Journal of Colloid and Interface Science最新文献

Molten salt synthesis of 1T phase dominated O-MoS₂ for enhancing photocatalytic hydrogen production performance of CdS via Ohmic junction.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-15 Epub Date: 2025-02-07 DOI: 10.1016/j.jcis.2025.01.183

Fangjie Xi, Leilei Zhang, Anying Cheng, Hua Sun, Yibo Qin, Baocheng Yang, Shouren Zhang, Junying Ma, Xiaoqiang Du, Xiangyu Meng

{"title":"Molten salt synthesis of 1T phase dominated O-MoS2 for enhancing photocatalytic hydrogen production performance of CdS via Ohmic junction.","authors":"Fangjie Xi, Leilei Zhang, Anying Cheng, Hua Sun, Yibo Qin, Baocheng Yang, Shouren Zhang, Junying Ma, Xiaoqiang Du, Xiangyu Meng","doi":"10.1016/j.jcis.2025.01.183","DOIUrl":"10.1016/j.jcis.2025.01.183","url":null,"abstract":"In photocatalysis, establishing an Ohmic junction could create an internal electric field between semiconductors and cocatalysts [1,2], effectively enhancing the transfer of photogenerated electrons. In this study, the 1T phase dominated oxygen atom doped MoS2 cocatalyst (O-MoS2), synthesized from KSCN molten salt with in-situ oxidation for the first time, is combined with CdS for boosting photocatalytic hydrogen production. In the hybrid photocatalyst, electrons could be efficiently extracted from CdS to O-MoS2 due to the presence of Ohmic contact, thereby significantly enhancing the utilization of photogenerated electrons and the photocatalytic hydrogen evolution performance. The results demonstrate that an initial hydrogen evolution rate of 532.8 μmol-1 could be achieved for CdS with the optimum loading amount of O-MoS2 (CdS-5), 26.6 times higher than that of CdS alone. Additionally, CdS-5 exhibits an apparent quantum yield (AQY) of 80.4 % at 420 nm. The increased photocatalytic performance of CdS-5 is primarily attributed to the efficient electron transfer (ET) process between the CdS and O-MoS2 in the presence of Ohmic junction, which accelerates the separation of the photogenerated carriers from CdS. It is strongly confirmed by the (photo)electrochemical experiments, steady-state/time-resolved photoluminescence (PL) spectra, Kelvin probe force microscope (KPFM), femtosecond transient absorption spectra (fs-TAS) and Density functional theory (DFT) calculation.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"686 ","pages":"1230-1240"},"PeriodicalIF":9.4,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143447679","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

Enhanced photocatalytic H₂O₂ production via a facile atomic diffusion strategy near tammann temperature for single atom photocatalysts. 通过单原子光催化剂在塔曼温度附近的便捷原子扩散策略提高光催化 H2O2 产率。

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-15 Epub Date: 2025-02-04 DOI: 10.1016/j.jcis.2025.02.014

Tao Zhang, Zhijia Song, Zhiwei Sun, Haichao Li, Zhaoxiong Xie, Qin Kuang

{"title":"Enhanced photocatalytic H2O2 production via a facile atomic diffusion strategy near tammann temperature for single atom photocatalysts.","authors":"Tao Zhang, Zhijia Song, Zhiwei Sun, Haichao Li, Zhaoxiong Xie, Qin Kuang","doi":"10.1016/j.jcis.2025.02.014","DOIUrl":"10.1016/j.jcis.2025.02.014","url":null,"abstract":"Current methods for preparing single atom catalysts (SACs) often suffer from challenges such as high synthesis temperatures, complicated procedures, and expensive equipment. In this study, a facile and universal atomic diffusion strategy near Tamman temperature (AD-TTam) was proposed for the synthesis of semiconductor supported non-noble metal SACs, denoted as M/S, where M = Fe, Ni, Cu, Al and S = ZnO, C3N4, TiO2(A), In2O3. Based on the empirical TTam (c.a. 1/2 of the melting point) phenomenon, this strategy utilized the higher atomic mobility in bulk metals near TTam to facilitate the migration of metal atoms to the support surface, thereby forming SACs at a relatively low temperature. A series of M/S SACs prepared using the AD-TTam strategy all exhibited enhanced photocatalytic H2O2 production activity. Notably, Cu/ZnO achieved an H2O2 production rate of 986.7 μmol g-1h-1 through the synergistic dual pathways of the water oxidation reaction and the oxygen reduction reaction, marking a 5.4-fold increase compared to pure ZnO. The introduction of Cu single atoms significantly improved the separation and migration of charge carriers in Cu/ZnO, thereby promoting the catalytic conversion of H2O and O2. Overall, this strategy is easily extensible at relatively low calcination temperatures and presents great potential for industrial applications.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"686 ","pages":"1114-1124"},"PeriodicalIF":9.4,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397538","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

A double-confined strategy for enhancing the pseudocapacitance performance of nickel-based sulfides-unveiling aqueous pseudocapacitive energy storage mechanism.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-15 Epub Date: 2025-02-05 DOI: 10.1016/j.jcis.2025.02.027

Gang Yang, Yan Yang, Yan Li, Fangxiang Song, Qianlin Chen

{"title":"A double-confined strategy for enhancing the pseudocapacitance performance of nickel-based sulfides-unveiling aqueous pseudocapacitive energy storage mechanism.","authors":"Gang Yang, Yan Yang, Yan Li, Fangxiang Song, Qianlin Chen","doi":"10.1016/j.jcis.2025.02.027","DOIUrl":"10.1016/j.jcis.2025.02.027","url":null,"abstract":"Lower voltage window and limited pseudocapacitive active sites are identified as critical impediments hindering the advancement of nickel-based supercapacitors. Herein, a double-confined strategy involving nanosizing and heterointerfaces is proposed to construct nickel-based sulfide composite (PMO@NiS2/Ni0.96S@C) with abundant oxygen vacancies (OV), sulfur vacancies (SV), and heterostructures. The composite was prepared using liquid-phase in situ self-assembly and low-temperature in situ induction techniques. The double-confined structure and the introduction of vacancies can effectively expose the pseudocapacitive active sites and improve the operating voltage window range of nickel nanosulfides to enhance pseudocapacitive performance. It is determined that anions and cations in the electrolyte are collectively implicated in the energy storage process. Meanwhile, electrochemical quasi-in situ XPS, in situ electrochemical quartz crystal microbalance (EQCM), and theoretical calculations based on density functional theory (DFT) were utilized to verify the energy storage mechanisms of anions and cations in the electrolyte. Furthermore, a pseudocapacitive reaction mechanism for the composites is proposed, which encompasses a novel charge storage coupling effect between the surface redox reaction of the electrolyte anions and the intercalation/de-intercalation of the electrolyte cations at the interlayer and heterointerface. Consequently, the (PMO@NiS2/Ni0.96S@C) electrode achieves 1807 C/g (6 M KOH, 0.25 A/g) under the working potential window of -0.8 ∼ 0.5 V. The assembled symmetric supercapacitor demonstrates a specific potential of 2 V, yielding an energy density of 96 Wh kg-1 at a power density of 300 W kg-1. This work provides a theoretical reference for designing nickel-based compound materials with high energy density.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"686 ","pages":"1089-1104"},"PeriodicalIF":9.4,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397535","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

Synergistic removal of chromium(VI) and tetracycline by porous carbon sponges embedded with MoS₂: Performance and radical mechanism of piezoelectric catalysis.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-15 Epub Date: 2025-02-06 DOI: 10.1016/j.jcis.2025.02.036

Hongwei Xu, Xiaxia Chen, Chao Liu, Mingyang Xu, Chenxi Guo, Yinglong Wang, Zhaoyou Zhu, Fanqing Meng

{"title":"Synergistic removal of chromium(VI) and tetracycline by porous carbon sponges embedded with MoS2: Performance and radical mechanism of piezoelectric catalysis.","authors":"Hongwei Xu, Xiaxia Chen, Chao Liu, Mingyang Xu, Chenxi Guo, Yinglong Wang, Zhaoyou Zhu, Fanqing Meng","doi":"10.1016/j.jcis.2025.02.036","DOIUrl":"10.1016/j.jcis.2025.02.036","url":null,"abstract":"The presence of hexavalent chromium(Ⅵ) Cr(Ⅵ) and antibiotics in the environment can lead to the formation of combined pollutants that are harmful to ecosystems. To address this problem, we synthesized MoS2 embedded in the porous super-hydrophilic polyurethane (PU) sponge and used weak water flow to drive the piezoelectric catalytic synergistic degradation of Cr(Ⅵ) and tetracycline (TC). In this study, the piezoelectric properties of MoS2/PU were confirmed via piezoresponse force microscopy (PFM) and COMSOL multiphysics calculations. Additionally, dynamics experiments, quenching experiments, electron paramagnetic resonance (EPR) spectroscopy, three-dimensional fluorescence excitation-emission matrix (3D-EEM) spectroscopy, and free radical generation rate analysis were conducted to explore the removal performance and mechanisms of MoS2/PU on the TC-Cr(VI) system. The results indicated that the coexistence of the two pollutants promotes the transfer of charge in MoS2/PU, further combined with O2 to produce H2O2 and continued to produce OH. The removal rates of TC and Cr(VI) in the TC-Cr (VI) mixed system at 30 min were 97 % and 94 %, respectively, which were 1.45 and 1.46 times those of the single TC and single Cr(VI) systems, respectively. Finally, potentially vulnerable sites of TC were calculated and analyzed according to density functional theory (DFT). Our results provide a new strategy for improving the degradation efficiency of antibiotics and Cr(VI) metals.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"686 ","pages":"1175-1187"},"PeriodicalIF":9.4,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143405089","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

Porous carbon nanosheets integrated with graphene-wrapped CoO and CoNx as efficient bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-01 Epub Date: 2025-01-21 DOI: 10.1016/j.jcis.2025.01.170

Chang Ma, Binji Zhu, Yue Wang, Shuwen Ma, Jingli Shi, Xiangwu Zhang, Yan Song

{"title":"Porous carbon nanosheets integrated with graphene-wrapped CoO and CoNx as efficient bifunctional oxygen electrocatalysts for rechargeable zinc-air batteries.","authors":"Chang Ma, Binji Zhu, Yue Wang, Shuwen Ma, Jingli Shi, Xiangwu Zhang, Yan Song","doi":"10.1016/j.jcis.2025.01.170","DOIUrl":"10.1016/j.jcis.2025.01.170","url":null,"abstract":"The development of advanced bifunctional oxygen electrocatalysts for the oxygen reduction reactions (ORR) and oxygen evolution reactions (OER) is crucial for the practical application of zinc-air batteries (ZABs). Herein, porous carbon nanosheets integrated with abundant graphene-wrapped CoO and CoNx (CoO/CoNx-C) were successfully fabricated through a simple one-step pyrolysis. With convenient porous channel and large accessible surface, abundant CoO/CoNx species and graphene wrapping structure, CoO/CoNx-C exhibited a half-wave potential of 0.844 V in ORR and an overpotential of 384 mV (@10 mA cm-2) in OER in the alkaline environment and presented a negative shift of 9 mV in ORR after 8000 cycles and positive shift of 19 mV in OER after 2000 cycles. Electrochemical acid-washing and comparison analysis revealed that the ORR activity mainly originated from CoO nanoparticles, while CoNx species were greatly responsible for OER catalysis. Furthermore, the as-prepared CoO/CoNx-C endowed the rechargeable liquid and solid ZABs with superior power density (161 mW cm-2 for liquid ZABs and 137 mW cm-2 for solid ZABs) and long-term stability (stable in 1000 h charge/discharge tests) compared to commercial catalysts. This work provides a feasible strategy for cobalt/carbon hybrid materials as advanced bifunctional electrocatalysts for ZABs.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"793-803"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143045314","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

Sea urchin-like covalent organic frameworks/TiO₂ heterostructure for enhanced photocatalytic CO₂ conversion.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-01 Epub Date: 2025-01-27 DOI: 10.1016/j.jcis.2025.01.231

Xin Zhao, Qianxi Liu, Qi Li, Yihang Yin, Mang Zheng, Fanqi Luo, Huiquan Gu, Baojiang Jiang

{"title":"Sea urchin-like covalent organic frameworks/TiO2 heterostructure for enhanced photocatalytic CO2 conversion.","authors":"Xin Zhao, Qianxi Liu, Qi Li, Yihang Yin, Mang Zheng, Fanqi Luo, Huiquan Gu, Baojiang Jiang","doi":"10.1016/j.jcis.2025.01.231","DOIUrl":"10.1016/j.jcis.2025.01.231","url":null,"abstract":"Photocatalytic reduction of CO2 to valuable chemicals is an effective strategy to address the environmental problems and energy crisis. Covalent organic frameworks (COFs) are emerging materials known for their excellent diverse properties, albeit limited by special synthetic methods, including high temperature (120 °C) and the necessity of inert gas atmosphere. Herein, a novel synthesis method under room temperature and air was optimized to form TpPa-COF (TP-COF) by p-phenylenediamine (Pa) and 2,4,6-triformyl phloroglucinol (Tp) through electrostatic self-assembly. To further expand the application scope of TP-COF, a heterojunction structure was constructed by in-situ growth of TP-COF onto TiO2 to form TiO2@TP-COF. In the photocatalytic CO2 reaction of TiO2@TP-COF composites, TiO2 acts as a reduction site to reduce CO2 to CO, and triethanolamine (TEOA) acts as a hole-sacrificing reagent. It was demonstrated by in situ X-ray photoelectron spectroscopy (XPS) that the direction of electron transfer in the TiO2@TP-COF composites flowed from TP-COF to TiO2. Meanwhile, TEOA on TP-COF was oxidized to consume holes and produce protons for the reduction of CO2. Combining the advantages of organic and inorganic semiconductors, the heterojunction structure effectively improves the photocatalytic properties of TiO2@TP-COF under visible light irradiation. TiO2@TP-COF demonstrates a remarkable photocatalytic CO2 reduction rate of 133.37 μmol/g/h at λ = 420 nm, which is 3.19 and 2.88 times higher than that of TP-COF and TiO2, respectively, while exhibiting a selectivity of 73 % for CO. This convenient method of synthesizing TiO2@TP-COF catalysts will open up new perspectives for future COF-based materials.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"1068-1076"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143062674","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

Periodate activation by plasma coupled with FeNC for contaminant removal: Machine learning assisted catalyst optimization and electron shuttle mechanism.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-01 Epub Date: 2025-01-27 DOI: 10.1016/j.jcis.2025.01.226

Wenxuan Jiang, Yawen Wang, Chendong Puyang, Shoufeng Tang, He Guo

{"title":"Periodate activation by plasma coupled with FeNC for contaminant removal: Machine learning assisted catalyst optimization and electron shuttle mechanism.","authors":"Wenxuan Jiang, Yawen Wang, Chendong Puyang, Shoufeng Tang, He Guo","doi":"10.1016/j.jcis.2025.01.226","DOIUrl":"10.1016/j.jcis.2025.01.226","url":null,"abstract":"Emerging contaminants (ECs) pose great challenges to water treatment technology due to their complexity and high harm. In this paper, the method of dielectric barrier discharge (DBD) plasma coupled with iron-based catalyst (FeNC) activating periodate (PI) was first designed for ECs removal. The ingenious introduction of FeNC not only promotes the Fenton-like reaction of DBD system but also reduces the PI activation energy barrier and accelerates the electron shuttle between PI and pollutants. Based on the parameters evaluation of machine learning (ML), the calcination temperature of 575 ℃ and 17 % N addition were determined for best catalytic performance. XRD, Raman spectroscopy, XPS and density functional theory (DFT) analysis show that optimized catalyst has better electron shuttle characteristics and PI activation ability. Compared to DBD (78 %) and DBD/PI (94 %), DBD/FeNC/PI could achieve 100 % degradation efficiency of sulfadiazine (SDZ) in 12 min with high reaction rate. In addition to the effects of ROSs (1O2, OH and O2-), the efficient electron transfer mediated by FeNC and PI is the key to promoting the degradation of pollutants. The progressive dissociation of pyrimidine ring under the action of OH and electron transfer is the main pathway of SDZ degradation. The toxicity of intermediate products produced by the system is generally lower than that of SDZ. The system still has a high SDZ removal efficiency in actual water and has a good removal effect for other types of ECs, which also makes the system have a better practical prospect.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"975-987"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143062336","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

Awakening n-π* electron transition in structurally distorted g-C₃N₄ nanosheets via hexamethylenetetramine-involved supercritical CO₂ treatment towards efficient photocatalytic H₂ production.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-01 Epub Date: 2025-01-21 DOI: 10.1016/j.jcis.2025.01.179

Xing Kang, Yuzhou Jiang, Jinwen Shi, Liuhao Mao, Yanbing Liu, Binjiang Zhai, Hui Jin, Liejin Guo

{"title":"Awakening n-π* electron transition in structurally distorted g-C3N4 nanosheets via hexamethylenetetramine-involved supercritical CO2 treatment towards efficient photocatalytic H2 production.","authors":"Xing Kang, Yuzhou Jiang, Jinwen Shi, Liuhao Mao, Yanbing Liu, Binjiang Zhai, Hui Jin, Liejin Guo","doi":"10.1016/j.jcis.2025.01.179","DOIUrl":"10.1016/j.jcis.2025.01.179","url":null,"abstract":"Graphitic carbon nitride (g-C3N4) has been regarded as highly potential photocatalyst for solar energy utilization. However, the restricted absorption of visible light for pristine g-C3N4 significantly limits the solar-light-driven chemical reaction efficiency. Herein, structurally distorted g-C3N4 nanosheets with awakened n-π* electron transition were successfully synthesized through hexamethylenetetramine (HMTA)-involved supercritical CO2 (scCO2) treatment and following pyrolysis of melamine precursor. ScCO2 treatment was conductive to homogeneously dissoving melamine precursor and HMTA, and then the modification by HMTA with three-dimensional structure changed the g-C3N4 photocatalyst from a symmetrical planar structure to an asymmetrical non-planar structure. The resulting awakened n-π* electron transition in structurally distorted g-C3N4 nanosheets greatly extended the photoresponse range of g-C3N4 and increased the amount of catalytically active π electrons. Moreover, the unique distorted structure of g-C3N4 enhanced photogenerated charge carriers separation and provided sufficient reactive sites for photocatalytic H2 production. Consequently, the structurally distorted g-C3N4 nanosheets exhibited enhanced photocatalytic H2 production performance, which was up to 6.4 times that of pristine g-C3N4. This work presents a promising scCO2 strategy towards precursor treatment to regulate the microstructure of g-C3N4, and provides valuable guidance to obtain efficient g-C3N4 photocatalyst by microstructure engineering.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"716-723"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143035554","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

In-situ conversion of BiOBr to Br-doped BiOCl nanosheets for "rocking chair" zinc-ion battery.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-01 Epub Date: 2025-01-21 DOI: 10.1016/j.jcis.2025.01.171

Yuzhu Qian, Qing Zhang, Lijuan Chen, Yaoyong Dong, Ting Song, Yong Pei, Xianyou Wang, Xiongwei Wu, Xuejun Zheng, Wenyuan He, Bei Long

{"title":"In-situ conversion of BiOBr to Br-doped BiOCl nanosheets for \"rocking chair\" zinc-ion battery.","authors":"Yuzhu Qian, Qing Zhang, Lijuan Chen, Yaoyong Dong, Ting Song, Yong Pei, Xianyou Wang, Xiongwei Wu, Xuejun Zheng, Wenyuan He, Bei Long","doi":"10.1016/j.jcis.2025.01.171","DOIUrl":"10.1016/j.jcis.2025.01.171","url":null,"abstract":"Developing insertion-type anodes is essential for designing high-performance \"rocking chair\" zinc-ion batteries. BiOCl shows great potential as an insertion-type anode material for Zn2+ storage due to its high specific capacity and unique layered structure. However, the development of BiOCl has been significantly hampered by its poor stability and kinetics during cycling. In this study, Br-doped and carbon-coated BiOCl ultrathin nanosheets (Br-BiOCl@NC) are synthesized as high-performance anodes. The ultrathin nanosheet morphology facilitates Zn2+/H+ transfer and the Br doping reduces the Zn2+/H+ diffusion barrier. Additionally, the carbon coating enhances the electronic transfer. Furthermore, an insertion-conversion mechanism involving H+ and Zn2+ storage is revealed by ex-situ tests. Therefore, Br-BiOCl@NC exhibits a high discharge capacity of 174 mA h/g at 500 mA/g without capacity degradation after 1000 cycles. The Br-BiOCl@NC//MnO2 full cell presents a discharge capacity of ≈ 120 mA h/g at 200 mA/g. This work offers valuable insights for the design of high-performance insertion-type anode materials in zinc-ion batteries.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"743-751"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143035707","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

In-situ engineering of centralized mesopores and edge nitrogen for porous carbons toward zinc ion hybrid capacitors.

IF 9.4 1区化学

Journal of Colloid and Interface Science Pub Date : 2025-05-01 Epub Date: 2025-01-21 DOI: 10.1016/j.jcis.2025.01.165

Caiwei Wang, Zicheng Li, Wenli Zhang, Bo Chen, Yuanyuan Ge, Zhili Li, Xuemin Cui

{"title":"In-situ engineering of centralized mesopores and edge nitrogen for porous carbons toward zinc ion hybrid capacitors.","authors":"Caiwei Wang, Zicheng Li, Wenli Zhang, Bo Chen, Yuanyuan Ge, Zhili Li, Xuemin Cui","doi":"10.1016/j.jcis.2025.01.165","DOIUrl":"10.1016/j.jcis.2025.01.165","url":null,"abstract":"Porous carbons with large surface area (>3000 m2/g) and heteroatom dopants have shown great promise as electrode materials for zinc ion hybrid capacitors. Centralized mesopores are effective to accelerate kinetics, and edge nitrogen can efficiently enhance pseudocapacitive capability. It is a great challenge to engineer centralized mesopores and edge nitrogen in large-surface-area porous carbons. Herein, a strategy of melamine-boosted K2CO3 activation is proposed to prepare edge-nitrogen-doped hierarchical porous carbons (ENHPCs). KOCN generated by K2CO3 reacting cyano groups (-CN) couples with K2CO3 activation engineers large-surface-area porous carbon. KCN in-situ generated by KOCN etching carbon atoms plays a template role in constructing centralized mesopores. Edge-nitrogen skeleton is formed by g-C3N4 losing -CN, and then in-situ integrated into porous carbon skeleton. The efficiency of melamine-boosted K2CO3 activation reaches the highest at a melamine/lignin mass ratio of 0.5, where the optimized ENHPCs (ENHPC-0.5) have a large surface area of 3122 m2/g, a mesopore architecture (2.8 nm) with a mesoporosity of 60.5 % and a moderate edge-N content of 1.9 at.%. ENHPC-0.5 cathode displays a high capacitance of 350F/g at 0.1 A/g, an excellent rate capability of 129F/g at 20 A/g and a robust cycling life. This work provides a novel strategy to prepare heteroatom-doped high-surface-area porous carbons for zinc ion hybrid capacitors.","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"674-684"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143035720","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