| 42519 |
Creator |
3d9f5a6838060f791e133fa6e5265b06 |
| 42519 |
Creator |
ext-bb08b958b625de0e3b936bf5f85b38c6 |
| 42519 |
Creator |
ext-3b00062af64738676a9e80122625aedc |
| 42519 |
Creator |
ext-4a6a38955e2b9cbeaec8820292d86b7f |
| 42519 |
Creator |
ext-b07f401a49ebc6653d98823fd10aacad |
| 42519 |
Creator |
ext-b14c4f1da585db8ee75e82e3c486420b |
| 42519 |
Creator |
ext-fc085f69ef5f14b691b21b3d60130e82 |
| 42519 |
Date |
2014 |
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Is Part Of |
repository |
| 42519 |
abstract |
Porous graphitised carbon monoliths embedded with nanodiamonds (CMND) are presented
in this work. Nanodiamond (ND) (sp3 carbon) has a variety of favourable properties
including an interesting and tuneable surface chemistry, mechanical and thermal stability
and conductivity. CMND was prepared using a hard templating method. Bare 5 μm silica
particles and nanodiamonds (5-15 nm diameter) were added to the co-polymerisation
mixture containing a resorcinol/iron(III) complex. Polymerisation of this mixture
was followed by carbonisation at either 900 or 1250 °C under N2. Removal of the silica
template and catalyst was achieved by hydrofluoric acid etching. A blank carbon monolith
(CM blank) was also prepared using bare silica templates for comparative purposes.
BET surface area measurements showed CMND to have a higher specific surface area than
CM blank (400 m2/g and 349 m2/g respectively, with carbonisation at 900 °C). HRTEM
and FESEM characterisation of CMND revealed a variety of interesting carbon nanostructures
to be present in the monolith following carbonisation at 1250 °C. Apparent onion-like
carbon (OLC), carbon nano-rods up to several μm in length and graphene sheets were
observed. OLC clusters can be produced by a temperature-induced transformation of
ND. The temperature of carbonisation was critical in the formation of these carbon
nano-structures, as were the localised heating effects resulting from the thermal
conductivity of ND. Carbon nano-structures have high surface areas and a high sorption
capacity making them suitable for a variety of prospective applications. Porous graphitic
carbons are also receiving significant research interest due to their high surface
areas and bimodal pore structure which make them ideal for use in a variety of applications
including energy storage, as electrode materials or as adsorbents in solid phase extraction. |
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authorList |
authors |
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presentedAt |
ext-5ba0aefa124ce8d97400be673d611b6a |
| 42519 |
status |
peerReviewed |
| 42519 |
type |
AcademicArticle |
| 42519 |
type |
Article |
| 42519 |
label |
Duffy, Emer; Krishnamurthy, Satheesh ; He, Xiaoyun; Nesterenko, Ekaterina P.; Brabazon,
Dermot; Nesterenko, Pavel N. and Paull, Brett (2014). Preparation and properties
of porous graphitic carbon monoliths embedded with nanodiamonds and other temperature-induced
nano carbons. In: 2014 MRS Spring Meeting & Exhibit, 21-25 Apr 2014, San Francisco,
CA. |
| 42519 |
label |
Duffy, Emer; Krishnamurthy, Satheesh ; He, Xiaoyun; Nesterenko, Ekaterina P.; Brabazon,
Dermot; Nesterenko, Pavel N. and Paull, Brett (2014). Preparation and properties
of porous graphitic carbon monoliths embedded with nanodiamonds and other temperature-induced
nano carbons. In: 2014 MRS Spring Meeting & Exhibit, 21-25 Apr 2014, San Francisco,
CA. |
| 42519 |
Title |
Preparation and properties of porous graphitic carbon monoliths embedded with nanodiamonds
and other temperature-induced nano carbons |
| 42519 |
in dataset |
oro |