Results 41 to 50 of about 17,344 (346)

Decoding the N-doping mechanism for enhanced CO2 adsorption on biochar

Carbon Capture Science & Technology
The growing demand for efficient carbon capture technologies has led to the exploration of biochar as a promising material for CO2 adsorption, particularly through modifications such as nitrogen doping to enhance its performance.
Shuo Xiang, Jun-Long Li, Tie Wu, Lian-Peng Li, Mian Hu, Jun Zhao, Zhong-Ting Hu, Zhiyan Pan   +7 more
doaj   +1 more source

Process Synthesis of an S-CO₂Brayton Cycle Operating at an Ultra-Supercritical Steam Cycle Level

Chemical Engineering Transactions, 2019
Supercritical CO2 (S-CO2) Brayton cycle perceives the advantages of high cycle efficiency and compact turbine machinery. In certain temperature ranges, its cycle efficiency can be higher than that of a steam Rankine cycle.
Senjing Qin, Pei Liu
doaj   +1 more source

Caffeine Solubility In Supercritical Carbon Dioxide/co-solvent Mixtures [PDF]

, 2015
In order to assess the effect of co-solvents on the solubility of caffeine in supercritical carbon dioxide, experimental solubility of caffeine in supercritical ethanol-carbon dioxide and isopropanol-carbon dioxide mixed solvents was obtained using a ...
Kopcak U., Mohamed R.S.
core   +1 more source

A novel spiral infinity reactor for continuous hydrothermal synthesis of nanoparticles

Scientific Reports, 2022
Hydrothermal synthesis is an attractive route to make nanoparticles utilizing inexpensive precursors under moderate process conditions. Though it provides flexibility and robustness in controlling particle characteristics, process scale-up for continuous
Arjun Kumar Pukkella, Naga Ravikumar Varma Nadimpalli, Venkataramana Runkana, Sivakumar Subramanian   +3 more
doaj   +1 more source

Valence-tuned electron bridge enables high-yield multi-electron HMF oxidation over spinel catalysts

Nature Communications
The catalytic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid is a key step in the production of bio-based plastics but remains limited by sluggish multi-electron transfer kinetics across multiple reaction intermediates. In this study,
Zhong-Ting Hu, Gan He, Xiaohuan Tao, Jinshu Tian, Mingwu Tan, Ni Ouyang, Jun-Long Li, Mian Hu, Jie-Xin Wang, Yihan Zhu, Dapeng Cao, Zhiyan Pan, Yong Wang, Xiaonian Li   +13 more
doaj   +1 more source

COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption

Advanced Materials, EarlyView.
A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas, Lucía Torrico‐García‐Viso, Jose Antonio Suárez del Pino, Nekane Aramburu‐Merino, Pilar Segovia, Enrique G. Michel, Josep Puigmartí‐Luis, Enrique Velasco, Pedro Tarazona, Daniel Maspoch, David Rodríguez‐San‐Miguel, Félix Zamora   +11 more
wiley   +1 more source

Supercritical diethylether: A novel solvent for the synthesis of aryl-3,4,5,6,7,9-hexahydroxanthene-1,8-diones [PDF]

, 2017
An efficient and simple method for the preparation of -aryl-3,4,5,6,7,9-hexahydroxanthene-1,8-diones from 1,3-cyclohexadione and several aldehydes in the presence of supercritical diethylether has been developed. The present method has several advantages
Ulusal H., Giray E.S., Findikkiran G., Akbaşlar D., Demirkol O.   +4 more
core   +1 more source

Underexplored Catalysts as General Structures: Application of Machine Learning Techniques for Reaction‐Specific Datasets

Angewandte Chemie, EarlyView.
Bias‐aware machine learning identified an underexplored imidazolidinone catalyst with broad competitive performance in iminium‐based reactions. Experimental benchmarking shows how data‐driven prioritization can uncover overlooked catalyst scaffolds from sparse and historically biased literature data.
Jiajing Li, Isaiah O. Betinol, Junshan Lai, Soresu Juyo, Jolene P. Reid   +4 more
wiley   +2 more sources

Oxidation of metallic Cu by supercritical CO2 and control synthesis of amorphous nano-metal catalysts for CO2 electroreduction

Nature Communications, 2023
Amorphous metal catalysts often exhibit appealing catalytic properties, however, accurate control synthesis of amorphous nano-metal catalysts is a challenge.
Chunjun Chen, Xupeng Yan, Yahui Wu, Xiudong Zhang, Shoujie Liu, Fanyu Zhang, Xiaofu Sun, Qinggong Zhu, Lirong Zheng, Jing Zhang, Xueqing Xing, Zhonghua Wu, Buxing Han   +12 more
doaj   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

Advanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela, Sergio Triviño‐Sánchez, Andrés Guerrero‐Martínez, Luis M. Liz‐Marzán, Guillermo González‐Rubio   +4 more
wiley   +1 more source