NDLI: N-doped graphene quantum sheets on silicon nanowire photocathodes for hydrogen production

Content Provider	Royal Society of Chemistry (RSC)
Author	An, Junghyun Kang, Jin Hyoun Hong, Byung Hee Sim, Uk Nam, Ki Tae Moon, Joonhee Jerng, Sung Eun Moon, Junsang Cho, Sung-Pyo
Copyright Year	2015
Abstract	Photoelectrochemical hydrogen production from solar energy has been attracting much attention in the field of renewable energy technology. The realization of cost-effective hydrogen production by water splitting requires electrolysis or photoelectrochemical cells decorated with highly efficient co-catalysts. A critical requirement for catalysts in photoelectrochemical cells is not only the ability to boost the kinetics of a chemical reaction but also to exhibit durability against electrochemical and photoinduced degradation. In the race to replace previous noble-metal catalysts, the design of carbon-based catalysts represents an important research direction in the search for non-precious, environmentally benign, and corrosion-resistant catalysts. Herein, we suggest graphene quantum sheets as a catalyst for the solar-driven hydrogen evolution reaction on Si nanowire photocathodes. The optimum nanostructures of the Si photocathodes exhibit an enhanced photocurrent and a lower overpotential compared to those of a planar Si surface. This significant enhancement demonstrates how graphene quantum sheet catalysts can be used to produce Si nanowire photocathodes as hydrogen evolution reaction catalysts with high activity.
Starting Page	1329
Ending Page	1338
Page Count	10
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	8
Issue Number	4
Journal	Energy & Environmental Science
DOI	10.1039/c4ee03607g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hydrogen Solar energy Renewable energy Water splitting Electrolysis Photoelectrochemical cell Chemical reaction Electrochemistry Noble metal Graphene Quantum tunnelling Nanowire Photocurrent Overpotential
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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Correction: N-doped graphene quantum sheets on silicon nanowire photocathodes for hydrogen production

Atomic layer deposited molybdenum disulfide on Si photocathodes for highly efficient photoelectrochemical water reduction reaction

N-doped graphene quantum sheets on silicon nanowire photocathodes for hydrogen production

N-doped monolayer graphene catalyst on silicon photocathode for hydrogen production

N-doped WS₂ nanosheets: a high-performance electrocatalyst for the hydrogen evolution reaction

Nanoporous black silicon photocathode for H₂ production by photoelectrochemical water splitting

Recent advances in heterogeneous electrocatalysts for the hydrogen evolution reaction

Hybrid organic–inorganic H₂-evolving photocathodes: understanding the route towards high performance organic photoelectrochemical water splitting

N-doped graphene anchored ultrasmall Ir nanoparticles as bifunctional electrocatalyst for overall water splitting

N-doped graphene quantum sheets on silicon nanowire photocathodes for hydrogen production

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Correction: N-doped graphene quantum sheets on silicon nanowire photocathodes for hydrogen production

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