Enhanced catalytic activity in strained chemically exfoliated WS 2 nanosheets for hydrogen evolution
Damien Voiry,Hisato Yamaguchi,Junwen Li,Rafael Silva,Diego C. B. Alves,Takeshi Fujita,Mingwei Chen,Tewodros Asefa,Vivek B. Shenoy,Goki Eda,Manish Chhowalla +10 more
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TLDR
Analyses indicate that the enhanced electrocatalytic activity of WS₂ is associated with the high concentration of the strained metallic 1T (octahedral) phase in the as-exfoliated nanosheets.Abstract:
Efficient evolution of hydrogen via electrocatalysis at low overpotentials is promising for clean energy production. Monolayered nanosheets of chemically exfoliated WS2 are shown to be efficient catalysts for hydrogen evolution at very low overpotentials. The enhanced catalytic performance is associated with the high concentration of the strained metallic octahedral phase in the exfoliated nanosheets.read more
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One-Step Synthesis of MoS2/WS2 Layered Heterostructures and Catalytic Activity of Defective Transition Metal Dichalcogenide Films
TL;DR: A one-step synthesis procedure for large-area vdW heterostructures between horizontal TMDCs MoS2 and WS2 is demonstrated, which indicates that, in addition to the catalytically active sulfur edge sites, defect sites may serve as catalyst sites.
Journal ArticleDOI
Sulfur and nitrogen self-doped carbon nanosheets derived from peanut root nodules as high-efficiency non-metal electrocatalyst for hydrogen evolution reaction
Yucheng Zhou,Yanhua Leng,Yanhua Leng,Weijia Zhou,Jilin Huang,Mingwen Zhao,Jie Zhan,Chunhua Feng,Zhenghua Tang,Shaowei Chen,Shaowei Chen,Hong Liu,Hong Liu +12 more
TL;DR: In this paper, sulfur and nitrogen self-doped carbon nanosheets are prepared as efficient non-metal catalysts for hydrogen evolution reaction (HER) by thermal decomposition of peanut root nodules, an abundant biowaste.
Journal ArticleDOI
Synthesis of single-crystal-like nanoporous carbon membranes and their application in overall water splitting
Hong Wang,Shixiong Min,Chun Ma,Zhixiong Liu,Weiyi Zhang,Qiang Wang,Debao Li,Yangyang Li,Stuart Turner,Yu Han,Zhu Haibo,Edy Abou-Hamad,Mohamed N. Hedhili,Jun Pan,Weili Yu,Kuo-Wei Huang,Lain-Jong Li,Jiayin Yuan,Markus Antonietti,Tom Wu +19 more
TL;DR: A simple bottom–up approach to fabricate large-size, freestanding and porous carbon membranes that feature an unusual single-crystal-like graphitic order and hierarchical pore architecture plus favourable nitrogen doping are reported.
Journal ArticleDOI
Controlling the metal to semiconductor transition of MoS2 and WS2 in solution
Stanley S. Chou,Yi Kai Huang,Jaemyung Kim,Bryan Kaehr,Brian M. Foley,Ping Lu,Conner Dykstra,Conner Dykstra,Patrick E. Hopkins,C. Jeffrey Brinker,C. Jeffrey Brinker,Jiaxing Huang,Vinayak P. Dravid +12 more
TL;DR: The dispersion of chemically exfoliated MoS2 sheets in high boiling point organic solvents enabled by surface functionalization and the controllable recovery of their semiconducting properties directly in solution is reported.
Journal ArticleDOI
Efficient Water‐Splitting Device Based on a Bismuth Vanadate Photoanode and Thin‐Film Silicon Solar Cells
Lihao Han,Lihao Han,Fatwa F. Abdi,Fatwa F. Abdi,Roel van de Krol,Rui Liu,Zhuangqun Huang,Hans-Joachim Lewerenz,Bernard Dam,Miro Zeman,Arno H. M. Smets +10 more
TL;DR: A hybrid photovoltaic/photoelectrochemical (PV/PEC) water-splitting device with a benchmark solar-to-hydrogen conversion efficiency of 5.2% under simulated air mass (AM) 1.5 illumination is reported.
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