Monolithic Laser Scribed Graphene Scaffold with Atomic Layer Deposited Platinum for Hydrogen Evolution Reaction
KAUST DepartmentMaterials Science and Engineering Program
Physical Sciences and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/625497
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AbstractThe use of three-dimensional (3D) electrode architectures as scaffolds for conformal deposition of catalysts is an emerging research area with significant potential for electrocatalytic applications. In this study, we report the fabrication of monolithic, self-standing, 3D graphitic carbon scaffold with conformally deposited Pt by atomic layer deposition (ALD) as a hydrogen evolution reaction catalyst. Laser scribing is employed to transform polyimide into 3D porous graphitic carbon, which possesses good electronic conductivity and numerous edge plane sites. This laser scribed graphene (LSG) architecture makes it possible to fabricate monolithic electrocatalyst support without any binders or conductive additives. The synergistic effect between ALD of Pt on 3D network of LSG provides an avenue for minimal yet effective Pt usage, leading to an enhanced HER activity. This strategy establish a general approach for inexpensive and large scale HER device fabrication with minimum catalyst cost.
CitationNayak P, Jiang Q, Kurra N, Wang X, Buttner U, et al. (2017) Monolithic laser scribed graphene scaffolds with atomic layer deposited platinum for the hydrogen evolution reaction. J Mater Chem A. Available: http://dx.doi.org/10.1039/c7ta06236b.
SponsorsResearch reported in this publication is supported by funding from King Abdullah University of Science and Technology (KAUST), Saudi Arabia. Dr. P. Nayak would like to thank DST (Government of India) for the Inspire Faculty Award (Grant No.04/2015/002660).
PublisherRoyal Society of Chemistry (RSC)
JournalJ. Mater. Chem. A