Journal of Colloid and Interface Science最新文献

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A photothermal MXene-derived heterojunction for boosted CO2 reduction and tunable CH4 selectivity. 光热mxene衍生异质结促进CO2还原和可调CH4选择性。
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-04-01 Epub Date: 2024-12-16 DOI: 10.1016/j.jcis.2024.12.108
Yixiang Zhao, Zhen Wang, Weirui Chen, Xi Wang, Yiming Tang, Laisheng Li, Jing Wang
{"title":"A photothermal MXene-derived heterojunction for boosted CO<sub>2</sub> reduction and tunable CH<sub>4</sub> selectivity.","authors":"Yixiang Zhao, Zhen Wang, Weirui Chen, Xi Wang, Yiming Tang, Laisheng Li, Jing Wang","doi":"10.1016/j.jcis.2024.12.108","DOIUrl":"10.1016/j.jcis.2024.12.108","url":null,"abstract":"<p><p>We report here a Bi<sub>2</sub>WO<sub>6</sub>/Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub>@Ag (BT@Ag) photothermal photocatalyst for efficient CO<sub>2</sub> reduction with tunable CH<sub>4</sub> selectivity. Incorporation of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> MXene creates well-defined heterointerfaces between Bi<sub>2</sub>WO<sub>6</sub> and Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> and converts thermal energy upon light illumination via photothermal effect, which contributes to a mitigation of the recombination of photo-induced charge carries for a high electron mobility. Density functional theory calculations substantiate that Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> functions as the adsorption site and active center where the transferred electrons are effectively involved in CO<sub>2</sub> reduction for enhanced CH<sub>4</sub> selectivity. Moreover, the in situ deposited Ag nanoparticles demonstrate an exceptional surface plasmon resonance effect, giving rise to additional hot electrons that further benefits the CH<sub>4</sub> generation.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"934-941"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Operando bonding nickel thiolate with CdS as efficient photocatalyst for hydrogen evolution. 硫代镍与CdS键合作为高效析氢光催化剂。
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-04-01 Epub Date: 2024-12-20 DOI: 10.1016/j.jcis.2024.12.141
Rui Chen, Xueting Niu, Wangxuan Li, Hou Li, Yulin Li, Qingwen Han, Wanggang Fang, Liqing He, Huiping Zhao, Fan Tian
{"title":"Operando bonding nickel thiolate with CdS as efficient photocatalyst for hydrogen evolution.","authors":"Rui Chen, Xueting Niu, Wangxuan Li, Hou Li, Yulin Li, Qingwen Han, Wanggang Fang, Liqing He, Huiping Zhao, Fan Tian","doi":"10.1016/j.jcis.2024.12.141","DOIUrl":"10.1016/j.jcis.2024.12.141","url":null,"abstract":"<p><p>Employing metallic nanoclusters as cocatalysts for semiconductor-based photocatalysts and understanding their roles in enhancing photocatalytic performance is crucial. Herein, a nickel thiolate with cyclohexanethiol as the ligands (i.e. Ni<sub>4</sub>(S-cy)<sub>8</sub>, cy = cyclohexyl) was synthesized and developed as the cocatalyst for CdS to promote its photocatalytic activity for hydrogen evolution. With a 5 wt% cluster loading, the obtained samples achieve a hydrogen evolution efficiency of approximately 106 mmol g<sub>cat</sub><sup>-1</sup> h<sup>-1</sup> under visible light irradiation, which is five times higher than that of pure CdS. The enhanced catalytic activity is attributed to the removal of ligands from the nickel clusters during photocatalysis, which allows the nickel clusters to embed themselves onto the CdS surface through Ni-S bond interactions. This process generates nickel species on the CdS surface, facilitating the generation and separation of photoinduced electron-hole pairs and thereby enhancing photocatalytic performance. This work highlights the importance of the dynamic evolution of nanoclusters during catalysis and demonstrates the potential of leveraging catalytically inert species to form highly efficient component for photocatalysis.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"942-953"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
3D cross-linked structure of dual-active site CoMoO4 nanosheets@graphite felt electrode for vanadium redox flow battery. 双活性位点CoMoO4 nanosheets@graphite钒氧化还原液流电池毛毡电极的三维交联结构。
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-04-01 Epub Date: 2024-12-12 DOI: 10.1016/j.jcis.2024.12.079
Tukang Cheng, Shaotian Qi, Yingqiao Jiang, Zemin Feng, Long Jiang, Wei Meng, Jing Zhu, Lei Dai, Ling Wang, Zhangxing He
{"title":"3D cross-linked structure of dual-active site CoMoO<sub>4</sub> nanosheets@graphite felt electrode for vanadium redox flow battery.","authors":"Tukang Cheng, Shaotian Qi, Yingqiao Jiang, Zemin Feng, Long Jiang, Wei Meng, Jing Zhu, Lei Dai, Ling Wang, Zhangxing He","doi":"10.1016/j.jcis.2024.12.079","DOIUrl":"10.1016/j.jcis.2024.12.079","url":null,"abstract":"<p><p>Transition metal oxides (TMOs) can accelerate the sluggish kinetics of vanadium redox reaction, but face challenges like limited active sites and difficulties in nanometerization, highlighting the urgent need for new TMO electrocatalysts for vanadium redox flow battery (VRFB). CoMoO<sub>4</sub> features high electrochemical activity, numerous redox sites, flexible control, and short electron pathways. Herein, a high catalytic and super stable graphite felt electrode modified in situ with network cross-linking CoMoO<sub>4</sub> nanosheets (CoMoO<sub>4</sub>@GF) was prepared via hydrothermal and heat treatment method to enhance VRFB performance. CoMoO<sub>4</sub>@GF have large specific surface area, super hydrophilicity, and abundant reaction places, possessing well mass transfer, low charge transfer resistance, and sufficient catalytic sites. Therefore, the composite electrodes exhibit great electrocatalytic activity towards VO<sup>2+</sup>/VO<sub>2</sub><sup>+</sup> and V<sup>3+</sup>/V<sup>2+</sup> redox reactions and excellent stability for VRFB. At 200 mA cm<sup>-2</sup>, the energy efficiency (EE) of the CoMoO<sub>4</sub>@GF modified VRFB improved by 19.14 % over the blank VRFB with pristine graphite felt, and remained cycle stable after 350 cycles at 150 mA cm<sup>-2</sup>. This work not only enriches the types of TMOs catalysts in VRFB, but also opens up a new direction for the research of bimetallic TMOs.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"713-721"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Probing the synergistic effect of metal-organic framework derived Co-Nx rich interwoven hierarchical porous carbon tube encapsulated dual redox active nanoalloy for high-performance Zn-air battery and supercapacitor applications. 探索金属有机骨架衍生的富Co-Nx交织层叠多孔碳管封装双氧化还原活性纳米合金在高性能锌空气电池和超级电容器中的协同效应。
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-04-01 Epub Date: 2024-12-18 DOI: 10.1016/j.jcis.2024.12.105
Srijib Das, Shraban Dey, Ujjwal Phadikar, Haradhan Kolya, Chun-Won Kang, Naresh Chandra Murmu, Tapas Kuila, Aniruddha Kundu
{"title":"Probing the synergistic effect of metal-organic framework derived Co-Nx rich interwoven hierarchical porous carbon tube encapsulated dual redox active nanoalloy for high-performance Zn-air battery and supercapacitor applications.","authors":"Srijib Das, Shraban Dey, Ujjwal Phadikar, Haradhan Kolya, Chun-Won Kang, Naresh Chandra Murmu, Tapas Kuila, Aniruddha Kundu","doi":"10.1016/j.jcis.2024.12.105","DOIUrl":"10.1016/j.jcis.2024.12.105","url":null,"abstract":"<p><p>Rechargeable zinc-air batteries (ZABs) with high-performance and stability is desirable for encouraging the transition of the technology from academia to industries. However, achieving this balance remains a formidable challenge, primarily due to the requirement of robust, earth-abundant reversible oxygen electrocatalyst. The present study introduces a simple strategy to synthesize Co-N<sub>x</sub> rich nanoalloy with N-doped porous carbon tubes (NiCo@NPCTs). The optimized catalyst is bestowed with high electrochemical surface area, and three dimensional (3D) interwoven N-doped PCTs. Moreover, the presence of dual redox-active sites synergistically promotes rapid mass/charge transfer for oxygen electrocatalysis. These features offer excellent reversibility for oxygen electrocatalysis with a reversible oxygen potential gap (ΔE) of 0.74 V. The NiCo@NPCTs is utilized as an air-electrode for designing ZABs and using the same electrode-material asymmetric supercapacitor device (ASC) is fabricated. The assembled ZAB delivers an impressive peak power density of 298 mW cm<sup>-2</sup> and specific capacity of 731mAh g<sup>-1</sup> at 50 mA cm<sup>-2</sup>, along with high rate-capability, durable round-trip voltaic-efficiency. The as-fabricated ASC also shows exciting performance with negligible fading in capacitance and columbic efficiency after 10,000 continuous charge-discharge cycles at a 10 A/g current density. In addition, ZAB-ASC integrated device is assembled, showing real-time application. Thus, the synthesized electrode-material holds great promise for electrocatalysis and also for diverse energy storage applications.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"818-832"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Aqueous high-energy-density capacitor with 2 V output voltage for alternating current line filtering 输出电压为 2 V 的水基高能量密度电容器,用于交流线路滤波
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-04-01 DOI: 10.1016/j.jcis.2025.137496
Lixia Wang , Wenbo Gao , Xiangrong Li , Xianfu Zheng , Xin Li , Xia Sheng , Yanyan Liu , Meirong Song
{"title":"Aqueous high-energy-density capacitor with 2 V output voltage for alternating current line filtering","authors":"Lixia Wang ,&nbsp;Wenbo Gao ,&nbsp;Xiangrong Li ,&nbsp;Xianfu Zheng ,&nbsp;Xin Li ,&nbsp;Xia Sheng ,&nbsp;Yanyan Liu ,&nbsp;Meirong Song","doi":"10.1016/j.jcis.2025.137496","DOIUrl":"10.1016/j.jcis.2025.137496","url":null,"abstract":"<div><div>High-energy-density aqueous filtering capacitors are essential for the conversion of alternating current to direct current in contemporary integrated circuits. Yet their energy density is limited by the 1.23 V decomposition voltage of water. Here, we report an asymmetric electrolyte configuration to effectively suppress water decomposition activity, enabling the development of an aqueous filtering capacitor with a 2 V operating voltage, as well as an ultrahigh areal specific energy density of 4.51 ± 0.26 mF V<sup>2</sup> cm<sup>−2</sup> (1.25 ± 0.07 μWh cm<sup>−2</sup>) at 120 Hz. This significant energy density value surpasses most reported filtering capacitors with a comparable phase angle of −(75.0 ± 1.0)° (Chi et al., 2017; Park et al., 2021; Zhang et al., 2022). Additionally, the capacitor presents outstanding cycling stability with a capacitance retention of 97.9 % after 200,000 cycles. Furthermore, we employ an alternatingly stacked assembly technique to conveniently construct compact and lossless integrated filtering capacitors, enabling efficient alternating current output smoothing from wind generator and ensuring stable power supply for light-controlled circuit. This work substantially advances line filtering electrochemical capacitors toward application in modern circuits.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"692 ","pages":"Article 137496"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143776928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of surface engineering on the transport properties of lead sulfide nanomaterials. 表面工程对硫化铅纳米材料输运性能的影响。
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-04-01 Epub Date: 2024-12-10 DOI: 10.1016/j.jcis.2024.12.067
Haibo Shu, Mingjun Zhao, Shaoqing Lu, Shanhong Wan, Aziz Genç, Lulu Huang, Maria Ibáñez, Khak Ho Lim, Min Hong, Yu Liu
{"title":"Influence of surface engineering on the transport properties of lead sulfide nanomaterials.","authors":"Haibo Shu, Mingjun Zhao, Shaoqing Lu, Shanhong Wan, Aziz Genç, Lulu Huang, Maria Ibáñez, Khak Ho Lim, Min Hong, Yu Liu","doi":"10.1016/j.jcis.2024.12.067","DOIUrl":"10.1016/j.jcis.2024.12.067","url":null,"abstract":"<p><p>Lead Sulfide (PbS) has garnered attention as a promising thermoelectric (TE) material due to its natural abundance and cost-effectiveness. However, its practical application is hindered by inherently high lattice thermal conductivity and low electrical conductivity. In this study, we address these challenges by surface functionalization of PbS nanocrystals using Cu<sub>2</sub>S molecular complexes-based ligand displacement. The molecular complexes facilitate the incorporation of Cu into the PbS matrix and leads to the formation of nanoscale defects, dislocations, and strain fields while optimizing the charge carrier transport. The structural modulations enhance the phonon scattering and lead to a significant reduction in lattice thermal conductivity of 0.60 W m<sup>-1</sup>K<sup>-1</sup> at 867 K in the PbS-Cu<sub>2</sub>S system. Simultaneously, the Cu incorporation improves electrical conductivity by increasing both carrier concentration and mobility with carefully optimized the content of Cu<sub>2</sub>S molecular complexes. These synergistic modifications yield a peak figure-of-merit (zT) of 1.05 at 867 K for the PbS-1.0 %Cu<sub>2</sub>S sample, representing an almost twofold enhancement in TE performance compared to pristine PbS. This work highlights the effectiveness of surface treatment in overcoming the intrinsic limitations of PbS-based materials and presents a promising strategy for the development of high-efficiency TE systems.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"703-712"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highly efficient and conductive in-situ assembled VS4-VO2 on reduced Graphene-oxide as advanced cathode materials for thermal batteries. 在还原氧化石墨烯上原位组装高效导电的v4 - vo2作为热电池的先进正极材料。
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-04-01 Epub Date: 2024-12-20 DOI: 10.1016/j.jcis.2024.12.134
Xin-Ya Bu, Yan-Li Zhu, Yu Xia, Bin-Chao Shi, Shu Zhang, Xiao-Yu Wei, Jing Luo, Yi Zhang, Ting Quan
{"title":"Highly efficient and conductive in-situ assembled VS<sub>4</sub>-VO<sub>2</sub> on reduced Graphene-oxide as advanced cathode materials for thermal batteries.","authors":"Xin-Ya Bu, Yan-Li Zhu, Yu Xia, Bin-Chao Shi, Shu Zhang, Xiao-Yu Wei, Jing Luo, Yi Zhang, Ting Quan","doi":"10.1016/j.jcis.2024.12.134","DOIUrl":"10.1016/j.jcis.2024.12.134","url":null,"abstract":"<p><p>Thermal batteries are a type of thermally activated reserve batteries, where the cathode material significantly influences the operating voltage and specific capacity of the battery. In this work, VS<sub>4</sub>-VO<sub>2</sub> has been synthesized through the hydrothermal method and used as the cathode material for thermal batteries. Firstly, the material with the VS<sub>4</sub> crystallinity is obtained at 170 °C and the mass percentages of VS<sub>4</sub>/VO<sub>2</sub> are 63.1 % and 36.9 %, respectively. The formation mechanism of VS<sub>4</sub>-VO<sub>2</sub> has been proposed based on in-situ ultraviolet (UV) spectrum, which shows that the hydrolysis product S<sup>2-</sup> under alkaline conditions promotes the formation of VS<sub>4</sub>. To further improve the conductivity of the material, the reduced graphene oxide (rGO) has been introduced into VS<sub>4</sub>-VO<sub>2</sub> nanomaterials. When applied in thermal batteries, the rGO-VS<sub>4</sub>-VO<sub>2</sub> composite exhibits a voltage plateau of approximately 2.4 V and a discharging specific capacity of 327 mAh/g with the cut-off voltage of 1.5 V at 50 mA and 350°C, which are higher than those of VS<sub>4</sub>-VO<sub>2</sub>. Furthermore, the discharge mechanisms of rGO-VS<sub>4</sub>-VO<sub>2</sub> in thermal batteries have been analyzed, which indicates that VS<sub>4</sub>-VO<sub>2</sub> involves two processes of phase transformation, including the intercalation process and conversion process. The results confirm rGO-VS<sub>4</sub>-VO<sub>2</sub> as a promising cathode material for thermal batteries.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"973-983"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142880810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multifunctional role of gallium-doping in O3-type layered-oxide cathodes for sodium-ion batteries: Enhancing bulk-to-surface stability
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-03-31 DOI: 10.1016/j.jcis.2025.137484
Weiliang Li , Guohu Chen , Guangpeng He , Junzhou Xie , Dan Liang , Shiming Qiu , Chunliu Li , Wenwei Wu , Xuehang Wu
{"title":"Multifunctional role of gallium-doping in O3-type layered-oxide cathodes for sodium-ion batteries: Enhancing bulk-to-surface stability","authors":"Weiliang Li ,&nbsp;Guohu Chen ,&nbsp;Guangpeng He ,&nbsp;Junzhou Xie ,&nbsp;Dan Liang ,&nbsp;Shiming Qiu ,&nbsp;Chunliu Li ,&nbsp;Wenwei Wu ,&nbsp;Xuehang Wu","doi":"10.1016/j.jcis.2025.137484","DOIUrl":"10.1016/j.jcis.2025.137484","url":null,"abstract":"<div><div>Charging O3-type layered-oxide cathodes to a high cutoff voltage of 4.3 V (vs. Na<sup>+</sup>/Na) can enhance the energy density of sodium-ion batteries (SIBs). However, the irreversible oxygen redox reaction at high voltages often leads accelerated capacity degradation. Herein, a series of Ga<sup>3+</sup>-doped O3-type Na<sub>0.9</sub>Zn<sub>0.07</sub>Ni<sub>0.38–0.5x</sub>Ga<sub>x</sub>Mn<sub>0.45–0.5x</sub>Ti<sub>0.1</sub>O<sub>2</sub> cathode materials are prepared, and the impact of Ga<sup>3+</sup> doping on their bulk/interface properties and electrochemical performance is systematically examined. Ga<sup>3+</sup> incorporation enhances the structural ordering of the layered framework and widens Na<sup>+</sup> transport pathways, thereby reducing Na<sup>+</sup> transport barrier. The Ga<sup>3+</sup>-doped material demonstrates superior structural reversibility and mechanical stability compared to the pristine counterpart during cycling. As evidenced by the density functional theory calculations, Ga<sup>3+</sup> doping modulates the O 2p state near the Fermi level, mitigating the charge compensation mechanism of lattice oxygen, oxygen vacancy formation, and electrolyte decomposition at high voltages. Consequently, within the voltage range of 2.2–4.3 V, Na<sub>0.9</sub>Zn<sub>0.07</sub>Ni<sub>0.35</sub>Ga<sub>0.06</sub>Mn<sub>0.42</sub>Ti<sub>0.1</sub>O<sub>2</sub> exhibits a higher capacity retention after 100 cycles at 100 mA g<sup>−1</sup> (86.4 % vs. 68.1 %) and better rate capability at 2000 mA g<sup>−1</sup> (94.1 mAh g<sup>−1</sup> vs. 80.0 mAh g<sup>−1</sup>) than Na<sub>0.9</sub>Zn<sub>0.07</sub>Ni<sub>0.38</sub>Mn<sub>0.45</sub>Ti<sub>0.1</sub>O<sub>2</sub>. This work provides valuable insights into the role of Ga<sup>3+</sup> in high-voltage O3-type layered oxides and offers guidance for the design of high-entropy cathode materials for SIBs.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"692 ","pages":"Article 137484"},"PeriodicalIF":9.4,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanistic insights into the impact of bromide ion adsorption and surface bromination on Cu2O for enhanced selectivity and activity in electrochemical CO2 reduction
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-03-31 DOI: 10.1016/j.jcis.2025.137492
Zhenli Lv , Guorui Ma , Haiqiang Mu , Jiaxing Guo , Min Zhu , Jing Li , Feng Li
{"title":"Mechanistic insights into the impact of bromide ion adsorption and surface bromination on Cu2O for enhanced selectivity and activity in electrochemical CO2 reduction","authors":"Zhenli Lv ,&nbsp;Guorui Ma ,&nbsp;Haiqiang Mu ,&nbsp;Jiaxing Guo ,&nbsp;Min Zhu ,&nbsp;Jing Li ,&nbsp;Feng Li","doi":"10.1016/j.jcis.2025.137492","DOIUrl":"10.1016/j.jcis.2025.137492","url":null,"abstract":"<div><div>The enhanced selectivity for C<sub>2+</sub> products in the electrochemical CO<sub>2</sub> reduction reaction (ECO<sub>2</sub>RR) is critically dependent on the regulation of the elemental existence state on the surface of the electrocatalyst. In this study, Cu<sub>2</sub>O nanowires featuring multiple grain boundaries were successfully synthesized. Two distinct model catalysts were prepared: one through surface adsorption of Br<sup>−</sup> (denoted as Cu<sub>2</sub>O_Br) and the other via surface bromination (denoted as Cu<sub>2</sub>O@CuBr). These models were employed to systematically investigate the influence of the differences between Br<sup>−</sup> adsorption on the Cu<sub>2</sub>O surface and surface bromination on activity and product selectivity. The integration of in-situ characterization techniques with electrochemical measurements revealed that Br<sup>−</sup> adsorption induces a stable charge distribution on the catalyst surface, accompanied by a consistent potential drop within the double layer. This signifies stable and efficient processes of CO<sub>2</sub> adsorption, electron transfer, and mass transfer at the electrode/electrolyte interface. Under these conditions, Cu<sub>2</sub>O_Br exhibits high stability. In contrast, catalyst surfaces modified via surface bromination are prone to Br<sup>−</sup> dissolution during electrolysis, leading to structural changes and significant surface reconstruction, which ultimately compromise the catalyst’s selectivity. Notably, the Cu<sub>2</sub>O_Br catalyst achieved a maximum Faradaic efficiency (FE) of 98 % for CO production at −0.4 V vs. RHE and 42 % for C<sub>2</sub>H<sub>6</sub> production at −0.6 V vs. RHE. Additionally, the Cu<sub>2</sub>O_Br catalyst reached an optimal FE<sub>C2+</sub> of 60 % at −0.6 V, which is 1.5 times higher than that of the pure Cu<sub>2</sub>O catalyst under the same potential and 2.5 times higher than that of the Cu<sub>2</sub>O@CuBr catalyst at −0.9 V. This work provides new insights into enhancing the selectivity and activity of carbon dioxide electroreduction by modulating halide ion adsorption on the catalyst surface and surface halogenation.</div></div>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"692 ","pages":"Article 137492"},"PeriodicalIF":9.4,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143768372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhancement of carbon monoxide catalytic oxidation performance by co-doping silver and cerium in three-dimensionally ordered macroporous Co-based catalyst
IF 9.4 1区 化学
Journal of Colloid and Interface Science Pub Date : 2025-03-31 DOI: 10.1016/j.jcis.2025.137483
Bing Cui, Miaomiao Hu, Kun Zhou, Yuanjun Li, Tingyi Zhao, Menglan Xiao, Zhihui Shao, Mingqin Zhao
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