PMID- 31090400
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20190613
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 11
IP  - 22
DP  - 2019 Jun 5
TI  - Surface Engineering of Graphene Oxide Shells Using Lamellar LDH Nanostructures.
PG  - 20232-20240
LID - 10.1021/acsami.8b21265 [doi]
AB  - The discovery of graphene oxide (GO) has made a profound impact on varied areas 
      of research due to its excellent physicochemical properties. However, surface 
      engineering of these nanostructures holds the key to enhanced surface properties. 
      Here, we introduce surface engineering of reduced GO (rGO) shells by radially 
      grafting Ni-Co layered double hydroxide (LDH) lamella on rGO shells to form Ni-Co 
      LDH@rGO. The morphology of synthesized Ni-Co LDH@rGO mimics dendritic cell-like 
      three-dimensional (3D) hierarchical morphologies. Silica nanospheres form 
      self-sacrificial templates during the reduction of GO shells to form rGO shells 
      during the template-assisted synthesis. The radial growth of LDH lamellae during 
      hydrothermal process on GO shells provides access to a significantly larger 
      number of additional active redox sites and overcompensates the loss of 
      pseudocapacitive charge storage centers during the reduction of GO to form rGO 
      shells. This enables in the synthesis of novel surface-engineered rGO nanoshells, 
      which provide large surface area, enhanced redox sites, high porosity, and easy 
      transport of ions. These synthesized 3D dendritic cell-like morphologies of Ni-Co 
      LDH@rGO show a high capacitance of  approximately 2640 F g(-1). A flexible hybrid device 
      fabricated using this nanomaterial shows a high energy density of  approximately 35 Wh kg(-1) 
      and a power density of 750 W kg(-1) at 1 A g(-1). No appreciable compromise in 
      device performance is observed under bending conditions. This synthesis strategy 
      may be used in the development of functional materials useful for potential 
      applications, including sensors, catalysts, and energy storage.
FAU - Karthik Kiran, Sarigamala
AU  - Karthik Kiran S
AD  - Centre for Research in Nanotechnology and Science , Indian Institute of 
      Technology Bombay , Mumbai 400076 , MH , India.
FAU - Shukla, Shobha
AU  - Shukla S
AD  - Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical 
      Engineering and Materials Science , Indian Institute of Technology Bombay , 
      Mumbai 400076 , MH , India.
FAU - Struck, Alexander
AU  - Struck A
AD  - Faculty of Technology and Bionics , Rhein-Waal University of Applied Sciences , 
      Kleve 47533 , Germany.
FAU - Saxena, Sumit
AU  - Saxena S
AUID- ORCID: 0000-0003-2323-4814
AD  - Nanostructures Engineering and Modeling Laboratory, Department of Metallurgical 
      Engineering and Materials Science , Indian Institute of Technology Bombay , 
      Mumbai 400076 , MH , India.
LA  - eng
PT  - Journal Article
DEP - 20190524
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
OTO - NOTNLM
OT  - LDH
OT  - dendritic cell-like morphologies
OT  - energy storage
OT  - graphene oxide
OT  - hybrid material
EDAT- 2019/05/16 06:00
MHDA- 2019/05/16 06:01
CRDT- 2019/05/16 06:00
PHST- 2019/05/16 06:00 [pubmed]
PHST- 2019/05/16 06:01 [medline]
PHST- 2019/05/16 06:00 [entrez]
AID - 10.1021/acsami.8b21265 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2019 Jun 5;11(22):20232-20240. doi: 
      10.1021/acsami.8b21265. Epub 2019 May 24.