Results 31 to 40 of about 5,522 (170)
Advanced Functional Materials, EarlyView.The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini +9 more
wiley +1 more source
Membranes, 2012 Low cost, durable, and selective membranes with high ionic conductivity are a priority need for wide-spread adoption of polymer electrolyte membrane fuel cells (PEMFCs) and direct methanol fuel cells (DMFCs).
Dimitrios C. Papageorgopoulos +10 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou +8 more
wiley +1 more source
Initial conditioning of Polymer Eelectrolyte Membrane fuel cell by temperature and potential cycling
Acta Chimica Slovenica, 2014 Polymer electrolyte membrane fuel cells need initial conditioning, activation or break-in the first time they are operated after being assembled. During this period performance of the fuel cell improves until it reaches its nominal performance. The exact
Dario Bezmalinović +2 more
doaj +1 more source
Membranes, 2021 Increasing world energy demand and the rapid depletion of fossil fuels has initiated explorations for sustainable and green energy sources. High-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs) are viewed as promising materials in fuel ...
Leong Kok Seng +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb +3 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng +8 more
wiley +1 more source
Temperature Control for a 5 kW Water-Cooled PEM Fuel Cell System for a Household Application
IEEE Access, 2019 Temperature control is indispensable for polymer electrolyte membrane fuel cell (PEMFC) systems to ensure its safety and efficiency when working continuously.
Wen-Jiang Zou, Young-Bae Kim
doaj +1 more source
Modelling and Simulation of a Hydrogen-Based Hybrid Energy Storage System with a Switching Algorithm
World Electric Vehicle Journal, 2022 Currently, transitioning from fossil fuels to renewable sources of energy is needed, considering the impact of climate change on the globe. From this point of view, there is a need for development in several stages such as storage, transmission, and ...
Vishal Ram +2 more
doaj +1 more source
Membranes, 2022 The further development of high temperature polymer electrolyte membrane (HT-PEM) fuel cells largely depends on the improvement of all components of the membrane–electrode assembly (MEA), especially membranes and electrodes.
Igor I. Ponomarev +5 more
doaj +1 more source