[PDF] Top 20 J. Braz. Chem. Soc. vol.8 número2

J. Braz. Chem. Soc. vol.8 número2

... Du ran te o XII CIBAE, o Dr. Ale jan dro J. Arvia, do INIFTA, La Pla ta, Argen ti na, foi ele i to o pri me i ro Mem bro Ho no rí fi co da So ci e da de Ibe ro a me ri ca na de Ele tro quí mi ca (SIBAE), como re ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... In the con text of metal ion anal y ses, chem i cally mod i - fied elec trodes (CMEs) pos sess ing prop er ties have emerged as one of the most at trac tive ar eas for re search 1-4 . Among their ad van tages are ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... area), ax i ally em bed ded in PTFE hold ers, were used as work ing elec trodes. Prior to each elec tro chem i cal ex per i - ment, the work ing elec trodes were me chan i cally pol ished with 400 and 600 grade em ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... tro chem i cal stud ies of polycrystalline cop per elec trodes in car bon ate-bicarbonate so- lu tions an a lyz ing both tem per a ture and pH ef fects were car ried out, cov er ing a wide range of elec tro lyte ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... The an odic dis so lu tion of bi nary al loys in dif fer ent aque ous en vi ron ments has been in ves ti gated un der a wide range of ex per i men tal con di tions 1-6 mainly fol low ing a dis - pute be tween se lec tive ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... shows (Fig. 1) one main an odic peak at c.a. -0.17 V (peak II) and two sat el lite humps, one at c.a. -0.33 V (peak I) and the other at 0.07 V (peak II*), which pre cedes the on set of the sec ond ary pas sive cur rent ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... The ki net ics and ther mo dy namic as pects of charge trans fer in con duct ing poly mers were in ves ti gated. A re stricted dif fu sion model was used to an a lyze ki netic data ob tained from ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... the chem i - cal ki net ics of sub sti tu tion of the wa ter mol e cules by azide, which may be an ex pla na tion for the de crease in the lim it - ing cur rent (at high azide con cen tra tions) ob served for co - ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... tro chem i cal tech niques, such as cy clic voltammetry, are ap plied to es tab lish the po ten tials cor re - spond ing to the sig nif i cant re ac tions, and based on the re - sults of chem i cal anal y ... See full document

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J. Braz. Chem. Soc. vol.8 número2 en a01v08n2

... Du ring the XII CIBAE, Dr. Ale jan dro J. Arvia, of INIFTA, La Pla ta, Argen ti na, was elec ted the first Ho no ri fic Mem ber of the So ci e da de Ibe ro a me ri ca na de Ele tro quí mi ca (SIBAE), in re cog ni ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... tro chem i cal re ac tion as so ci ated with this sig nal is not clear be cause Sm(III) should not show elec tro chem i cal ac tiv ity, con sid - er ing the Pourbaix di a grams for sa mar ium 9 ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... Elec tro chem i cal mea sure ments per formed us ing the Pb-3.4%Sb elec trode (Fig. 1) re veal ad di tional cur rent con - tri bu tions: two an odic cur rent peaks at -0.37 and -0.15 V (A’ and A’’) lo cated in the ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... tro chem is try when a new solid phase is formed, as in the case of metal electrodeposition or when a phase is de stroyed, as in metal cor ro ...tro chem i cal re ac - ...ics, chem is try, math e mat ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... tro chem i - cal Mass Spec trom e try), to gether with in-situ FTIRS (Fou - rier Trans form In fra red Spec tros copy) have been used to iden tify the eth yl ene electrooxidation prod ucts (eth a nol, ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... and chem i cal prop er ties such as elec tri cal con duc tiv ity, po ros ity, man ga nese con tent, sur- face area, elec trode po ten tial, pore size, and par ti cle shape and size, have been mea sured and dis ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... spe cies occuring at po ten tials in the plat i num ox ide re gion. Ac cord ing to pre vi ous stud ies, the res i dues from for mic acid, eth a nol, and propargyl al co hol on plat i num in acid me dia are dif fer ent, ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... - chem i cal en ergy stor age de ...the chem i cal stor age of hy dro gen as a metal hy dride may lead to a con sid er able re duc - tion in op er at ing pres sures and vol ...ume. Vol u met ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... tro chem i cal tech - niques: potentiodynamic po lar iza tion curves, spon ta ne ous ac ti va tion mea sure ments, elec tro chem i cal sim u la tion of crev ice cor ro sion in a two-compartment cell, and ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... peak (Peak I) at ca. -0.3 V, as so ci ated with Ni/Ni(II) hy - drox ide trans for ma tion 11 , a sec ond an odic con tri bu tion (Peak II) at ca. 0.05 V, re lated to the ox i da tion of Co(II) to Co(III) ox ides or hy ... See full document

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J. Braz. Chem. Soc. vol.8 número2

... (see Ta ble 1). The high transpassive cur rents ob served with the bac te ria cul ture in the lac tate/sul fate me dium, shown in Fig. 3(b), clearly in di cate the high aggressivity of the me- dium in duced by the mi cro ... See full document

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