SOME OBSERVATIONS ON NUCLEAR ALIGNMENT IN COBALT METAL

1959 ◽  
Vol 37 (11) ◽  
pp. 1321-1324 ◽  
Author(s):  
J. M. Daniels ◽  
M. A. R. LeBlanc
1952 ◽  
Author(s):  
B. Weinstock ◽  
B. M. Abraham ◽  
D. W. Osborne
Keyword(s):  

Nanoscale ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 6201-6211
Author(s):  
Wenxia Chen ◽  
Wei Wei ◽  
Kefeng Wang ◽  
Nan Zhang ◽  
Guangliang Chen ◽  
...  

A MOF-derived CoPO hollow polyhedron structure is designed by simultaneous oxidation/phosphatization processes during Ar–N2 RF plasma discharge.


Author(s):  
Sathyavathi Sundararaju ◽  
Manjula Arumugam ◽  
Prakash Bhuyar

Abstract Background Detoxification of heavy metal pollutants in wastewater has become a serious problem to surrounding environment. This research was conducted to utilize a potential heavy metal-resistant bacterium for the remediation of cobalt metal and simultaneous synthesis of cobalt oxide nanoparticles in the form of powder for various industrial applications. Metal oxide nanoparticles have great applications in electrochemical devices such as supercapacitors, biosensors, and batteries. Method A heavy metal-resistant bacterium Microbacterium sp. MRS-1 isolated from electroplating industrial effluent reduced cobalt ions from an initial concentration of 200 mg/L to 26 mg/L were analyzed by atomic absorption spectroscopy. Instrumental analysis of bacterially synthesized Co3O4 has been characterized. Cytotoxicity of synthesized nanoparticles was assessed by MTT assay. Results Microbacterium sp. MRS-1 isolated from electroplating industrial effluent was found to be suitable for cobalt oxide nanoparticles as it showed tolerance towards high concentration of metal. The nutrient broth containing metal solution and Microbacterium sp. MRS-1 showed color change from light pink to dark pink indicated the formation of extracellular nanoparticles. It also converted soluble cobalt salts into less soluble cobalt oxide nanoparticles outside the cell which allows easy recovery of nanoparticles without the destruction of cells and simultaneous detoxification of toxic metal ions. Electron microscopic imaging verified that nanoparticles were predominantly surrounding the bacterial cells and SEM imaging revealed that the produced particles were in the range of 10–100 nm in size. XRD spectrum exhibited 2θ values were corresponding to cubic face-centered cobalt oxide (Co3O4) nanoparticles. Conclusion The present study investigated new prospective for eco-friendly detoxification of toxic heavy metal Co from metal-polluted sites and the production of cobalt oxide nanoparticles in powder form for clinical and other industrial applications.


1977 ◽  
Vol 32 (11) ◽  
pp. 1217-1221 ◽  
Author(s):  
Helmut Behrens ◽  
Rolf Hüller ◽  
Anton Jungbauer ◽  
Peter Merbach ◽  
Matthias Moll

The following known and novel cobalt carbonyl complexes are formed by reactions of cobalt metal with bipy, phen, Ph2P-CH2-CH2-PPh2 (P͡P), PPh3, Ph2P-CH2-CH2-NEt2 (P͡N), InCl, SnX2 (X = Cl, Br, I), Cd and HgBr2 under CO pressure (200 bar):[Co(bipy)3][Co(CO)4]2, [Co(phen)3][Co(CO)4]2, [Co2(P͡P)3(CO)4][Co(CO)4]2; Co2(CO)6 (PPh3)2, Co2(CO)6 (P͡N)2; [Co(CO)4]2SnCl2, {[Co(CO)4]2InCl}2; [Co(CO)3PPh3]2SnX2(X = Cl, Br, I), [Co(CO)3(P͡N)]2SnCl2, [Co(CO)3(P͡N)]2M (M = Cd, Hg).


1962 ◽  
Vol 7 (79) ◽  
pp. 1087-1098 ◽  
Author(s):  
M. A. Grace ◽  
C. E. Johnson ◽  
R. G. Scurlock ◽  
R. T. Taylor
Keyword(s):  

2018 ◽  
Vol 54 (11) ◽  
pp. 1359-1362 ◽  
Author(s):  
Yadagiri Kommagalla ◽  
Ken Yamazaki ◽  
Takuma Yamaguchi ◽  
Naoto Chatani

An air stable and inexpensive cobalt-metal, mild and efficient catalytic system.


RSC Advances ◽  
2020 ◽  
Vol 10 (73) ◽  
pp. 45159-45169
Author(s):  
Kyungjun Kim ◽  
Dong Woo Kang ◽  
Youngheon Choi ◽  
Wanggyu Kim ◽  
Hyunjoo Lee ◽  
...  

Addition of Pd into Co helped remarkably to reduce cobalt oxide and nitride to cobalt metal by enhanced hydrogen dissociation and desorption.


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