Results 111 to 120 of about 165,930,789 (165)

Efficient Solar‐Driven Interfacial Steam‐Electricity Co‐Generation by Modular Design of CAU‐23/Graphene Hybrid Evaporator

Carbon Energy, EarlyView.
A dual‐functional evaporator based on CAU‐23/graphene hybrid is acquired through a modular design strategy. Owing to superior broadband light absorption, optimal wettability, and porous architecture that synergistically integrates nanoconfined ionic channels with photothermal conversion, it exhibits a high evaporation rate of 2.71 kg m−2 h−1 with the ...
Hangyuan Du, Huiyue Wang, Xueying Wen, Qianyu Wei, Junhao Ai, Chang Liu, Guixin Hu, Ran Niu, Jiang Gong   +8 more
wiley   +1 more source

Sustainable Germanium Recovery From Germanium Dioxide via Halogen‐Free Chemical Vapor Transport

Chemistry – A European Journal, EarlyView.
Recovery of the critical element Ge from GeO2 and SiO2/GeO2 mixtures was investigated based on an endothermic chemical vapor transport via GeO, formed with natural gas or a hydrogen(10%)‑argon(90%) mixture and water vapor. (This picture was partly created with AI, engine: Adobe Firefly).
Julian Burkhart, Christian A. Bömer, Jana Milanovic, Victoria S. Drescher, Igor Atanasov, Moritz Maxeiner, Klaus Müller‑Buschbaum   +6 more
wiley   +1 more source

Improving the Mechanical Properties of Biodegradable Polyhydroxyalkanoates via PHA–PHA Block‐Copolymer Synthesis

Chemistry – A European Journal, EarlyView.
Covalent linkage of a highly crystalline PHBV with a ductile P3HB4HB is shown to produce block copolymers with markedly enhanced extensibility and toughness, outperforming equivalent blends. The results demonstrate that polymer architecture, not composition alone, governs mechanical response, offering a route to biodegradable materials that combine ...
Katrin Blandine Kockler, Paul Lant, Steven Pratt, Bronwyn Laycock   +3 more
wiley   +1 more source

Low-tmperature Heat Capacities and Standard Molar Enthalpy of Formation of 4-Nitrobenzyl Alcohol

, 2009
Low-temperature heat capacities of 4-nitrobenzyl alcohol (4-NBA) have been measured by a high precision automated adiabatic calorimeter over the temperature range from 78 to 396 K.
Shi Quan, Meng Qingfen, Wang Xiaohuan, 谭志诚, Tan Zhicheng, Dong Yaping, Li Wu   +6 more
core  

Photochromic Donor–Acceptor Naphthalenediimides Enabling Near‐Infrared Photothermal Conversion for Seawater Desalination

Chemistry – A European Journal, EarlyView.
Photoinduced radical formation in donor–acceptor NDI molecules generates strong near‐infrared absorption, enabling efficient photothermal conversion and solar‐driven seawater desalination. ABSTRACT Photochromic donor–acceptor molecules that produce near‐infrared (NIR) absorption upon light activation offer promising platforms for organic photothermal ...
Sotaro Kusumoto, Soushi Kurihara, Masaya Shimabukuro, Naoki Ogiwara, Nobutsugu Hamamoto, Jack Harrowfield, Yang Kim, Yoshihiro Koide   +7 more
wiley   +1 more source

Electrochemical Fluorination of Partially Fluorinated Dialkylethers. Synthesis of Sevoflurane Derivatives (CF3)2CHOCHF2, (CF3)2CHOCF3, and (CF3)2CFOCF3

Chemistry – A European Journal, EarlyView.
Electrochemical fluorination (ECF, Simons process) is a valuable method for the fluorination of partially fluorinated dialkyl ethers, providing an inexpensive, scalable, and safe access to partially fluorinated ethers with a higher fluorine content and the perfluorinated analogues that are hardly accessible using other fluorination techniques ...
Tanja Knuplez, Leon N. Schneider, Erik R. Csapo, Peer Kirsch, Nikolai V. Ignat'ev, Maik Finze   +5 more
wiley   +1 more source

Encapsulation of Linear and Cyclic Alkanes in Water Within a Dimeric Deep‐Cavity Sulfonatocalix[4]arene Capsule

Chemistry – A European Journal, EarlyView.
Captured in water. A tetrasulfonated deep‐cavity calix[4]arene encapsulates linear and cyclic alkanes, as well as benzene and hexafluorobenzene, in water by forming a self‐assembled dimeric capsule. The binding affinity is guest size‐dependent. For linear alkanes, the affinity peaks at n‐hexane, while cyclooctane is the most strongly bound cycloalkane.
Nico Schneider, Sebastiano Casalino, Aldrik H. Velders, Rosa M. Gomila, Antonio Frontera, Stefan Kubik   +5 more
wiley   +1 more source

Development of a Mechanically Regenerating Desublimator for Freeze‐Drying Systems in the Food Industry

Chemie Ingenieur Technik, EarlyView.
Thermal defrosting limits desublimator efficiency in freeze‐drying. This review and case study compares thermal versus mechanical regeneration, links frost properties and external heat transfer to energy demand, and summarizes pilot‐scale scraping results enabling single‐unit, continuous lyophilization.
Moritz Krummenacher, Mirko Kleingries, Edgar Zimmer, Roman Blättler   +3 more
wiley   +1 more source

AutoVap: An Interactive Machine Learning Tool for Predicting the Standard Enthalpy of Vaporization

Chemie Ingenieur Technik, EarlyView.
AutoVap (https://autovap.jfcaetano.com) is a web app that predicts ΔvapHm° from SMILES using an RDKit‐based ML model, giving accurate, interpretable results with uncertainty across diverse molecules. ABSTRACT This communication introduces AutoVap (https://autovap.jfcaetano.com), an interactive web application for predicting the standard molar enthalpy ...
José Ferraz‐Caetano
wiley   +1 more source

Impact of Trace Water on the Macroscopic Activity of Commercial Ammonia Cracking Catalysts Under Process‐Relevant Conditions

Chemie Ingenieur Technik, EarlyView.
This study evaluates how small water impurities—typical in ammonia cracking feedstock—affect catalyst performance at elevated pressures and temperatures. By decoupling permanent degradation from reversible inhibition, the findings highlight trace water as a significant factor for reliable catalyst screening and industrial ammonia cracking scale‐up ...
Bruno V. P. Lago, Sebastian Wodak, Marianne Ponceau, Axel Behrens, Jan‐Peter Bohn, Sebastian Rehfeldt, Harald Klein   +6 more
wiley   +1 more source