Results 91 to 100 of about 1,798 (232)

Vibrational Exfoliation of 2D Materials

Small, EarlyView.
Vibrational energy folds, fractures and exfoliates atomically and molecularly thin materials. Combining experimentation and computational methods, this unique vibrational synthesis pathway is revealed. This process overcomes barriers of existing approaches by processing 1000 g/L dispersions without loss in yield.
Aadam Rabani, Faysal A. Khaleel, Fahad S. Al‐Gburi, Irwing Ramirez, Tomislav Friščić, Jason Stafford   +5 more
wiley   +1 more source

Simulation and analysis of pressure swing adsorption: Ethanol drying process by the electrical analogue

, 2003
One column pressure swing adsorption (PSA) for dehydration of mixture of ethanol 93.54% and water 6.46% (wt) was simulated numerically by the electrical analogue model at feed pressure 2.0-5.0 bar, operating temperature 120-150 °C, and vacuum desorption.
Guan, Jianyu, Hu, Xijun
core   +1 more source

Size Scaling of the Electrochemical Performance of Ti3C2Tx MXene Microelectrode Arrays for Electrophysiological Recording and Stimulation

Small, EarlyView.
This study evaluates Ti3C2Tx MXene‐based microelectrodes across a range of diameters (25–500 µm) and elucidates their recording and stimulation capabilities for bioelectronic applications. Several electrochemical measurements—supported further by equivalent‐circuit modeling—revealed enhanced recording and stimulation capabilities of the MXene ...
Spencer R. Averbeck, Raghav Garg, Royce Dong, Daryl Hurwitz, Nicholas V. Apollo, Michael S. Beauchamp, Flavia Vitale   +6 more
wiley   +1 more source

Effect of Vacuum Process on Enrichment of Low-Concentration Coal Mine Methane by Adsorption

Separations
The massive emission of low-concentration coal mine methane (CMM) has resulted in the ineffective utilization of a large amount of energy methane and caused environmental pollution.
Yuanyuan Kang, Yingshu Liu, Wenhai Liu, Ye Li, Ningqi Sun, Quanli Zhang, Ziyi Li, Xiong Yang   +7 more
doaj   +1 more source

Rounded Monodisperse Fluorescent Nanodiamonds

Small, EarlyView.
Nanodiamond (ND) shape control using rapid molten‐nitrate etching is studied as a scale‐up method for monodispersed rounded particles. Optimal etching condition (567°C for 6 min) yields NDs with atomically stepped surfaces and reduced sp2 content. Compared to angular control, rounded NDs exhibit an increased proportion of luminescent particles (66% vs.
Helena Raabova, Ivan Rehor, Jan Havlik, Stuart Turner, Jan Stursa, Vladimira Petrakova, Michal Gulka, Petr Cigler   +7 more
wiley   +1 more source

Comparison of CuCl/NaY and CuCl/AC Process Performance Using a Vacuum Pressure Swing Adsorption Simulation

Separations
A five-bed, seven-step vacuum pressure swing adsorption (VPSA) system was computationally modeled to assess carbon monoxide (CO) separation from CO/N2 mixed gas (30/70, v/v). Two adsorbents with distinct isotherm characteristics (steep-slope CuCl/NaY and
Congli Li, Xuling Guo, Lei Tang, Jiahui Yang, Qi Shi   +4 more
doaj   +1 more source

Crystal Engineering of Chelating Hybrid Ultramicroporous Materials via Pillar Modulation for Energy‐Efficient Acetylene Separation

Small, EarlyView.
A new chelating hybrid ultramicroporous material platform is developed using anion modulation to fine‐tune pore chemistry and binding environments, enabling selective C2H2 capture over CO2. One of them, NbOFFIVE‐enmepy‐Zn, exhibits multiple binding interactions for C2H2 vs.
Asif Raza, Julia Korenko, Sousa Javan Nikkhah, Sayan Maiti, Debobroto Sensharma, Lilia Croitor, Kui Tan, Matthias Vandichel, Michael J. Zaworotko, Soumya Mukherjee   +9 more
wiley   +1 more source

Biogas Cleaning via Vacuum Swing Adsorption Using a Calcium Metal–Organic Framework Adsorbent: A Multiscale Simulation Study

ChemEngineering
Purifying biogas can enhance the performance of distributed smart grid systems while potentially yielding clean feedstock for downstream usage such as steam reforming.
Madison Lasich, Victoria T. Adeleke, Kaniki Tumba   +2 more
doaj   +1 more source

Modeling and Optimization of a Two-Stage MOF-Based Pressure/Vacuum Swing Adsorption Process Coupled with Material Selection

Chemical Engineering Transactions, 2014
In this paper, we address the optimal design of a pressure/vacuum swing adsorption (PSA/VSA) process for post-combustion CO2 capture. A mixed-integer partial differential equation constrained optimization model for a two-stage PSA/VSA cycle is developed ...
K. Leperi, H. Gao, R.Q. Snurr, F. You
doaj   +1 more source

Nanomaterials‐Decorated Biomass‐Derived Carbon for Overall Water Splitting: Interfacial Engineering, Mechanistic Insights, and Device Translation

The Chemical Record, EarlyView.
Biomass‐derived carbon provides a sustainable, porous, and conductive scaffold that stabilizes nanomaterials for bifunctional hydrogen evolution reaction/oxygen evolution reaction catalysis. This review summarizes design strategies (defects, heteroatom doping, heterostructures, single atoms), mechanistic/density functional theory insights, degradation ...
Paricha Jebin, Md. Rakib Khan, Syed Shaheen Shah, S. M Mostafa Kamal, Mst. Kaniz Subarna, Nipa Debnath, Md. Abdul Aziz, Bong‐Joong Kim, A. J. Saleh Ahammad   +8 more
wiley   +1 more source