Results 31 to 40 of about 1,219,282 (284)

An oriented-design simplified model for the efficiency of a flat plate solar air collector [PDF]

, 2010
In systems design, suitably adapted physical models are required. Different modelling approaches for a solar air collector were studied in this paper. First, a classical model was produced, based on a linearization of the conservation of energy equations.
LUNA, David, Jean-Pierre Nadeau, Yves Jannot, JANNOT, Yves, David Luna, NADEAU, Jean-Pierre   +5 more
core   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Photoelectrochemical water splitting cells at elevated pressure using BiVO4 and platinized III-V semiconductor photoelectrodes

Nature Communications
Direct production of pressurized green hydrogen via photoelectrochemical water splitting reduces the need for mechanical compression and mitigates bubble-related losses. However, existing demonstrations have been limited to atmospheric pressure. Here, we
Feng Liang, Heejung Kong, Diwakar Suresh Babu, Roel van de Krol, Fatwa F. Abdi   +4 more
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

Advanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli, Amina Lahrichi, Hoje Chun, Rafael Gómez‐Bombarelli, Bruno G. Pollet   +4 more
wiley   +1 more source

A high-performance watermelon skin ion-solvating membrane for electrochemical CO2 reduction

Nature Communications
Ion-solvating membranes have been gaining increasing attention as core components of electrochemical energy conversion and storage devices. However, the development of ion-solvating membranes with low ion resistance and high ion selectivity still poses ...
Qinglu Liu, Tang Tang, Ziyu Tian, Shiwen Ding, Linqin Wang, Dexin Chen, Zhiwei Wang, Wentao Zheng, Husileng Lee, Xingyu Lu, Xiaohe Miao, Lin Liu, Licheng Sun   +12 more
doaj   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

Black indium oxide a photothermal CO2 hydrogenation catalyst

Nature Communications, 2020
Nanostructured forms of stoichiometric In2O3 are proving to be efficacious catalysts for the gas-phase hydrogenation of CO2. These conversions can be facilitated using either heat or light; however, until now, the limited optical absorption intensity ...
Lu Wang, Yuchan Dong, Tingjiang Yan, Zhixin Hu, Feysal M. Ali, Débora Motta Meira, Paul N. Duchesne, Joel Yi Yang Loh, Chenyue Qiu, Emily E. Storey, Yangfan Xu, Wei Sun, Mireille Ghoussoub, Nazir P. Kherani, Amr S. Helmy, Geoffrey A. Ozin   +15 more
doaj   +1 more source

Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Assessing elevated pressure impact on photoelectrochemical water splitting via multiphysics modeling

Nature Communications
Photoelectrochemical (PEC) water splitting is a promising approach for sustainable hydrogen production. Previous studies have focused on devices operated at atmospheric pressure, although most applications require hydrogen delivered at elevated pressure.
Feng Liang, Roel van de Krol, Fatwa F. Abdi   +2 more
doaj   +1 more source

Toroidal CO₂ Plasma Sources with Low- and High-Frequency Power Coupling Configurations for Improved Energy Transfer Efficiencies

Plasma
Electrodeless Low-Frequency (LF)/Radio-Frequency (RF) plasma sources often suffer from low power coupling efficiencies due to the lack of overlapping field with the dynamic plasma load.
E. J. Devid, W. A. Bongers, P. W. C. Groen, M. van Ginkel, S. J. Doyle, F. M. A. Smits, C. F. A. M. van Deursen, K. Serras, S. Labeur, M. A. Gleeson, M. C. M. van de Sanden   +10 more
doaj   +1 more source