Synthesis of High-Surface-Area TiN/Carbon Composite Materials with Hierarchical Porosity via “Reactive Templating”

2008 ◽  
Vol 20 (24) ◽  
pp. 7383-7389 ◽  
Author(s):  
Anna Fischer ◽  
Young-Si Jun ◽  
Arne Thomas ◽  
Markus Antonietti
Keyword(s):  
Composite Materials ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Composite ◽  
Hierarchical Porosity ◽  
Carbon Composite Materials

High surface area titanium phosphonate materials with hierarchical porosity for multi-phase adsorption

2010 ◽  
Vol 34 (6) ◽  
pp. 1209 ◽  
Author(s):  
Tian-Yi Ma ◽  
Xiu-Zhen Lin ◽  
Xue-Jun Zhang ◽  
Zhong-Yong Yuan
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Hierarchical Porosity ◽  
Multi Phase

scholarly journals Metal Nanoparticles as Green Catalysts

Materials ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 3602 ◽  
Author(s):  
Neel Narayan ◽  
Ashokkumar Meiyazhagan ◽  
Robert Vajtai
Keyword(s):  
Catalytic Activity ◽  
Composite Materials ◽  
Green Synthesis ◽  
Metal Nanoparticles ◽  
Surface Area ◽  
Significant Role ◽  
High Surface ◽  
High Surface Area ◽  
Catalytic Performance ◽  
Materials Development

Nanoparticles play a significant role in various fields ranging from electronics to composite materials development. Among them, metal nanoparticles have attracted much attention in recent decades due to their high surface area, selectivity, tunable morphologies, and remarkable catalytic activity. In this review, we discuss various possibilities for the synthesis of different metal nanoparticles; specifically, we address some of the green synthesis approaches. In the second part of the paper, we review the catalytic performance of the most commonly used metal nanoparticles and we explore a few roadblocks to the commercialization of the developed metal nanoparticles as efficient catalysts.

Boosting Deionization Capability by Effectively Improving Sodium-ion Storage Capacity Based on Robust Interfacial Electronic Interaction within 3D Na4Ti9O20/N-doped Porous Carbon Heterostructures

2021 ◽  
Author(s):  
Yingying Zhang ◽  
Kun Yang ◽  
Haibiao Yu ◽  
Weijun Shan ◽  
Zhenning Lou ◽  
...  
Keyword(s):  
Hydrothermal Reaction ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Composite ◽  
Electronic Interaction ◽  
Capacitive Deionization ◽  
Ion Storage ◽  
Carbon Composite Materials ◽  
Sodium Ion Storage ◽  
Hydrothermal Reaction Time

A novel preparative approach for hopeful cathode materials of capacitive deionization (CDI) is proposed. Several 3D Na4Ti9O20/N-doped carbon composite materials (NTO/N-C-x, x represents hydrothermal reaction time) with high surface area...

scholarly journals Temperature dependence for high electrical performance of Mn-doped high surface area activated carbon (HSAC) as additives for hybrid capacitor

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zambaga Otgonbayar ◽  
Kamrun Nahar Fatema ◽  
Sunhye Yang ◽  
Ick-Jun Kim ◽  
Minchul Kim ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Surface Area ◽  
High Efficiency ◽  
High Surface ◽  
Specific Capacity ◽  
High Surface Area ◽  
Carbon Composite ◽  
Electrical Performance ◽  
Pore Size Distributions ◽  
Mn Doped

AbstractHerein, we manufactured the positive and negative electrodes for the hybrid capacitor. The Mn-doped High surface area of Activated carbon composite used for the positive electrode and as-prepared composite was calcined at 600 °C and 800 °C. The morphological structures and pore-size distributions of MnYP-600HTT and MnYP-800HTT were characterized by means of XRD, SEM, EDAX, TEM, and BET. According to the BET specific surface-area evaluation, MnYP-600HTT and MnYP-800HTT were 1272.6 and 1388.1 m2/g, respectively. Total pore volumes were 0.627 and 0.687 cm3/g, which is beneficial for forming ion-transport channels in electrochemical reactions. The MnYP-600HTT electrode had a high specific capacity of 177.2 mAh/g at 20C, and the capacity retention was 64.8%. During the entire cycling, MnYP-600HTT had excellent cyclic stability in 500 cycles along with high efficiency. The robust design of the MnYP-600HTT and MnYP-800HTT cathode materials introduced in this work pave the way for designing next-generation supercapacitors operating at ultra-high C rates. The Mn-doped high surface of activated carbon had stable energy density and superior cycling stability that were demonstrated in supercapacitor systems.

Surface Enhancement of Al2O3 Fiber With Nanosized Al2O3 Particles Using A Dry Mechanical Coating Process

2003 ◽  
Vol 125 (2) ◽  
pp. 163-169 ◽  
Author(s):  
Nowarat Coowanitwong ◽  
Chang-Yu Wu ◽  
Judy Nguyen ◽  
Mei Cai ◽  
Martin Ruthkosky ◽  
...  
Keyword(s):  
Composite Materials ◽  
Surface Area ◽  
Processing Time ◽  
High Surface ◽  
High Surface Area ◽  
Rotor Speed ◽  
Durability Test ◽  
Al2o3 Fiber ◽  
Product Surface ◽  
Mechanical Coating

Currently, fabrication of composite materials is of great interest in industry. By combining materials of different properties, we can produce new composite materials with synergetic functionality that individual materials do not possess. In this study, Al2O3 nanosized particles were coated on Al2O3 fiber substrates using a dry mechanical coating technique employing high shear and compression forces. The materials thus synthesized had high surface area with good dispersion for enhanced reactivity and were strong to sustain rigorous operation. Operating parameters, including rotor speed, processing time and initial loading percentage were varied to study their effects on the coating condition. The experimental results showed that the product surface area increased as the nanoparticle loading increased. The dispersion of nanoparticles improved as the processing time increased. A higher rotor speed resulted in a shorter product length while the nanoparticle loading had no effect on the product length. The durability test, conducted in a fluidized bed, indicated no significant change of the coating layer after 7 days of continuous testing.

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