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Aggregation in organic phases after solvent extraction of uranyl nitrate: X-ray scattering and molecular dynamic simulations

Paquet, Amaury; Diat, Olivier; Berthon, Laurence; Guilbaud, Philippe

Customer publications

Aggregation in organic phases after solvent extraction of uranyl nitrate: X-ray scattering and molecular dynamic simulations

Paquet, Amaury; Diat, Olivier; Berthon, Laurence; Guilbaud, Philippe

In the framework of spent nuclear fuel reprocessing, N,N‑dialkylamides are molecules of interest for the selective recovery of uranium and plutonium. Two monoamides, DEHBA (N,N‑di‑2‑ethylhexyl‑butyramide) and MOEHA (N,N‑methyl, octyl‑2‑ethylhexanamide), were investigated to evaluate the effect of their structure on the molecular and supramolecular speciation in organic phase. The structure of…
Self-Assembled Block Copolymer Electrolytes: Enabling Superior Ambient Cationic Conductivity and Electrochemical Stability

Pelz, Alexander; Dörr, Tobias Sebastian; Zhang, Peng; de Oliveira, Peter William; Winter, Martin; Wiemhöfer, Hans-Dieter; Kraus, Tobias

Customer publications

Self-Assembled Block Copolymer Electrolytes: Enabling Superior Ambient Cationic Conductivity and Electrochemical Stability

Pelz, Alexander; Dörr, Tobias Sebastian; Zhang, Peng; de Oliveira, Peter William; Winter, Martin; Wiemhöfer, Hans-Dieter; Kraus, Tobias

Block copolymers are promising materials for electrolytes in lithium metal batteries that can be tuned by changing the individual blocks to independently optimize ion transport as well as electrochemical and mechanical stability. We explored the performance of electrolytes based on modified triblock copolymers, poly(isoprene)-block-poly(styrene)-block-poly(ethylene oxide). Large polyethylene…
Local Chain Alignment via Nematic Ordering Reduces Chain Entanglement in Conjugated Polymers

Xie, Renxuan; Aplan, Melissa P.; Caggiano, Nicholas J.; Weisen, Albree R.; Su, Tang; Müller, Christian; Segad, Mo; Colby, Ralph H.; Gomez, Enrique D.

Customer publications

Local Chain Alignment via Nematic Ordering Reduces Chain Entanglement in Conjugated Polymers

Xie, Renxuan; Aplan, Melissa P.; Caggiano, Nicholas J.; Weisen, Albree R.; Su, Tang; Müller, Christian; Segad, Mo; Colby, Ralph H.; Gomez, Enrique D.

Chain entanglements govern the dynamics of polymers and will therefore affect the processability and kinetics of ordering; it follows that through these parameters chain dynamics can also affect charge transport in conjugated polymers. The effect of nematic coupling on chain entanglements is probed by linear viscoelastic measurements on…
Poly(vinylidene fluoride)-based nanocomposite employing oriented Bi2S3 nanorods with double-shell structure for high dielectric performance and loss suppression

Zhang, Lingyu; Wang, Yao; He, Dalong; Deng, Yuan

Customer publications

Poly(vinylidene fluoride)-based nanocomposite employing oriented Bi2S3 nanorods with double-shell structure for high dielectric performance and loss suppression

Zhang, Lingyu; Wang, Yao; He, Dalong; Deng, Yuan

For polymer-based nanocomposites, designing the nanostructures of fillers, their distribution inside matrix as well as interfaces with the polymer is of crucial importance to achieve high dielectric performances. One-dimensional semiconductor Bi2S3 nanorods coated with homogeneous SiO2 and polydopamine (PDA) double shell layers were imported into the poly(vinylidene fluoride) (PVDF) with…
Dispersion of reduced graphene oxide within thermoplastic starch/poly(lactic acid) blends investigated by small-angle X-ray scattering

Ferreira, Willian H.; Dahmouche, Karim; Andrade, Cristina T.

Customer publications

Dispersion of reduced graphene oxide within thermoplastic starch/poly(lactic acid) blends investigated by small-angle X-ray scattering

Ferreira, Willian H.; Dahmouche, Karim; Andrade, Cristina T.

Reduced graphene oxide (rGO) was incorporated into plasticized cornstarch (TPS), poly(lactic acid) (PLA) and their blends. Small-angle X-ray scattering (SAXS) was used to investigate rGO dispersion within the materials. For the TPS/PLA blend at 70:30 composition, the incorporation of rGO led to a larger fraction of small-sized rGO sheets, which…
Uranyl Cation Incorporation in the [P8W48O184]40– Macrocycle Phosphopolytungstate

Dufaye, Maxime; Duval, Sylvain; Stoclet, Grégory; Trivelli, Xavier; Huvé, Marielle; Moissette, Alain; Loiseau, Thierry

Customer publications

Uranyl Cation Incorporation in the [P8W48O184]40– Macrocycle Phosphopolytungstate

Dufaye, Maxime; Duval, Sylvain; Stoclet, Grégory; Trivelli, Xavier; Huvé, Marielle; Moissette, Alain; Loiseau, Thierry

Association of uranyl nitrate with the macrocycle 40– in formate buffered aqueous solution leads to the formation of a new compound (K11.3Li8.1Na22)·89H2O (1). Its characterization by XRD reveals a high disorder of the uranyl cations and the formation of monodimensional chains of anionic 41.4– entities linked through…
A Sequential Slot-Die Coated Ternary System Enables Efficient Flexible Organic Solar Cells

Zhao, Yifan; Wang, Guodong; Wang, Yuheng; Xiao, Tong; Adil, Muhammad Abdullah; Lu, Guanghao; Zhang, Jianqi; Wei, Zhixiang

Customer publications

A Sequential Slot-Die Coated Ternary System Enables Efficient Flexible Organic Solar Cells

Zhao, Yifan; Wang, Guodong; Wang, Yuheng; Xiao, Tong; Adil, Muhammad Abdullah; Lu, Guanghao; Zhang, Jianqi; Wei, Zhixiang

For the preparation of flexible organic solar cells (OSCs), the Roll-to-Roll slot-die coating technique is preferable. Herein, a sequential slot-die (SSD) coating strategy to fabricate flexible OSCs using non halogenated solvent under ambient atmosphere, is developed. The coating order of the active layer materials shows great influence on the performance…