Cited Article: Holt JK. Fast mass transport through sub-2-nanometer carbon nanotubes
Alert Expires: 18 OCT 2009
Number of Citing Articles: 2 new records this week (2 in this e-mail)
Organization ID: 3b97d1bbc1878baed0ab183d8b03130b
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PT J
*Record 1 of 2.
L5 <http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS&DestLinkType=FullRecord;UT=000266283400011>
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AU Lebert, M
Kaempgen, M
Soehn, M
Wirth, T
Roth, S
Nicoloso, N
AF Lebert, M.
Kaempgen, M.
Soehn, M.
Wirth, T.
Roth, S.
Nicoloso, N.
TI Fuel cell electrodes using carbon nanostructures
SO CATALYSIS TODAY
LA English
DT Proceedings Paper
DE Carbon nanotubes; Fuel cell; GDE; HT-PEMFC; PAFC; PEMFC; SWNT; MWNT
ID PARYLENE-N; NANOTUBES; ELECTROCATALYSTS
AB The use of carbon nanotubes (SWNT, MWNT, and aligned CNT) for low and
intermediate temperature fuel cells has been investigated with thin
film CNT/Pt-electrodes of(1<d<10 mu m). For membrane electrode assembly
(MEA) the electrodes were combined either with Nafion (R) 117 or
polycarbonate (PC) membranes wetted with H3PO4. The fuel cell
characteristics of the CNT-based MEAs were determined at atmospheric
pressure. different catalyst concentrations (Pt) and temperatures
(RT<T<150 degrees C). The performance is competitive to
well-established phosphoric acid (PAFCs) or polymer electrolyte
membrane fuel cell (PEMFC), e.g. PBI/H3PO4. Liquid state processing of
CNTs allows flexible electrode design and opens new ways for integrated
and significantly mass-/volume-reduced fuel cell electrodes with high
saving potential for catalyst and carbon material. Microsized high
performance power supplies and battery chargers for consumer
electronics are the most promising applications. (C) 2008 Elsevier B.V.
All rights reserved.
C1 [Lebert, M.; Roth, S.] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany.
[Kaempgen, M.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA USA.
[Soehn, M.; Nicoloso, N.] Tech Univ Darmstadt, Dept Renewable Energies, D-64283 Darmstadt, Germany.
[Wirth, T.] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England.
RP Lebert, M, Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany.
EM michael.lebert@daimler.com
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NR 23
TC 0
PU ELSEVIER SCIENCE BV; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5861
DI 10.1016/j.cattod.2008.10.043
PD MAY 15
VL 143
IS 1-2
BP 64
EP 68
SC Chemistry, Applied; Chemistry, Physical; Engineering, Chemical
GA 448SX
UT ISI:000266283400011
ER
PT J
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AU Belmonte, M
Gonzalez-Julian, J
Miranzo, P
Osendi, MI
AF Belmonte, Manuel
Gonzalez-Julian, Jesus
Miranzo, Pilar
Isabel Osendi, Maria
TI Continuous in situ functionally graded silicon nitride materials
SO ACTA MATERIALIA
LA English
DT Article
DE Functionally graded materials; Ceramics; Spark plasma sintering;
Hardness; Toughness
ID ELECTRIC-FIELD; MECHANICAL-PROPERTIES; CONTACT-DAMAGE; CERAMICS;
MICROSTRUCTURE; FABRICATION
AB Functionally graded materials can enhance the performance of components
under demanding operating conditions, although the development of
residual stresses across the gradient and scaling LIP the manufacturing
process to mass production present some limitations. To overcome these
problems, we present a one-step approach for processing continuous
functionally graded silicon nitride (Si3N4) materials from a sole
homogeneous powder composition, using spark plasma sintering as a
densification technique. Through the control of the temperature profile
within the compact, specimens with a continuous variation of alpha- and
beta-phase content, as well as grain size, were achieved. A continuous
gradation of mechanical properties, in particular, hardness and
toughness, were measured in these specimens. This approach offers
unprecedented opportunities to design custom-made Si3N4 components by
taking advantage of the particularities of field-assisted sintering
methods. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All
rights reserved.
C1 [Belmonte, Manuel; Gonzalez-Julian, Jesus; Miranzo, Pilar; Isabel Osendi, Maria] CSIC, Inst Ceram & Glass, E-28049 Madrid, Spain.
RP Belmonte, M, CSIC, Inst Ceram & Glass, Campus Cantoblanco,Kelsen 5,
E-28049 Madrid, Spain.
EM mbelmonte@icv.csic.es
CR 2001, 2001220247, JP
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NR 35
TC 0
PU PERGAMON-ELSEVIER SCIENCE LTD; THE BOULEVARD, LANGFORD LANE,
KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
DI 10.1016/j.actamat.2009.01.043
PD MAY
VL 57
IS 9
BP 2607
EP 2612
SC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
GA 447GT
UT ISI:000266180300001
ER
EF
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