Results 91 to 100 of about 729,228 (244)

NiH-Catalyzed Enantio- and Regioselective Hydroselenylation of Unactivated Alkenes. [PDF]

Adv Sci (Weinh)
Nickel‐hydride‐catalyzed enantio‐ and regioselective hydroselenylation of unactivated alkenes provides access to chiral organoselenium compounds. Enantiodetermining Ni–H insertion followed by single‐electron diselenide activation generates selenyl radical.
Kang HJ, Kim J, Hong S.
europepmc   +2 more sources

Chitin‐Chitosan Cryogels for the Reversible Sequestration and Recovery of Heavy Metals From Wastewater

Advanced Materials Technologies, EarlyView.
Chitin‐chitosan cryogels with degrees of N‐acetylation from 12.2% to 71.4% are fabricated by dissolution, coagulation and lyophilization for the sequestration of heavy metals from water. Colorimetry and differential pulse voltammetry showed controlled adsorption and desorption capacities for As5+, Co2+ and Cu2+, making this material attractive for ...
Marta García‐Castrillo, Maialen Uribarrena, Jorge Sáiz, Guillermo Copello, Erlantz Lizundia   +4 more
wiley   +1 more source

A Simple Nickel Catalyst Enables Broad E-Selective Alkyne Semihydrogenation [PDF]

, 2019
A simple and commercially available nickel catalyst for E-selective alkyne semihydrogenation is presented. The protocol is practical and encompasses a wide variety of internal alkynes, with aryl and alkyl substituents tolerated ...
Niklas O., Thiel, Benyapa Kaewmee (7299685), Trung, Tran Ngoc, Trung Tran Ngoc (7299686), Johannes F., Teichert, Benyapa, Kaewmee, Niklas O. Thiel (6235252), Johannes F. Teichert (6081896)   +7 more
core   +3 more sources

Functional Fibers in Soft Robotics: Advances in Material, Structural, and Systemic Tactics

Advanced Robotics Research, EarlyView.
Fiber‐form robotic systems offer a scalable pathway toward embodied intelligence in soft robotics. This review surveys functional fibers as material, structural, and systemic elements, highlighting advances in responsive materials, architectural programing, and fabrication strategies.
Joonhee Won, Jaehyun Jang, Hyeonseo Kim, Inyoung Choi, Steve Park, Seongjun Park   +5 more
wiley   +1 more source

Nickel-Catalyzed C–H Alkynylation of Anilines: Expedient Access to Functionalized Indoles and Purine Nucleobases

, 2016
C–H alkynylations of electron-rich anilines were accomplished by means of user-friendly nickel catalysis. The C–H functionalization occurred with high positional selectivity and ample scope by kinetically relevant C–H activation.
Sebastian Lackner (2835680), Zhixiong Ruan (1931956), Lutz Ackermann (1392253)   +2 more
core   +1 more source

A Perspective on the Applications of Triphasic Gas Storage in Electrochemical Systems

Advanced Science, EarlyView.
Gas storage in microporous materials positioned locally at an electrode or electrocatalyst surface enhances electrochemical processes. Abstract Microporous materials store gases under dry conditions (e.g., hydrogen or oxygen via physisorption), but in some cases microporous materials also show triphasic (e.g., in a solid|gas|liquid system) gas storage ...
Zhongkai Li, Corin T. Scott, Taku Suzuki‐Osborne, John P. Lowe, Dominic Taylor, Mariolino Carta, Neil B. McKeown, Andrew D. Burrows, Lucia H. Mascaro, Frank Marken   +9 more
wiley   +1 more source

Synthesis of Faujasite from Fly Ash and its Applications for Hydrocracking of Petroleum Distillates

Bulletin of Chemical Reaction Engineering & Catalysis, 2007
The synthesis of faujasite from fly ash and its application for hydrocracking catalyst of heavy petroleum distillates have been performed. Faujasite was synthesized from fly ash by hydrothermal reaction in alkaline solution via combination of reflux ...
Sutarno Sutarno, Yateman Arryanto
doaj   +1 more source

A Review on Catalytic Nanostructured Electrodes for Wearable and Implantable Abiotic Glucose Fuel Cells

Advanced Science, EarlyView.
This review identifies current and future directions in abiotic nanostructured catalysts to develop reliable and sustainable glucose fuel cells to power the next generation of bioelectronic devices. ABSTRACT The global rise in incidence of chronic diseases has led to the demand for innovative solutions that help patients manage their conditions with ...
Asghar Niyazi, Hannah S. Leese, Benjamin Metcalfe, Mirella Di Lorenzo   +3 more
wiley   +1 more source

The Importance of Metal‐Organic Framework Linker Atoms for CO2 Reduction: A DFT Study

Advanced Science, EarlyView.
Using DFT, we examine the role of linker atoms in CO2 reduction on copper‐based metal organic frameworks (Cu MOFs). Our calculations reveal that linker atoms may serve as both CO2 and H‐shuttling sites and suggest linker electrostatics as a descriptor for linker activity. ABSTRACT Although the metal within the secondary building unit of a metal‐organic
Ugochukwu Nwosu, Samira Siahrostami
wiley   +1 more source

Nickel laterite processing technologies – where to next? [PDF]

, 2010
A review has been completed of current and proposed processing technologies for nickel laterite ores. Although future supplies of nickel depend on laterite ores, their processing is inherently energy intensive and expensive as, unlike sulphide ores ...
Kyle, J.
core