Results 41 to 50 of about 14,450 (255)

Tuning Redox Dynamics in Cu‐Based Electrocatalysts: Effect of Secondary Metals

Advanced Functional Materials, EarlyView.
Advanced analysis of operando X‐ray absorption spectroscopy data reveals that secondary metals affect the redox processes in Cu‐based catalysts for electrocatalytic CO2 reduction. This influences the amount of oxides formed under pulsed reaction conditions and the distribution of reaction products.
Martina Rüscher, Andrea Martini, Eduardo Ortega, Lichen Bai, Eric Liberra, Daniel Escalera‐López, Hyo Sang Jeon, Antonia Herzog, Clara Rettenmaier, Dorottya Hursán, David Koshy, Mariana Cecilio de Oliveira Monteiro, Timon Wagner, Leon Jacobse, Felix Haase, Arno Bergmann, Janis Timoshenko, Beatriz Roldan Cuenya   +17 more
wiley   +1 more source

Design and Implementation of an Automatic Control for Two Axis Tracking System for Applications of Concentrated Solar Thermal Power

Al-Khawarizmi Engineering Journal, 2018
The present work presents design and implementation of an automated two-axis solar tracking system using local materials with minimum cost, light weight and reliable structure. The tracking system consists of two parts, mechanical units (fixed and moving
Saad Tami Hamidi, Jamal Abdul-Kareem Mohammed, Laith Muhsin Reda   +2 more
doaj   +1 more source

Giant Electrostriction in Halide Perovskites Revisited With Double‐Modulation Interferometry

Advanced Functional Materials, EarlyView.
A giant electrostrictive effect in lead halide perovskites had been reported previously. This work uses sensitive interferometry to measure the electromechanical response of various halide perovskite samples. The results reveal no intrinsic electrostrictive compression. Instead, the materials expand primarily under an applied electric field as a result
Philipp Ramming, Markus Griesbach, Ralf Moos, Lothar Kador, Anna Köhler   +4 more
wiley   +1 more source

Dual axis Solar tracking PV system [PDF]

Politehnika, 2018
Photovoltaic cells are semiconductor diodes that consist of a pn-junction and convert Solar energy to electricity using the photovoltaic effect. There are several types of PV systems, such as fixed systems, single axis Solar tracking system and dual axis
Mateo Borčić, Igor Bonefačić
doaj  

A Review of Time-Based Solar Photovoltaic Tracking Systems

Information, 2023
Solar energy is the cleanest and most abundant form of energy that can be obtained from the Sun. Solar panels convert this energy to generate solar power, which can be used for various electrical purposes, particularly in rural areas. Maximum solar power
Abdulwaheed Musa, Emmanuel Alozie, Suleiman A. Suleiman, John Adedapo Ojo, Agbotiname Lucky Imoize   +4 more
doaj   +1 more source

Mechanistic Control of C─H Bond Activation and C─C Coupling in Light‐Driven Methane Conversion to C2+ Products over Multifunctional Photocatalysts

Advanced Functional Materials, EarlyView.
Methane photocatalytic activation under mild conditions remains a formidable challenge in the synthesis of solar fuels. In this review, we emphasize the growing importance of multifunctional materials and hybrid systems within a unified mechanistic framework that integrates selective C─H bond activation, formation and control of intermediates, C─C ...
Di Hu, Yuheng Jiang, Vitaly V. Ordomsky, Bastian Mei, Zhiyong Tang, Andrei Y. Khodakov   +5 more
wiley   +1 more source

Development Of An Automatic Sun Tracking System On Solar Panels As Electric Power Supplier At Smart Garden

Revue des Énergies Renouvelables
A solar panel is a device/tool that can convert energy from sunlight into electrical energy. This research aims to design a tool that can help solar panels move in the direction of the sun, determine the energy consumption used to run the tracking system
Wiwis Sasmitaninghidayah, Byar Cipta Pakartilinuwih, Imam Tazi, Ahmad Abtokhi, Mutmainnah Mutmainnah, Syahida Suhaimi   +5 more
doaj   +1 more source

Solar Tracking Systems – A Review

Journal of Mines, Metals and Fuels, 2023
The biggest challenge and concern for the upcoming 50 years is the idea of power generation, by making less use of the fossil fuels. The idea of solar energy as fuel, and the fact that we can convert freely available energy which we receive from the sun into usable energy, is fascinating, and is probably at the highest priority at the moment as ...
openaire   +1 more source

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

Advanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam, Wejdan Althobaiti, Safakath Karuthedath, Christopher E. Petoukhoff, Amr Dahman, Khawla Alkhezaim, Oleksandr Matiash, José P. Jurado, Mariia Ferree, Ning Su, Jacob Blaskovits, Denis Andrienko, Vladimir Dyakonov, Andreas Sperlich, Vojtech Nádaždy, Tobin J. Marks, Antonio Facchetti, Frédéric Laquai   +17 more
wiley   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source