PDF Publication Title:
Text from PDF Page: 031
Ar/H2 plasma, 150 °C, 30 min 7.0a - - Photocatalytic reduction Polyoxometalate cluster (H3PW12O40) - 0.03 (hole) 0.01 (electron) 120 Solvothermal reduction DMF + 0.6 M H2SO4, 1h 8.4a - 1223 H2O:NMP (1:1), 200 °C, 24 h 5.2a - 374 a Obtained via X-ray photoelectron spectroscopy. b Obtained via elemental analysis. 5.3.3 Electrochemicalexfoliation Unlike methods that rely on harsh solvents or oxidants, electrochemical methods take advantage of graphite's conductive properties to intercalate molecules between the graphene layers and therefore trigger exfoliation. Using graphite as an electrode, a positive or negative charge can be imposed on the material, promoting intercalation of oppositely charged ions and facilitating exfoliation. The mechanism for this process is illustrated in Figure 11 93. Oppositely charged species enter between the sheets, expanding them, and reducing the exfoliation energy. Through application of either mechanical based processes or sonication, the sheets can be separated in solution. FIG 11 5.4 Exfoliation methods The following methods have demonstrated liquid-phase exfoliation of graphite into graphene with minimal or no adverse oxidative effects. The number of novel top-down methods is continually growing and, therefore, the list presented below is not intended to be exhaustive. It contains, however, 31PDF Image | graphene production via nonoxidizing liquid exfoliation
PDF Search Title:
graphene production via nonoxidizing liquid exfoliationOriginal File Name Searched:
Graphene-R2-review.pdfDIY PDF Search: Google It | Yahoo | Bing
Salgenx Redox Flow Battery Technology: Power up your energy storage game with Salgenx Salt Water Battery. With its advanced technology, the flow battery provides reliable, scalable, and sustainable energy storage for utility-scale projects. Upgrade to a Salgenx flow battery today and take control of your energy future.
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |