Advanced Carbon Aerogels for Energy Applications

Functional Starch Based Carbon Aerogels for Energy Applications

Procedia Engineering ◽

10.1016/j.proeng.2014.12.481 ◽

2014 ◽

Vol 98 ◽

pp. 14-19 ◽

Cited By ~ 18

Author(s):

M. Bakierska ◽

M. Molenda ◽

D. Majda ◽

R. Dziembaj

Keyword(s):

Carbon Aerogels ◽

Energy Applications ◽

Functional Starch

Download Full-text

Advanced carbon aerogels for energy applications

Energy & Environmental Science ◽

10.1039/c0ee00627k ◽

2011 ◽

Vol 4 (3) ◽

pp. 656 ◽

Cited By ~ 448

Author(s):

Juergen Biener ◽

Michael Stadermann ◽

Matthew Suss ◽

Marcus A. Worsley ◽

Monika M. Biener ◽

...

Keyword(s):

Carbon Aerogels ◽

Energy Applications

Download Full-text

Iron Modified Graphitized Carbon Aerogels for Sustainable Energy Applications

MRS Proceedings ◽

10.1557/opl.2013.54 ◽

2013 ◽

Vol 1491 ◽

Cited By ~ 2

Author(s):

Praveen Kolla ◽

Kimberly Kerce ◽

Yong Zhao ◽

Joseph Houk ◽

Yahaya Normah ◽

...

Keyword(s):

Carbon Aerogel ◽

Reduction Reaction ◽

Carbon Aerogels ◽

Nitride Phase ◽

Iron Nitride ◽

Graphene Layers ◽

Energy Applications ◽

Heat Treated ◽

Structure Morphology ◽

Iron Phase

ABSTRACTMesoporous carbon aerogel has been impregnated with iron (10 and 15 wt. %) as a catalyst for graphitization by wet incipient method. The iron modified and non-modified carbon aerogels were heat treated at 900°C, 1200°C, and 1400°C in argon. The crystal structure, morphology, and electro catalytic activity of the resulting nano-composites have been studied. It was found that, the degree of graphitization was proportional to the concentration of Iron phase and the ratio of iron to iron nitride phase in the heat-treated samples. In carbon aerogel sample sintered at 1200°C with 15 wt. % of iron phase, mesoporosity in the range of 3-4 nm and microporosity (< 2nm) was significantly improved by graphitization without affecting the Carbon Aerogels mesoporosity in 10-30 nm range. In this case of 15 wt. % iron doped samples, HRTEM analysis confirms the presence of uniformly distributed ∼43.5nm iron nanoparticles surrounded by graphene layers. Correspondingly, improved graphitization and presence of iron nitride resulted in 3.65 electron assisted oxygen reduction reaction.

Download Full-text

3D-Graphitized and Iron Modified Carbon Aerogels for Sustainable Energy Applications

ECS Transactions ◽

10.1149/05002.1277ecst ◽

2013 ◽

Vol 50 (2) ◽

pp. 1277-1286 ◽

Cited By ~ 1

Author(s):

P. Kolla ◽

K. Kerce ◽

Y. Normah ◽

J. Houk ◽

W. Rhine ◽

...

Keyword(s):

Sustainable Energy ◽

Carbon Aerogels ◽

Energy Applications

Download Full-text

Cost Effective Synthesis and Fabrication of Phase-Pure Kesterite Cu2-xZn1.3SnS4 P-type Absorber Layer Thin Films by Solvent Based Process Technique for Photovoltaic Solar Energy Applications

International Journal of Emerging Research in Management and Technology ◽

10.23956/ijermt.v7i4.5 ◽

2018 ◽

Vol 7 (4) ◽

pp. 36

Author(s):

B. Khadambari ◽

S. S. Bhattacharya

Keyword(s):

Solar Energy ◽

Renewable Energy Sources ◽

Cost Effective ◽

Absorber Layer ◽

Window Layer ◽

Energy Applications ◽

Process Technique ◽

Absorber Material ◽

Effective Synthesis ◽

P Type

Solar has become one of the fastest growing renewable energy sources. With the push towards sustainability it is an excellent solution to resolve the issue of our diminishing finite resources. Alternative photovoltaic systems are of much importance to utilize solar energy efficiently. The Cu-chalcopyrite compounds CuInS2 and CuInSe2 and their alloys provide absorber material of high absorption coefficients of the order of 105 cm-1. Cu2ZnSnS4 (CZTS) is more promising material for photovoltaic applications as Zn and Sn are abundant materials of earth’s crust. Further, the preparation of CZTS-ink facilitates the production of flexible solar cells. The device can be designed with Al doped ZnO as the front contact, n-type window layer (e.g. intrinsic ZnO); an n-type thin film buffer layer (e.g. CdS) and a p-type CZTS absorber layer with Molybdenum (Mo) substrate as back contact. In this study, CZTS films were synthesized by a non-vaccum solvent based process technique from a molecular-ink using a non toxic eco-friendly solvent dimethyl sulfoxide (DMSO). The deposited CZTS films were optimized and characterized by XRD, UV-visible spectroscopy and SEM.

Download Full-text

Lossless Dynamic Models of the Quasi-Z-Source Converter Family

Scientific Journal of Riga Technical University Power and Electrical Engineering ◽

10.2478/v10144-011-0013-y ◽

2011 ◽

Vol 29 (1) ◽

pp. 73-78 ◽

Cited By ~ 1

Author(s):

Dmitri Vinnikov ◽

Oleksandr Husev ◽

Indrek Roasto

Keyword(s):

Renewable Energy ◽

Dynamic Models ◽

Energy Applications

Lossless Dynamic Models of the Quasi-Z-Source Converter FamilyThis paper is devoted to the quasi-Z-source (qZS) converter family. Recently, the qZS-converters have attracted attention because of their specific properties of voltage boost and buck functions with a single switching stage, which could be especially beneficial in renewable energy applications. As main representatives of the qZS-converter family, the traditional quasi-Z-source inverter as well as two novel extended boost quasi-Z-source inverters are discussed. Lossless dynamic models of these topologies are presented and analyzed.

Download Full-text