Graphene-Carbon Nanotube Hybrids for Energy and by Wei Fan, Longsheng Zhang, Tianxi Liu

By Wei Fan, Longsheng Zhang, Tianxi Liu

This booklet describes quite a few carbon nanomaterials and their special homes, and provides a close creation to graphene–carbon nanotube (CNT) hybrids. It demonstrates recommendations for the hybridization of CNTs with graphene, which totally make the most of the synergistic impact among graphene and CNTs. It additionally provides a variety of purposes of graphene–CNT hybrids as novel fabrics for strength garage and environmental remediation. extra, it discusses the guidance, constructions and homes of graphene–CNT hybrids, offering attention-grabbing examples of 3 varieties of graphene–CNT hybrids with various nanostructures. This booklet is of curiosity to a large readership in a variety of fields of fabrics technology and engineering.

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Carbon 49:3371–3375 11. Pan Y, Bao H, Li L (2011) Noncovalently functionalized multiwalled carbon nanotubes by chitosan-grafted reduced graphene oxide and their synergistic reinforcing effects in chitosan films. ACS Appl Mater Interfaces 3:4819–4830 12. Kotal M, Bhowmick AK (2013) Multifunctional hybrid materials based on carbon nanotube chemically bonded to reduced graphene oxide. J Phys Chem C 117:25865–25875 13. Dong X, Xing G, Chan-Park MB, Shi W, Xiao N, Wang J, Yan Q, Sum TC, Huang W, Chen P (2011) The formation of a carbon nanotube–graphene oxide core–shell structure and its possible applications.

50]. Copyright 2011 Royal Society of Chemistry illustrated in Fig. 13a. The side-view SEM images of the sandwiched structure at different magnifications (Fig. 13b, c) show that the B-CNT with a height of about 15 μm is mostly straight, just like those CNTs grown without graphene film on top. The as-grown T-CNT is obviously curved, and the distinct interface between T-CNT and B-CNT belongs to the layered graphene marked by the dashed rectangle in Fig. 13d. During the CVD growth, the deposit of catalyst are very important with Fe catalysts deposited on graphene and the Al2O3 buffer layer on top of Fe, which ensures the subsequent tip growth of B-CNT lifting the Al2O3/Fe film.

C, d SEM images of aligned CNT/graphene/vermiculite composite. e TGA curve of the aligned CNT/graphene sandwiches under O2 atmosphere. f, g SEM images of the aligned CNT/graphene sandwiches. The arrowed gaps were generated after the removal of the vermiculite flake. Reprinted with the permission from Ref. [60]. Copyright 2014 Elsevier graphene-CNT hybrids at high temperature [58]. Hydrotalcite-like LDHs materials, comprised of positively charged layers and charge-balancing interlayer anions, are considered as excellent catalysts for the CVD growth of graphene/SWCNT (G/SWCNT) hybrids.

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