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1.
Micromachines (Basel) ; 14(10)2023 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-37893367

RESUMO

This study presents a cost-effective method for producing high-performance cathodes for aluminum-air batteries. Commercial fuel cell cathodes are modified through electrodeposition of nickel and manganese species. The optimal conditions for electrodeposition are determined using a combination of structural (Raman, SEM, TEM) and electrochemical (LSV, EI, discharge curves) characterization techniques. The structural analysis confirms successful incorporation of nickel and manganese species onto the cathode surface. Electrochemical tests demonstrate enhanced electrochemical activity compared to unmodified cathodes. By combining the favorable properties of electrodeposited manganese species with nickel species, a high-performance cathode is obtained. The developed cathode exhibits capacities of 50 mA h cm-2 in aluminum-air batteries across a wide range of current densities. The electrodeposition method proves effective in improving electrochemical performance. A key advantage of this method is its simplicity and cost-effectiveness. The use of commercially available materials and well-established electrodeposition techniques allows for easy scalability and commercialization. This makes it a viable option for large-scale production of high-performance cathodes for the next-generation energy storage devices.

2.
Prev Cardiol ; 12(2): 65-71, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19476579

RESUMO

The authors assessed a large cohort of patients with coronary heart disease (CHD) or at high risk for developing CHD in terms of lipid profile, lipid-lowering treatment, and attainment of National Cholesterol Education Program (NCEP) target low-density lipoprotein cholesterol (LDL-C) levels. The investigation was a cross-sectional study involving Spanish outpatients treated in primary or secondary care facilities. From a total of 26,598 attending patients, 12,128 with CHD or CHD risk equivalents were recruited by 1875 physicians; 49% had CHD and 69% had multiple risk factors. Only 25% of patients attained LDL-C values <100 mg/dL, 76.6% patients received lipid-lowering therapy (statins in 95.4% of cases), and 54% of physicians considered that a treatment change was required (the most frequent choice was the addition of ezetimibe to current statin therapy). In this large cohort of high-risk coronary patients, only 25% attained a target LDL-C of <100 mg/dL. These results highlight a need for improved patient care and physician awareness/training.


Assuntos
LDL-Colesterol/sangue , Doença das Coronárias/epidemiologia , Dislipidemias/complicações , Hipolipemiantes/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Doença das Coronárias/etiologia , Doença das Coronárias/prevenção & controle , Estudos Transversais , Dislipidemias/tratamento farmacológico , Dislipidemias/epidemiologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Pacientes Ambulatoriais , Prevalência , Estudos Retrospectivos , Fatores de Risco , Espanha/epidemiologia , Resultado do Tratamento
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