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All Journal Abdimas Toddopuli: Jurnal Pengabdian Pada Masyarakat Abdimas Langkanae INOVASI: Jurnal Hasil Pengabdian Masyarakat IPTEK: Jurnal Hasil Pengabdian kepada Masyarakat Vokatek : Jurnal Pengabdian Masyarakat Hayyan Journal Mammiri: Jurnal Pengabdian Masyarakat Illea
Muhammad Nur Alam
Universitas Negeri Makassar
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Dentistry Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Public Health Social Sciences Other

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A Review: Nanofiller for Chitosan Membrane in DMFC Application Muhammad Nur Alam
Hayyan Journal Vol. 2 No. 2 (2025): June
Publisher : Education and Talent Development Center of Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/hayyan.v2i2.3401

Abstract

Chitosan, a biodegradable polysaccharide derived from chitin, is emerging as a sustainable, low-cost alternative to perfluorinated membranes (like Nafion®) in Direct Methanol Fuel Cells (DMFCs). However, pristine chitosan membranes suffer from low proton conductivity (~10⁻³ S/cm), excessive methanol crossover, limited thermal and oxidative stability, and poor mechanical strength. To address these challenges, significant attention has focused on reinforcing chitosan matrices with nanofillers—such as nanosilica, titanium dioxide (TiO₂), carbon nanotubes (CNTs), graphene oxide (GO), and sulfur- or phosphorous-doped nanoparticles—to tune hydrophilicity, proton transport pathways, and mechanical integrity.This review evaluates synthesis strategies, nanofiller types, and their concentration effects on key membrane properties. Fabrication techniques center on dispersion of nanofillers into chitosan–acid solutions, casting, drying, and crosslinking with agents like glutaraldehyde or tetraethyl orthosilicate (TEOS). Characterizations include SEM/TEM imaging for morphology, mechanical testing for tensile strength and elongation, proton conductivity via electrochemical impedance spectroscopy, methanol permeability assays, and thermal/oxidative resilience through TGA and Fenton’s reagent exposure.Findings demonstrate that silica and TiO₂ nanocomposites can elevate proton conductivity to ~10⁻² S/cm, while reducing methanol permeability to the order of 10⁻⁷ cm²/s. Conductive carbon nanofillers (CNTs, GO) introduced interconnected proton channels, further enhancing conductivity, though at potential cost to homogeneity.
Pemberdayaan Ibu-Ibu Pengusaha Abon Telur melalui Penerapan E-Commerce, Penguatan Manajemen Usaha, dan Legalitas di Kabupaten Bone Rahmat Hidayat; Mahmuddin Mahmuddin; Muhammad Nur Alam
Abdimas Langkanae Vol. 5 No. 2 (2025): September-Desember 2025
Publisher : Pustaka Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53769/jpm.v5i2.509

Abstract

Usaha mikro kecil menengah (UMKM) memiliki peran penting dalam mendukung perekonomian lokal, termasuk usaha rumah tangga pengolahan abon telur di Kabupaten Bone. Mitra kegiatan ini menghadapi berbagai kendala, seperti keterbatasan pemasaran yang hanya mengandalkan WhatsApp story, belum adanya pencatatan keuangan, serta lemahnya legalitas dan branding produk. Program pemberdayaan ini bertujuan untuk meningkatkan kapasitas mitra melalui pemanfaatan e-commerce, pelatihan manajemen usaha, pengembangan desain kemasan, serta pendampingan pengurusan legalitas usaha. Metode pelaksanaan meliputi sosialisasi, pelatihan, penerapan teknologi, serta pendampingan berkelanjutan. Hasil kegiatan menunjukkan adanya peningkatan signifikan dalam keterampilan mitra mengoperasikan e-commerce, pembukuan keuangan sederhana, pengemasan produk, serta pengurusan legalitas. Kegiatan ini mendukung pencapaian Sustainable Development Goals (SDGs) terutama tujuan 8 (Pekerjaan Layak dan Pertumbuhan Ekonomi) dan tujuan 9 (Inovasi dan Infrastruktur). Dengan demikian, program ini mampu meningkatkan daya saing UMKM lokal, memberdayakan perempuan, serta memperkuat ekonomi masyarakat.  
Co-Authors . Sulfikar A. Diva Zalzabilah E.P Afif Zuhdy Idham Agustin Atmaningrum Ahmad Muflih Anugerah Febrian Syam Dewi Cahyani Faradillah Firdaus Fibri Indira Hasnah Natsir Mahmuddin Mahmuddin Masyrurah Masyrurah Muhammad Nadir Netti Herawati Nuratthahirah Ansar Nurul Azmi Widya Rahayu Nurul Azzahrah Aulia Puspa Ide Mulyani Rahayu Rahayu Rahmat Hidayat Ramdani Rina Asrini Bakri Saiful Siti Nur ainun Zakiyah Sitti Faika Sri Wahyuningsih