/or alcohols. The high sensitivity of these high-surface area carbon materials towards these organic molecules opens the gate towards their application for sensing devices.

Investigation of hydrogen storage capacity of various carbon materials

2007 ◽  
Vol 32 (13) ◽  
pp. 2504-2512 ◽  
Author(s):  
W XU ◽  
K TAKAHASHI ◽  
Y MATSUO ◽  
Y HATTORI ◽  
M KUMAGAI ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Carbon Materials ◽  
Storage Capacity ◽  
Hydrogen Storage Capacity
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