Results 141 to 150 of about 166,202,154 (262)

Lithium Metal Anode Fabrication: Methods, Challenges, and Strategies

open access: yesEcoEnergy, EarlyView.
Schematic illustration of four representative fabrication techniques for thin lithium metal anodes: extrusion, molten lithium infusion, electroplating, and physical vapor deposition (PVD). ABSTRACT The pursuit of ultra‐high energy‐dense lithium‐metal batteries (LMBs) has reignited the drive to fabricate ultrathin high‐quality lithium metal anodes. This
Ji Hyun Baek, Mi Ji Kang, Ho Won Jang
wiley   +1 more source

Out-of-pocket expenses borne by the users of obstetric services at government hospitals in Karachi, Pakistan [PDF]

open access: yes, 2000
Objective: Financing health services is a challenge for health policy makers world over, especially in developing countries. Alternate mechanisms such as user fees are being proposed.
Sadruddin, S   +3 more
core  

Impact of out-of-pocket expenses for surgical care on households in rural Haiti: a mixed-methods study. [PDF]

open access: yesBMJ Open, 2022
Padovany MM   +7 more
europepmc   +1 more source

A Self‐Enhanced Tandem Catalytic System for Olefin‐to‐Diol Conversion Powered by Single‐Atom Fe Catalysts With In Situ Generated Acid

open access: yesEcoEnergy, EarlyView.
A single‐atom iron catalyst with well‐defined Fe–N4 sites enables a tandem epoxidation‐hydrolysis process for converting terminal olefins to 1,2‐diols. The in situ‐generated isobutyric acid drives the hydrolysis step, affording broad substrate scope and excellent recyclability.
Tao‐Tao Liu   +7 more
wiley   +1 more source

Cobalt‐Free Single‐Crystal Cathodes for Next‐Generation Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cobalt‐free single‐crystal cathodes enhance lithium‐ion battery stability by mitigating fracture, degradation, and phase transitions. This review highlights Ni‐rich layered, Li‐Mn‐rich, spinel, and olivine frameworks, synthesis strategies enabling morphology and defect control, and structural tuning via doping and coatings, offering pathways toward ...
Srinivasan Alagar   +5 more
wiley   +1 more source

Developing a Suitable Anion Exchange Layer Structure for Pure–Water Fed Bipolar Membrane CO2 Electrolysis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A porous anion exchange layer (AEL) is implemented in a forward‐biased bipolar membrane CO2 electrolyzer to suppress carbonate crossover, support CO2 regeneration and maintain cathode alkalinity. Two fabrication strategies are compared—deposition on a silver gas diffusion electrode (GDE) or on the CEM—showing that a porous AEL‐coated GDE provides the ...
Henning Lorenz   +3 more
wiley   +1 more source

Out-of-pocket cost of managing sick newborns in Enugu, southeast Nigeria

open access: yes, 2014
Uchenna Ekwochi,1 D Chidiebere Osuorah,3 Ikenna K Ndu,1 Osita U Ezenwosu,2 Ogechukwu F Amadi,1 Ikenna C Nwokoye,1 O Israel Odetunde2 1Department of Pediatrics, Enugu State University Teaching Hospital, Parklane, Nigeria; 2Department of Pediatrics ...
Osuorah DC   +6 more
core  

Anode/Electrolyte Interfacial Engineering Toward Sustainable and Practical Solid‐State Metal‐Sulfur Batteries: A Prospective Review

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Coordinated engineering of the anode, electrolyte, and interface underpins the rational design of next‐generation solid‐state metal‐sulfur batteries. Solid‐state metal‐sulfur batteries are emerging as a transformative energy storage platform with the potential to overcome the fundamental limitations of conventional flooded cells, particularly ...
Ziyu Feng   +4 more
wiley   +1 more source

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