인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
Natural seawater is an abundant electrolyte for powering marine sensors, but systematic performance data for simple galvanic cells using commercially available metals in untreated seawater remain limited under quiescent, passively aerated conditions. This study screened twenty-one unique electrode combinations generated from seven commercially available metals. Based on the screening results, six representative electrode combinations covering high-, intermediate-, and negligible-performance behavior were selected for detailed discussion and graphical presentation. (Zn–Pb, Zn–Mn, Fe–Zn, Mn–Cu, SS–SS, and Pb–Pb) for seawater-driven power generation using natural Red Sea seawater. Open-circuit voltage, loaded voltage under 200 Ω, and current were measured. Electrolyte evolution was evaluated using pH, conductivity, total dissolved solids, and inductively coupled plasma mass spectrometry (ICP-MS) analysis. An eight-cell Zn–SS304 series array was subsequently evaluated as a proof-of-concept demonstration by continuously powering a 30-LED parallel load for three days. Zn–Pb produced the highest output (0.367 mW, 1.36 mA, ~198 Ω), followed by Zn–Mn and Fe–Zn. Mn–Cu, SS–SS, and Pb–Pb showed negligible activity. Electrolyte pH decreased from 8.1 to 6.5–7.2 for the more electrochemically active electrode pairs. The Zn–SS304 array maintained a stable operating output (~2.55 V, ~1.5 mA) over 72 h. This work establishes a systematic engineering performance baseline for commercially available metal electrode combinations operating in untreated natural seawater under passive conditions, identifying Zn–Mn as a promising non-toxic candidate and Zn–Pb as a high-performance reference.
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