CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
Evaluation of bimetallic catalysts for the growth of carbon nanotube forests
Authors
,
,
+10 more
L D'Arsié
S Esconjauregui
D Hardeman
T Makaryan
J Robertson
H Sugime
C Thomsen
H Tornatzky
R Xie
J Yang
Publication date
1 January 2013
Publisher
Abstract
We systematically study the growth of carbon nanotube forests by chemical vapor deposition using evaporated monometallic or bimetallic Ni, Co, or Fe films supported on alumina. Our results show two regimes of catalytic activity. When the total thickness of catalyst is larger than nominally 1nm, bimetallic catalysts tend to outperform the equivalent layers of a single metal, yielding taller forests of multi-walled carbon nanotubes (CNTs). In contrast, for layers thinner than ~1nm, bimetallic catalysts are notably less active than individually. However, the amount of small diameter and single-walled CNTs is significantly increased. This possible transition at ~1nm might be related to different catalyst composition after annealing, depending whether or not the films overlap during evaporation and alloy during catalyst formation. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Similar works
Full text
Available Versions
CUED - Cambridge University Engineering Department
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:generic.eprints.org:602380...
Last time updated on 15/07/2020
CUED - Cambridge University Engineering Department
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:generic.eprints.org:603749...
Last time updated on 15/07/2020