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Munir, Rahmawati
Departement Of Physics, Faculty Of Mathematics And Natural Science, Mulawarman University
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : Jurnal Fisika Unand

 1 
X-ray Absorption Near Edge Structure (XANES) Spectrum Interpretation for LiFePO4-Silicon Doped Cathode Material Sahara Hamas Intifadhah; Kholis Nurhanafi; Fahmi Astuti; Rahmawati Munir; Dadan Hamdani; Darminto Darminto
Jurnal Fisika Unand Vol 12 No 3 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.12.3.348-354.2023

Abstract

LiFePO4-Silicon doped has been widely developed as a battery cathode material. Due to the doping of silicon atoms, this study aims to determine the peak energy (E0), oxidation state and percentage of component composition for Fe K-edge. The experimental sample used are LFP Si-0%, LFP Si-1%, LFP Si-3% and LFP Si-6%. These samples were characterized using XAS (X-ray Absorption Spectroscopy). XANES spectrum showed the peak energy of Pre-edge area is 7113.08 – 7114.49 eV. The oxidation state of Fe atoms were increased and tend to be Fe3+ than Fe2+. Moreover, Linear Combination Fitting (LCF) used to determine the ratio composition FeO/Fe2O3 in experimental samples. The ratio composition indicated Fe atom is multivalent, when the percentage of silicon-doped increases, the ratio of Fe3+ increased.It has been found that the presence of silicon atoms in the LiFePO4 structure has an effect in electronic structure.
X-ray Absorption Near Edge Structure (XANES) Spectrum Interpretation for LiFePO4-Silicon Doped Cathode Material Intifadhah, Sahara Hamas; Nurhanafi, Kholis; Astuti, Fahmi; Munir, Rahmawati; Hamdani, Dadan; Darminto, Darminto
Jurnal Fisika Unand Vol 12 No 3 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.12.3.348-354.2023

Abstract

LiFePO4-Silicon doped has been widely developed as a battery cathode material. Due to the doping of silicon atoms, this study aims to determine the peak energy (E0), oxidation state and percentage of component composition for Fe K-edge. The experimental sample used are LFP Si-0%, LFP Si-1%, LFP Si-3% and LFP Si-6%. These samples were characterized using XAS (X-ray Absorption Spectroscopy). XANES spectrum showed the peak energy of Pre-edge area is 7113.08 – 7114.49 eV. The oxidation state of Fe atoms were increased and tend to be Fe3+ than Fe2+. Moreover, Linear Combination Fitting (LCF) used to determine the ratio composition FeO/Fe2O3 in experimental samples. The ratio composition indicated Fe atom is multivalent, when the percentage of silicon-doped increases, the ratio of Fe3+ increased.It has been found that the presence of silicon atoms in the LiFePO4 structure has an effect in electronic structure.
Co-Authors Abdurrahman, Adam Adrianus Inu Natalisanto Agus Anwar Ahmad Zarkasi Akbar Perdana Akbar Perdana Alris Sanca Pratama Putra Amirin Kusmiran Anisa Putri Astuti, Fahmi Dadan Hamdani Dadan Hamdani Dadan Hamdani Dadan Hamdani, Dadan Dani Josafat Simanjuntak Darminto . Darminto Darminto David Bandhaso Destri Amelia Akbarri Djayus Ekaviyanti Ekaviyanti Elfrida Dwi Saputri Erlin Rappan Erlinda Putri Erlinda Ratnasari Putri Euis Sustini Fachrudy, Muhammad Adi Fahmi Astuti, Fahmi Fawwaz Apto Anugro Hamdi, M. Khilal Idris Mandang Idris Mandang, Idris Igor Levi Satriani Intifadhah, Sahara Hamas Khalisha, Siti Nur Khoiriyah Khoiriyah Kholis Nurhanafi Khuluqi, Ibnu Akmal Kormil Saputra Margareta, Desyana Olenka Margaretta, Desiana Olenka Mikrajuddin Abdullah Mislan Mislan Mislan Mohammad Asrul Muhammad Dhia Ar Rasyid Muhammad Fauzil Hafidz Muhammad Naufal Azhari Munir, Rahmiati Murtadha, Nayla Izzatil Mutmainna, Mutmainna Nadia Rudyanti Nadya Amalia Namira Yolanda Namira Yolanda Nia Amanda Nurohman, Ali Pebriani, Putri Hesti Perdana, Akbar Putri, Devina R, Andrian Rahman, Dui Yanto Rahmayanti, Handika Dany raudatul jannah Rayzy Perwitasari Sutaji Putri, Devina Riska Dwi Andriana Robert Janssen Stevenly Safitri, Niken Ari Salamah, Alifah Balqis Sparisoma Viridi Suhadi Muliyono Sulistyowati, Rita Syaharani Puspita Sari Utami, Fisca Dian Wahidah Wahidah Wahidah Wahidah Wahyuda, Aji Arda Nur Wardani Wardani Wardhani, Pratiwi Sri Yanti, Nuri Yusrani, Nurrohimawati Zetsaona Sihotang Zurma, Retno