PMID- 22680297
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20121113
LR  - 20120724
IS  - 1936-086X (Electronic)
IS  - 1936-0851 (Linking)
VI  - 6
IP  - 7
DP  - 2012 Jul 24
TI  - Water-dispersible, sulfonated hyperbranched poly(ether-ketone) grafted 
      multiwalled carbon nanotubes as oxygen reduction catalysts.
PG  - 6345-55
LID - 10.1021/nn301863d [doi]
AB  - To endorse sufficient water affinity to multiwalled carbon nanotubes (MWCNTs), 
      dendritic hyperbranched poly(ether-ketone) (HPEK) was first covalently grafted to 
      the surface of a MWCNT via a Friedel-Crafts acylation reaction. The resultant 
      HPEK-grafted MWCNT (HPEK-g-MWCNT) was subsequently sulfonated in chlorosulfonic 
      acid to produce sulfonated HPEK-g-MWCNT (SHPEK-g-MWCNT), which is dispersible 
      well in water showing a zeta potential value of -57.8 mV. The SHPEK-g-MWCNT paper 
      simply formed by filtration of aqueous dispersion has a sheet resistance as low 
      as 63 Omega/sq. Its thin film shows a high electrocatalytic activity for oxygen 
      reduction reaction (ORR). Thus, the newly produced water-dispersible MWCNT is a 
      new class of high performance cathode material for ORR.
FAU - Sohn, Gyung-Joo
AU  - Sohn GJ
AD  - Interdisciplinary School of Green Energy/Low-Dimensional Carbon Materials Center, 
      Ulsan National Institute of Science and Technology, 100 Banyeon, Ulsan 689-798, 
      South Korea.
FAU - Choi, Hyun-Jung
AU  - Choi HJ
FAU - Jeon, In-Yup
AU  - Jeon IY
FAU - Chang, Dong Wook
AU  - Chang DW
FAU - Dai, Liming
AU  - Dai L
FAU - Baek, Jong-Beom
AU  - Baek JB
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20120619
PL  - United States
TA  - ACS Nano
JT  - ACS nano
JID - 101313589
EDAT- 2012/06/12 06:00
MHDA- 2012/06/12 06:01
CRDT- 2012/06/12 06:00
PHST- 2012/06/12 06:00 [entrez]
PHST- 2012/06/12 06:00 [pubmed]
PHST- 2012/06/12 06:01 [medline]
AID - 10.1021/nn301863d [doi]
PST - ppublish
SO  - ACS Nano. 2012 Jul 24;6(7):6345-55. doi: 10.1021/nn301863d. Epub 2012 Jun 19.