Results 81 to 90 of about 634,511 (275)

Ti-Doped, Mn-Based Polyanionic Compounds of Na₄Fe_1.2Mn_1.8(PO₄)₂P₂O₇ for Sodium-Ion Battery Cathode

Nanomaterials
Na4Fe3(PO4)2P2O7 (NFPP) is recognized as a prospective electrode for sodium-ion batteries (SIBs) because of its structure stability, economic viability and environmental friendliness.
Hualin Li, Gang Pang, Weilong Zhang, Qingan Zhang, Linrui Hou, Changzhou Yuan   +5 more
doaj   +1 more source

Nickel hydrogen capacity loss [PDF]

The results of tests to assess capacity loss in nickel hydrogen cells are presented in outline form. The effects of long storage (greater than 1 month), high hydrogen pressure storage, high cobalt content, and recovery actions are ...
Borthomieu, Y., Goualard, Jacques, Paugam, D.   +2 more
core   +1 more source

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Urea electrooxidation coupled with energy-saving H2 production using bimetallic sulfide heterojunctions

Electrochemistry Communications
The theoretical electrocatalytic potential for the urea oxidation reaction (UOR) is notably low at 0.37 V, positioning it as a promising alternative to hydrogen evolution reaction for traditional water electrolysis.
Suzhen Bai, Kesheng Cao, Yi Zeng, Zhengshan Tian, Xiangxiang Du, Xingqun Zheng   +5 more
doaj   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

One-step, binder-free and rapid synthesis of high-entropy oxide anode materials for the lithium-ion batteries

Next Materials
High-entropy oxides (HEOs) hold significant promise as next-generation lithium-ion battery anodes due to their entropy-driven structural stability and tunable electrochemical properties.
Yuxin Lin, Shimiao Chen, Yangzhou Ma, Shuai Wang, Ziyang Ma, Lu Sun, Rui Cao, Guangsheng Song, Zexin Yu, Jianhua Yao, Hanlin Liao   +10 more
doaj   +1 more source

Turbopump thermodynamic cooling [PDF]

, 1972
System for cooling turbopumps used in cryogenic fluid storage facilities is described. Technique uses thermodynamic propellant vent to intercept pump heat at desired conditions.
Mckee, H. B., Patten, T. C.
core   +1 more source

Producing High Concentrations of Hydrogen in Palladium via Electrochemical Insertion from Aqueous and Solid Electrolytes

, 2018
Metal hydrides are critical materials in numerous technologies including hydrogen storage, gas separation, and electrocatalysis. Here, using Pd-H as a model metal hydride, we perform electrochemical insertion studies of hydrogen via liquid and solid ...
Benck, Jesse D., Chiang, Yet-Ming, Jackson, Ariel, Rettenwander, Daniel, Young, David   +4 more
core   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

CO2 Adsorption on Biomass-Derived Carbons from Albizia procera Leaves: Effects of Synthesis Strategies

ACS Omega, 2023
Aamir Hanif, Md. Abdul Aziz, Aasif Helal, Mahmoud M. Abdelnaby, Abuzar Khan, Rajesh Theravalappil, Mohd Yusuf Khan   +6 more
doaj   +1 more source