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Scalable synthesis of high-purity Ti4N3Tx MXene via saturated salt solution (S3) etching 饱和盐溶液(S3)蚀刻法合成高纯Ti4N3Tx MXene
Advanced Powder Materials Pub Date : 2025-08-22 DOI: 10.1016/j.apmate.2025.100334
Yujin Chae , Shi-Hyun Seok , Yeoseon Sim , Ju-Hyoung Han , Jaeeun Park , Younggeun Jang , Mincheal Kim , Young Ho Jin , EunMi Choi , Zonghoon Lee , Soon-Yong Kwon
{"title":"Scalable synthesis of high-purity Ti4N3Tx MXene via saturated salt solution (S3) etching","authors":"Yujin Chae ,&nbsp;Shi-Hyun Seok ,&nbsp;Yeoseon Sim ,&nbsp;Ju-Hyoung Han ,&nbsp;Jaeeun Park ,&nbsp;Younggeun Jang ,&nbsp;Mincheal Kim ,&nbsp;Young Ho Jin ,&nbsp;EunMi Choi ,&nbsp;Zonghoon Lee ,&nbsp;Soon-Yong Kwon","doi":"10.1016/j.apmate.2025.100334","DOIUrl":"10.1016/j.apmate.2025.100334","url":null,"abstract":"<div><div>Two-dimensional (2D) nitride MXenes are predicted to exhibit exceptional metallic properties and high polarity; however, their synthesis remains challenging. Research has relied on traditional molten salt etching, highlighting the need for a scalable, high-purity approach. Here, we present the first solution-based synthesis of Ti<sub>4</sub>N<sub>3</sub>T<sub><em>x</em></sub> MXene via a novel saturated salt solution (S<sup>3</sup>) etching technique employing alkali metal salts. By optimizing the sintering process for high-purity Ti<sub>4</sub>AlN<sub>3</sub> MAX and refining the S<sup>3</sup> etching route, we significantly reduced the etch pit density to 1.2×10<sup>6</sup> ​cm<sup>−2</sup> and lowered the etch pit formation rate to 4 ​%, yielding high-quality, phase-pure Ti<sub>4</sub>N<sub>3</sub>T<sub><em>x</em></sub> MXene. Our study highlights the critical role of alkali metal ions in selective A-layer removal and demonstrates the impressive electrical conductivity and electromagnetic interference shielding performance of 2D nitride MXene, setting a new benchmark for this underexplored material. These findings pave the way for advancing 2D nitride MXenes and their diverse applications.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 6","pages":"Article 100334"},"PeriodicalIF":0.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045506","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}
引用次数: 0
Interfacial electric field effects enhance the kinetics and stability of magnesium metal anodes for rechargeable magnesium batteries 界面电场效应增强了可充电镁电池金属镁阳极的动力学和稳定性
Advanced Powder Materials Pub Date : 2025-08-21 DOI: 10.1016/j.apmate.2025.100335
Qi Sun , Shaohua Luo , Yicheng Lin , Xin Yan , Rui Huang , Qiuyue Liu , Shengxue Yan , Xiaoping Lin
{"title":"Interfacial electric field effects enhance the kinetics and stability of magnesium metal anodes for rechargeable magnesium batteries","authors":"Qi Sun ,&nbsp;Shaohua Luo ,&nbsp;Yicheng Lin ,&nbsp;Xin Yan ,&nbsp;Rui Huang ,&nbsp;Qiuyue Liu ,&nbsp;Shengxue Yan ,&nbsp;Xiaoping Lin","doi":"10.1016/j.apmate.2025.100335","DOIUrl":"10.1016/j.apmate.2025.100335","url":null,"abstract":"<div><div>Rechargeable magnesium batteries (RMBs) are considered promising candidates for next–generation energy storage systems due to their high theoretical capacity. However, the non–uniform deposition/stripping behavior of Mg metal hinders the practical application of RMBs. This study demonstrates that the designed interfacial electric field effect, driven by a copper phthalocyanine (CuPc) conductive interlayer, enhances the kinetics and stability of the Mg anode. In situ electrochemical impedance spectroscopy coupled with distribution of relaxation times analysis reveals that the highly delocalized electron cloud network of CuPc establishes a low-energy-barrier electron transport pathway, significantly reducing charge transfer resistance. Electrochemical characterization and density functional theory calculations indicate that the interfacial electric field effect effectively improves interfacial Mg<sup>2+</sup> diffusion by enhancing electron delocalization and reducing the Mg<sup>2+</sup> migration energy barrier. Furthermore, finite element simulations substantiate that the interfacial electric field imparts uniform interfacial charge distribution and homogeneous Mg deposition during plating/stripping processes. Consequently, the symmetric cell with CuPc@Mg achieves an ultra-long lifetime (1,400 ​h at 5 ​mA ​cm<sup>−2</sup>) and a high Coulombic efficiency (99.3%). Furthermore, the CuPc@Mg||Mo<sub>6</sub>S<sub>8</sub> cell achieves high capacity retention (92%). This work highlights the potential of metal phthalocyanines in stabilizing Mg anodes.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100335"},"PeriodicalIF":0.0,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010625","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}
引用次数: 0
Machine learning application in thermal CO2 hydrogenation: Catalyst design, process optimization, and mechanism insights 机器学习在CO2热加氢中的应用:催化剂设计、工艺优化和机理洞察
Advanced Powder Materials Pub Date : 2025-08-20 DOI: 10.1016/j.apmate.2025.100333
Rasoul Salami , Tianlong Liu , Xue Han , Ying Zheng
{"title":"Machine learning application in thermal CO2 hydrogenation: Catalyst design, process optimization, and mechanism insights","authors":"Rasoul Salami ,&nbsp;Tianlong Liu ,&nbsp;Xue Han ,&nbsp;Ying Zheng","doi":"10.1016/j.apmate.2025.100333","DOIUrl":"10.1016/j.apmate.2025.100333","url":null,"abstract":"<div><div>The growing demand for carbon neutrality has heightened the focus on CO<sub>2</sub> hydrogenation as a viable strategy for transforming carbon dioxide into valuable chemicals and fuels. Advanced machine learning (ML) approaches integrate materials science with artificial intelligence, enabling scientists to identify hidden patterns in datasets, make informed decisions, and reduce the need for labor-intensive, repetitive experimentation. This review provides a comprehensive overview of ML applications in the thermocatalytic hydrogenation of CO<sub>2</sub>. Following an introduction to ML tools and workflows, various ML algorithms employed in CO<sub>2</sub> hydrogenation are systematically categorized and reviewed. Next, the application of ML in catalyst discovery is discussed, highlighting its role in identifying optimal compositions and structures. Then, ML-driven strategies for process optimization, particularly in enhancing CO<sub>2</sub> conversion and product selectivity, are examined. Studies modeling descriptors, spanning catalyst properties and reaction conditions, to predict catalytic performance are analyzed. Consequently, ML-based mechanistic studies are reviewed to elucidate reaction pathways, identify key intermediates, and optimize catalyst performance. Finally, key challenges and future perspectives in leveraging ML for advancing CO<sub>2</sub> hydrogenation research are presented.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 6","pages":"Article 100333"},"PeriodicalIF":0.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045505","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}
引用次数: 0
In-situ alloying interface inducing Zn(002) texture towards stable high-utilization zinc anodes 原位合金化界面诱导Zn(002)织构形成稳定的高利用率锌阳极
Advanced Powder Materials Pub Date : 2025-08-09 DOI: 10.1016/j.apmate.2025.100332
Xiancheng Bu , Mingzhu Li , Zhexuan Liu , Shuquan Liang , Guozhao Fang
{"title":"In-situ alloying interface inducing Zn(002) texture towards stable high-utilization zinc anodes","authors":"Xiancheng Bu ,&nbsp;Mingzhu Li ,&nbsp;Zhexuan Liu ,&nbsp;Shuquan Liang ,&nbsp;Guozhao Fang","doi":"10.1016/j.apmate.2025.100332","DOIUrl":"10.1016/j.apmate.2025.100332","url":null,"abstract":"<div><div>Aqueous zinc ion batteries (AZIBs) have emerged as a promising energy storage technology due to their high safety and low cost. However, the practical application of AZIBs is severely hindered by unstable Zn anodes especially under high depth of discharge (DOD). This study proposes an <em>in-situ</em> interface alloying engineering based on Ce<sup>3+</sup> additive to regulate Zn deposition behaviors, significantly enhancing the cycling stability and reversibility of Zn anodes. Ce<sup>3+</sup> undergoes <em>in-situ</em> formation of ZnCe alloy on Zn anode interface, inducing preferential deposition of dense Zn (002) plane and effectively mitigating concentration polarization. Zn//Zn symmetric cells with Ce<sup>3+</sup> electrolytes achieve stable cycling for 3000 ​h at 1 ​mA ​cm<sup>−2</sup> and deliver a cumulative capacity of 27 Ah cm<sup>−2</sup> (5400 ​h) at a high current density of 5 ​mA ​cm<sup>−2</sup>. Even under a high DOD of 68.4%, it maintains stable cycling for 420 ​h. Full cells with a low Negative/Positive capacity (N/P) ratio of 4.30 and high cathode loading of 10 ​mg ​cm<sup>−2</sup> can stably cycle over 1000 cycles at 2 ​A ​g<sup>−1</sup>. Furthermore, an 80 ​mAh-level pouch cell with N/P ratio of 4.68 retains 85% capacity after 100 cycles. This article provides new insights into the interfacial engineering for practical AZIBs.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100332"},"PeriodicalIF":0.0,"publicationDate":"2025-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003852","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}
引用次数: 0
Machine learning-driven insights into the microstructure and properties of high-entropy alloys 机器学习驱动的高熵合金微观结构和性能研究
Advanced Powder Materials Pub Date : 2025-08-05 DOI: 10.1016/j.apmate.2025.100331
Xiaoyi Zhang , Wenhan Zhou , Xiang Li , Tong Xu , Yongzhen Yu , Lei Zheng , Guanhua Jin , Shengli Zhang
{"title":"Machine learning-driven insights into the microstructure and properties of high-entropy alloys","authors":"Xiaoyi Zhang ,&nbsp;Wenhan Zhou ,&nbsp;Xiang Li ,&nbsp;Tong Xu ,&nbsp;Yongzhen Yu ,&nbsp;Lei Zheng ,&nbsp;Guanhua Jin ,&nbsp;Shengli Zhang","doi":"10.1016/j.apmate.2025.100331","DOIUrl":"10.1016/j.apmate.2025.100331","url":null,"abstract":"<div><div>High entropy alloys (HEAs) have recently become a popular category of alloys, composed of five or more elements. These alloys are of particular interest in the field of materials due to their unique structure and excellent properties. However, the multi-component nature of these alloys poses challenges to traditional calculation methods, necessitating the development of alternative approaches for their analysis. Machine learning, a branch of artificial intelligence, has emerged as a promising solution to address the complexity inherent in the composition and structure of HEAs. The present review focuses on the fundamental definition and process of machine learning and its application in the research field of HEAs. The primary focus of this research field is the prediction of phase structure, hardness, strength, thermodynamic properties, and catalytic properties. In addition, future perspectives on the challenges in this research area are also presented.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100331"},"PeriodicalIF":0.0,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988241","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}
引用次数: 0
Single-atom catalysts supported on atomically thin materials for water splitting 单原子催化剂支持的原子薄材料水分解
Advanced Powder Materials Pub Date : 2025-07-24 DOI: 10.1016/j.apmate.2025.100330
Xiaomin Chen , Ding Yuan , Chao Rong , Chao Wu , Porun Liu , Hua Kun Liu , Dingsheng Wang , Shi Xue Dou , Yuhai Dou
{"title":"Single-atom catalysts supported on atomically thin materials for water splitting","authors":"Xiaomin Chen ,&nbsp;Ding Yuan ,&nbsp;Chao Rong ,&nbsp;Chao Wu ,&nbsp;Porun Liu ,&nbsp;Hua Kun Liu ,&nbsp;Dingsheng Wang ,&nbsp;Shi Xue Dou ,&nbsp;Yuhai Dou","doi":"10.1016/j.apmate.2025.100330","DOIUrl":"10.1016/j.apmate.2025.100330","url":null,"abstract":"<div><div>Single-atom catalysts (SACs) have demonstrated exceptional performance in electrocatalytic water splitting, owing to their maximized atomic utilization efficiency and superior reaction kinetics. The incorporation of SACs typically depends on robust metal-support interactions, which stabilize the single atoms on the support through various unsaturated chemical sites or spatial confinement. A critical challenge lies in precisely modulating the electronic structure and coordination environment of metal atoms. However, current research primarily focuses on single-atom metals, often neglecting the significant role of support materials in SACs. Two-dimensional (2D) atomically thin materials (ATMs) possess unique physicochemical properties and tunable reaction environments, which can modulate catalytic performance via metal-support interactions, positioning them as promising platforms for SAC loading. This paper reviews the recent advancements and the current status of SACs supported on 2D ATMs (SACs@ATMs). The structural design theory and synthesis strategies of SACs@ATMs are systematically discussed. The significance of advanced characterization techniques in elucidating the coordination environment and metal-support interactions is highlighted. Additionally, the reaction mechanisms and applications of SACs in electrocatalytic water splitting are summarized. Finally, the future challenges and opportunities for SACs@ATMs are outlined. This paper aims to provide insights and guidance for the rational design of SACs@ATMs with high-performance electrocatalytic water splitting capabilities.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100330"},"PeriodicalIF":0.0,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144932151","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}
引用次数: 0
High-entropy type Fe-Ni-P-O-C amorphous Nanospheres: Remarkable Fe-ion migration induced efficient surface reconstruction for oxygen evolution reaction 高熵型Fe-Ni-P-O-C非晶纳米球:显著的铁离子迁移诱导出氧反应的高效表面重构
Advanced Powder Materials Pub Date : 2025-07-22 DOI: 10.1016/j.apmate.2025.100329
Shiliu Yang , Xinhe Liu , Xunlu Wang , Yan Lin , Sina Cheng , Hongyang Gao , Fan Zhang , Li Li , Jiabiao Lian , Ulla Lassi , Ruguang Ma
{"title":"High-entropy type Fe-Ni-P-O-C amorphous Nanospheres: Remarkable Fe-ion migration induced efficient surface reconstruction for oxygen evolution reaction","authors":"Shiliu Yang ,&nbsp;Xinhe Liu ,&nbsp;Xunlu Wang ,&nbsp;Yan Lin ,&nbsp;Sina Cheng ,&nbsp;Hongyang Gao ,&nbsp;Fan Zhang ,&nbsp;Li Li ,&nbsp;Jiabiao Lian ,&nbsp;Ulla Lassi ,&nbsp;Ruguang Ma","doi":"10.1016/j.apmate.2025.100329","DOIUrl":"10.1016/j.apmate.2025.100329","url":null,"abstract":"<div><div>Amorphous transition metal compounds (<em>a</em>-TMC) become one of the most promising pre-catalysts toward oxygen evolution reaction (OER) due to their high-entropy nature and flexible self-reconstruction to highly active derivatives. However, the loosen bonds inside the amorphous structure make it an electronic insulator with unstable structure. Here, monodispersed Ni<sup>2+</sup>-phytate nanospheres implanted by Fe<sup>3+</sup> ions (NS<sub>FeNiPA</sub>) were firstly prepared and subsequently transferred into homogeneous high-entropy type Fe-Ni-P-O-C amorphous nanospheres (CNS<sub>FeNiPO</sub>). It is shown that the CNS<sub>FeNiPO</sub> presents robust structure and remarkable Fe ions migration during potential-driven activation process, which benefits efficient surface reconstruction and spherical morphology preservation. The CNS<sub>FeNiPO</sub> with low mass loading of 0.1 ​mg/cm<sup>2</sup> could deliver small overpotential of 270 ​mV at 10 ​mA ​cm<sup>−2</sup> and almost 100% retention of the initial current density after 10 ​h test. The improved electrocatalytic activity is attributed to the boosted electron transfer from Ni sites to O-containing intermediates by introduction of Fe and P atoms. Moreover, rechargeable Zn-air battery with CNS<sub>FeNiPO</sub> ​+ ​Pt/C could achieve lower charge potential platform and better cycling performance than that with commercial RuO<sub>2</sub>+Pt/C. This work provides new insights into the design and understanding of high-entropy amorphous pre-catalysts toward OER.</div></div>","PeriodicalId":7283,"journal":{"name":"Advanced Powder Materials","volume":"4 5","pages":"Article 100329"},"PeriodicalIF":0.0,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144770793","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}
引用次数: 0
Submonolayered Ru-modified Pd mesoporous nanosheets as multifunctional electrocatalyst for hydrogen evolution and alcohol oxidation reactions 亚单层ru修饰Pd介孔纳米片作为析氢和醇氧化反应的多功能电催化剂
Advanced Powder Materials Pub Date : 2025-07-09 DOI: 10.1016/j.apmate.2025.100320
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 ,&nbsp;Chaoqun Ma ,&nbsp;Biao Huang ,&nbsp;Dengke Zhao ,&nbsp;Fukai Feng ,&nbsp;Sumei Han ,&nbsp;Nailiang Yang ,&nbsp;Qipeng Lu ,&nbsp;Yiyao Ge ,&nbsp;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}
引用次数: 0
Second-phase composite engineering endows Gd3TaO7-based ceramic with broadband infrared radiation 二期复合工程使gd3tao7基陶瓷具有宽带红外辐射
Advanced Powder Materials Pub Date : 2025-07-04 DOI: 10.1016/j.apmate.2025.100318
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 ,&nbsp;Shuqi Wang ,&nbsp;Guoliang Chen ,&nbsp;Yongchun Zou ,&nbsp;Jianghong Zhang ,&nbsp;Yaming Wang ,&nbsp;Qingyuan Zhao ,&nbsp;Zijian Peng ,&nbsp;Junteng Yao ,&nbsp;Jiahu Ouyang ,&nbsp;Dechang Jia ,&nbsp;Yu Zhou ,&nbsp;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}
引用次数: 0
Photo-assisted Li/Zn-air batteries and supercapacitors: material design, working mechanism and challenges 光辅助锂/锌空气电池和超级电容器:材料设计、工作机理和挑战
Advanced Powder Materials Pub Date : 2025-06-27 DOI: 10.1016/j.apmate.2025.100316
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 ,&nbsp;Xinyu Li ,&nbsp;Zhaoming Fu ,&nbsp;Yu Lin Zhong ,&nbsp;Guangzhi Hu ,&nbsp;Ting Zhu ,&nbsp;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}
引用次数: 0
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