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To address the issues of carbon deposition and activity decay in dry reforming of methane(DRM),we characterized the structure of high-entropy alloy Ni-based catalysts(Ni_3MoCoZn)Al12O24 synthesized by hot solvent method, co-precipitation method, ball milling method, and sol-gel method, and compared their DRM reaction catalytic performances.The results show that(Ni_3MoCoZn)Al12O24 catalyst synthesized by sol-gel method has a larger specific surface area(about 118 m2·g-1) and a favorable mesoporous structure(3-4 nm).The catalyst synthesized by sol-gel method has a higher proportion of high-temperature reduction peaks, suggesting it has a stronger metal-support interaction.The catalyst synthesized by sol-gel method exhibits the highest and the most stable conversion rates of CH4 and CO2 at 800 ℃ and GHSV of 36 000 mL·h-1·gcat-1.While, the catalysts synthesized by co-precipitation method and ball milling method show significant deactivation after 20 h.This study provides a experimental evidence for the design, synthesis, and the element regulation of DRM catalyst.
[1] OSES C,TOHER C,CURTAROLO S.High-entropy ceramics[J].Nature Reviews Materials,2020,5:295-309.
[2] QI H,CHEN L,DENG S Q,et al.High-entropy ferroelectric materials[J].Nature Reviews Materials,2023,8:355-356.
[3] SARKAR A,WANG Q S,SCHIELE A,et al.High-entropy oxides:fundamental aspects and electrochemical properties[J].Advanced Materials,2019,31(26):1806236.
[4] FENG D Y,DONG Y B,ZHANG L L,et al.Holey lamellar high-entropy oxide as an ultra-high-activity heterogeneous catalyst for solvent-free aerobic oxidation of benzyl alcohol[J].Angewandte Chemie:International Edition,2020,59(44):19503-19509.
[5] LIU J L,LI Y Q,CHEN Z,et al.Polyoxometalate cluster-incorporated high entropy oxide sub-1 nm nanowires[J].Journal of the American Chemical Society,2022,144(50):23191-23197.
[6] JIANG B,BRIDGES C A,UNOCIC R R,et al.Probing the local site disorder and distortion in pyrochlore high-entropy oxides[J].Journal of the American Chemical Society,2021,143(11):4193-4204.
[7] AAMLID S S,OUDAH M,ROTTLER J,et al.Understanding the role of entropy in high entropy oxides[J].Journal of the American Chemical Society,2023,145(11):5991-6006.
[8] FAN L F,JI Y X,WANG G X,et al.High entropy alloy electrocatalytic electrode toward alkaline glycerol valorization coupling with acidic hydrogen production[J].Journal of the American Chemical Society,2022,144(16):7224-7235.
[9] LUO Y B,HAO S Q,CAI S T,et al.High thermoelectric performance in the new cubic semiconductor AgSnSbSe3 by high entropy engineering[J].Journal of the American Chemical Society,2020,142(35):15187-15198.
[10] SUN Y F,DAI S.High-entropy materials for catalysis:a new frontier[J].Science Advances,2021,7(20):abg1600.
[11] ABDELHAFIZ A,WANG B M,HARUTYUNYAN A R,et al.Carbothermal shock synthesis of high entropy oxide catalysts:dynamic structural and chemical reconstruction boosting the catalytic activity and stability toward oxygen evolution reaction[J].Advanced Energy Materials,2022,12(35):2200742.
[12] YAO Y G,DONG Q,BROZENA A,et al.High-entropy nanoparticles:synthesis structure-property relationships and data-driven discovery[J].Science,2022,376(6589):abn3103.
[13] WARD-O′BRIEN B,PICKERING E J,AHUMADA-LAZO R,et al.Synthesis of high entropy lanthanide oxysulfides via the thermolysis of a molecular precursor cocktail[J].Journal of the American Chemical Society,2021,143(51):21560-21566.
[14] YAO Y G,HUANG Z N,XIE P F,et al.Carbothermal shock synthesis of high-entropy-alloy nanoparticles[J].Science,2018,359(6383):1489-1494.
[15] TIAN L Y,ZHANG Z,LIU S,et al.High-entropy spinel oxide nanofibers as catalytic sulfur hosts promise the high gravimetric and volumetric capacities for lithium-sulfur batteries[J].Energy & Environmental Materials,2022,5(2):645-654.
[16] FRACCHIA M,CODURI M,GHIGNA P,et al.Phase stability of high entropy oxides:a critical review[J].Journal of the European Ceramic Society,2024,44(2):585-594.
[17] ZENG Y,OUYANG B,LIU J,et al.High-entropy mechanism to boost ionic conductivity[J].Science,2022,378(6626):1320-1324.
[18] LI T Y,YAO Y G,HUANG Z N,et al.Denary oxide nanoparticles as highly stable catalysts for methane combustion[J].Nature Catalysis,2021,4(1):62-70.
[19] WANG K,HUA W B,HUANG X H,et al.Synergy of cations in high entropy oxide lithium ion battery anode[J].Nature Communications,2023,14(1):1487.
[20] WANG X Z,DONG Q,QIAO H Y,et al.Catalytic materials:continuous synthesis of hollow high-entropy nanoparticles for energy and catalysis applications[J].Advanced Materials,2020,32(46):2070341.
[21] MAZZA A R,SKOROPATA E,SHARMA Y,et al.Designing magnetism in high entropy oxides[J].Advanced Science,2022,9(10):2200391.
[22] SU L,HUYAN H,SARKAR A,et al.Direct observation of elemental fluctuation and oxygen octahedral distortion-dependent charge distribution in high entropy oxides[J].Nature Communications,2022,13(1):2358.
[23] ZHANG C L,YU S H.Nanoparticles meet electrospinning:recent advances and future prospects[J].Chemical Society Reviews,2014,43(13):4423-4448.
Basic Information:
China Classification Code:TE665.3;O643.36
Citation Information:
[1]XU Xin,BAI Yue,LI Lin.Synthesis of High-Entropy Alloy Catalyst(Ni_3MoCoZn)Al_(12)O_(24) by Sol-Gel Method and Its Application in Dry Reforming of Methane[J].Chemistry ＆ Bioengineering,2026,43(08):20-25.
Fund Information:
国家自然科学基金项目(U22A20394)
2026-05-07
2026-05-07
2026-05-07