Results 161 to 170 of about 706 (213)

Electrocatalytic Urea Waste Valorization via Water Electrolysis: Transition‐Metal Phosphides for Sustainable Hydrogen Production

Advanced Energy Materials, EarlyView.
This article provides a comprehensive analysis of transition metal phosphides (TMP) as electrocatalysts for urea‐assisted water electrolysis, highlighting the critical role of phosphorus engineering in modulating electronic structure, optimizing active sites, and enhancing catalytic durability.
Shivalingayya Gaddimath, Varsha Kashanner, Soumya Kulkarni, Vishal Sorathiya, Anitha Bamani, Rajveer Singh Rajaura, Mahaveer Kurkuri, Shambhulinga Aralekallu, Yogendra Kumar Mishra   +8 more
wiley   +1 more source

Atomically Dispersed Mo–S Sites Boost NiFe–Layered Double Hydroxide for Industrial‐Level Seawater Electrolysis

Advanced Energy Materials, EarlyView.
(Mo–S)1@NiFe–LDH promotes the rapid structural transition to the active oxyhydroxide phase, enabling selective seawater oxidation at industrial‐level current densities. Atomically dispersed Mo–S sites within the LDH lattice efficaciously modulate the structural flexibility to lower the thermodynamic barrier for early‐phase activation.
Jae Kwan Lee, Jaehyun Kim, Byeong‐Gwan Cho, In‐Hui Hwang, Woo Seok Cheon, Jiheon Lim, Kiryong Hong, Hong Gi Kim, Jong Hwan Lim, Sooheyong Lee, Jong Hun Kang, Min Sang Kwon, Ki Chang Kwon, Sun Hwa Park, Ho Won Jang   +14 more
wiley   +1 more source

Multiscale Design of Anion Exchange Membrane‐Based Seawater Electrolysis for Sustainable Hydrogen Production

Advanced Energy Materials, EarlyView.
Direct seawater electrolysis using anion exchange membranes is emerging as a promising route for sustainable hydrogen production. This review summarizes multiscale design strategies from seawater chemistry and OER–ClER selectivity to catalysts, membranes, MEAs, cells, stacks, and system integration, providing a roadmap toward selective, durable, and ...
Chiho Kim, Geunhee Yuk, Jong‐Hyeok Park, Shin‐woo Myeong, Jun Seok Ha, Won Tae Hong, Jung Kyu Kim, Sung Mook Choi   +7 more
wiley   +1 more source

Beyond the Gold Standard: Towards Industrially Viable Electrodes for Durable Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Transparent and opaque electrode materials are mapped by raw material cost per 1 m2 electrode area and retained median device efficiency after heat–light ageing. FTO offers a lower‐cost and more stable alternative to ITO, while Cr/Al provides the lowest‐cost rear electrode investigated with Au‐like stability and substantially improved durability ...
Tino Lukas, Manuel Kober‐Czerny, Ali Reza Nazari Pour, James McGettrick, Georgios Loukeris, Clemens Baretzky, Shuaifeng Hu, Junke Wang, Chia‐Yu Chang, Sam Teale, Bowei Li, Trystan M. Watson, Martin Stolterfoht, Robert L. Z. Hoye, Philippe Holzhey, Lukas Wagner, Markus Kohlstädt, Henry J. Snaith   +17 more
wiley   +1 more source

Design Principles of Electrocatalysts for Industrial‐Scale Water Electrolysis

Advanced Energy Materials, EarlyView.
This Review distills electrocatalyst design for industrial‐scale water electrolysis into integrated principles linking active‐site engineering, phase and lattice modulation, interfacial microenvironment regulation and mass‐transport control. By connecting catalyst families with HER/OER mechanisms and practical operating demands, it outlines pathways ...
Hong Tang, Cui Ce, John Wang
wiley   +1 more source

Reconstructed Bi‐Sn Interfacial Sites Coupled with a Supramolecular Cation Cage Enable Low K+ Acidic CO2 Electroreduction to Formate

Advanced Energy Materials, EarlyView.
Pyrochlore‐derived Bi–Sn interfaces enable selective CO2 electroreduction to HCOOH in strongly acidic media (pH = 1). Interfacial electronic coupling promotes *OCHO formation while suppressing hydrogen evolution. Cryptand‐driven cation regulation enriches interfacial K+, maintaining high HCOOH faradaic efficiency of 94% even at low K+ electrolyte ...
Abdelmoniem H. Abu‐Ghazala, Xin Huang, Hsiwen Wu, Paul A. Webley, Shixia Chen, Jun Wang, Jie Zhang   +6 more
wiley   +1 more source

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Direct selective leaching of chalcopyrite concentrate

Canadian Metallurgical Quarterly, 2014
AbstractThe ammonium persulphate (APS) leaching of chalcopyrite concentrate in the presence of ammonium carbonate was studied. The effects of ammonium carbonate concentration, APS concentration, leaching time, leaching temperature, solid/liquid ratio and stirring speed were investigated.
Mehmet Deniz Turan
exaly   +2 more sources

High-efficiency leaching process for selective leaching of lithium from spent lithium iron phosphate

Waste Management
With the arrival of the scrapping wave of lithium iron phosphate (LiFePO4) batteries, a green and effective solution for recycling these waste batteries is urgently required. Reasonable recycling of spent LiFePO4 (SLFP) batteries is critical for resource recovery and environmental preservation.
Mingkun Wu, Guidong Li
exaly   +3 more sources

Optimal Cluster Head Selection in the LEACH Architecture

2007 IEEE International Performance, Computing, and Communications Conference, 2007
LEACH (low energy adaptive clustering hierarchy) (W. Heinzelman et al., 2000) is one of the popular cluster-based structures, which has been widely proposed in wireless sensor networks. LEACH uses a TDMA based MAC protocol, and in order to maintain a balanced energy consumption, suggests that each node probabilistically become a cluster head. To reduce
Haiming Yang, Biplab Sikdar 0001
openaire   +1 more source

Pore Development during Selective Leaching

Journal of The Electrochemical Society, 1984
Fabrication du cuivre Raneg, important catalyseur industriel par lixiviation d'un alliage Cu 50% en poids Al, aboutissant a un cuivre tres poreux. A temperature constante, l'espacement des pores croit si la vitesse de lixiviation diminue. La conversion du CuAl 2 dans l'alliage de depart en Cu poreux est consideree comme une transformation de ...
A. D. Tomsett, D. J. Young, M. S. Wainwright   +2 more
openaire   +1 more source