Results 61 to 70 of about 2,021,692 (349)

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

Dynamic modeling, simulation and optimization of the partially-autothermal reforming of biogas in coated monolith channels

Chemical Engineering Journal Advances, 2023
A dynamic model is proposed describing a catalyst-coated SiSiC monolithic structure taking as a case study the autothermal reforming of biogas (SCR=3; OCR=0.66) in an adiabatic mode of operation.
Grigorios Pantoleontos, Nickolas D. Vlachos, Souzana Lorentzou, George Karagiannakis, Nikolaos I. Tsongidis, Maria Syrigou, Sandro Gianella, Luca Ferrari, Alberto Ortona, Marco Pelanconi   +9 more
doaj   +1 more source

Production of hydrogen by unmixed steam reforming of methane [PDF]

, 2008
Unmixed steam reforming is an alternative method of catalytic steam reforming that uses separate air and fuel–steam feeds, producing a reformate high in H2 content using a single reactor and a variety of fuels. It claims insensitivity to carbon formation
Dupont, V., Hanley, I., Knight, E., Ross, A.B., Twigg, M.V.   +4 more
core   +1 more source

Graphene Nanosheet‐Based Mixed Proton‐Electron Conducting Membranes for Efficient Hydrogen Purification

Advanced Functional Materials, EarlyView.
A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He, Fanmengjing Wang, Dehua Dong, Yuan Kang, Zhikao Li, Jacek J. Jasieniak, Paul A. Webley, Douglas R. MacFarlane, Huanting Wang   +8 more
wiley   +1 more source

Catalytic Activity of Oxidation Pretreated Hastelloy for Methanol Steam Reforming

Chemical Engineering Transactions, 2017
Hastelloy, a Ni containing alloy, was investigated to improve its catalytic activity on bio-oil steam reforming by oxidation pretreatment. Methanol as the major composition of bio-oil was used as a model compound.
T. Jiwanuruk, H. Yamada, T. Tagawa, S. Putivisutisak, S. Assabumrungrat   +4 more
doaj   +1 more source

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

Synthesis of cobalt nanoparticles by electrodeposition onto aluminium foils [PDF]

, 2015
In this contribution a study of electrochemical deposition of cobalt nanoparticles onto aluminium foils is presented. The study is aimed at deriving information required for design and control of cobalt nanoparticles electrodeposition onto aluminium ...
ALTIMARI, PIETRO, MOSCARDINI, Emanuela, PAGNANELLI, Francesca, SCHIAVI, PIER GIORGIO, TORO, Luigi   +4 more
core   +1 more source

Activating a Metallization Switch for Record Hydrogen Evolution in Single‐Atom Modified Polar MOF Piezocatalysts

Advanced Materials, EarlyView.
ABSTRACT Piezocatalytic hydrogen evolution enables the conversion of mechanical energy into chemical fuels, but its efficiency is constrained by a trade‐off between piezoelectric polarization and electronic conductivity. Strong piezoelectric polarization is essential for sufficient driving force, yet highly polar materials typically suffer from poor ...
Chongyan Hao, Xinwei Guan, Yang Wu, Lingfeng Zhu, Yiwen Mai, Thomas Frauenheim, Zhenping Fu, Yalin Lu, Shidong Wang, Hanxing Liu, Hua Hao, Shujun Zhang, Zhenxiang Cheng, Xiaoning Li   +13 more
wiley   +1 more source

Catalytic Steam Reforming of Toluene as a Model Compound of Biomass Gasification Tar Using Ni-CeO2/SBA-15 Catalysts

Energies, 2013
Nickel supported on SBA-15 doped with CeO2 catalysts (Ni-CeO2/SBA-15) was prepared, and used for steam reforming of toluene which was selected as a model compound of biomass gasification tar.
Erik Dahlquist, Xiaoze Du, Qiang Lu, Changqing Dong, Jun Tao, Leiqiang Zhao   +5 more
doaj   +1 more source