| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Borghei, Maryam
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2024Wood flour and Kraft lignin enable air-drying of the nanocellulose-based 3D-printed structurescitations
- 2023Immobilized cellulose nanospheres enable rapid antigen detection in lateral flow immunoassayscitations
- 2021Systematic analysis on the effect of sintering temperature for optimized performance of li0.15ni0.45zn0.4o2-gd0.2ce0.8o2-li2co3-na2co3-k2co3 based 3d printed single-layer ceramic fuel cellcitations
- 2020Mesoporous Carbon Microfibers for Electroactive Materials Derived from Lignocellulose Nanofibrilscitations
- 2019Solvent Welding and Imprinting Cellulose Nanofiber Films Using Ionic Liquidscitations
- 2019Nanocellulose and Nanochitin Cryogels Improve the Efficiency of Dye Solar Cellscitations
- 2019Nanocellulose and Nanochitin Cryogels Improve the Efficiency of Dye Solar Cellscitations
- 2019Coupling Nanofibril Lateral Size and Residual Lignin to Tailor the Properties of Lignocellulose Filmscitations
- 2019Conductive Carbon Microfibers Derived from Wet-Spun Lignin/Nanocellulose Hydrogelscitations
- 2019Machine Learning assisted design of tailor-made nanocellulose filmscitations
- 2018Biobased aerogels with different surface charge as electrolyte carrier membranes in quantum dot-sensitized solar cellcitations
- 2018Experimental and Computational Investigation of Hydrogen Evolution Reaction Mechanism on Nitrogen Functionalized Carbon Nanotubescitations
- 2016Mesoporous carbon soft-templated from lignin nanofiber networks: Microphase separation boosts supercapacitance in conductive electrodescitations
- 2014Influence of different carbon nanostructures on the electrocatalytic activity and stability of Pt supported electrocatalystscitations
- 2014Influence of different carbon nanostructures on the electrocatalytic activity and stability of Pt supported electrocatalystscitations
- 2013Durability of Carbon Nanofiber (CNF) & Carbon Nanotube (CNT) as Catalyst Support for Proton Exchange Membrane Fuel Cellscitations
Places of action
| Organizations | Location | People |
|---|
article
Nanocellulose and Nanochitin Cryogels Improve the Efficiency of Dye Solar Cells
Abstract
<p>Biobased cryogel membranes were applied as electrolyte holders in dye solar cells (DSC) while facilitating carrier transport during operation. They also improved device performance and stability. For this purpose, cellulose nanofibers (CNF), TEMPO-oxidized CNF (TOCNF), bacterial cellulose (BC), and chitin nanofibers (ChNF) were investigated. The proposed materials and protocols for incorporating the electrolyte, via simple casting, avoided the typical problems associated with injection of the electrolyte through filling holes, a major difficulty especially in manufacturing large area cells. Owing to the fact that cryogel membranes did not require any orifice for injection, they were effective in minimizing leakage and in retaining liquid electrolyte. The results indicated the reduction of performance losses compared to conventional electrolyte filling, likely due to the better spatial distribution of electrolyte. DSCs based on BC cryogels had an initially higher performance and similar stability compared to those of the reference cells. When compared to reference cells, CNF and ChNF cryogels produced higher initial performance, but they underwent a faster degradation. The difference in stability was attributed to the effect of residual components, including lignin in CNF and proteins in ChNF, as demonstrated in bleaching experiments. TOCNF indicated a relatively poor performance, most likely because of residual aldehydes. Overall, we offer a comprehensive evaluation based on current-voltage (IV) profiles under simulated sunlight, incident photon-to-charge carrier efficiency (IPCE), electrochemical impedance spectroscopy (EIS), and color image processing, together with accelerated DSC stability tests, to unveil the effects of new membrane-based assembly. Our results give guidelines for future developments related in particular to the effects of the tested biomaterials on device stability.</p>