Results 101 to 110 of about 278,464 (312)

Domestic Cobalt Flow and Mid-Term Demand Forecast

Journal of MMIJ, 2016
Cobalt tends to occur in the high risk regions of the world. Cobalt sources are typically concentrated in Congo, DRC, and there are concerns about supply security.
Yuna SEO, Shinichirou MORIMOTO
doaj   +1 more source

Cobalt-Catalyzed Trifluoromethoxylation of Epoxides

, 2018
A catalytic ring-opening reaction of epoxides by nucleophilic trifluoromethoxylation of trifluoromethyl arylsulfonate has been developed based on the use of a cobalt catalyst. This reaction provides an efficient, simple route for directly construction of
Yongliang Wei, Pingping Tang, Jie Liu, Jie Liu (15128), Yongliang Wei (5921270), Pingping Tang (1470787)   +5 more
core   +2 more sources

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

Geological characteristics, controlling factors and prospecting directions of associated cobalt deposits in the Weiningbeishan area, Ningxia

地质科技通报
Weiningbeishan is located in the eastern section of the North Qilian orogenic belt, which is one of the regions with the most favorable conditions for cobalt mineralization in Ningxia.
Lianfu HAI, Xiaojun ZHANG, Yongliang SUN, Rui TAO, Deliang CHAI, Anlu LIU, Chao MEI, Rui REN, Liang WU   +8 more
doaj   +1 more source

Elution strategies for recovery of nickel and cobalt from laterite tails through scavenging resin-in-pulp [PDF]

, 2012
Ion exchange resin has been used to recover value metal in the uranium and gold industry through resin-in-pulp/leach and similar carbon-in-leach/pulp processes for decades.
Vaughan, James, Littlejohn, P., Vaughan, J., Nikoloski, A., Littlejohn, Patrick, Nikoloski, Aleks   +5 more
core  

Robust Spin Splitting and Fermiology in the Layered Altermagnet CoNb4${\rm CoNb}_4$Se8${\rm Se}_8$

Advanced Materials, EarlyView.
The emergence of an altermagnetic phase is demonstrated in the cobalt‐intercalated superconducting 2H‐NbSe2 polymorph. A combined theoretical and experimental approach directly probes the magnetism, the altermagnetic lifting of Kramers degeneracy, and the electronic phase space, establishing CoNb4Se8 as the first g‐wave altermagnetic layered material ...
Alessandro De Vita, Chiara Bigi, Davide Romanin, Matthew D. Watson, Vincent Polewczyk, Marta Zonno, François Bertran, Pietro M. Forcella, My Bang Petersen, Federico Motti, Giovanni Vinai, Manuel Tuniz, Federico Cilento, Mario Cuoco, Brian M. Andersen, Andreas Kreisel, Luciano Jacopo D'Onofrio, Oliver J. Clark, Mark T. Edmonds, Christopher Candelora, Muxian Xu, Siyu Cheng, Alexander LaFleur, Tommaso Antonelli, Giorgio Sangiovanni, Lorenzo Del Re, Ivana Vobornik, Jun Fujii, Fabio Miletto Granozio, Alessia Sambri, Emiliano Di Gennaro, Jeppe B. Jacobsen, Henrik Jacobsen, Iulia Cojocariu, Marcin Szpytma, Andrea Locatelli, Tevfik Mentes, Won Seop Song, Jun Sung Kim, Matthieu Jamet, Jean‐François Jacquot, Pasquale Orgiani, Ralph Ernstorfer, Ilija Zeljkovic, Younghun Hwang, Matteo Calandra, Jill A. Miwa, Federico Mazzola   +47 more
wiley   +1 more source

Experiment on Mineral Processing of a Mixed Iron Ore

Kuangchan zonghe liyong
The iron grade of the mixed ore is 37.81%, and the main iron minerals are siderite and hematite, in which mineral contents are 50.35% and 24.28%, respectively, and the ratio of the two mineral contents is 2.07∶1.
Zhilu YANG, Lei YANG, Biwen ZHAO, Meijia SHI   +3 more
doaj   +1 more source

Removal of cobalt from lubricant oil by the use of bentonite: equilibrium, kinetic and adsorption preliminary studies

Brazilian Journal of Radiation Sciences, 2019
Radionuclides may contaminate lubricant oils in nuclear power plants. In Brazil, this kind of waste has been stored in the generator’s facilities, awaiting treatment alternatives.
VALERIA CUCCIA, SANDRO ROGÉRIO NOVAES SELES, ANA CLAUDIA QUEIROZ LADEIRA   +2 more
doaj   +1 more source

Cobalt-Catalyzed Regio- and Diastereoselective Formal [3 + 2] Cycloaddition between Cyclopropanols and Allenes

, 2019
A cobalt–diphosphine catalyst has been found to promote a formal [3 + 2] cycloaddition reaction between a cyclopropanol and an allene via cyclopropanol ring opening, which affords a 3-alkylidenecyclopentanol derivative with high regio- and ...
Junfeng Yang, Naohiko Yoshikai, Sun, Qiao, Naohiko Yoshikai (1479319), Yoshikai, Naohiko, Junfeng Yang (1590952), Qiao Sun, Qiao Sun (208432), Yang, Junfeng   +8 more
core   +1 more source

Phase Diagrams Enable Solid‐State Battery Design

Advanced Materials Interfaces, EarlyView.
Batteries are non‐equilibrium devices with inherent thermodynamic driving forces to react at interfaces, regardless of kinetics or operating conditions. Chemical potential mismatches across interfaces are dissipated via interfacial reactions. In this work, it is illustrated how phase diagrams and chemical potential maps predict degradation pathways but
Nathaniel L. Skeele, Matthias T. Agne
wiley   +1 more source