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Light‐responsive microactuators composed of vertically aligned carbon nanotube (CNT) forests mixed with poly(N‐isopropylacrylamide) (PNIPAM) hydrogel composites are studied. The benefit of this composite is that CNTs act as a black absorber to efficiently capture radiative heating and trigger PNIPAM contraction. In addition, CNT forests can be patterned accurately using lithography to span structures...
Steam‐cracker tar (SCT) is a by‐product of ethylene production that is in massive quantities globally (>150 × 106 tons per year). With few useful applications, the production of unwanted SCT leads to the need for its costly disposal or burning at the boiler plant. The discovery of new uses for SCT would therefore bring both economic and environmental benefits, although, to date, efforts toward...
CO2 photoreduction to C1/C1+ energized molecules is a key reaction of solar fuel technologies. Building heterojunctions can enhance photocatalysts performance, by facilitating charge transfer between two heterojunction phases. The material parameters that control this charge transfer remain unclear. Here, it is hypothesized that governing factors for CO2 photoreduction in gas phase are: i) a large...
In article number 1805473, Camille Petit and co‐workers provide directions to design heterojunctions for solar fuel production. A heterojunction formed of TiO2 nanofibers is shown decorated with metal–organic framework particles. The controlled morphology, obtained via an in‐situ process, enhances charge transfer and CO2 photoreduction.
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