Results 71 to 80 of about 283,852 (245)

Pulsed Oxidative–Reductive Electrolysis Over Dual Cu and Co Single‐Atom Sites for Urea Electrosynthesis

Advanced Materials, EarlyView.
Alternating oxidative–reductive pulses synchronize CO2‐derived *CO and NH3‐derived *NHx intermediates over dual Cu and Co single‐atom sites, enabling urea and ethyl urea formation with a total C─N Faradaic efficiency of 42 ± 4%. In situ spectroscopy and theoretical calculations elucidate complementary Cu and Co functions, while oxidative controls ...
Putri Ramadhany, Peiqi Qiu, Thành Trần‐Phú, Denny Gunawan, Bernt Johannessen, Rosalie K. Hocking, Yan Jiao, Rose Amal, Rahman Daiyan   +8 more
wiley   +1 more source

Engineering Ultra‐Low Fe or Ni Loading in Polymer Derived SiCN(O) Fibre Mats: Exploring the Performance towards Alkaline OER

Advanced Materials Interfaces, EarlyView.
Polymer‐derived SiCN(O) fibre mats enable anchoring of ultra‐low amounts of transition metals for efficient alkaline oxygen evolution. The distinct behaviour of Fe‐ and Ni‐based fibres highlights the importance of metal phase and support interactions in tailoring catalytic behaviour.
Eranezhuth Wasan Awin, Marwan Ben Miled, Aurélien Habrioux, Samuel Bernard, Stefan Schafföner, Günter Motz   +5 more
wiley   +1 more source

A kinetic study of the leaching of a low-grade niobium-tantalum ore by concentrated KOH solution

, 2005
A kinetic study of the leaching of a low-grade niobium-tantalum ore by concentrated KOH solution under atmospheric pressure has been investigated. The effects of reaction temperature, KOH concentration, agitation speed, particle size and alkalito-ore ...
Yi, DQ, Zhou, HM, Zhang, Y, Zheng, SL
core   +1 more source

Metal Compound‐Based Non‐Enzymatic Electrochemical Cholesterol Sensors: Emerging Materials and Mechanistic Insights

Advanced Materials Interfaces, EarlyView.
This review discusses recent progress in metal complex‐based, non‐enzymatic electrochemical sensors for cholesterol detection. We examine metal oxides, metal sulfides, and hybrid nanomaterials, highlighting their catalytic mechanisms and material design strategies.
Longfei (Jack) Yin, Chao‐Tsen (Rora) Chen, Jacopo Giaretta, Thanh‐Qua Nguyen, Hoang‐Phuong Phan, Fariba Dehghani, Syamak Farajikhah   +6 more
wiley   +1 more source

Scalable Production of Disordered Nickel‐Iron‐Aluminum Oxides as Stable Anodes for Water Electrolysis: The Role of Aluminum

Advanced Materials Interfaces, EarlyView.
Solution precursor plasma spraying enables the scalable fabrication of porous and disordered nickel‐iron‐aluminum oxide coatings as precious‐metal‐free anodes. Aluminum inhibits crystal growth, optimizes local atomic sites, and enhances charge and ion transport to accelerate reaction kinetics, leading to excellent performance and operational stability.
Tugce Ustunel, Joakim Bäckström, Esdras J. Canto‐Aguilar, Mouna Rafei, Litty Thomas Manamel, Mahesh Ramakrishnan, Konstantin Klementiev, Nina Grunditz, Erik Zimmerman, Thomas Wågberg, Susanne Holmin, Eduardo Gracia‐Espino   +11 more
wiley   +1 more source

Advanced Manufacturing of Composite‐Based Systems for Energy Applications

Advanced Materials Technologies, EarlyView.
Advanced manufacturing enables the integration of polymers, ceramics, metal oxides, and composites into architected microstructures with tailored transport pathways. By coupling material selection, manufacturing strategy, and structural design, multifunctional energy systems can simultaneously improve electrochemical performance, thermal management ...
Sri Vaishnavi Thummalapalli, Dhanush Patil, Libin Yang, M. Taylor Sobczak, Anshul Kulkarni, Xiao Sun, Arunachalam Ramanathan, Tiantian Li, Ramaraja P. Ramasamy, Jason J. Locklin, Yanyu Chen, Xianqiao Wang, Arunachala Mada Kannan, Kenan Song   +13 more
wiley   +1 more source

In Situ Formation of Ni‐P‐O‐C Interfaces in DLP‐Printed Carbon Microlattices for Efficient Alkaline Hydrogen Evolution

Advanced Materials Technologies, EarlyView.
Graphical abstract illustrating the fabrication of Ni–P–O–C porous carbon microlattice electrodes by DLP printing of Ni/P precursor‐containing resin followed by high‐temperature carbonization. The resulting conductive microlattice acts directly as the HER cathode in alkaline electrolyte, where in situ formed Ni–P–O–C interfaces provide active sites for
Muzahir Ali, Seongmin Lee, Tasadduq Hussain, Young Kyu Kim, Md. Ali Asgar, Jung Bin In, Seok‐min Kim   +6 more
wiley   +1 more source

Conductive Tin Oxide Under the Thermal Budget of Perovskite/TOPCon Tandems: Toward Indium‐Free Contacts

Advanced Materials Technologies, EarlyView.
This work demonstrates that achieving conductive undoped SnOx contacts required careful tailoring of oxygen vacancy (VO) tuning and defect engineering. Controlling oxygen deposition pressure and low‐temperature annealing (300°C) optimizes defect stoichiometry and mitigates carrier scattering. This low thermal budget approach significantly enhances Hall
Paul Llontop, Mario Hanser, Matthew Wright, Soumyajit Maitra, Eloy J. Marcelis, Jana‐Isabelle Polzin, Martin Bivour, David C. Grinter, Pilar Ferrer, Iris C. G. van den Bosch, Christoph Baeumer, Ruy S. Bonilla, Armin Richter, Monica Morales‐Masis   +13 more
wiley   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

Mineralogical Study of Zard Koh and Kulli Koh Iron Ore Deposits of Pakistan [PDF]

, 2017
Zard Koh and Kulli Koh are two recently discovered iron ore deposits, existing in the Chagai district, Balochistan, Pakistan. PSM (Pakistan Steel Mill Limited) is interested to utilize these ore deposits at priority. Purpose of the present study was to
MUHAMMAD HASSAN AGHEEM, MUHAMMAD ISHAQUE ABRO, SULTAN AHMED KHOSO   +2 more
core   +1 more source