3D Binder‐free Integrated Electrodes Prepared by Phase Separation and Laser Induction (PSLI) Method for Oxygen Electrocatalysis and Zinc–Air Battery
نویسندگان
چکیده
Developing facile approaches to fit in large-scale fabrication of efficient and durable catalytic electrodes is highly desirable for oxygen electrocatalysis metal–air batteries. Herein, a strategy based on phase separation laser induction proposed prepare 3D binder-free integrated (IEs). The between polybenzimidazole (PBI) solution coagulation bath containing metal precursors occurs form interconnected porous catalyst precursor layer. After drying, IEs are obtained by induction, which simultaneously converts PBI into hierarchically laser-induced graphene (HPLIG) reduces tiny nanoparticles. To demonstrate the versatility this method, with different HPLIG hybrid layers substrates fabricated. IE-NiFe/HPLIG IE-Co/HPLIG using carbon paper as substrate exhibit superior evolution reaction (OER) reduction (ORR) performance respectively. Flexible IE-NiCoFe/HPLIG OER ORR bifunctionality cloth applied an air cathode rechargeable aqueous Zinc–air batteries (ZABs) provides satisfactory power density 163 mW cm−2 cycling stability 1800 h at 10 mA cm−2. electrode also endows solid ZABs good flexibility. This work offers industrially viable challenge rapid IEs.
منابع مشابه
Preparation and characterization of polyethylene/ glass fiber composite membrane prepared via thermally induced phase separation method
Grinded glass fiber (GGF) embedded high density polyethylene (HDPE) membranes were prepared via thermally induced phase separation method. FESEM images showed that all the membranes had leafy structure, indicating a solid-liquid mechanism during phase separation. The results of EDX and TGA analyses confirmed that the fibers were dispersed in the HDPE matrix uniformly. Normalized water flux of t...
متن کاملdevelopment and implementation of an optimized control strategy for induction machine in an electric vehicle
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
15 صفحه اولComparative evaluation of microleakage in occlusal and cervical part of cavitites prepared by Er:YAG laser and conventional method
متن کامل
Comparison of the vanadyl-selective electrodes prepared by sol–gel and PVC membrane techniques
Sol-gel and polymeric membrane electrodes, based on thiacalix[4]arene as a neutral carrier, weresuccessfully developed for the detection of VO2+ in aqueous solutions. The sol-gel and PVCmembrane electrodes exhibited linear response with Nernstian slopes of 29.3 and 28.4 mV perdecade, respectively, within the vanadyl ion concentration ranges from 1.0 × 10-6 to 1.0 × 10-1mol dm-3 and from 1.0 × 1...
متن کاملElectrocatalysis of Lithium Polysulfides: Current Collectors as Electrodes in Li/S Battery Configuration
Lithium Sulfur (Li/S) chemistries are amongst the most promising next-generation battery technologies due to their high theoretical energy density. However, the detrimental effects of their intermediate byproducts, polysulfides (PS), have to be resolved to realize these theoretical performance limits. Confined approaches on using porous carbons to entrap PS have yielded limited success. In this...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advanced Energy Materials
سال: 2022
ISSN: ['1614-6832', '1614-6840']
DOI: https://doi.org/10.1002/aenm.202200906