{"title":"Rational Construction of Graded Heterojunction Buried Interfaces for Efficient and Stable Perovskite Solar Cells","authors":"Wei Wan, , , Xiaozhen Huang, , , Guiran Gao, , , Wenze Dong, , , Yong Deng, , , Guosen Zhang, , , Yu Zhang, , , Yang Wang*, , , Ping Li, , , Guangbao Wu*, , , Mingguang Li*, , and , Runfeng Chen, ","doi":"10.1021/acsaem.5c02247","DOIUrl":"https://doi.org/10.1021/acsaem.5c02247","url":null,"abstract":"<p >Self-assembled monolayers (SAMs) employed as hole-transporting materials have driven significant advances in p-i-n-type perovskite solar cells (PSCs). However, inadequate SAM coverage and poor interfacial contact often result in inferior interface properties. Herein, a graded heterojunction buried interface for a perovskite film has been constructed to modify the perovskite/SAM interface via introducing an interfacial modifier of 3,6-dimethoxy-9-(4-vinylbenzyl)-9<i>H</i>-carbazole (MCz-V). The MCz-V molecule with carbazole-based core structures optimizes the surface properties of (2-(3,6-dimethoxy-9<i>H</i>-carbazol-9-yl)ethyl)phosphonic acid (MeO-2PACz)-based SAMs. Simultaneously, MCz-V molecules diffuse into the perovskite film, and a graded perovskite/MCz-V heterostructure near the perovskite buried interface is formed, thus promoting the carrier extraction process. Moreover, the <i>in situ</i> polymerization of MCz-V further enhances perovskite stability. Consequently, the MCz-V-modified PSCs achieve a champion power conversion efficiency (PCE) of 24.45% and a stabilized power output of 23.95%, retaining over 88% of their initial efficiency after over 2000 h of storage. This work provides an avenue for tackling buried interface issues in high-performance PSCs.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13902–13910"},"PeriodicalIF":5.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
William R. Fullerton, , , Haoruo Liu, , , David N. Agyeman-Budu, , , Jintao Fu, , , Mohamed H. Hassan, , , Mark C. Staub, , , Eric Detsi, , , Johanna Nelson Weker, , and , Christopher Y. Li*,
{"title":"A Comb-Chain Cross-Linker-Based Network Solid Polymer Electrolyte for All-Solid-State Sodium-Metal Batteries","authors":"William R. Fullerton, , , Haoruo Liu, , , David N. Agyeman-Budu, , , Jintao Fu, , , Mohamed H. Hassan, , , Mark C. Staub, , , Eric Detsi, , , Johanna Nelson Weker, , and , Christopher Y. Li*, ","doi":"10.1021/acsaem.5c02367","DOIUrl":"https://doi.org/10.1021/acsaem.5c02367","url":null,"abstract":"<p >All-solid-state sodium-metal batteries (SMBs) utilizing solid polymer electrolytes (SPEs) have gained considerable research interest due to the potentially enhanced safety, lower cost, and sustainable sodium supply compared to lithium metal. However, sodium’s high reactivity makes it prone to dendrite and orphaned metal formation, reducing its capacity and efficiency. In this work, we report a comb-chain cross-linker-based network SPE for all-solid-state SMBs. The high-functionality macromolecular cross-linker offers excellent overall mechanical properties of the SPE. The polymer network exhibited an impressive elongation at break of 181% and a high toughness of 1.6 MJ m<sup>–3</sup>. These excellent mechanical properties, combined with good ionic conductivity and processability, enable ultrathin SPE separators and contribute to the superb dendrite resistance and full cell performance of the SPE. Na|SPE|Na symmetric cells achieved a cycle life of ∼4248 h at 0.5 mA cm<sup>–2</sup> and 1 mAh cm<sup>–2</sup>, while Na|SPE|P2-type Na<sub>2/3</sub>[Ni<sub>1/3</sub>Mn<sub>2/3</sub>]O<sub>2</sub> composite cathode full cells displayed 80.6% capacity retention after 700 cycles at 1C, both of which are the highest reported values among SPE-based all-solid-state SMBs. This excellent performance was attributed to the combined mechanical and electrochemical properties of the SPE.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13959–13969"},"PeriodicalIF":5.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsaem.5c02367","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Carbon-Supported Platinum-Grafted Gold–Nickel Nanoclusters for Hydrogen Evolution Reaction","authors":"Lakshmi Kavalloor Murali, , , Kayalvizhi Anandhan, , , Subbiah Ravichandran, , , Edakkattuparambil Sidharth Shibu, , and , Jeyabharathi Chinnaiah*, ","doi":"10.1021/acsaem.5c01771","DOIUrl":"https://doi.org/10.1021/acsaem.5c01771","url":null,"abstract":"<p >A carbon-supported platinum-grafted thiolate-protected precision AuNi nanocluster (NC) (Pt-AuNi/C) is studied for the hydrogen evolution reaction (HER) in acidic solution. The AuNi/C is doped with platinum through an electroless process. The HER performance is evaluated for AuNi/C and Pt-AuNi/C in a 0.1 M sulfuric acid solution. Typical HER behavior is noticed with the noticeable reduction in overpotential by ca. 208 mV<sub>RHE</sub> @ 10 mA cm<sup>–2</sup> after platinum incorporation in the NCs. The HER curve on pristine NCs exhibits a contrasting steady-state limiting behavior, signaling a possible radial diffusion over the NCs. This result is expected for a random array-like arrangement of NCs, and this is witnessed as a changeover in steady-state limiting behavior to mass-transport free characteristics with increased proton concentration. However, the steady-state limiting behavior is obscured by the carbon support. Further, the Pt-AuNi/C is tested in a zero-gap cell, where cathodic current density of 2.3 A cm<sup>–2</sup> was measured at the overpotential of 0.5 V<sub>RHE</sub>, which is much better than that of the benchmark Pt/C.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13430–13438"},"PeriodicalIF":5.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Multivalent Ion-Conducting Metal- and Covalent- Organic Frameworks","authors":"Zhilin Du, , , Wonmi Lee*, , and , Dawei Feng*, ","doi":"10.1021/acsaem.5c01925","DOIUrl":"https://doi.org/10.1021/acsaem.5c01925","url":null,"abstract":"<p >Metal–organic frameworks (MOFs) and covalent organic frameworks (COFs) offer uniquely tunable nanoporous architectures, and ionic groups can provide the additional hopping sites, rendering them promising ion conductors for multivalent-ion batteries (e.g., Zn<sup>2+</sup>, Mg<sup>2+</sup>, Ca<sup>2+</sup>, Al<sup>3+</sup>). This review first examines the unique structures and ion transport mechanisms, highlighting how framework flexibility and functionalization lower activation energies for bulky multivalent cations. We then outline structural design principles, including incorporation of ionic groups to maximize ionic conductivity. Key synthetic methods such as mechanical grinding, ball milling, reflux, hydrothermal/solvothermal, and interfacial synthesis are compared in terms of crystallinity, scalability, and environmental impact. Potential applications of MOF/COF as solid electrolytes, membranes, and interfacial coatings for multivalent batteries to improve cycle life. The future research directions are also proposed to enable MOF/COF materials as practical conductors in next-generation multivalent-ion energy storage systems.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13040–13049"},"PeriodicalIF":5.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Introduction of Ag Nanoparticles onto Cu Catalysts Enhances the Selectivity toward Multicarbon Liquid Products in Electrochemical CO Reduction","authors":"Ryo Hishinuma*, , , Yuna Takeno, , , Yusaku F. Nishimura, , , Masahito Shiozawa, , , Shintaro Mizuno, , , Yasuhiko Takeda, , and , Masaoki Iwasaki, ","doi":"10.1021/acsaem.5c02283","DOIUrl":"https://doi.org/10.1021/acsaem.5c02283","url":null,"abstract":"<p >Electrochemical synthesis of multicarbon (C<sub>2+</sub>) liquid products from CO<sub>2</sub> is one of the key technologies for establishing a carbon-neutral society. To improve the selectivity for C<sub>2+</sub> products, a two-step cascade reaction has been proposed; CO<sub>2</sub> is first reduced to CO followed by further reduction to C<sub>2+</sub> products. However, conventional Cu-based catalysts predominantly yield gaseous products, such as C<sub>2</sub>H<sub>4</sub> in the CO reduction step, thereby capping the selectivity for C<sub>2+</sub> liquids. In this study, Ag nanoparticles introduced onto Cu<sub>2</sub>O nanocubes (Ag-Cu<sub>2</sub>O NC) were developed to improve the selectivity toward C<sub>2+</sub> liquid products in the CO reduction. The Ag-Cu<sub>2</sub>O NC demonstrated an exceptionally high Faradaic efficiency of 54% for C<sub>2+</sub> liquid products at a partial current density of 108 mA/cm<sup>2</sup>, approximately twice as high as that of the gaseous products, while suppressing C<sub>2</sub>H<sub>4</sub> formation. The catalyst morphology exhibited a Ag<sup>0</sup>-Cu<sup>0</sup> composite with Ag nanoparticles highly dispersed on the surfaces of metal Cu particles during the CO electrolysis. Thus, the configuration of Ag<sup>0</sup> and Cu<sup>0</sup> facilitates the selective formation of C<sub>2+</sub> liquid products. The present study highlights an effective strategy for materials design to improve the selectivity toward C<sub>2+</sub> liquid products in electrochemical CO reduction through the introduction of a second metal.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13929–13937"},"PeriodicalIF":5.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pablo A. García-Salaberri*, , , Lonneke van Eijk, , , William Bangay, , , Kara J. Ferner, , , Mee H. Ha, , , Michael Moore, , , Ivan Perea, , , Ahmet Kusoglu, , , Marc Secanell, , , Prodip K. Das, , , Nausir Firas, , , Svitlana Pylypenko, , , Melissa Novy, , , Michael Yandrasits, , , Suvash C. Saha, , , Ali Bayat, , , Shawn Litster, , and , Iryna V. Zenyuk,
{"title":"Materials Engineering for High Performance and Durability Proton Exchange Membrane Water Electrolyzers","authors":"Pablo A. García-Salaberri*, , , Lonneke van Eijk, , , William Bangay, , , Kara J. Ferner, , , Mee H. Ha, , , Michael Moore, , , Ivan Perea, , , Ahmet Kusoglu, , , Marc Secanell, , , Prodip K. Das, , , Nausir Firas, , , Svitlana Pylypenko, , , Melissa Novy, , , Michael Yandrasits, , , Suvash C. Saha, , , Ali Bayat, , , Shawn Litster, , and , Iryna V. Zenyuk, ","doi":"10.1021/acsaem.5c01989","DOIUrl":"https://doi.org/10.1021/acsaem.5c01989","url":null,"abstract":"<p >Proton exchange membrane water electrolyzers (PEMWEs) are expected to play a crucial role in the global green energy transition during the 21st century. They provide a versatile and sustainable solution for generating hydrogen with very high purity in combination with renewable energies, such as solar and wind. Despite their promise, PEMWEs face several critical problems, including high costs, performance limitations, and durability challenges, particularly at low iridium (Ir) loading on the anode. Advancing next-generation PEMWEs requires extensive work on materials engineering of all cell components, including the catalyst layer (CL), membrane, porous transport layer (PTL), bipolar plate (BPP), and gasket. This task must be performed with the complementary contribution of different modeling and characterization techniques. This review presents a critical perspective from academia, research centers, and industry, mapping main developments, remaining gaps, and strategic pathways to advance PEMWE technology. A focus is devoted to key aspects, such as operation at low Ir loading, membrane durability, multiscale transport layers, porous and non-porous flow fields, multiphysics modeling, and multipurpose characterization techniques, which are thoroughly discussed. By unifying these topics, this review provides readers with the essential knowledge to grasp current developments and tackle tomorrow’s challenges in PEMWE engineering.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13050–13121"},"PeriodicalIF":5.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsaem.5c01989","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In Situ Observations of Catalytically Active Sites of Cobalt–Manganese Spinel Oxides as Efficient Bifunctional Electrocatalysts for Oxygen Evolution and Reduction Reactions","authors":"Masafumi Harada*, , , Ayumi Saito, , , Honoka Nakahira, , , Yuki Mori, , and , Shogo Kawaguchi, ","doi":"10.1021/acsaem.5c01571","DOIUrl":"https://doi.org/10.1021/acsaem.5c01571","url":null,"abstract":"<p >A series of cobalt–manganese spinel oxide (Co<sub><i>x</i></sub>Mn<sub>3–<i>x</i></sub>O<sub>4</sub>) electrocatalysts (<i>x</i> = 0, 0.5, 1, 1.5, 2, and 3) was prepared via facile microwave-assisted synthesis followed by low-temperature calcination. The catalytically active sites for the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR) under electrochemical conditions must be determined to develop advanced energy conversion techniques. Here, the structural evolution of these catalytically active sites during electrocatalysis was investigated via modern synchrotron-based X-ray techniques, including powder X-ray diffraction, soft and hard X-ray absorption spectroscopy (XAS), and in situ XAS measurements under different applied potentials. The active sites for the OER differed from those for the ORR: the crystal structures varied from tetragonal to cubic phase as the Co content increased, and this local structural distortion and changes in the oxidation state of the active Co species modulated the OER performance. The cobalt oxyhydroxide (Co–OOH) active intermediate exhibited higher OER activity, whereas manganese oxyhydroxide (Mn–OOH) played an important role in the ORR performance by promoting a mechanism consisting of an initial two-electron reaction and subsequent disproportionation. In particular, the observed ORR activity of the Co<sub>1.5</sub>Mn<sub>1.5</sub>O<sub>4</sub> and Co<sub>2</sub>MnO<sub>4</sub> catalysts demonstrated that the better catalytic activity of MnOOH could be attributed to mediation processes involving the electrochemical reduction of MnO<sub>2</sub> to MnOOH, followed by chemical disproportionation of HO<sub>2</sub><sup>–</sup> on the catalyst surface.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13390–13406"},"PeriodicalIF":5.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wen Sun, , , Xin Zhang, , , Mehmet Ozdogan, , , Xiaodong Hou, , , Nuri Oncel, , and , Julia Xiaojun Zhao*,
{"title":"Facile Synthesis of Porous Carbonized Humic Acid as a Binder-Free Electrode for High-Capacitance Applications","authors":"Wen Sun, , , Xin Zhang, , , Mehmet Ozdogan, , , Xiaodong Hou, , , Nuri Oncel, , and , Julia Xiaojun Zhao*, ","doi":"10.1021/acsaem.5c01114","DOIUrl":"https://doi.org/10.1021/acsaem.5c01114","url":null,"abstract":"<p >Creating sustainable electrode materials that are high-performance and low-cost is essential for the progress of next-generation supercapacitors. This work reports a binder-free supercapacitor electrode material synthesized via in situ growth of coal-derived humic acid (HA) on nickel foam (Ni-foam). The material (CHA@Ni-foam) was fabricated using a simple hydrothermal method followed by calcination, resulting in a porous and conductive carbon nanonetwork with enhanced electrochemical properties suitable for fast charge storage. Thorough structural and compositional evaluations, involving scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FTIR), verified the effective carbonization and incorporation of HA onto Ni-foam. Electrochemical testing in both 3-electrode and symmetric 2-electrode configurations demonstrated high performance. This binder-free CHA@Ni-foam electrode exhibited an ultrahigh specific capacitance (Cs) of 905.3 F/g (at 1.15 A/g current density) in 2 M KOH electrolyte. The symmetric device delivered a high specific energy (<i>E</i>) of 75.0 W·h/kg and a specific power (P) of 150.2 W/kg within a 1.6 V operating window, with capacitance retention of 101.4% after 10,000 cycles of GCD. The combined benefits of low-cost coal-derived HA, binder-free architecture, and scalable fabrication suggest strong potential for CHA@Ni-foam as a high-performance electrode material for high-power energy storage applications.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13239–13252"},"PeriodicalIF":5.5,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jin Hwan Park, , , Oh Young Kim, , , Seok-Hu Bae, , and , Seok-Ho Hwang*,
{"title":"Effect of Silane-Functionalized Acrylate-Based Copolymer Additive on the Adhesion Properties of Polyolefin Elastomers for Photovoltaic Modules","authors":"Jin Hwan Park, , , Oh Young Kim, , , Seok-Hu Bae, , and , Seok-Ho Hwang*, ","doi":"10.1021/acsaem.5c01783","DOIUrl":"https://doi.org/10.1021/acsaem.5c01783","url":null,"abstract":"<p >In this study, an acrylate-based copolymer additive was developed to improve the interfacial adhesion of polyolefin elastomer (POE) encapsulants to glass substrates for photovoltaic (PV) module applications. Two types of copolymers, poly(butyl acrylate-<i>co</i>-octyl acrylate) [Poly(BA-<i>co</i>-OA)] and poly(butyl acrylate-<i>co</i>-octyl acrylate-<i>co</i>-3-(trimethoxysilyl)propyl acrylate) [Poly(BA-<i>co</i>-OA-<i>co</i>-TMSPA)], were synthesized via free-radical polymerization. The incorporation of these copolymers into POE compounds was found to have minimal influence on the thermal and mechanical properties of the neat POE. However, peel adhesion tests revealed that Poly(BA-<i>co</i>-OA-<i>co</i>-TMSPA) significantly enhanced the adhesion strength to glass due to silane-mediated interfacial bonding. Scanning electron microscopy/energy-dispersive X-ray spectroscopy analysis confirmed the homogeneous dispersion of the copolymer additive in the POE matrix. Furthermore, PV modules encapsulated by POE compounds containing the Poly(BA-<i>co</i>-OA-<i>co</i>-TMSPA) exhibited superior durability during a 1000 h damp-heat test, maintaining over 99% of their initial power conversion efficiency. These results demonstrate the potential of silane-functionalized acrylate copolymers as effective adhesion promotors for enhancing the environmental stability of POE-based encapsulants in PV modules.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13421–13429"},"PeriodicalIF":5.5,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Liang Yuan, , , Yanxi Zheng, , , Jiaqi Sun, , , Rui Ji, , , Xiang Li*, , , Mengkui Li, , , Hang Gao, , and , Kai Tang,
{"title":"Metal–Organic Framework-Derived Si@FCN Composite Based on Waste Silicon for High-Performance Lithium Storage","authors":"Liang Yuan, , , Yanxi Zheng, , , Jiaqi Sun, , , Rui Ji, , , Xiang Li*, , , Mengkui Li, , , Hang Gao, , and , Kai Tang, ","doi":"10.1021/acsaem.5c02276","DOIUrl":"https://doi.org/10.1021/acsaem.5c02276","url":null,"abstract":"<p >Nanosizing cheap kerf loss silicon (KL Si) and then compositing it with carbon is one of the effective ways to address the high-cost and low-cycling-life issues of a silicon-based anode for lithium-ion batteries (LIBs). In this work, a unique ZIFs-derived N-doped silicon–carbon structure (Si@FCN) has been prepared by exploiting the modulating effect of Pluronic F127 on metal–organic frameworks (MOFs). When tested as an anode for a CR3032 half-cell, Si@FCN demonstrates an initial Coulombic efficiency (ICE) of 75.4% at 0.1 A g<sup>–1</sup>, highlighting a stable cycling performance with discharge capacity maintained at 842.6 mAh g<sup>–1</sup> (0.1 A g<sup>–1</sup> for 200 cycles), 549.3 mAh g<sup>–1</sup> (0.5 A g<sup>–1</sup> for 300 cycles), and 485.7 mAh g<sup>–1</sup> (1.0 A g<sup>–1</sup> for 300 cycles). It also reveals good rate performance in the range of 0.2–5.0 A g<sup>–1</sup>. Such a remarkable electrochemical performance originates from the high surface area and porosity of the composite. The N-doped carbon layer derived from ZIF-8 demonstrated multifunctional enhancements in the electrode. Primarily, it significantly improves electrical conductivity through continuous electron transport pathways. Simultaneously, the mechanically robust carbon matrix effectively accommodates silicon’s substantial volumetric fluctuations during lithiation/delithiation cycles, thereby maintaining structural integrity. Furthermore, the introduced nitrogen heteroatoms create abundant redox sites, which substantially reduce the charge transfer resistance and accelerate redox reaction kinetics. The synthetic strategy for the silicon–carbon composite anode demonstrates enhanced lithium-ion storage capabilities, suggesting strong viability for scalable implementation in next-generation LIBs.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13947–13958"},"PeriodicalIF":5.5,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
