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Title: | Near infrared-light responsive WS2 microengines with high-performance electro- And photo-catalytic activities |
Authors: | Asunción-Nadal, Víctor de la; Jurado-Sánchez, Beatriz; Vázquez, Luis ![]() |
Keywords: | Photo-catalytic activities Infrared-light |
Issue Date: | 2019 |
Publisher: | Royal Society of Chemistry (UK) |
Citation: | Chemical Science 11: 132- 140 (2019) |
Abstract: | [EN] Tungsten disulfide (WS)-based micromotors with enhanced electrochemical and photo-catalytic activities are synthesized using a greatly simplified electrochemical deposition protocol at room temperature involving exclusively tungstic acid and sulfate as metal and sulfur sources without further building chemistry. The WS-based micromotors exhibit dual electrochemical and photo-catalytic behavior in the inner and outer layers, respectively, due to the combination of the unique properties of the sp hybridized WS outer layer with highly reactive WS-induced inner catalytic layers, accounting for this material's exclusive enhanced performances. A rough inner Pt-Ni layer allows tailoring the micromotor propulsion, with a speed increase of up to 1.6 times after external control of the micromotor with a magnetic field due to enhanced fuel accessibility. Such a coupling of the attractive capabilities of WS with enhanced micromotor movement holds considerable promise to address the growing energy crisis and environmental pollution concerns. |
Publisher version (URL): | http://dx.doi.org/10.1039/c9sc03156a |
URI: | http://hdl.handle.net/10261/210846 |
DOI: | 10.1039/c9sc03156a |
Identifiers: | doi: 10.1039/c9sc03156a e-issn: 2041-6539 issn: 2041-6520 |
Appears in Collections: | (ICMM) Artículos |
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