Nimer Wehbe

Clarification on the Influence of Reducing Agents on the Extraction Mechanism of Metals from NMC111

Chiara Canciani, Madhumitha Dhanasekaran, Shekhar R. Kulkarni, Nimer Wehbe et autres

Abstract The urgent requirement for battery materials to satisfy their rising demand due to electrification is straining limited mineral resources. Thus, recycling is becoming increasingly more important to reduce reliance on mining and delocalize the supply chain of critical battery metals. In …

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Enhanced Optical Efficiency and Carrier Dynamics in InGaN/GaN Light-Emitting-Diode Structures through Combination of Superlattice- and Prewell-Strain Control Strategy

Fatimah Alreshidi, Lih-Ren Chen, Hadeel Alamoudi, Dhaifallah R. Almalawi et autres

We explore the effect of combining two distinct strain-engineering multilayer regions (designated as L1 and L2) on the structural quality, carrier dynamics, and device optical efficiency of InGaN/GaN multiple quantum well (MQW)-based light-emitting diode (LED) structures. In S1, L2 consists of a …

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The Roles of Surface Reconstruction and Framework Stability in Acetic Acid Leaching of Lithium-Ion Battery Cathodes

Elia Colleoni, Juan Restrepo Cano, Nimer Wehbe, Chiara Canciani et autres

Hydrometallurgical recycling is a promising route for recovering critical materials from lithium-ion batteries, but the mechanisms governing organic-acid leaching remain poorly resolved across cathode chemistries. Here, we establish a comparative mechanistic framework for acetic-acid leaching of three representative cathodes: LCO, NMC111, and …

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PdNeuRAM: forming-free, multi-bit Pd/HfO2 ReRAM for energy-efficient neuromorphic computing

Erbing Hua, Theofilos Spyrou, Majid Ahmadi, Abdul Momin Syed et autres

Memristor technology offers a promising route toward energy-efficient computing but faces challenges including resistance drift, variability, and the need for electroforming. Filamentary resistive random-access memory, one of the most studied memristive platforms, typically requires a high-voltage electroforming step to initiate conductive filaments, …

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Vapor phase-infiltrated carbon molecular sieve ultra-thin films and thin-film composite membranes: Impact of sequential infiltration on methanol vapor and gas transport characteristics

Wojciech Ogieglo, Tiara Puspasari, Nabeel Aslam, Nimer Wehbe et autres

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Enhanced detectivity self-powered (photovoltaic) solar-blind UV-C Sn-doped β-Ga2O3-based photodetectors via Sn+-implantation with outstanding dark current suppression

Kishor Upadhyaya, Vijay Kumar Gudelli, Fatimah Alreshidi, Duarte Magalhães Esteves et autres

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Vapor Phase-Infiltrated Carbon Molecular Sieve Ultra-Thin Films and Thin-Film Composite Membranes: Impact of Sequential Infiltration on Methanol Vapor and Gas Transport Characteristics

Wojciech Ogieglo, Tiara Puspasari, Nabeel Aslam, Nimer Wehbe et autres

Impact of process temperature and reactant pressure on the vapor phase infiltration in polyimide-based thin-film composite carbon molecular sieve membranes for gas separation

Wojciech Ogieglo, Nabeel Aslam, Tiara Puspasari, Menouer Saidani et autres

The Roles of Surface Reconstruction and Framework Stability in Acetic Acid Leaching of Lithium-Ion Battery Cathodes

Elia Colleoni, Juan Restrepo Cano, Nimer Wehbe, Chiara Canciani et autres

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Nanoscale engineering of ultramicropores in carbon molecular sieve membranes via vapor phase infiltration of an organic-inorganic nanohybrid surface layer

Wojciech Ogieglo, Nabeel Aslam, Tiara Puspasari, Menouer Saidani et autres

Visualizing and Modulating the Surface Carrier Dynamics of Tellurium–Selenium Nanocomposites

Razan Nughays, Chenyang Xing, Geetanjali Deokar, Nimer Wehbe et autres

A comprehensive investigation of surface carrier dynamics is indispensable for advancing high-performance optoelectronic and energy-conversion devices, where interfaces critically govern the efficiency, stability, and robustness. In this work, we present an integrated study of tellurium–selenium (Te–Se) nanocomposites using X-ray photoelectron spectroscopy (XPS), …

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Development of High Performance Pyrolized Polyimide‐based Carbon Molecular Sieves for Enhanced Selectivity of Propylene/Propane Gas Separation

Tiara Puspasari, Yingge Wang, Bader S. Ghanem, Xiaofan Hu et autres

Abstract The replacement or de‐bottlenecking of the highly energy‐intensive distillation unit operation process for propylene/propane separation has long posed a formidable challenge. Although membrane technology can potentially offer a more energy‐efficient alternative, existing materials lack the requisite mixed‐gas selectivity for industrial use. …

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