| 1. |
- Admassie, Shimelis, et al.
(author)
-
Biopolymer hybrid electrodes for scalable electricity storage
- 2016
-
In: Materials Horizons. - : ROYAL SOC CHEMISTRY. - 2051-6347 .- 2051-6355. ; 3:3, s. 174-185
-
Research review (peer-reviewed)abstract
- Powering the future, while maintaining a cleaner environment and a strong socioeconomic growth, is going to be one of the biggest challenges faced by mankind in the 21st century. The first step in overcoming the challenge for a sustainable future is to use energy more efficiently so that the demand for fossil fuels can be reduced drastically. The second step is a transition from the use of fossil fuels to renewable energy sources. In this sense, organic electrode materials are becoming increasingly attractive compared to inorganic electrode materials which have reached a plateau regarding performance and have severe drawbacks in terms of cost, safety and environmental friendliness. Using organic composites based on conducting polymers, such as polypyrrole, and abundant, cheap and naturally occurring biopolymers rich in quinones, such as lignin, has recently emerged as an interesting alternative. These materials, which exhibit electronic and ionic conductivity, provide challenging opportunities in the development of new charge storage materials. This review presents an overview of recent developments in organic biopolymer composite electrodes as renewable electroactive materials towards sustainable, cheap and scalable energy storage devices.
|
|
| 2. |
- Gustafsson, Simon, et al.
(author)
-
Mille-feuille paper : a novel type of filter architecture for advanced virus separation applications
- 2016
-
In: Materials Horizons. - Uppsala. - 2051-6347 .- 2051-6355. ; 3:4, s. 320-327
-
Journal article (peer-reviewed)abstract
- Mille-feuille (“a thousand leaves”) paper is the first non-woven, wet-laid filter paper, composed of 100% native cellulose, which is capable of removal of the “worst-case” model virus, the non-enveloped parvoviruses, i.e. minute virus of mice (MVM; 18–20 nm), from water with a log10 reduction value (LRV) >5 (>99.999%). We further illustrate how the flow rate across the mille-feuille paper can be increased exponentially so that flux rates in the order of 350 L m−2 h−1 bar−1 can be potentially achieved.
|
|
| 3. |
- Wu, Yue, et al.
(author)
-
Photoswitching between black and colourless spectra exhibits resettable spatiotemporal logic
- 2016
-
In: Materials Horizons. - : Royal Society of Chemistry. - 2051-6347 .- 2051-6355. ; 3:2, s. 124-129
-
Journal article (peer-reviewed)abstract
- Logic is the key to computing. Traditionally, logic devices have been fabricated by the top-down approach, whose dimensions are drastically limited. The ultimate goal is to use molecular tailorability to design logics using the "bottom-up'' approach. Here we report an unprecedented photochromic molecule that undergoes unimolecular logic switching when excited anywhere in the entire UV-visible spectrum, thus a bottom-up, all-photonic, molecular logic gate. Specifically, these molecular photonic logics embedded in the polymer thin films function as the "AND'' or "OR'' gate at different temporal responses. To achieve high information-processing density, moreover, a ternary flip-flap-flop gate is realized in the molecular logic because the fact that this photochromic molecule can be photoswitched anywhere in its UV-vis spectrum enabled three different lasers (532, 473, and 561 nm) as the inputs to deliver the complex logic optical outputs.
|
|
