Aramid fiber, as a new generation of synthetic fiber material, has excellent insulation and mechanical properties and is widely used in high-voltage power transmission and transformation equipment. However, the problems of smooth surface and low chemical reactivity seriously restrict the combination with polymers and reduce the withstand voltage characteristics of insulation devices. Hence, this paper proposes to use aramid nanofibers (ANFs) obtained through nanofibrillation treatment to regulate the surface roughness of aramid fibers. Meanwhile, polar functional groups were introduced during the deprotonation process, successfully constructing polar-nanofibrillation structures on the aramid fiber surface, further regulating the polarity of fiber surfaces. Through insulation performance tests and molecular dynamics simulations, the influence of polar functional group types on the insulation performance of aramid fiber-epoxy resin composites was revealed. The results show that the flashover voltage of the modified AFEP has increased by 58.01% and the breakdown field strength has increased by 56.52%. Analysis suggests that different polarity treatments have different mechanisms for enhancing insulation performance. Among them, the amino group is achieved by enhancing the interface bonding between aramid fibers and epoxy resin, while the fluorine-containing groups improve the material’s ability to control charge distribution.
{"title":"Enhancing the insulation performance of aramid fiber epoxy resin by constructing a polar-nanofibrillation structure on the fiber surface","authors":"Guowei Xia, Jun Xie, Qiqiang Chen, Qikai Wang, Chengming Hu, Zhaohua Zhang, Qing Xie","doi":"10.1016/j.apsusc.2026.166204","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.166204","url":null,"abstract":"Aramid fiber, as a new generation of synthetic fiber material, has excellent insulation and mechanical properties and is widely used in high-voltage power transmission and transformation equipment. However, the problems of smooth surface and low chemical reactivity seriously restrict the combination with polymers and reduce the withstand voltage characteristics of insulation devices. Hence, this paper proposes to use aramid nanofibers (ANFs) obtained through nanofibrillation treatment to regulate the surface roughness of aramid fibers. Meanwhile, polar functional groups were introduced during the deprotonation process, successfully constructing polar-nanofibrillation structures on the aramid fiber surface, further regulating the polarity of fiber surfaces. Through insulation performance tests and molecular dynamics simulations, the influence of polar functional group types on the insulation performance of aramid fiber-epoxy resin composites was revealed. The results show that the flashover voltage of the modified AFEP has increased by 58.01% and the breakdown field strength has increased by 56.52%. Analysis suggests that different polarity treatments have different mechanisms for enhancing insulation performance. Among them, the amino group is achieved by enhancing the interface bonding between aramid fibers and epoxy resin, while the fluorine-containing groups improve the material’s ability to control charge distribution.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"23 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146138494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-08DOI: 10.1016/j.apsusc.2026.166266
Yongmei Xia, Zuming He, Qimin Chen, Liheng Liu, Gang He, Juan Zhang, Xiangming Zeng, Jiangbin Su, Guihua Chen, Xiaofei Fu, Bin Tang, Guoliang Dai
{"title":"Ethanol-induced synthesis of vacancy-free cobalt-based Prussian blue analogues with a flaky surface as high-performance cathode materials for sodium-ion batteries","authors":"Yongmei Xia, Zuming He, Qimin Chen, Liheng Liu, Gang He, Juan Zhang, Xiangming Zeng, Jiangbin Su, Guihua Chen, Xiaofei Fu, Bin Tang, Guoliang Dai","doi":"10.1016/j.apsusc.2026.166266","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.166266","url":null,"abstract":"","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"94 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146138502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-08DOI: 10.1016/j.apsusc.2026.166254
Qijing Sun, Yiwei Gao, Wei Wang, Yang Song, Jingwang Lv, Guoyang Zhang, Li Liu, Mengwei He, Yanyun Zhao, Xiangjin Zhao
Metallic glasses (MGs) have emerged as promising catalysts for environmental remediation and electrocatalysis owing to their intrinsic disordered structure and metastable nature that favor abundant active sites. However, achieving precise tuning of their nanoscale structural configurations to optimize photocatalytic performance remains a key challenge. Herein, by tuning the sputtering-induced structural heterogeneity, we construct a loosely packed and heterogeneous atomic arrangement with enlarged, isotropic, and well-dispersed liquid-like regions (LLRs) for the magnetron-sputtered Cu50Zr50 MG catalysts. This unique nanoscale structure not only promotes the exposure of surface metallic Cu active sites but also optimizes the interfacial electron transfer. Consequently, the engineered Cu50Zr50 MG catalyst exhibits accelerated ultraviolet–visible photocatalytic degradation of azo dyes with the essential dye degradation ability () reaching ∼8.19 L m−2 min−1 and simultaneously improved oxygen/hydrogen evolution reaction (OER/HER) activity compared to the counterpart. This work first utilizes amplitude-modulation dynamic atomic force microscopy to reveal the direct structure-interface-activity relationship in MG catalysts and establishes nanoscale heterogeneity engineering as a simple yet effective approach to design high-performance MG-based catalysts for environmental remediation
金属玻璃由于其固有的无序结构和亚稳性质，有利于丰富的活性位点，在环境修复和电催化方面具有广阔的应用前景。然而，实现纳米级结构配置的精确调整以优化光催化性能仍然是一个关键的挑战。本文通过调整溅射诱导的结构非均质性，为磁控溅射Cu50Zr50 MG催化剂构建了具有扩大、各向同性和分散良好的液相区（LLRs）的松散堆积和非均质原子排列。这种独特的纳米级结构不仅促进了表面金属Cu活性位点的暴露，而且优化了界面电子转移。因此，设计的Cu50Zr50 MG催化剂对偶氮染料的紫外-可见光催化降解速度加快，基本染料降解能力（kSAkSA）达到~ 8.19 L m−2 min−1，同时氧/氢析出反应（OER/HER）活性也有所提高。这项工作首次利用调幅动态原子力显微镜揭示了MG催化剂的直接结构-界面-活性关系，并建立了纳米尺度的非均质工程作为设计高性能MG基催化剂用于环境修复的简单而有效的方法
{"title":"Nanoscale structural heterogeneity tuning of sputtered CuZr metallic glass for superior azo dye photocatalytic degradation","authors":"Qijing Sun, Yiwei Gao, Wei Wang, Yang Song, Jingwang Lv, Guoyang Zhang, Li Liu, Mengwei He, Yanyun Zhao, Xiangjin Zhao","doi":"10.1016/j.apsusc.2026.166254","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.166254","url":null,"abstract":"Metallic glasses (MGs) have emerged as promising catalysts for environmental remediation and electrocatalysis owing to their intrinsic disordered structure and metastable nature that favor abundant active sites. However, achieving precise tuning of their nanoscale structural configurations to optimize photocatalytic performance remains a key challenge. Herein, by tuning the sputtering-induced structural heterogeneity, we construct a loosely packed and heterogeneous atomic arrangement with enlarged, isotropic, and well-dispersed liquid-like regions (LLRs) for the magnetron-sputtered Cu<sub>50</sub>Zr<sub>50</sub> MG catalysts. This unique nanoscale structure not only promotes the exposure of surface metallic Cu active sites but also optimizes the interfacial electron transfer. Consequently, the engineered Cu<sub>50</sub>Zr<sub>50</sub> MG catalyst exhibits accelerated ultraviolet–visible photocatalytic degradation of azo dyes with the essential dye degradation ability (<span><span style=\"\"></span><span data-mathml='<math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub is=\"true\"><mi is=\"true\">k</mi><mrow is=\"true\"><mi mathvariant=\"italic\" is=\"true\">SA</mi></mrow></msub></math>' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.317ex\" role=\"img\" style=\"vertical-align: -0.582ex;\" viewbox=\"0 -747.2 1586 997.6\" width=\"3.684ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><g is=\"true\"><use xlink:href=\"#MJMATHI-6B\"></use></g><g is=\"true\" transform=\"translate(521,-163)\"><g is=\"true\"><use transform=\"scale(0.707)\" xlink:href=\"#MJMATHI-53\"></use><use transform=\"scale(0.707)\" x=\"613\" xlink:href=\"#MJMATHI-41\" y=\"0\"></use></g></g></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><msub is=\"true\"><mi is=\"true\">k</mi><mrow is=\"true\"><mi is=\"true\" mathvariant=\"italic\">SA</mi></mrow></msub></math></span></span><script type=\"math/mml\"><math><msub is=\"true\"><mi is=\"true\">k</mi><mrow is=\"true\"><mi mathvariant=\"italic\" is=\"true\">SA</mi></mrow></msub></math></script></span>) reaching ∼8.19 L m<sup>−2</sup> min<sup>−1</sup> and simultaneously improved oxygen/hydrogen evolution reaction (OER/HER) activity compared to the counterpart. This work first utilizes amplitude-modulation dynamic atomic force microscopy to reveal the direct structure-interface-activity relationship in MG catalysts and establishes nanoscale heterogeneity engineering as a simple yet effective approach to design high-performance MG-based catalysts for environmental remediation","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"59 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146138496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-07DOI: 10.1016/j.apsusc.2026.166210
Qingsong Zhao, Guanglei Zhang, Shuai Yang, Zunbin Duan, Gang Yu
Filter supercapacitors (FSCs) have emerged as ideal candidates to replace traditional aluminum electrolytic capacitors due to their superior power characteristics and rapid charge–discharge capabilities, offering a critical solution for the miniaturization and integration of electronic devices. However, their further development has been hindered by the inherent trade-off between the charge–discharge rate and charge storage capacity of electrode materials. This study proposes an innovative composite electrode design strategy, successfully constructing a three-dimensional reduced graphene oxide aerogel film skeleton with high electronic conductivity through a mild thermochemical reduction method. The oxygen-containing functional groups retained on its surface enhance the ion charge transport rate, ultimately achieving a coordinated optimization of electronic and ionic conductivity. Meanwhile, the surface-loaded, highly electrochemically active CuxO nanoparticles synergistically boost the capacitance density of this integrated composite electrode. The FSC based on these electrodes demonstrates outstanding frequency response at a high frequency of 120 Hz: a phase angle of −80.04°, and a remarkable areal capacitance of 3.24 mF cm−2. This study not only significantly advances the performance boundaries of FSCs in balancing frequency response and capacitance density but also provides innovative theoretical guidance and technical solutions for the electrode structure design of next-generation miniaturized FSCs.
{"title":"High-performance filter supercapacitors utilizing graphene aerogel composite thin-film electrodes","authors":"Qingsong Zhao, Guanglei Zhang, Shuai Yang, Zunbin Duan, Gang Yu","doi":"10.1016/j.apsusc.2026.166210","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.166210","url":null,"abstract":"Filter supercapacitors (FSCs) have emerged as ideal candidates to replace traditional aluminum electrolytic capacitors due to their superior power characteristics and rapid charge–discharge capabilities, offering a critical solution for the miniaturization and integration of electronic devices. However, their further development has been hindered by the inherent trade-off between the charge–discharge rate and charge storage capacity of electrode materials. This study proposes an innovative composite electrode design strategy, successfully constructing a three-dimensional reduced graphene oxide aerogel film skeleton with high electronic conductivity through a mild thermochemical reduction method. The oxygen-containing functional groups retained on its surface enhance the ion charge transport rate, ultimately achieving a coordinated optimization of electronic and ionic conductivity. Meanwhile, the surface-loaded, highly electrochemically active Cu<em><sub>x</sub></em>O nanoparticles synergistically boost the capacitance density of this integrated composite electrode. The FSC based on these electrodes demonstrates outstanding frequency response at a high frequency of 120 Hz: a phase angle of −80.04°, and a remarkable areal capacitance of 3.24 mF cm<sup>−2</sup>. This study not only significantly advances the performance boundaries of FSCs in balancing frequency response and capacitance density but also provides innovative theoretical guidance and technical solutions for the electrode structure design of next-generation miniaturized FSCs.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"26 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-07DOI: 10.1016/j.apsusc.2026.166239
Mario Garcia-Lechuga, Yoann Levy, Irene Solana, Fátima Cabello, María Dolores Ynsa, Nadezhda M. Bulgakova
Femtosecond laser modification of fused silica enables precise surface tailoring for the fabrication of micro-optical components such as microlenses and diffractive elements. However, the process is governed by laser–matter interactions where the local fluence determines the processing depth, often limiting control over feature geometry and efficiency. Here, we present a hybrid approach combining localized Au implantation (1.8 MeV Au2+ ions) into SiO2 samples with femtosecond laser irradiation (250 fs), effectively tuning the laser–matter interaction and resulting morphology. At both 515 nm and 1030 nm irradiation wavelengths, single-shot femtosecond pulses produce cylindrical craters with sharp edges and flat-bottom profiles. Independently of the fluence, these craters exhibit a constant depth of 550 nm, corresponding to the region of maximum Au concentration. The effect manifests already at moderate fluence (∼4 J/cm2) and yields high ablation efficiency, up to 15 µm3/µJ. The hybrid method also works effectively at lower implantation doses that preserve the excellent transmission of fused silica, offering a promising pathway for the high-quality fabrication of flat optical components such as binary phase masks, phase lenses, or fused-silica micromolds.
{"title":"Hybrid femtosecond laser and ion-implantation processing for controlled, deep, high-efficiency ablation in fused silica","authors":"Mario Garcia-Lechuga, Yoann Levy, Irene Solana, Fátima Cabello, María Dolores Ynsa, Nadezhda M. Bulgakova","doi":"10.1016/j.apsusc.2026.166239","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.166239","url":null,"abstract":"Femtosecond laser modification of fused silica enables precise surface tailoring for the fabrication of micro-optical components such as microlenses and diffractive elements. However, the process is governed by laser–matter interactions where the local fluence determines the processing depth, often limiting control over feature geometry and efficiency. Here, we present a hybrid approach combining localized Au implantation (1.8 MeV Au<sup>2+</sup> ions) into SiO<sub>2</sub> samples with femtosecond laser irradiation (250 fs), effectively tuning the laser–matter interaction and resulting morphology. At both 515 nm and 1030 nm irradiation wavelengths, single-shot femtosecond pulses produce cylindrical craters with sharp edges and flat-bottom profiles. Independently of the fluence, these craters exhibit a constant depth of 550 nm, corresponding to the region of maximum Au concentration. The effect manifests already at moderate fluence (∼4 J/cm<sup>2</sup>) and yields high ablation efficiency, up to 15 µm<sup>3</sup>/µJ. The hybrid method also works effectively at lower implantation doses that preserve the excellent transmission of fused silica, offering a promising pathway for the high-quality fabrication of flat optical components such as binary phase masks, phase lenses, or fused-silica micromolds.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"92 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-07DOI: 10.1016/j.apsusc.2026.166223
Hyun Jin Kim, Jeong Ho Na, Haeseong Jang, Jin-Sung Park, Seung-Keun Park
{"title":"Hierarchically porous flower-like N-doped carbon spheres engineered via KOH activation for high Se loading in K–Se batteries","authors":"Hyun Jin Kim, Jeong Ho Na, Haeseong Jang, Jin-Sung Park, Seung-Keun Park","doi":"10.1016/j.apsusc.2026.166223","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.166223","url":null,"abstract":"","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"110 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-07DOI: 10.1016/j.apsusc.2026.166177
Zhaokai Yao, Huitao Guo, Hong Zeng, Fangping Wang, Qi Sun, Lin Bai, Rongshan Zhou, Qingquan Xiao, Xu Li, Li Zhang, Guifen Fan, Fangfang Zeng, Qibin Liu
BiFeO3-BaTiO3-based lead-free piezoceramics have recently gained significant attention owing to their high Curie temperature. To enhance electrostrain, various strategies have been explored—such as introducing a third element and constructing defect dipoles. However, while defect engineering efforts have predominantly focused on A-site defect dipoles for electrostrain improvement, research targeting B-site defects remains notably scarce. Therefore, in the work, a novel 0.7BiFexO3-0.3BaTiO3 systems with a low sintering temperature (at 840 ℃) and a high Curie temperature (>500 ℃) has been successfully prepared. In this system, defect dipoles are built by reducing Fe3+ content. The electorstrain in the aged sample has been increased by 132% (at 45 kV/cm) than that of the virgin sample, attributed to the formation of a built-in electric field, which facilitates non-180° domain switching along some electric field direction. Defect dipoles are explored in depth, and the domain configuration is carefully studied by TEM and PFM. This study provides crucial insights for designing eco-friendly, high-performance lead-free piezoelectric ceramics.
{"title":"Defect engineering enables low-temperature synthesis of BF-BT piezoceramics with enhanced electric field-induced strain","authors":"Zhaokai Yao, Huitao Guo, Hong Zeng, Fangping Wang, Qi Sun, Lin Bai, Rongshan Zhou, Qingquan Xiao, Xu Li, Li Zhang, Guifen Fan, Fangfang Zeng, Qibin Liu","doi":"10.1016/j.apsusc.2026.166177","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.166177","url":null,"abstract":"BiFeO<sub>3</sub>-BaTiO<sub>3</sub>-based lead-free piezoceramics have recently gained significant attention owing to their high Curie temperature. To enhance electrostrain, various strategies have been explored—such as introducing a third element and constructing defect dipoles. However, while defect engineering efforts have predominantly focused on<!-- --> <!-- -->A-site<!-- --> <!-- -->defect dipoles for electrostrain improvement, research targeting<!-- --> <!-- -->B-site<!-- --> <!-- -->defects remains notably scarce. Therefore, in the work, a novel 0.7BiFe<em><sub>x</sub></em>O<sub>3</sub>-0.3BaTiO<sub>3</sub> systems with a low sintering temperature (at 840 ℃) and a high Curie temperature (>500 ℃) has been successfully prepared. In this system, defect dipoles are built by reducing Fe<sup>3+</sup> content. The electorstrain in the aged sample has been increased by 132% (at 45 kV/cm) than that of the virgin sample, attributed to the formation of a built-in electric field, which facilitates non-180° domain switching along some electric field direction. Defect dipoles are explored in depth, and the domain configuration is carefully studied by TEM and PFM. This study provides crucial insights for designing eco-friendly, high-performance lead-free piezoelectric ceramics.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"288 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146129499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-07DOI: 10.1016/j.apsusc.2026.166211
Min Ling, Yuan-Sheng Cheng, Yi-Fei Huang, Ziqing Xu, Konglin Wu, Dongdong Liu, Pan Pan, Ju Wu
The photocatalytic hydrogenolysis of lignin-derived β-O-4 linkages offers a sustainable pathway to aromatic chemicals; however, its efficiency is often hindered by sluggish proton transfer and competing hydrogen evolution. Herein, we present a synergistic strategy to enhance the hydrogenolysis of 2-phenoxy-1-phenylethanone (PP-one) by coupling the oxidative dehydrogenation of 1-phenylethanol (1-Pol) with water splitting over metal sulfide-decorated, sulfur vacancy-rich ZnIn2S4 (M-ZIS-V). Among the catalysts prepared, the optimal 1% Ag-ZIS-V catalyst exhibits the highest PP-one hydrogenolysis activity, achieving a phenol generation rate of 1002.7 μmol g−1 h−1. Experimental and theoretical analyses demonstrate that the introduced metal sulfides, particularly Ag2S, not only facilitates electron extraction from ZIS but also promotes PP-one activation by lowering the C-O bond cleavage barrier, directing the reaction pathway toward hydrogenolysis rather than H2 evolution. This work provides fundamental insights for designing photocatalytic lignin valorization systems and paves the way for developing advanced cocatalysts through rational site engineering.
{"title":"Boosting lignin β-O-4 ketone models hydrogenolysis via a dual-reaction photocatalytic system over co-catalyst decorated sulfur vacancy-rich ZnIn2S4","authors":"Min Ling, Yuan-Sheng Cheng, Yi-Fei Huang, Ziqing Xu, Konglin Wu, Dongdong Liu, Pan Pan, Ju Wu","doi":"10.1016/j.apsusc.2026.166211","DOIUrl":"https://doi.org/10.1016/j.apsusc.2026.166211","url":null,"abstract":"The photocatalytic hydrogenolysis of lignin-derived β-O-4 linkages offers a sustainable pathway to aromatic chemicals; however, its efficiency is often hindered by sluggish proton transfer and competing hydrogen evolution. Herein, we present a synergistic strategy to enhance the hydrogenolysis of 2-phenoxy-1-phenylethanone (PP-one) by coupling the oxidative dehydrogenation of 1-phenylethanol (1-Pol) with water splitting over metal sulfide-decorated, sulfur vacancy-rich ZnIn<sub>2</sub>S<sub>4</sub> (M-ZIS-V). Among the catalysts prepared, the optimal 1% Ag-ZIS-V catalyst exhibits the highest PP-one hydrogenolysis activity, achieving a phenol generation rate of 1002.7 μmol g<sup>−1</sup> h<sup>−1</sup>. Experimental and theoretical analyses demonstrate that the introduced metal sulfides, particularly Ag<sub>2</sub>S, not only facilitates electron extraction from ZIS but also promotes PP-one activation by lowering the C-O bond cleavage barrier, directing the reaction pathway toward hydrogenolysis rather than H<sub>2</sub> evolution. This work provides fundamental insights for designing photocatalytic lignin valorization systems and paves the way for developing advanced cocatalysts through rational site engineering.","PeriodicalId":247,"journal":{"name":"Applied Surface Science","volume":"30 1","pages":""},"PeriodicalIF":6.7,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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