Tinjauan Literatur Pengaruh Doping Fe terhadap Struktur dan Performa Termoelektrik Paduan Full-Heusler Ni₂Coal
Year: 2026
Type: article
Abstract: : The increasing energy demand, together with waste heat released from industrial processes, transportation systems, power plants, and mechanical equipment, has encouraged the development of efficient, sustainable, and environmentally friendly energy conversion materials. Thermoelectric materials are promising candidates because they can directly convert temperature differences into electrical energy through the Seebeck effect without moving components, making them suitable for waste heat recovery applications. However, their practical use is still limited by relatively low conversion efficiency, which is expressed by the figure of merit (ZT). The ZT value depends on the balance among the Seebeck coefficient, electrical conductivity, and thermal conductivity; therefore, improving one parameter often affects the others. In this context, full-Heusler alloys are attractive because they possess crystal structure flexibility, good thermal stability, and electronic properties that can be tuned through elemental substitution. This literature review aims to analyze the effect of Fe Doping on the structure and thermoelectric performance of Ni₂CoAl full-Heusler alloys by examining 50 journal references related to thermoelectric materials, Heusler alloys, Fe-based full-Heusler compounds, half-Heusler systems as comparisons, and Ni-Co-Al compounds. The review indicates that Fe Doping may modify lattice parameters, induce structural distortion, regulate carrier concentration, and enhance phonon scattering to reduce lattice thermal conductivity. Furthermore, Fe Doping may influence atomic ordering and electronic transport behavior that determine power factor improvement. Nevertheless, direct studies on Ni₂₋ₓFeₓCoAl remain limited; therefore, experimental investigations are required to correlate Doping composition, crystal structure, transport properties, and ZT values systematically Keywords: Fe Doping; Full-Heusler; Ni₂CoAl; Thermoelectric; Figure of merit
DOI: 10.31539/f8m4ga74
Institution: Universitas Mercu Buana Yogyakarta
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7204496462