Xinran Jiao , Chaoqun Ma , Biao Huang , Dengke Zhao , Fukai Feng , Sumei Han , Nailiang Yang , Qipeng Lu , Yiyao Ge , Qian Xu
{"title":"Submonolayered Ru-modified Pd mesoporous nanosheets as multifunctional electrocatalyst for hydrogen evolution and alcohol oxidation reactions","authors":"Xinran Jiao , Chaoqun Ma , Biao Huang , Dengke Zhao , Fukai Feng , Sumei Han , Nailiang Yang , Qipeng Lu , Yiyao Ge , Qian Xu","doi":"10.1016/j.apmate.2025.100320","DOIUrl":"10.1016/j.apmate.2025.100320","url":null,"abstract":"<div><div>The structural modulation of metal-based heterostructure plays a vital role in achieving enhanced performances for highly efficient electrocatalysis. Here we design submonolayered Ru-modified Pd mesoporous nanosheets (Pd-Ru MNSs) with the exposure of both Pd and Ru active sites as well as the high atomic utilization of two-dimensional structure. The obtained Pd-Ru MNSs can act as a highly efficient multifunctional catalyst for hydrogen evolution reaction (HER) and alcohol oxidation reactions including ethylene glycol oxidation (EGOR) and ethanol oxidation (EOR), offering new opportunities towards the alcohol oxidation assisted hydrogen production. Specifically, Pd-Ru MNSs demonstrate excellent HER performance in alkaline electrolyte, requiring an overpotential of only 16 mV to reach 10 mA cm<sup>−2</sup>, significantly outperforming Pd mesoporous nanosheets and commercial catalysts. Density functional theory calculations reveal that the Ru sites in Pd-Ru MNSs could facilitate the water adsorption, accelerate the water dissociation, and optimize the hydrogen desorption, leading to the superior HER activity. Pd-Ru MNSs also exhibit high mass activities of 11.19 A mg<sup>−1</sup><sub>Pd</sub> for EGOR and 8.84 A mg<sup>−1</sup><sub>Pd</sub> for EOR, which is 7.8 and 9.6 times than that of commercial Pd/C, respectively. The EGOR reaction pathway over Pd-Ru MNSs was further investigated by using <em>in situ</em> Fourier-transform infrared spectroscopy.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100320"},"PeriodicalIF":0.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Enyu Xie , Shuqi Wang , Guoliang Chen , Yongchun Zou , Jianghong Zhang , Yaming Wang , Qingyuan Zhao , Zijian Peng , Junteng Yao , Jiahu Ouyang , Dechang Jia , Yu Zhou , Valentina L. Stolyarova
{"title":"Second-phase composite engineering endows Gd3TaO7-based ceramic with broadband infrared radiation","authors":"Enyu Xie , Shuqi Wang , Guoliang Chen , Yongchun Zou , Jianghong Zhang , Yaming Wang , Qingyuan Zhao , Zijian Peng , Junteng Yao , Jiahu Ouyang , Dechang Jia , Yu Zhou , Valentina L. Stolyarova","doi":"10.1016/j.apmate.2025.100318","DOIUrl":"10.1016/j.apmate.2025.100318","url":null,"abstract":"<div><div>High-temperature infrared (IR) radiation materials with broadband high emissivity, low thermal conductivity, and high fracture toughness are urgently needed for radiative heat management. Here, we report a Gd<sub>3</sub>TaO<sub>7</sub>/GdFeO<sub>3</sub> composite ceramic that integrates a broadband (0.78–14 μm) high emissivity (close to 0.9), low thermal conductivity (1.62 W m<sup>−1</sup> K<sup>−1</sup>), and fracture toughness (2.3 MPa m<sup>1/2</sup>, close to YSZ). Through the introduction of second-phase GdFeO<sub>3</sub>, many lattice distortions, multimode vibrations, and additional oxygen vacancies (O<sub>v</sub>) contribute to an increase in the broad-band emissivity of the composite ceramics (especially in the 2.5–6 μm band, nearly 5 times greater than that of Gd<sub>3</sub>TaO<sub>7</sub>). This high IR emissivity significantly suppresses the elevated photonic thermal conductivity at high temperatures, resulting in ultralow thermal conductivity. Moreover, the stable atomic arrangement within the two phases contributed to the impressive high-temperature stability (1773 K, 200 h). The improved fracture toughness is attributed primarily to the presence of the second phase promoting crack tip deflection, bridging and branching, which prevent crack expansion. All the advantages render this second-phase composite strategy fully competitive in the development of a new generation of superhigh-temperature radiative heat management materials.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100318"},"PeriodicalIF":0.0,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Arif , Xinyu Li , Zhaoming Fu , Yu Lin Zhong , Guangzhi Hu , Ting Zhu , Xiaobo Feng
{"title":"Photo-assisted Li/Zn-air batteries and supercapacitors: material design, working mechanism and challenges","authors":"Muhammad Arif , Xinyu Li , Zhaoming Fu , Yu Lin Zhong , Guangzhi Hu , Ting Zhu , Xiaobo Feng","doi":"10.1016/j.apmate.2025.100316","DOIUrl":"10.1016/j.apmate.2025.100316","url":null,"abstract":"<div><div>In recent years, photo-powered energy storage devices have attracted considerable research attention due to their potential applications in smart electronics. In this review, we present a comprehensive summary of recent developments in two distinct but highly promising energy storage technologies, photo-assisted metal-air batteries and photo-supercapacitors. The section on metal-air batteries primarily describes the electrochemical performance of Zn-air and Li-air systems, innovative photo-electrode designs, and mechanisms that enhance oxygen evolution and reduction reactions. A brief discussion is also provided of other metal-air systems, including Mg, Fe, and Al. In contrast, the section on photo-supercapacitors explores recent advancements in light-driven charge storage, electrode materials, and device architectures, presenting a comparative performance analysis of materials such as metal oxides, sulfides, and perovskites. Various critical challenges, including material stability, efficiency under varying light conditions, and scalability, are also thoroughly examined. Despite their different working principles, both technologies hold great potential to increase energy efficiency and sustainability through the use of photo-assisted processes. The purpose of this review is to bridge existing knowledge gaps and propose future directions for research in these emerging fields.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100316"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Peng Hu , Yijie Gao , Hexiong Liu , Yunfei Yang , Qinqin Zhou , Jung-Sik Kim , Yaowu Hao , Jinshu Wang
{"title":"Accelerated sintering and microstructural regulation of tungsten powder compact by novel modulation of particle configuration","authors":"Peng Hu , Yijie Gao , Hexiong Liu , Yunfei Yang , Qinqin Zhou , Jung-Sik Kim , Yaowu Hao , Jinshu Wang","doi":"10.1016/j.apmate.2025.100317","DOIUrl":"10.1016/j.apmate.2025.100317","url":null,"abstract":"<div><div>Increasing the sintering rate of powder compact is a critical challenge of powder metallurgical materials, and adjusting component distribution in particles aggregate present significant effect on the microstructure of sintered product, especially for multi-phase compact with local heterogeneity. Here, a case study of W–Ni–Co powder compact was adopted to illustrate the novel strategy to enhance the sintering of multi-phase compact with desired microstructure by adjusting the particle configurations. The plasma synthesis route was developed for the first time to independently adjust the configurations of W–Ni–Co nanopowders with core-shell and homogeneous structures, which facilitates to ascertain the sintering response induced exclusively by particle configurations. Comparison on sintering response further indicates that core-shell powder presents greatly promoted sintering than homogeneous one, and full-dense and uniform compact with grain size of 1.37 μm was obtained by solid sintering, which is several to dozens of times smaller than that obtained by conventional liquid sintering. Theoretical and experimental Investigation on elemental immigration visualized the distinct mass diffusion behavior of powder compacts, and clarified the mass transport path promoted densification mechanism determined by powder configurations. Importantly, full-coherent phase interface induced superior strength and plasticity in alloy sintered using core-shell powder, which highlights the importance of microstructural regulation on improving the mechanical property that superior than most of previously reported tungsten heavy alloys. In summary, this work paves a new way for fast sintering of multi-phase compacts, and provides intrinsic understandings on densification mechanism of powder compact.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100317"},"PeriodicalIF":0.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xinran Zheng , Yuchao Wang , Jianping Guan , Xu Liu , Yu Bai , Yingbi Chen , Peiyao Yang , Jing Zhang , Houzheng Ou , Meng Wang , Yu Xiong , Haozhi Wang , Yongpeng Lei
{"title":"High-loading inducing Fe-dimer on carbon nitride promotes the generation of ·O2−","authors":"Xinran Zheng , Yuchao Wang , Jianping Guan , Xu Liu , Yu Bai , Yingbi Chen , Peiyao Yang , Jing Zhang , Houzheng Ou , Meng Wang , Yu Xiong , Haozhi Wang , Yongpeng Lei","doi":"10.1016/j.apmate.2025.100308","DOIUrl":"10.1016/j.apmate.2025.100308","url":null,"abstract":"<div><div>The research on metal dimer clusters is of great importance, owing to the potential in modulating the adsorption behavior towards reaction intermediates. Here, we develop a loading heightening strategy to obtain a 32.5 wt% Fe-dimer catalyst (Fe-32.5). The co-anchoring of two Fe atoms in a single triazine ring of carbon nitride with an atomic spacing of ∼0.23 nm is proved. Fe atoms occupy the pores of the triazine ring in the lower iron content sample (Fe-12.9 and Fe-17.1). However, with the increase of iron content to 32.5 wt%, two Fe atoms simultaneously occupy one triazine ring. For Fe-32.5, besides the main peak located at ∼1.5 Å corresponding to the Fe–N interaction, a peak attributed to Fe–Fe bonding is observed at ∼2.2 Å in Fourier-transformed k<sup>3</sup>-weithted extended X-ray absorption fine structure. Density functional theoretical calculations reveal that Fe-dimer in Fe-32.5 induces a charge redistribution compared with that in Fe-12.9 and Fe-17.1. H<sub>2</sub>O∗ is adsorbed on O∗ via hydrogen bonding in Fe-12.9 and Fe-17.1. However, H<sub>2</sub>O∗and O∗ in Fe-32.5 are adsorbed on Fe–Fe dimer, resulting in a decrease in the total energy of the reaction process. For the two former, O<sub>2</sub><sup>−</sup>∗ adsorbs on individual Fe atoms. Fe-dimer in Fe-32.5 adsorbs O<sub>2</sub><sup>−</sup>∗ in the form of bridge bonds, which facilitates the ·O<sub>2</sub><sup>−</sup> release. Furthermore, an enhanced affinity for the substrate 3,3′,5,5′-tetramethylbenzidine and higher peroxidase-like activity were displayed. This work provides an effective mean to synthesize metal dimer clusters through high loading.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100308"},"PeriodicalIF":0.0,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tailored fluoroborate-based electrolyte with fast interphase formation kinetics toward stable Ah-level zinc batteries","authors":"Jiangtao Huang , Yunpeng Zhong , Najla AlMasoud , Taghrid S. Alomar , Yiman Xie , Bingan Lu , Shuquan Liang , Zeinhom M. El-Bahy , Siyu Tian , Jiang Zhou","doi":"10.1016/j.apmate.2025.100306","DOIUrl":"10.1016/j.apmate.2025.100306","url":null,"abstract":"<div><div>Solid electrolyte interphase (SEI) plays a critical role in stabilizing zinc batteries, yet insufficient attention has been given to its in-situ growth kinetics and the post-stripping morphology of zinc anodes, both affecting the SEI-forming quality. Herein, we showcase a synergistic effect between uniform Zn stripping and rapid SEI formation through introducing tetramethylurea (TMU) into Zn(BF<sub>4</sub>)<sub>2</sub>-based electrolytes. TMU participates in the Zn<sup>2+</sup> solvation structure and reshapes the electrolyte hydrogen-bond network, enabling a water-poor electric double layer that mitigates the corrosion-induced stripping inhomogeneity. Subsequently, a multi-component and inorganic-rich SEI with high uniformity is rapidly deposited during the plating process. This SEI with abundant zincophilic sites activates instantaneous nucleation and hence guides dense and uniform Zn deposition. With enhanced Zn stripping/plating symmetry, the long-term effectiveness of SEI is guaranteed, contributing to the high reversibility over 3200 h at 1 mA cm<sup>−2</sup>/2 mAh cm<sup>−2</sup>. Impressively, the Zn//NaV<sub>3</sub>O<sub>8</sub> full cell (4.43 mAh cm<sup>−2</sup>) can be steadily cycled at 0.1 A g<sup>−1</sup> under an intermittent-rest protocol. The stable operation of an Ah-level pouch cell over 100 cycles further demonstrates the scalability of this strategy and highlights the significance of achieving high stripping/plating symmetry and a long-term effective SEI toward practical zinc batteries.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 4","pages":"Article 100306"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144570141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Felix Kwofie , Jinfan Chen , Yujing Liu , Ying Zhang , Junsong Zhang , Yang Yang , Quentin Meyer , Chuan Zhao , Zhenjiang He , Yunjiao Li , Yi Cheng
{"title":"Rare earth-rich sublayer tuned Pd-skin for methanol and CO tolerance oxygen reduction and hydrogen oxidation reaction","authors":"Felix Kwofie , Jinfan Chen , Yujing Liu , Ying Zhang , Junsong Zhang , Yang Yang , Quentin Meyer , Chuan Zhao , Zhenjiang He , Yunjiao Li , Yi Cheng","doi":"10.1016/j.apmate.2025.100305","DOIUrl":"10.1016/j.apmate.2025.100305","url":null,"abstract":"<div><div>Storing hydrogen in green methanol is a well-known and cost-effective way for long-term energy storage. However, using green methanol in fuel cell technologies requires electrocatalysts with superior resistance to poisoning induced by intermediate species. This study introduces a new class of palladium-based rare earth (RE) alloys with exceptional resistance to methanol for the oxygen reduction reaction (ORR) and outstanding resistance to carbon monoxide poisoning for the hydrogen oxidation reaction (HOR). The PdEr catalyst achieved unparalleled ORR activity amongst the Pd-based rare earth alloys and demonstrated remarkable resistance to methanol poisoning, which is two orders of magnitude higher than commercial Pt/C catalysts. Furthermore, the PdEr catalyst shows high hydrogen oxidation activity under 100 ppm CO. Comprehensive analysis demonstrates that the RE element-enriched sublayer tuning of the Pd-skin's surface strain is responsible for the enhanced ORR and HOR capabilities. This modification allows for precise control over the adsorption strength of critical intermediates while concurrently diminishing the adsorption energy of methanol and CO on the PdEr surface.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 4","pages":"Article 100305"},"PeriodicalIF":0.0,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yu Mo , Jiyue Wu , Wei Liu , Yizheng Bao , Zimeng Hu , Nan Meng , Haitao Huang , Genshui Wang
{"title":"Ultrafast piezocatalytic organic pollutant degradation enabled by dynamic spin state regulation of cobalt in nano-ferroelectrics","authors":"Yu Mo , Jiyue Wu , Wei Liu , Yizheng Bao , Zimeng Hu , Nan Meng , Haitao Huang , Genshui Wang","doi":"10.1016/j.apmate.2025.100307","DOIUrl":"10.1016/j.apmate.2025.100307","url":null,"abstract":"<div><div>Ferroelectric materials are gaining increasing attention for the development of advanced catalytic technologies due to their field-responsive polarization states. However, achieving dynamic optimization of catalytic activity using ferroelectrics remains a fundamental challenge. Inspired by the force-adaptive mechanisms of fish scales, we introduce an intracrystalline force regulation strategy to dynamically control cobalt spin states and enhance peroxymonosulfate (PMS) activation in Fenton-like processes. This approach utilizes BaTi<sub>0.92</sub>Co<sub>0.08</sub>O<sub>3-<em>δ</em></sub> (BTC-8) nano-ferroelectrics, where ultrasound irradiation generates a built-in electric field that drives electrons towards cobalt sites. This electron transfer is further facilitated by electronegativity differences between cobalt and barium/titanium ions. The resulting piezo-driven electron flow promotes continuous regeneration of high-spin Co<sup>2+</sup>, enhancing PMS adsorption and SO<sub>4</sub>-OH bond cleavage, leading to increased production of ·SO<sub>4</sub><sup>−</sup> and singlet oxygen (<sup>1</sup>O<sub>2</sub>) for organic pollutant degradation. Consequently, BTC-8 achieves a reaction rate (<em>k</em>=1.7960 min<sup>−1</sup>) 28.93 times higher than that of pure barium titanate, surpassing previously reported PMS activation and piezocatalytic systems. This work represents a shift from static electronic structure design to dynamic electronic engineering in the development of advanced catalytic strategies for water remediation.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 4","pages":"Article 100307"},"PeriodicalIF":0.0,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ghazanfar Nazir , Adeela Rehman , Jagadis Gautam , Muhammad Ikram , Sajjad Hussain , Sikandar Aftab , Kwang Heo , Seul-Yi Lee , Soo-Jin Park
{"title":"Advancements in flexible Perovskite solar cells and their integration into self-powered wearable optoelectronic systems","authors":"Ghazanfar Nazir , Adeela Rehman , Jagadis Gautam , Muhammad Ikram , Sajjad Hussain , Sikandar Aftab , Kwang Heo , Seul-Yi Lee , Soo-Jin Park","doi":"10.1016/j.apmate.2025.100304","DOIUrl":"10.1016/j.apmate.2025.100304","url":null,"abstract":"<div><div>Driven by rapid advancements in smart wearable technologies and perovskite photovoltaics, flexible perovskite solar cells (FPSCs) have emerged as highly promising autonomous power sources, poised to transform the next generation of mobile energy systems, portable electronics, and integrated wearable devices. For successful deployment in real-world scenarios, FPSCs must exhibit a combination of key attributes, including high power conversion efficiency, lightweight architecture, environmental robustness, and mechanical adaptability—encompassing flexibility, stretchability, and twistability. This review provides a detailed examination of the evolution, current state, and practical deployment of FPSCs, emphasizing their potential as efficient, portable energy solutions. It investigates advanced strategies for improving environmental resilience and mechanical recoverability, including the engineering of flexible substrates, deposition of high-quality perovskite films, and optimization of charge-selective interfaces. Additionally, it offers a systematic analysis of device design, fabrication protocols, scalable printing techniques, and standardized performance evaluation methods tailored for wearable FPSCs. Recent progress in enhancing the optoelectronic properties and mechanical durability of FPSCs is also critically reviewed. Ultimately, this work delivers a comprehensive perspective on FPSCs from both optoelectronic and mechanical viewpoints, identifies key challenges, and outlines future research pathways toward the seamless integration of FPSCs into multifunctional, next-generation wearable systems.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 4","pages":"Article 100304"},"PeriodicalIF":0.0,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Electronic structure regulation inducing robust solid electrolyte interphase for stable anode-free sodium metal batteries","authors":"Peng Xu , Yinghan Liu , Mulan Qin , Fei Huang , Shuquan Liang , Guozhao Fang","doi":"10.1016/j.apmate.2025.100303","DOIUrl":"10.1016/j.apmate.2025.100303","url":null,"abstract":"<div><div>Anode-free sodium metal batteries (AFSMBs) have gained attention as next-generation storage systems with high energy density and cost-effectiveness. However, non-uniform sodium (Na) deposition and an unsteady solid electrolyte interphase (SEI) lead to dendrite-related issues and severe irreversible Na<sup>+</sup> plating/stripping, greatly aggravating their cycle deterioration. In this study, we effectively modified the 3D current collector's electronic structure by introducing Zn-N<sub><em>x</em></sub> active sites (Zn-CNF), which enhances lateral Na<sup>+</sup> diffusion and the Na planar growth, enabling uniform deep Na deposition at an exceptionally high capacity of 10 mA h cm<sup>−2</sup>. Furthermore, the Zn-N<sub><em>x</em></sub> bonds enhance the adsorption capacity of PF<sub>6</sub><sup>−</sup> and contribute to forming a stable inorganic-rich SEI layer. Consequently, Zn-CNF with the electronic structure regulation endows an ultra-low nucleation overpotential (8 mV) and ultra-high Coulombic efficiency of 99.94% over 1,600 cycles. Symmetric cells demonstrate stable Na<sup>+</sup> plating/stripping behavior for more than 4,400 h at 1 mA cm<sup>−2</sup>. Moreover, under high cathode loading (7.97 mg cm<sup>−2</sup>), the AFSMBs achieve a high energy density of 374 W h kg<sup>−1</sup> and retain a high discharge capacity of 82.49 mA h g<sup>−1</sup> with a capacity retention of 80.4% after 120 cycles. This work proposes a viable strategy to achieving high-energy-density AFSMBs.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 4","pages":"Article 100303"},"PeriodicalIF":0.0,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144167033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}