Results 171 to 180 of about 102,014 (306)

Solvent‐Driven Pore Engineering in Coffee‐Derived Activated Hydrochar: Implications for Post‐Combustion CO2 Capture

open access: yesCarbon Energy, EarlyView.
Solvent washing of coffee‐ground hydrochars produces activated carbons with tunable pore sizes while maintaining surface area. Removing non‐polar contaminants enhances microporosity, increasing CO2 uptake by 40%. Moderate pore sizes (9–12 Å) yield optimal CO2:N2 selectivity, whereas smaller pores reduce selectivity due to stronger interactions between ...
Muhammad Irfan Maulana Kusdhany   +4 more
wiley   +1 more source

Carbon‐14 Perovskite Betavoltaics Reach Record 10.79% Efficiency

open access: yesCarbon Energy, EarlyView.
A perovskite‐based betavoltaic cell incorporating carbon‐14 nanoparticles and formamidinium lead iodide achieves a record energy conversion efficiency of 10.79%. The device design enhances charge generation through an electron avalanche multiplication mechanism.
Hong Soo Kim   +6 more
wiley   +1 more source

Utilization of Waste Materials Using the Müller–Kühne Process—A Life Cycle Inventory Study

open access: yesChemie Ingenieur Technik, EarlyView.
This study presents a Life Cycle Inventory of the Müller–Kühne process (MKP), which converts gypsum waste into sulfuric acid and cement clinker. The MKP outperforms conventional cement production regarding material yield, though its specific energy demand is higher. Consequently, potentials for circular gypsum waste utilization are discussed.
Leon Kassner   +4 more
wiley   +1 more source

Pursuit of Optimal Vagal Maneuvers in Stable Supraventricular Tachycardia: A Network Meta-Analysis. [PDF]

open access: yesWest J Emerg Med
Immanuel SS   +8 more
europepmc   +1 more source

Introduction of a Data‐Based Preliminary Compressor Design for Mechanical Vapor Compression

open access: yesChemie Ingenieur Technik, EarlyView.
This work proposes a data‐driven methodology for the design of compressors for mechanical vapor compression, with the objective of electrification of chemical processes utilizing renewable energy sources. This approach enables the determination of suitable compressor architectures and their performance parameters within the framework of a potential ...
Lars Hinz   +4 more
wiley   +1 more source

A Short‐Cut Design Approach to Evaluate Reboiler Designs in Vapor Recompression Scenarios

open access: yesChemie Ingenieur Technik, EarlyView.
A short‐cut model framework that incorporates mechanical vapor recompression (MVR) requirements into reboiler design is presented, which is particularly beneficial during early process development with limited data or initial feasibility assessments.
Franziska Lais   +2 more
wiley   +1 more source

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