Journal of Colloid and Interface Science最新文献

{"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":"<p><p>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.</p>","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}

{"title":"Design and synthesis of fluorinated polyimides with low thermal expansion and enhanced dielectric properties.","authors":"Yang Li, Zhong-Wen Pu, Zhi-Zhou Yang, Yi-Da Wang, Yu-Tang Shen, Jing-Bo Wu, Lingliang Long, Yin-Ning Zhou, Wei-Cheng Yan","doi":"10.1016/j.jcis.2025.01.197","DOIUrl":"10.1016/j.jcis.2025.01.197","url":null,"abstract":"<p><p>Modern microelectronics industries urgently require dielectric materials with low thermal expansion coefficients, low dielectric constants, and minimal dielectric loss. However, the design principles of materials with low dielectric constants and low thermal expansion are contradictory. In this study, a new diamine monomer containing a dibenzocyclooctadiene unit (DBCOD-NH₂) was designed and synthesized, which was subsequently polymerized with high fluorine content 4,4'-hexafluoroisopr-opylidene diphthalic anhydride and 4,4'-diamino-2,2'-bis(trifleoromethyl)biphenyl to obtain a series of fluorinated polyimides (PIs). Due to the unique conformational transition of the eight-membered carbon ring, the resulting PI can reach a low averaging thermal expansion coefficient (CTE) of only 12.27 ppm/K over 5-150 ℃ with a size change rate of only 0.16 %. Surprisingly, the synergistic effect of DBCOD-NH₂ with the other two monomers enhances the dielectric performance of the PIs. At an electric field frequency of 10 MHz, the dielectric constant (D_k) and the dielectric loss (D_f) can be reduced to as low as 2.61 and 0.00194, respectively. The strategy used herein largely tackles the challenge of balancing low D_k with low CTE. Furthermore, these PI films also exhibit good thermal stability (with 5 wt% weight loss temperatures ranging from 453 to 537 ℃ in N₂, and glass transition temperatures of 305-337 ℃) and robust mechanical properties (with a tensile modulus of 1.88-2.29 GPa and an elongation at break of 6.36-8.11 %). The combination of low thermal expansion and excellent dielectric properties renders these PIs highly promising for applications in the microelectronics and telecommunications industries.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"938-947"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143057666","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}

{"title":"Asymmetric P-N₃ bonds in polymeric carbon nitride: Polarizing localized charge for efficient photocatalytic hydrogen evolution and selective alcohol oxidation.","authors":"Siying Lin, Huiyuan Meng, Qi Li, Xudong Xiao, Huiquan Gu, Ying Xie, Baojiang Jiang","doi":"10.1016/j.jcis.2025.01.213","DOIUrl":"10.1016/j.jcis.2025.01.213","url":null,"abstract":"<p><p>The simultaneous generation of hydrogen (H₂) and the oxidative transformation of organic molecules through photocatalytic processes represents a highly promising dual-purpose strategy. This approach obviates the necessity for sacrificial agents while augmenting catalytic efficiency, thereby facilitating the integrated production of high-value chemicals and renewable energy carriers. Polymeric carbon nitride (PCN) has emerged as a leading candidate among coupled photocatalysts. Nevertheless, PCN's efficacy is constrained by the inefficient separation of charges and the functional limitations of its active sites. Herein, the incorporation of P-N₃ groups into PCN introduces active sites with pronounced charge asymmetry, resulting in strong local charge polarization. This asymmetric charge distribution, mediated by the P-N₃ groups, significantly enhances exciton dissociation. Remarkably, the P-N₃-modified narrow-dimensional fragmented carbon nitride (P-CNNS) achieves an 85 % conversion rate for 4-MBA with nearly 100 % selectivity, and a hydrogen evolution rate of 27.9 mmol g^-1 (with Pt as a co-catalyst), representing 6.2 times higher than that of bulk carbon nitride (BCN). The charge-polarized sites facilitate the transfer of electrons, which is a pivotal process in the activation of 4-methoxybenzyl alcohol (4-MBA). Additionally, these sites serve as adsorption sites, facilitating the oxidation of 4-MBA into anisaldehyde (AA). This work underscores the potential of non-metallic site catalysts for a wide range of coupled photocatalytic applications.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"1154-1163"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143073096","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}

{"title":"Modulation of interface structure on titanium-based metal-organic frameworks heterojunctions for boosting photocatalytic carbon dioxide reduction.","authors":"Xiaoyu Ma, Yan Zhang, Awu Zhou, Yutong Jia, Zhenghe Xie, Lifeng Ding, Jian-Rong Li","doi":"10.1016/j.jcis.2025.01.125","DOIUrl":"10.1016/j.jcis.2025.01.125","url":null,"abstract":"<p><p>Rational regulation of interface structure in photocatalysts is a promising strategy to improve the photocatalytic performance of carbon dioxide (CO₂) reduction. However, it remains a challenge to modulate the interface structure of multi-component heterojunctions. Herein, a strategy integrating heterojunction with facet engineering is developed to modulate the interface structure of metal-organic frameworks (MOF)-based heterojunctions. A series of core-shell UiO-66 (Zr-MOF)-loaded MIL-125 (Ti-MOF) heterojunctions with exposed specific facets were prepared to enhance the separation efficiency of photogenerated electrons-holes in CO₂ photoreduction. Impressively, MIL-125_to@UiO-66 with exposed {1 1 1} facet exhibits an excellent CO production rate (56.4 μmol g^-1 h^-1) and selectivity (99 %) under visible light irradiation without any photosensitizers/sacrificial agents, being 1.4 and 11.3 times higher than individual MIL-125_to and UiO-66, respectively. The type-II heterojunction significantly enhances the separation of photogenerated electrons-holes in physical space. The photogenerated electrons migrate from Zr in UiO-66 to Ti in MIL-125_to, promoting a spatial synergy between CO₂ reduction on MIL-125_to and H₂O oxidation on UiO-66. Compared with MIL-125_rd@UiO-66 with exposed {1 1 0} facet and MIL-125_ds@UiO-66 with exposed {0 0 1} facet, MIL-125_to@UiO-66 with exposed {1 1 1} facet improves the exposure of surface-active Ti sites, thereby enhancing the adsorption/activation of CO₂ to generate the *COOH intermediate. This work provides an effective strategy for designing MOF-based heterojunction photocatalysts to improve photocatalytic performance.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"696-705"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143035689","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}

{"title":"Floating BiOBr/Ti₃C₂ aerogel spheres for efficient degradation of quinolone antibiotics: Rapid oxygen transfer via triphase interface and effective charges separation by internal electric field.","authors":"Jing Sun, Linxing Wang, Ting Huang, Kun Liu, Tian Fu, Zisong Xu, Wenhao Yang, Zhangfa Tong, Hanbing Zhang","doi":"10.1016/j.jcis.2025.01.187","DOIUrl":"10.1016/j.jcis.2025.01.187","url":null,"abstract":"<p><p>The limited transport of oxygen at the solid-liquid interface and the poor charge separation efficiency of single catalyst significantly impedes the generation of reactive oxygen species (ROS), thereby weakening the application potential of photocatalytic technology in water pollution control. Herein, a hollow porous photocatalytic aerogel sphere (calcium alginate/cellulose nanofibers (CA/CNF)) loaded BiOBr/Ti₃C₂, combining a favourable mass transfer structure with effective catalytic centers was firstly presented. The floatability and hollow pore structure facilitated rapid O₂ transfer via a triphase interface, thereby promoting the generation of ROS. The oxygen diffusion flux of aerogel spheres' upper surface in triphase system exhibited a 0.151 μmol·(m²·S)^-1 increase compared to that of the diphase one based on Finite element simulation (FEM). Furthermore, owing to the regulation of charge spatial distribution by Schottky junction of BiOBr/Ti₃C₂, internal electric field (IEF) of CA/CNF@BiOBr/Ti₃C₂ achieved 1.8-fold improvement compared with CA/CNF@BiOBr, thus enhancing the separation of photogenerated charges. Accordingly, the degradation efficiency and catalytic rate constant of moxifloxacin (MOX) by CA/CNF@BiOBr/Ti₃C₂ in triphase system have improved by 20.1% and 1.5 times compared to those of diphase system, respectively. Moreover, the potential to mineralize multiple quinolone antibiotics (FQs), high resistance to complex water disturbances and excellent stability were revealed in CA/CNF@BiOBr/Ti₃C₂. Besides, the triphase system based on CA/CNF@BiOBr/Ti₃C₂ confirmed the potential for large-scale water treatment application in 500 mL MOX circular flow, reaching 90% MOX removal within 120 min. This research clarifies the oxygen mass transfer mechanism and pathways to the enhanced ROS production in a triphase system, and provides new insights into designing efficient floatable photocatalyst and adaptive reaction devices for new pollutants remediation.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"813-825"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143045300","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}

{"title":"Strengthening perovskite interfaces with in-situ polymerized self-assembled monolayers.","authors":"Yuliang Che, Yang Wang, Ting Yu, Jinbao Zhang, Li Yang","doi":"10.1016/j.jcis.2025.01.185","DOIUrl":"10.1016/j.jcis.2025.01.185","url":null,"abstract":"<p><p>Poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonate) (PEDOT:PSS) has been widely used as the hole transport layers (HTLs) for perovskite solar cells (PSCs), especially in all-perovskite tandems. However, the energy-level mismatch between PEDOT:PSS and perovskite leads to large voltage deficit in PSCs, and the dopant PSS with high acidity and hygroscopicity conspicuously deteriorates the device stability. Herein, a powerful strategy for constructing self-assembled polymer HTLs is developed by in-situ polymerization of functionalized 3,4-ethylenedioxythiophene with carboxylic acids as side groups. This strategy facilitates the formation of a self-assembled polymer monolayer to be strongly anchored on the glass substrate, and enables the elimination of the dependence of PSS doping for traditional PEDOT. The obtained polymer HTL PEDOT-l-COOH (PTLC) exhibits an appropriate energy-level alignment with the perovskite, which enhances the charge carrier collection at the interfaces. Besides, the self-assembled PTLC with high structural ordering favors the heterogeneous nucleation of perovskite, resulting in the formation of high-quality perovskite films with superior buried interfaces. Consequently, the inverted PSCs based on PTLC demonstrate a champion conversion efficiency of 20.30 % with a high open-circuit voltage of 1.03 V which are much higher than that of PEDOT:PSS-based devices (14.47 %, 0.79 V). More encouragingly, the unsealed devices with PTLC deliver outstanding operational stability by maintaining 90 % of initial efficiency for 950 h under ambient condition with a relative humidity of 30 % ± 5 %. This work opens a new avenue for developing self-assembled PEDOT-based HTLs for optoelectronic devices, and paves the way for further improving the performance of inverted PSCs.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"685 ","pages":"1164-1172"},"PeriodicalIF":9.4,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143073151","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}

{"title":"Graphdiyne based Zn_{0. 5}Cd_{0. 5}S and NiO dual S-scheme heterojunction boosting photocatalytic hydrogen evolution.","authors":"Bingzhu Li, Xiaohua Ma, Minjun Lei, Zhiliang Jin","doi":"10.1016/j.jcis.2024.12.150","DOIUrl":"10.1016/j.jcis.2024.12.150","url":null,"abstract":"<p><p>As a novel carbon-based material with two-dimensional (2D) characteristics, graphdiyne (GDY) shows great potential in constructing active catalytic sites due to its distinctive atomic configuration and sp/sp² conjugated hybrid two-dimensional networks. In this study, the layered GDY was synthesized using the ball milling method, and Zn_0.5Cd_0.5S/Graphdiyne/NiO (ZnCdS/GDY/NiO) composite was synthesized by in-situ composite and physical mixing method. The prepared ZnCdS/GDY/NiO has good photostability outstanding performance in photocatalytic hydrogen production. When exposed to 5 W of white light, the ZnCdS/GDY/NiO photocatalyst demonstrates a hydrogen production rate of 24.44 mmol·g^-1·h^-1, which was 8.4 times greater than that of pure Zn_0.5Cd_0.5S under the same conditions. Various characterization tests and theoretical calculations show that the improved photocatalytic efficiency resulted from the formation of a dual S-scheme heterostructure in the ZnCdS/GDY/NiO composite catalyst, which promoted the recombination of relatively useless photogenerated electron holes. Furthermore, strong photogenerated holes and electrons in the more positive valence band (VB) and the more negative conduction band (CB) were retained, which significantly improved the photogenerated carrier separation ability of the composite catalyst, and thus enhances the hydrogen evolution activity.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"1064-1077"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142891094","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}

{"title":"Ion flux regulating with Au-modified separator to realize a homogenize Zn metal deposition.","authors":"Mengyuan Shen, Anli Wang, Jianlin Chen, Siyao Song, Wenyan Hou, Yunpeng Li, Jiayu Zhang, Jiamin Yuan, Fei Shen, Xiaogang Han","doi":"10.1016/j.jcis.2024.12.117","DOIUrl":"10.1016/j.jcis.2024.12.117","url":null,"abstract":"<p><p>Aqueous Zn-ion batteries (AZIBs) have attracted widespread attention owing to the feature of low cost, inherent safety and eco-friendliness. However, the poor reversibility of Zn anode severely hinders the practical applicability of AZIBs. Separator modification is an effective way to functionalize the electrode/electrolyte interface and improve the cycling performance. Here, we propose a modified glass fiber separator with Au coating (Au@GF), which could realize uniform Zn²⁺ distribution at the electrode/electrolyte interface and regulate the plating/stripping behaviors, achieving a dense and homogenous deposition. Zn||Zn symmetric cells assembled with Au@GF separator demonstrate evidently prolonged cycle life over 1600 h at the current density of 5 mA cm^-2 and the capacity of 1 mAh cm^-2, while symmetric cells with GF fail in less than 40 h. Even at the condition of 15 mA cm^-2/3 mAh cm^-2, lifespan of Zn||Zn cells with Au@GF is extended to 750 h, which is more than 3 times compared with that of GF. The modified separator with highly conductive coating is capable of a longtime stable Zn plating/stripping. Moreover, an enhanced cycling performance is also detected in a series of full cells with different cathode materials. This work provides an easy and efficient approach to homogenize Zn²⁺ deposition.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"892-900"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875686","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}

{"title":"In-situ growing carbon nanotubes reinforced highly heat dissipative three-dimensional aluminum framework composites.","authors":"Bin Wang, Yaotian Yan, Bin Qin, Zhenyu Ye, Yong Xia, Zilong Zhang, Xiaohang Zheng, Jian Cao, Junlei Qi","doi":"10.1016/j.jcis.2024.12.125","DOIUrl":"10.1016/j.jcis.2024.12.125","url":null,"abstract":"<p><p>The demand for lightweight heat dissipation design in highly miniaturized and portable electronic devices with high thermal density is becoming increasingly urgent. Herein, highly thermal conductive carbon nanotubes (CNTs) reinforced aluminum foam composites were prepared by catalyst chemical bath and subsequent in-situ growth approach. The dense CNTs show the intertwined structure features and construct high-speed channels near the surface of the skeletons for efficient thermal conduction, promoting the transport efficiency of heat flow. The regulation of the process leads to a proportion increase in the (1 1 0) crystal plane of the aluminum substrate. The calculation results of non-equilibrium molecular dynamics (NEMD) demonstrate that (1 1 0) crystal plane is conducive to enhancing thermal boundary conductance thus the desirable equivalent thermal conductivity is obtained in the model system. Moreover, the phonon behaviors at the heterointerface observed in phonon density of states spectrums (PDOS) show that the interface system with (1 1 0) crystal plane possesses the superior coupling effect suggesting the brilliant transmission capacity. The theoretical results of NEMD and PDOS provide a microscopic explanation for the high thermal conductivity observed in the prepared composites with a high content of Al (1 1 0) crystal plane. The composites exhibit a thermal conductivity of 30.63 W·m^-1·K^-1, improved by ∼300 % as compared to unmodified aluminum foam. The cooling efficiency of 28.63 % obtained in the composites indicates outstanding heat dissipative performance among other similar works. The composites prepared in the work could hold bright prospects for the thermal management field.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"799-817"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870814","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}

{"title":"Interfacial hydrogen bonds induced by porous FeCr bimetallic atomic sites for efficient oxygen reduction reaction.","authors":"Jingwen Wang, Qing Zhang, Lin Yang, Chuangang Hu, Zhengyu Bai, Zhongwei Chen","doi":"10.1016/j.jcis.2024.12.119","DOIUrl":"10.1016/j.jcis.2024.12.119","url":null,"abstract":"<p><p>Interfacial hydrogen bonds are pivotal in enhancing proton activity and accelerating the kinetics of proton-coupled electron transfer during electrocatalytic oxygen reduction reaction (ORR). Here we propose a novel FeCr bimetallic atomic sites catalyst supported on a honeycomb-like porous carbon layer, designed to optimize the microenvironment for efficient electrocatalytic ORR through the induction of interfacial hydrogen bonds. Characterizations, including X-ray absorption spectroscopy and in situ infrared spectroscopy, disclose the rearrangement of delocalized electrons due to the formation of FeCr sites, which facilitates the dissociation of interfacial water molecules and the subsequent formation of hydrogen bonds. This process significantly accelerates the proton-coupled electron transfer process and enhances the ORR reaction kinetics. As a result, the catalyst FeCrNC achieves a remarkable half-wave potential of 0.92 V and exhibits superior four-electron selectivity in 0.1 M KOH solution. Moreover, the zinc-air battery assembled by FeCrNC demonstrates a high power density of 207 mW cm^-2 and negligible degradation over 240 h at a current density of 10 mA cm^-2.</p>","PeriodicalId":351,"journal":{"name":"Journal of Colloid and Interface Science","volume":"683 Pt 1","pages":"742-751"},"PeriodicalIF":9.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142870855","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}