期刊
ADVANCED MATERIALS
卷 29, 期 37, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201702211
关键词
hydrogen evolution reaction; laser-induced graphene; oxygen evolution reaction; supercapacitors; wood
类别
资金
- Air Force Office of Scientific Research [FA9550-14-1-0111]
- National Science Foundation Nanosystems Engineering Research Center (ERC) for Nanotechnology-Enabled Water Treatment [ERC-1449500]
- China Scholarship Council
- Universal Laser Systems
Wood as a renewable naturally occurring resource has been the focus of much research and commercial interests in applications ranging from building construction to chemicals production. Here, a facile approach is reported to transform wood into hierarchical porous graphene using CO2 laser scribing. Studies reveal that the crosslinked lignocellulose structure inherent in wood with higher lignin content is more favorable for the generation of high-quality graphene than wood with lower lignin content. Because of its high electrical conductivity (approximate to 10 Omega per square), graphene patterned on wood surfaces can be readily fabricated into various high-performance devices, such as hydrogen evolution and oxygen evolution electrodes for overall water splitting with high reaction rates at low overpotentials, and supercapacitors for energy storage with high capacitance. The versatility of this technique in formation of multifunctional wood hybrids can inspire both research and industrial interest in the development of wood-derived graphene materials and their nanodevices.
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