Scholarlink

Abstract <p>Biodiesel production from high free fatty acid (FFA) algal oils presents both a sustainable energy solution and a catalytic challenge due to the need for simultaneous esterification and transesterification. Conventional catalysts often lack the bifunctionality required to process such complex feedstocks effectively. This study addresses this limitation by engineering a novel hybrid nanocatalyst, Co-salen@MoS<sub>2</sub>, which combines the Lewis acidity of cobalt–salen complexes with the high surface area and stability of MoS<sub>2</sub> nanosheets. The synthesis involved hydrothermal fabrication of MoS<sub>2</sub> followed by reflux-based Co-salen complexation and mechanochemical anchoring. Comprehensive characterizations, including XRD, FTIR, BET, TEM, and TGA, validated the hybrid’s structural integrity and porosity. Catalytic performance was assessed through biodiesel production from <i>Nannochloropsis</i> sp. oil, yielding more than 93% at a 1 wt% catalyst dosage. The catalyst demonstrated 97% activity retention after five cycles and outperformed carbonyl@WS<sub>2</sub> and bipyridyl@MoSe<sub>2</sub> in both yield and thermal stability, reducing activation energy by up to 50%. These results underscore the synergistic effect of organometallic coordination and 2D nanostructuring in enhancing reaction kinetics and durability. The study confirms Co-salen@MoS<sub>2</sub> as a promising candidate for industrial biodiesel applications and lays the groundwork for future exploration of multifunctional nanocatalyst systems in green energy production.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Hybrid Organometallic Nanostructured Catalysts for One-Pot Esterification–Transesterification of High-FFA Feedstocks

  • 期刊论文

  • 发表日期：

    2025年9月1日

查看全文
  • P. Prabhakaran,
  • R. Dhairiyasamy,
  • D. Varshney,
  • S. Singh

摘要

Abstract

Biodiesel production from high free fatty acid (FFA) algal oils presents both a sustainable energy solution and a catalytic challenge due to the need for simultaneous esterification and transesterification. Conventional catalysts often lack the bifunctionality required to process such complex feedstocks effectively. This study addresses this limitation by engineering a novel hybrid nanocatalyst, Co-salen@MoS2, which combines the Lewis acidity of cobalt–salen complexes with the high surface area and stability of MoS2 nanosheets. The synthesis involved hydrothermal fabrication of MoS2 followed by reflux-based Co-salen complexation and mechanochemical anchoring. Comprehensive characterizations, including XRD, FTIR, BET, TEM, and TGA, validated the hybrid’s structural integrity and porosity. Catalytic performance was assessed through biodiesel production from Nannochloropsis sp. oil, yielding more than 93% at a 1 wt% catalyst dosage. The catalyst demonstrated 97% activity retention after five cycles and outperformed carbonyl@WS2 and bipyridyl@MoSe2 in both yield and thermal stability, reducing activation energy by up to 50%. These results underscore the synergistic effect of organometallic coordination and 2D nanostructuring in enhancing reaction kinetics and durability. The study confirms Co-salen@MoS2 as a promising candidate for industrial biodiesel applications and lays the groundwork for future exploration of multifunctional nanocatalyst systems in green energy production.