Different Ligand Functionalized Al‐Based MOFs as a Support for Impregnation of Heteropoly Acid for Efficient Esterification Reactions DOI
Qiuyun Zhang,

Mei Deng,

X. Li

и другие.

Applied Organometallic Chemistry, Год журнала: 2025, Номер 39(6)

Опубликована: Май 19, 2025

ABSTRACT The development of metal–organic frameworks (MOFs)–based heterogeneous catalysts with both Lewis acid and Brønsted sites has proved to be promising useful because they offer an economical route synthesize environment‐friendly biofuels. Here, a series Al‐based MOFs, functionalized by single ‐H, ‐NH 2 , ‐NO groups, are successfully synthesized applied as supports load phosphomolybdic (HPMo) through facile one‐pot hydrothermal method, forming composites HPMo@Al‐MOFs‐X (where X = ), it was used esterify fatty acids into biodiesel. structural features the prepared hybrid materials were evaluated various techniques, including XRD, FTIR, BET, SEM‐EDS, NH 3 ‐TPD, Py‐FTIR, TG, XPS. material characterization revealed that catalytic behavior HPMo@AlB composite is better than HPMo@AlB‐NH HPMo@AlB‐NO pure AlB. optimized conversion oleic (OA) 97.5% under reaction conditions. Moreover, maintained above 90% after nine cycles demonstrated excellent reusability. This outstanding activity stability mainly attributed large specific surface area (138.4 m /g), appropriate pore volume (0.47 cm mesoscale size (17.7 nm) reduced mass transfer resistance, high total acidity, synergistic effect ensures efficient esterification. present research introduces important reference for advancing high‐performance MOFs‐based industrialize biofuels production.

Язык: Английский

Sulfonic Acid and Phospho‐tungstic Acid‐Loaded Organosilicon Nanotubes for Efficient Catalysis of Esterification Reaction DOI
Wei Wang,

Chunlai Liu,

Na Wang

и другие.

ChemistrySelect, Год журнала: 2025, Номер 10(9)

Опубликована: Фев. 27, 2025

Abstract In this paper, we proposed the synthesis of dual‐acid organosilicon nanotubes loaded with sulfonic acid (─SO 3 H) and phospho‐tungstic (HPW) named SO H x ‐Si‐NTs/HPW y (Si‐NTs = ethylene‐bridged nanotubes), by one‐pot approach using P105 (EO 37 PO 56 EO ) as a single micelle template for first time. A variety analytical methods were employed to characterize composites optimal material 0.3 0.7 , which exhibits strong Brønsted acidity, displays hollow tubular structure diameter approximately 9.1 nm. Due synergistic effect ─SO HPW, achieved 99.3% yield methyl oleate under reaction conditions (25/1 methanol/oleic molar ratio 60 mg catalyst dosage at 120 °C 8 h) maintained 92.0% after five times reuse. Simultaneously, (5/1 ethanol/levulinic 5 wt% 115 4 h), ethyl levulinate was 90.6%, 83.1% cycles The catalytic results indicate that has excellent activity stability.

Язык: Английский

Процитировано

0
Synthesis and application of high-performance oil painting pigments DOI
Yake Wang

Chemical Papers, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

Язык: Английский

Процитировано

0
Different Ligand Functionalized Al‐Based MOFs as a Support for Impregnation of Heteropoly Acid for Efficient Esterification Reactions DOI
Qiuyun Zhang,

Mei Deng,

X. Li

и другие.

Applied Organometallic Chemistry, Год журнала: 2025, Номер 39(6)

Опубликована: Май 19, 2025

ABSTRACT The development of metal–organic frameworks (MOFs)–based heterogeneous catalysts with both Lewis acid and Brønsted sites has proved to be promising useful because they offer an economical route synthesize environment‐friendly biofuels. Here, a series Al‐based MOFs, functionalized by single ‐H, ‐NH 2 , ‐NO groups, are successfully synthesized applied as supports load phosphomolybdic (HPMo) through facile one‐pot hydrothermal method, forming composites HPMo@Al‐MOFs‐X (where X = ), it was used esterify fatty acids into biodiesel. structural features the prepared hybrid materials were evaluated various techniques, including XRD, FTIR, BET, SEM‐EDS, NH 3 ‐TPD, Py‐FTIR, TG, XPS. material characterization revealed that catalytic behavior HPMo@AlB composite is better than HPMo@AlB‐NH HPMo@AlB‐NO pure AlB. optimized conversion oleic (OA) 97.5% under reaction conditions. Moreover, maintained above 90% after nine cycles demonstrated excellent reusability. This outstanding activity stability mainly attributed large specific surface area (138.4 m /g), appropriate pore volume (0.47 cm mesoscale size (17.7 nm) reduced mass transfer resistance, high total acidity, synergistic effect ensures efficient esterification. present research introduces important reference for advancing high‐performance MOFs‐based industrialize biofuels production.

Язык: Английский

Процитировано

0