Rare Metals最新文献

{"title":"Constructing urchin-like TiO2 integrated NiPt nanoparticles for boosting the decomposition of hydrazine hydrate","authors":"Shu-Yu Liu,&nbsp;Wen-Ting Ren,&nbsp;Lei-Yun Chen,&nbsp;Jing Xie,&nbsp;Chao Wan,&nbsp;Li-Xin Xu,&nbsp;Sheng-Lai Li,&nbsp;Jia-Pei Wang,&nbsp;Pavel S. Postnikov,&nbsp;Dang-Guo Cheng","doi":"10.1007/s12598-025-03378-9","DOIUrl":"10.1007/s12598-025-03378-9","url":null,"abstract":"<div><p>Chemical hydrogen storage technology is crucial for the widespread use of hydrogen, with significant research progress being made in hydrazine hydrate (N₂H₄·H₂O). However, the efficient decomposition of N₂H₄·H₂O remains a major challenge, hindered by dynamic constraints. To address this, we prepared NiPt nanoparticles deposited onto urchin-like TiO₂ (u-TiO₂) using the impregnation-reduction method, resulting in the NiPt/u-TiO₂ catalyst. Remarkably, the Ni_0.5Pt_0.5/u-TiO₂ catalyst demonstrated 100% H₂ selectivity, ultrahigh catalytic activity and remarkable durability for N₂H₄·H₂O dehydrogenation, with a turnover frequency (TOF) of 115.8 min⁻¹, surpassing that of the corresponding NiPt/commercial TiO₂ (c-TiO₂). Characterization and experimental findings suggest that the remarkable activity may originate from the unique urchin-like structure of the catalyst, along with the synergistic interaction between NiPt metals and the support. This research opens new avenues for designing nanomaterials with morphology advantages for hydrogen evolution reaction.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6331 - 6342"},"PeriodicalIF":11.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Progress in additive manufacturing of nickel-based superalloys: materials, processing, microstructures, properties and alloy design","authors":"Li Gong,&nbsp;Yu-Bo Li,&nbsp;Xiao-Pei Wang,&nbsp;Sai Li,&nbsp;Zhi-Gang Yang,&nbsp;Hao Chen","doi":"10.1007/s12598-025-03247-5","DOIUrl":"10.1007/s12598-025-03247-5","url":null,"abstract":"<div><p>Notable advancements have been made in the additive manufacturing (AM) of aerospace materials, driven by the needs for integrated components with intricate geometries and small-lot production of high-value components. Nickel-based superalloys, pivotal materials for high-temperature bearing components in aeroengines, present significant challenges in the fabrication of complex parts due to their great hardness. Huge attention and rapid progress have been garnered in AM processing of nickle-based superalloys, largely owing to its distinct benefits in the freedom of fabrication and reduced manufacturing life-cycle. Despite extensive research into AM in nickel-based superalloys, the corresponding results and conclusions are scattered attributed to the variety of nickel-based superalloys and complex AM processing parameters. Therefore, there is still a pressing need for a comprehensive and deep understanding of the relationship between the AM processing and microstructures and mechanical performance of nickel-based superalloys. This review introduces the processing characteristics of four primary AM technologies utilized for superalloys and summarizes the microstructures and mechanical properties prior to and post-heat treatments. Additionally, this review presents innovative superalloys specifically accommodated to AM processing and offers insights into the material development and performance improvement, aiming to provide a valuable assessment on AM processing of nickel-based superalloys and an effective guidance for the future research.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 10","pages":"7041 - 7087"},"PeriodicalIF":11.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12598-025-03247-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Organic molecules intercalated hydrated vanadium oxide with bifunctional of hydrophobicity and pillar in aqueous zinc-ion batteries","authors":"Bing-Bing Hu,&nbsp;Dong-Shan Li,&nbsp;Hao Cheng,&nbsp;Pan-Pan Wang,&nbsp;Xin-Yao Yang,&nbsp;Mei-Xin Li,&nbsp;Hong Pu,&nbsp;Guang-Qiang Ma,&nbsp;Chun-Sheng Li,&nbsp;Yan Sun,&nbsp;Zhi Li","doi":"10.1007/s12598-025-03311-0","DOIUrl":"10.1007/s12598-025-03311-0","url":null,"abstract":"<div><p>The issue of water molecule activity in aqueous zinc-ion batteries presents a significant challenge. During the charging and discharging process, the strong polarity of water molecules tends to cause the dissolution of cathode materials, which reduces the cycle stability and specific capacity, consequently limiting the practical application of zinc-ion batteries. In this work, hydroxypropyl β-cyclodextrin (HP-β-CD), a special stereo cyclic organic molecule with hydrophobic inner cavity and hydrophilic outer cavity, is used as the intercalator for hydrated vanadium oxide (VOH) to enlarge the layer spacing and enhance the hydrophobicity of the cathode material. The larger interlayer spacing (13.9 Å) of HP-β-CD-VOH is beneficial for improving ion mobility and the intrinsic electrochemical reaction kinetics. HP-β-CD- VOH delivers a discharge capacity of 336.7 mAh g⁻¹ at 0.2 A g⁻¹ and high-rate capability (242 mAh g⁻¹ at 5 A g⁻¹). Due to the hydrophobic property of HP-β-CD in the interlayer pillar, the vanadium dissolution effect of polar water molecules can be reduced during charge and discharge; HP-β-CD-VOH demonstrates sustained high efficiency and extended cycle longevity, maintaining a remarkable durability of 6000 cycles at a current density of 10 A g⁻¹. This study presents an effective strategy for developing high-performance aqueous zinc-ion battery cathode materials.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 10","pages":"7209 - 7219"},"PeriodicalIF":11.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly efficient lanthanide-doped theranostic nanoplatform for real-time monitoring of direct triplet-sensitized photodynamic therapy","authors":"Shan-Shan Zhou,&nbsp;Jian-Xi Ke,&nbsp;Yuan-Chao Lei,&nbsp;Li-Xiang Ye,&nbsp;Yong-Sheng Liu,&nbsp;Mao-Chun Hong","doi":"10.1007/s12598-025-03340-9","DOIUrl":"10.1007/s12598-025-03340-9","url":null,"abstract":"<div><p>Photodynamic therapy (PDT) is widely used in cancer treatment because of its noninvasiveness and minimal side effects. However, low therapeutic efficiency and the challenge of treatment visualization limit its development. Herein, we constructed a simple yet efficient lanthanide-doped theranostic nanoplatform termed as LiLuF₄:Yb,Er,Ce@ LiYF₄@LiLuF₄: Nd-chlorine 6 (TNPs-Ce6) that enables real-time monitoring of the therapeutic effects of PDT. Upon orthogonal excitation by near-infrared (NIR) light, the Nd³⁺-doped TNPs activated the triplets of Ce6 photosensitizers via a direct lanthanide-triplet energy transfer process, which allowed to directly active the low-lying triplet state of the photosensitizer without undergoing singlet–triplet intersystem crossing (ISC) process, thereby significantly enhancing the efficiency of the photodynamic process. Meanwhile, the incorporation of Er³⁺ ions within the core endowed the nanoplatform with NIR-IIb imaging capabilities, allowing convenient real-time monitoring of the photodynamic treatment process. Characterization tests revealed that the TNPs-Ce6 nanoplatform, exhibiting an NIR quantum yield of 21.7% at an ultralow excitation power density of 0.1 W cm⁻², provides a real-time imaging resolution as low as 75 μm in the NIR-IIb range and achieves a tumor suppression rate of 94%. Therefore, this highly efficient theranostic nanoplatform, with real-time treatment monitoring capability, demonstrates significant potential in cancer therapy.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 10","pages":"7527 - 7538"},"PeriodicalIF":11.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in optoelectronic synapses: from advanced materials to neuromorphic applications","authors":"Fengmei Su,&nbsp;Zongyao Wang,&nbsp;Jiawei Wan,&nbsp;Dan Wang","doi":"10.1007/s12598-025-03433-5","DOIUrl":"10.1007/s12598-025-03433-5","url":null,"abstract":"<div><p>Inspired by the visual neurons of biological systems, optoelectronic synaptic devices integrate photoresponsive semiconductor materials to convert light into electrical signals, enabling biomimetic visual perception systems. Achieving memory retention and intelligent perceptual functions continues to pose a major hurdle in the advancement of neuromorphic artificial synapse devices. This review begins with an exploration of biological neural synapses, analyzing the fundamental characteristics and structures of biomimetic optoelectronic synapses. It then delves into the design of device and material structures to achieve postsynaptic current and memory behavior, elucidating their underlying mechanisms. Furthermore, the latest application scenarios of these devices are summarized, highlighting the opportunities and challenges in their future development. This review aims to provide a comprehensive understanding of the advancements in optoelectronic synapses, from material innovations to neuromorphic applications, paving the way for next-generation artificial visual systems and neuromorphic computing.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 10","pages":"6807 - 6838"},"PeriodicalIF":11.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accelerated generation and activation of H2O2 by the synergetic effect of pyridine-N protonation and Co0 species toward efficient electro-Fenton","authors":"Miao Tian,&nbsp;Shi-Long Li,&nbsp;Ye Chen,&nbsp;Cong-Xin Xia,&nbsp;Ya-Xin Guo,&nbsp;Jia-Yao Qiu,&nbsp;Xu-Po Liu,&nbsp;Xin Chen,&nbsp;Yang Lu,&nbsp;Shi-Xue Dou","doi":"10.1007/s12598-025-03383-y","DOIUrl":"10.1007/s12598-025-03383-y","url":null,"abstract":"<p>Designing highly effective cathodic catalysts that can efficiently generate H₂O₂ in situ and promptly convert it to hydroxyl radicals (·OH) poses a significant challenge within the heterogeneous electro-Fenton (EF) systems. Herein, we fabricate a bifunctional core–shell catalyst featuring Co⁰ species encapsulated within N, P-codoped carbon shells through a hydrothermal-pyrolysis strategy, utilizing bamboo shoots as biomass-derived precursors. Density functional theory (DFT) calculations elucidate that the protonation of pyridinic nitrogen modifies the adsorption energy of the OOH* intermediate, positioning it optimally at the peak (3.81 eV) on the two-electron oxygen reduction reaction (2e⁻ ORR) volcano plot, thereby significantly boosting H₂O₂ production. Moreover, the Co⁰ species embedded within the catalyst function as electron donors, catalyzing the activation of H₂O₂ to produce ·OH by efficiently facilitating the transfer of electrons to Fe³⁺. Consequently, the synthesized catalyst exhibits a minimum electron transfer number of 2.06 and a maximum H₂O₂ selectivity of 97.4%. Moreover, the degradation for the methylene blue solution exceeds 95% within 15 min, with only an 11.3% reduction in degradation efficiency after 180 min of continuous operation (9 cycles). This bifunctional catalyst design provides valuable insights that can accelerate the development of EF-based degradation systems.</p>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 10","pages":"7418 - 7429"},"PeriodicalIF":11.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The design of core–shell-structured Fe@Sm2Fe17 dual magnetic nanoparticles for high-performance electromagnetic wave absorption","authors":"Yiming Li,&nbsp;Guifang Zheng,&nbsp;Ke Yang,&nbsp;Xiaobai Wang,&nbsp;Yuanfei Yang,&nbsp;Zhenhui Ma","doi":"10.1007/s12598-025-03428-2","DOIUrl":"10.1007/s12598-025-03428-2","url":null,"abstract":"<div><p>The magnetic loss plays a key role in electromagnetic waves (EMW) absorption. However, the magnetic loss ability would obviously draw at high frequency, and the component lacks the dielectric loss ability, resulting in poor EMW absorption. In this work, we design a core–shell-structured Fe@Sm₂Fe₁₇ dual magnetic nanoparticle. The 200-nm Sm₂Fe₁₇ nanoparticles play a key role in maintaining relatively high magnetic loss ability even at high frequency. And the introduction of 3-μm Fe cubes can optimize the dielectric parameters by the interface polarization and thus enhance the impedance matching. Meanwhile, Fe cubes with easy axis vertical to six planes can absorb the EMW with different directions, leading to the enhancement of the EMW attenuation. Especially, the Fe cubes can align the moment of Sm₂Fe₁₇ nanoparticles, which can increase exchange-coupling interaction between them to further improve the magnetic loss capacity and broaden the effective absorption bandwidth (EAB). Furthermore, the small-sized Sm₂Fe₁₇ nanoparticles provide a rough surface, which promotes multiple reflections and scattering of the incident EMW. As a result, the optimal EMW attenuation performance with a minimum reflection loss exceeding −51.4 dB and a broadened EAB up to 6.6 GHz at 1.4 mm was achieved in Fe@Sm₂Fe₁₇ composites with Sm/Fe of 1:12. Our work provides profound insights into developing well-coordinated magnetic–dielectric nanocomposites for EMW absorption engineering.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6503 - 6512"},"PeriodicalIF":11.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stable and efficient lithium storage via Ni ratio and calcination temperatures modulation in Ni–Mn layered cathodes","authors":"Xin-Xin Jia,&nbsp;Ying Li,&nbsp;Yuan-Yuan Li,&nbsp;Peng-Xiang Yan,&nbsp;Yan-Gang Zhang,&nbsp;Shengjie Yang,&nbsp;Pei-Yue Jin,&nbsp;Umedjon Khalilov,&nbsp;Jun-Fei Liang,&nbsp;Jian Zhu,&nbsp;Lin Guo","doi":"10.1007/s12598-025-03458-w","DOIUrl":"10.1007/s12598-025-03458-w","url":null,"abstract":"<div><p>Cobalt-free nickel-manganese binary materials are one of the most promising cathode candidates for lithium-ion batteries due to the low reserves, high price, political and ecological unfriendliness of cobalt. The preparation of high-performance Ni–Mn bimetallic materials through controlled synthesis conditions holds significant importance for industrial applications. In this work, through systematic modulation of calcination temperatures and nickel ratios, we have effectively addressed critical challenges in binary layered cathodes, including cationic disordering, detrimental H2–H3 phase transitions, and severe interfacial side reactions. The electrochemical performance and thermal stability tests demonstrate that the medium-nickel cathode calcined at 850 °C (NM64) exhibit superior comprehensive performance, including moderate discharge capacity (181.34 mAh g⁻¹ at 1C), enhanced thermal stability and cycling stability (90% capacity retention after 100 cycles), excellent rate performance (125 mAh g⁻¹ at high rate of 10C). Moreover, a 10 kg sample was prepared further verified its commercial application prospects. The soft-pack battery with commercial graphite anode and NM64-850 cathode achieve a discharge capacity of 171.0 mAh g⁻¹ and retains 86.5% capacity after 180 cycles. The optimized integration of nickel content and calcination temperature endows binary cathodes with balanced electrochemical performance, enabling commercial viability.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6015 - 6025"},"PeriodicalIF":11.0,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural transformation from crystalline to amorphous states to boost sodium storage properties of NaVOPO4 cathode","authors":"Ya-Nan Zhao,&nbsp;Ke-An Chen,&nbsp;Li-Xiao Han,&nbsp;Meng-Meng Ma,&nbsp;Hui Li,&nbsp;Xin-Ping Ai,&nbsp;Yong-Jin Fang,&nbsp;Yu-Liang Cao","doi":"10.1007/s12598-025-03407-7","DOIUrl":"10.1007/s12598-025-03407-7","url":null,"abstract":"<div><p>Polyanionic materials are considered one of the most promising cathode materials for sodium-ion batteries because of the stable structure framework and high working voltage. However, most polyanionic materials possess limited sodium storage sites and have to undergo complex local structure evolution during charge/discharge. Herein, we conducted a systematic investigation into the impact of structural forms of NaVOPO₄ on the electrochemical properties. Amorphous and crystalline NaVOPO₄ are synthesized through a controlled reflux reduction method, and the amorphous NaVOPO₄ (a-NVOP) demonstrates much better electrochemical performance compared to the crystalline counterpart. Specifically, the a-NVOP electrode delivers high reversible capacity (142 mAh g⁻¹ at 14.5 mA g⁻¹, close to the theoretical capacity of 145 mAh g⁻¹), high energy density (497 Wh kg⁻¹ based on cathode material) and remarkable cyclability with capacity retention of 80% after 500 cycles. In situ and ex situ experimental analyses and theoretical calculations reveal that the superior performance is primarily due to the maintaining of the amorphous state during the charge/discharge process to endow high stability and accelerated intercalation/deintercalation of large-sized Na⁺ without lattice constraints. Furthermore, the amorphous cathode materials show promising electrochemical properties in lithium-, potassium- and zinc-ion batteries, highlighting their broad adaptability and potential across various battery systems.</p><h3>Graphical abstract</h3><p>A series of NaVOPO₄ with different crystal forms were synthesized through a controlled reflux reduction method. The amorphous NaVOPO₄ electrodes demonstrated boosted electrochemical performance compared to the crystalline counterpart. Specifically, the amorphous NaVOPO₄ electrodes deliver a high working voltage (3.5 V vs. Na⁺/Na), high reversible capacity (142 mAh g⁻¹ at 14.5 mA g⁻¹), high energy density (497 Wh kg⁻¹), and good cycle stability. Ex situ and in situ characterizations and theoretical calculations reveal the redox characteristics of the amorphous structures. This work provides an inspiring example that amorphous materials can serve as advanced cathode materials to achieve both high reversible capacities and stable cycling performance.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 10","pages":"7230 - 7241"},"PeriodicalIF":11.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural design of highly permeable Bi2O3 microspheres decorated by Pt-nanoparticles: facile synthesis and acetic acid sensing performance","authors":"Fan Yang,&nbsp;Jun-Ning Zhang,&nbsp;Chao Zhang,&nbsp;Xin-Da Xu,&nbsp;Bing Li,&nbsp;Woochul Yang,&nbsp;Wan-Feng Xie","doi":"10.1007/s12598-025-03391-y","DOIUrl":"10.1007/s12598-025-03391-y","url":null,"abstract":"<div><p>Real-time detection of acetic acid vapor is of concern for ensuring environmental and personal safety. However, acetic acid gas sensors, particularly those based on Bi₂O₃, often fail to meet practical performance requirements owing to their slow response characteristics and high operating temperature. To enhance sensing performance, highly permeable Bi₂O₃ microspheres decorated by Pt-nanoparticles are rationally synthesized by a facile template method. Among the fabricated sensors, the one based on 3 wt% Pt-decorated Bi₂O₃ demonstrated excellent sensing performance. Specifically, the sensor displayed high selectivity for acetic acid, rapid response and recovery times (22.5 and 9 s, respectively), strong resistance to interference, and good long-term stability at a low operating temperature (150 °C). Notably, the sensor exhibited an exceptionally high response of 126 to 100 ppm acetic acid—the highest reported value for Bi₂O₃-based sensors tested at a relatively low operating temperature in recent years. These results demonstrate that Pt-decorated Bi₂O₃ holds strong potential for use in high-performance acetic acid sensors.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 9","pages":"6417 - 6425"},"PeriodicalIF":11.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12598-025-03391-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}