Results 41 to 50 of about 31,276 (258)

Depolymerization and Reuse of Polycarbonates: Emerging Classes, Mechanisms and Challenges

Angewandte Chemie, EarlyView.
This review collects the latest developments in the area of chemical and catalytic polycarbonate recycling strategies and includes the controlled degradation of similar types of macromolecules. Apart from the main strategies for deconstruction, the key mechanistic features of these depolymerization processes are also discussed together with the ...
Davide Rigo, David H. Lamparelli, Antonio Buonerba, Carmine Capacchione, Arjan W. Kleij   +4 more
wiley   +2 more sources

Hydrazine Borane and Hydrazinidoboranes as Chemical Hydrogen Storage Materials

Energies, 2015
Hydrazine borane N2H4BH3 and alkali derivatives (i.e., lithium, sodium and potassium hydrazinidoboranes MN2H3BH3 with M = Li, Na and K) have been considered as potential chemical hydrogen storage materials.
Romain Moury, Umit B. Demirci
doaj   +1 more source

Chiral Aminoalcohols and Squaric Acid Amides as Ligands for Asymmetric Borane Reduction of Ketones: Insight to In Situ Formed Catalytic System by DOSY and Multinuclear NMR Experiments

Molecules, 2021
A series of squaric acid amides (synthesized in 66–99% isolated yields) and a set of chiral aminoalcohols were comparatively studied as ligands in a model reaction of reduction of α-chloroacetophenone with BH3•SMe2.
Yana Nikolova, Georgi M. Dobrikov, Zhanina Petkova, Pavletta Shestakova   +3 more
doaj   +1 more source

The onset of dehydrogenation in solid Ammonia Borane, an ab-initio metadynamics study

, 2019
The discovery of effective hydrogen storage materials is fundamental for the progress of a clean energy economy. Ammonia borane ($\mathrm{H_3BNH_3}$) has attracted great interest as a promising candidate but the reaction path that leads from its solid ...
Parrinello, Michele, Polino, Daniela, Rizzi, Valerio, Russo, Nino, Sicilia, Emilia   +4 more
core   +1 more source

Ammonia borane-based nanocomposites as solid state hydrogen stores for portable power applications [PDF]

, 2018
Ammonia borane (AB) based nanocomposites have been investigated with the aim of developing a promising solid-state hydrogen store that complies with the requirements of a modular polymer electrolyte membrane fuel cell (PEM FC) in a portable power pack ...
Bielewski, Marek, Bravo Diaz, Laura, Gregory, Duncan, Hanlon, James, Milewska, Aleksandra   +4 more
core   +1 more source

Mild Generation of Highly Nucleophilic N-Heterocyclic Carbene Boryl Anion From Neutral sp²-sp³ Diboron Reagents and Its Applications in Nucleophilic Borylation. [PDF]

Angew Chem Int Ed Engl
A less hindered and highly nucleophilic N‐heterocyclic carbene (NHC) boryl anion is generated at room temperature by reacting sp2–sp3 diboron reagent (NHC)BH2Bpin with KOtBu. This highly reactive anion demonstrates broad reactivity with various electrophiles, including those traditionally considered inert, enabling their efficient borylation.
Sun W, Zhang P, Lyu H.
europepmc   +2 more sources

Bis(silylene)‐Mediated N═N Bond Scission of Diazo Compounds

Angewandte Chemie, EarlyView.
The carborane‐based bis(silylene) enables unprecedented N═N bond scission in diazodiarylmethanes. While xanthene‐ and aniline‐based scaffolds promote end‐on addition with partial N═N activation, the carborane‐based variant uniquely achieves complete N═N bond scission of Ar2C═N═N compounds, resulting in isolable disilicon nitride imino species.
Yun Xiong, Shenglai Yao, Matthias Driess
wiley   +2 more sources

Ni0.25Co0.75O nanowire array supported on Cu@CuO foam, an inexpensive and durable catalyst for hydrogen generation from ammonia borane

Catalysis Communications, 2021
The development of highly active and stable catalysts is desirable for hydrogen generation from ammonia borane (AB). In this study, Ni0.25Co0.75O nanowire array supported on Cu@CuO foam (Ni0.25Co0.75O/Cu@CuO) has been successfully fabricated.
Yufa Feng, Fei Lv, Huize Wang, Xiaodong Chen, Hang Li, Zhiyu Chen, Guangyu Lin, Jinyun Liao, Mingyang He, Quanbing Liu   +9 more
doaj   +1 more source

Synthesis and Structural Characterization of Amidine, Amide, Urea and Isocyanate Derivatives of the Amino-closo-dodecaborate Anion [B₁₂H₁₁NH₃]⁻

Molecules, 2018
The synthesis and structural characterization of new derivatives of [B12H12]2− is of fundamental interest and is expected to allow for extended applications.
Yuanbin Zhang, Yuji Sun, Tao Wang, Jiyong Liu, Bernhard Spingler, Simon Duttwyler   +5 more
doaj   +1 more source

Solvent‐Mediated Reactivity Control of Lewis‐Paired Dopants as a Versatile Strategy for Tunable and Stable Doping of Organic Semiconductors

Advanced Materials, EarlyView.
Solvent‐mediated reactivity control of Lewis‐paired dopants enables highly efficient, finely tunable, and stable doping of organic semiconductors. The optimally doped semiconductor films exhibit superior thermoelectric performance and doping stability, feature delocalized polarons along structurally ordered polymer backbones, and outperform ...
Sang Beom Kim, Eui Hyun Suh, Taek Seong Lee, Andreas W. Erhardt, Iain McCulloch, Jaeyoung Jang   +5 more
wiley   +1 more source