Results 121 to 130 of about 821,355 (285)

A study of some molecular addition compounds of zirconium and hafnium tetrahalides.

open access: yes, 1967
addition complexes MX4-2L, where M is Zr or Hf, x is C1 or Br, and L is tetrahydrofuran or tetrahydrothiophene have been prepared. Thermochemical data have been obtained and the results are interpreted.
Chung, F. M.
core   +2 more sources

Key Drivers of Activity and Selectivity in Cu‐Based Catalysts for Methanol Synthesis From CO2: Insights From Atomically Dispersed Promoters

open access: yesAngewandte Chemie, EarlyView.
Mechanistic studies on model Cu─M/SiO2 catalysts (M = Zn, Ga, and In) reveal that promoters enable a formate spillover pathway from Cu to Mn+ (n = 2 or 3) sites. The promoter's electronic effect on formate bond strengths serves as a quantitative descriptor for activity and selectivity, balancing spillover dynamics with intermediate stabilization to ...
Nat Phongprueksathat   +6 more
wiley   +2 more sources

Voltage and Temperature Acceleration of the Field-Induced Crystallization of Ferroelectric Hafnium Zirconium Oxide

open access: yes
The possibility of an electric field-induced crystallization of hafnium zirconium oxide into its ferroelectric phase enables new device concepts for hardware obfuscation and security applications. While first investigations into the physical mechanism of
Najeeb, Yasser   +7 more
core   +1 more source

Fabrication of Composite Cathode for All‐Solid‐State Sodium Batteries

open access: yesAdvanced Energy Materials, EarlyView.
The design of composite cathodes for all‐solid‐state sodium batteries must address three critical challenges—interfacial side reactions, interfacial delamination, and highly tortuous transport pathways. This work outlines structural and interfacial strategies to optimize ion transport and mechanical stability, enabling durable, and high‐performance ...
Gaoming Sun   +6 more
wiley   +1 more source

Titanium‐Catalyzed Defluorination of Poly(Vinyl Fluoride) and Poly(Vinylidene Fluoride) Under Friedel–Crafts Conditions

open access: yesAngewandte Chemie, EarlyView.
Cationic titanium sandwich catalysts display exceptional activity in the hydrodefluorination of Csp3─F bonds, in the presence of silanes and aromatic solvents (turnover numbers up to 3000). As a result, they can be used to defluorinate challenging fluoropolymers, such as poly(vinyl fluoride) (PVF) or poly(vinylidene fluoride) (PVDF).
Louis Le Moigne   +9 more
wiley   +2 more sources

Tuning parameters and their impact on ferroelectric hafnium oxide

open access: yes, 2022
The 2011 discovery of a ferroelectric phase in doped hafnium oxide [1] and hafnium zirconium oxide solid solution [2] re-established the competitiveness of ferroelectric memory technologies.
Müller, Johannes   +7 more
core  

From Materials to Systems: Challenges and Solutions for Fast‐Charge/Discharge Na‐Ion Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This review systematically analyzes the key characteristics limiting the fast‐charge/discharge capability of Na‐ion batteries (SIBs) from a multi‐scale perspective encompassing electrode materials, the electrode‐electrolyte interface, and the system. Furthermore, it presents practical solution strategies for the fundamental issues arising at each scale,
Bonyoung Ku   +5 more
wiley   +1 more source

Acetylene Semi‐Hydrogenation by Photocatalysis

open access: yesAngewandte Chemie, EarlyView.
Photocatalytic acetylene semi‐hydrogenation is an emerging light‐driven route to polymer‐grade ethylene, offering a mild alternative to energy‐intensive thermocatalysis. By replacing H2 co‐feed with water or other proton sources, these systems can achieve high selectivity under ambient conditions.
Anna Fortunato   +6 more
wiley   +2 more sources

High pressure solid state chemistry of C-N-H and Ti-N systems [PDF]

open access: yes, 2010
This thesis presents the use of molecular precursors for the synthesis of solid-state materials through the application of extreme conditions. The main tool for the exploration of these materials was the diamond anvil cell which generated static ...
Salamat, N.
core  

Toward Capacitive In‐Memory‐Computing: A Device to Systems Level Perspective on the Future of Artificial Intelligence Hardware

open access: yesAdvanced Intelligent Discovery, EarlyView.
Capacitive, charge‐domain compute‐in‐memory (CIM) stores weights as capacitance,eliminating DC sneak paths and IR‐drop, yielding near‐zero standbypower. In this perspective, we present a device to systems level performance analysis of most promising architectures and predict apathway for upscaling capacitive CIM for sustainable edge computing ...
Kapil Bhardwaj   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy