Nature Materials最新文献_第5页

Ultrafine metal nanoparticles isolated on oxide nano-islands as exceptional sintering-resistant catalysts

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-10 DOI: 10.1038/s41563-025-02134-9

Tao Zhou, Xu Li, Jiankang Zhao, Lei Luo, Yanru Wang, Zizhen Xiao, Sunpei Hu, Ruyang Wang, Zekun Zhao, Chengyuan Liu, Wenlong Wu, Hongliang Li, Zhirong Zhang, Long Zhao, Han Yan, Jie Zeng

{"title":"Ultrafine metal nanoparticles isolated on oxide nano-islands as exceptional sintering-resistant catalysts","authors":"Tao Zhou, Xu Li, Jiankang Zhao, Lei Luo, Yanru Wang, Zizhen Xiao, Sunpei Hu, Ruyang Wang, Zekun Zhao, Chengyuan Liu, Wenlong Wu, Hongliang Li, Zhirong Zhang, Long Zhao, Han Yan, Jie Zeng","doi":"10.1038/s41563-025-02134-9","DOIUrl":"https://doi.org/10.1038/s41563-025-02134-9","url":null,"abstract":"Ultrafine nanoparticles (NPs) have attracted extensive research interest, especially in heterogeneous catalysis. However, the inherent sintering propensity of NPs has been a major obstacle to their catalytic stability. Here we report an isolation strategy to preserve highly dispersed ultrafine NPs under extremely harsh conditions. Oxide nano-islands were grafted between the catalyst support and metal NPs, serving as a general approach by following a charge attraction principle. Specifically, LaOx nano-islands were ideally suited for stabilizing Ru NPs among the synthetic library, exhibiting strong adhesion to minimize the chemical potential and disconnect the sintering path. Thus, ultrafine Ru NPs in Ru/LaOx–SiO2 were isolated, maintaining a mean size of 1.4 nm in CO- and H2-rich atmosphere during efficient catalysis for methane dry reforming at 800 °C for 400 h. This isolation strategy has proved effective for many other metals on various supports, paving a practical way for the design of sintering-resistant catalysts.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"19 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582859","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}

引用次数: 0

Clarifying the origin of molecular O2 in cathode oxides

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-10 DOI: 10.1038/s41563-025-02144-7

Xu Gao, Biao Li, Kurt Kummer, Andrey Geondzhian, Dmitry A. Aksyonov, Rémi Dedryvère, Dominique Foix, Gwenaëlle Rousse, Mouna Ben Yahia, Marie-Liesse Doublet, Artem M. Abakumov, Jean-Marie Tarascon

{"title":"Clarifying the origin of molecular O2 in cathode oxides","authors":"Xu Gao, Biao Li, Kurt Kummer, Andrey Geondzhian, Dmitry A. Aksyonov, Rémi Dedryvère, Dominique Foix, Gwenaëlle Rousse, Mouna Ben Yahia, Marie-Liesse Doublet, Artem M. Abakumov, Jean-Marie Tarascon","doi":"10.1038/s41563-025-02144-7","DOIUrl":"https://doi.org/10.1038/s41563-025-02144-7","url":null,"abstract":"Anionic redox has reshaped the conventional way of exploring advanced cathode materials for Li-ion batteries. However, how anions participate in the redox process has been the subject of intensive debate, evolving from electron holes to O–O dimerization and currently to a focus on trapped molecular O2 based on high-resolution resonant X-ray inelastic scattering research. Here we show that the resonant X-ray inelastic scattering signal of molecular O2 is not exclusive to Li-rich oxide cathodes, but appears consistently in O-redox-inactive oxide materials even with a short beam exposure time as low as 1 min, indicating that molecular O2 species are not directly related to voltage hysteresis and voltage decay. We further demonstrated that molecular O2 is not a direct product of electrochemistry but more likely a consequence of the core excitation process in resonant X-ray inelastic scattering, for which the possible scenarios of the dissociation of ‘M-(O–O)’-like species on beam excitation must be considered. Collectively, our results reconcile the conflicting reported results on the (non-)observation of molecular O2 signal collected from different beamlines and suggest that molecular O2 is not the energetic engine of new battery oxide cathodes.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"31 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583059","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}

引用次数: 0

A non-layered two-dimensional semiconductor for p-type transistors

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-07 DOI: 10.1038/s41563-025-02165-2

引用次数: 0

Stiff and self-healing hydrogels by polymer entanglements in co-planar nanoconfinement

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-03-07 DOI: 10.1038/s41563-025-02146-5

Chen Liang, Volodymyr Dudko, Olena Khoruzhenko, Xiaodan Hong, Zhong-Peng Lv, Isabell Tunn, Muhammad Umer, Jaakko V. I. Timonen, Markus B. Linder, Josef Breu, Olli Ikkala, Hang Zhang

{"title":"Stiff and self-healing hydrogels by polymer entanglements in co-planar nanoconfinement","authors":"Chen Liang, Volodymyr Dudko, Olena Khoruzhenko, Xiaodan Hong, Zhong-Peng Lv, Isabell Tunn, Muhammad Umer, Jaakko V. I. Timonen, Markus B. Linder, Josef Breu, Olli Ikkala, Hang Zhang","doi":"10.1038/s41563-025-02146-5","DOIUrl":"10.1038/s41563-025-02146-5","url":null,"abstract":"Many biological tissues are mechanically strong and stiff but can still heal from damage. By contrast, synthetic hydrogels have not shown comparable combinations of properties, as current stiffening approaches inevitably suppress the required chain/bond dynamics for self-healing. Here we show a stiff and self-healing hydrogel with a modulus of 50 MPa and tensile strength up to 4.2 MPa by polymer entanglements in co-planar nanoconfinement. This is realized by polymerizing a highly concentrated monomer solution within a scaffold of fully delaminated synthetic hectorite nanosheets, shear oriented into a macroscopic monodomain. The resultant physical gels show self-healing efficiency up to 100% despite the high modulus, and high adhesion shear strength on a broad range of substrates. This nanoconfinement approach allows the incorporation of novel functionalities by embedding colloidal materials such as MXenes and can be generalized to other polymers and solvents to fabricate stiff and self-healing gels for soft robotics, additive manufacturing and biomedical applications. Mechanical stiffness and self-healing properties are difficult to combine in synthetic hydrogels. Using polymer entanglements in co-planar nanoconfinement, stiff and self-healing hydrogels are fabricated, with applications in biology and engineering.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"24 4","pages":"599-606"},"PeriodicalIF":37.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41563-025-02146-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570153","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}

引用次数: 0

A facile approach for generating ordered oxygen vacancies in metal oxides

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-07 DOI: 10.1038/s41563-025-02171-4

Kexin Chen, Xuanyi Yuan, Zhaobo Tian, Mingchu Zou, Yifei Yuan, Zhanglin Chen, Qinghua Zhang, YuYang Zhang, Xin Jin, Tianpin Wu, Reza Shahbazian-Yassar, Guanghua Liu

引用次数: 0

Vapour–liquid–solid–solid growth of two-dimensional non-layered β-Bi2O3 crystals with high hole mobility

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-07 DOI: 10.1038/s41563-025-02141-w

Yunhai Xiong, Duo Xu, Yousheng Zou, Lili Xu, Yujie Yan, Jianghua Wu, Chen Qian, Xiufeng Song, Kairui Qu, Tong Zhao, Jie Gao, Jialin Yang, Kai Zhang, Shengli Zhang, Peng Wang, Xiang Chen, Haibo Zeng

{"title":"Vapour–liquid–solid–solid growth of two-dimensional non-layered β-Bi2O3 crystals with high hole mobility","authors":"Yunhai Xiong, Duo Xu, Yousheng Zou, Lili Xu, Yujie Yan, Jianghua Wu, Chen Qian, Xiufeng Song, Kairui Qu, Tong Zhao, Jie Gao, Jialin Yang, Kai Zhang, Shengli Zhang, Peng Wang, Xiang Chen, Haibo Zeng","doi":"10.1038/s41563-025-02141-w","DOIUrl":"https://doi.org/10.1038/s41563-025-02141-w","url":null,"abstract":"Currently, p-type two-dimensional (2D) materials lag behind n-type ones in both quantity and performance, hindering their use in advanced p-channel transistors and complementary logic circuits. Non-layered materials, which make up 95% of crystal structures, hold the potential for superior p-type 2D materials but remain challenging to synthesize. Here we show a vapour–liquid–solid–solid growth of atomically thin (<1 nm), high-quality, non-layered 2D β-Bi2O3 crystals on a SiO2/Si substrate. These crystals form via a transformation from layered BiOCl intermediates. We further realize 2D β-Bi2O3 transistors with room-temperature hole mobility and an on/off current ratio of 136.6 cm2 V−1 s−1 and 1.2 × 108, respectively. The p-type nature is due to the strong suborbital hybridization of Bi 6s26p3 with O 2p4 at the crystal’s M-point valence band maximum. Our work can be used as a reference that adds more 2D non-layered materials to the 2D toolkit and shows 2D β-Bi2O3 to be promising candidate for future electronics.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"33 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570152","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}

引用次数: 0

Rapid growth of inch-sized lanthanide oxychloride single crystals

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-05 DOI: 10.1038/s41563-025-02142-9

Zhuofeng Shi, Wei Guo, Saiyu Bu, Lingmiao Ma, Zhaoning Hu, Yaqi Zhu, Haotian Wu, Xiaohui Chen, Xiaodong Zhang, Kostya S. Novoselov, Boyang Mao, Ning Kang, Li Lin

{"title":"Rapid growth of inch-sized lanthanide oxychloride single crystals","authors":"Zhuofeng Shi, Wei Guo, Saiyu Bu, Lingmiao Ma, Zhaoning Hu, Yaqi Zhu, Haotian Wu, Xiaohui Chen, Xiaodong Zhang, Kostya S. Novoselov, Boyang Mao, Ning Kang, Li Lin","doi":"10.1038/s41563-025-02142-9","DOIUrl":"https://doi.org/10.1038/s41563-025-02142-9","url":null,"abstract":"The layered lanthanide oxychloride (LnOCl) family, featuring a low equivalent oxide thickness, high breakdown field and magnetic ordering properties, holds great promise for next-generation van der Waals devices. However, the exploitation of LnOCl materials has been hindered by a lack of reliable methods for growing their single-crystalline phases. Here we achieved the growth of inch-sized bulk LnOCl single crystals and single-crystalline thin films with thickness down to the monolayer in a few hours. The monolayer LnOCl exhibits ultralow equivalent oxide thicknesses, for instance, LaOCl and SmOCl have values of 0.25 and 0.34, respectively. Furthermore, using LnOCl as a dielectric in graphene devices, we demonstrate wafer-scale enhancement of carrier mobility and a well-developed quantum Hall effect. The induced strong magnetic proximity effect by SmOCl and DyOCl enables efficient interfacial charge transfer with magnetic exchange coupling This work provides a general strategy for synthesizing large-sized single-crystalline layered materials, enriching the library of ultralow-equivalent-oxide-thickness dielectric materials, and two-dimensional magnetic materials with induced strong magnetic proximity effect.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"18 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546745","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}

引用次数: 0

Surfactant-induced hole concentration enhancement for highly efficient perovskite light-emitting diodes

IF 41.2 1区材料科学

Nature Materials Pub Date : 2025-03-05 DOI: 10.1038/s41563-025-02123-y

Jiajun Qin, Jia Zhang, Xianjie Liu, Yu Wang, Heyong Wang, Utkarsh Singh, Yanyan Wang, Haoliang Wang, Tianxiang Hu, Yiqiang Zhan, Yipeng Tang, Bin Hu, Constantin Bach, Carsten Deibel, Wei-Xin Ni, Sergei I. Simak, Igor A. Abrikosov, Mats Fahlman, Feng Gao

{"title":"Surfactant-induced hole concentration enhancement for highly efficient perovskite light-emitting diodes","authors":"Jiajun Qin, Jia Zhang, Xianjie Liu, Yu Wang, Heyong Wang, Utkarsh Singh, Yanyan Wang, Haoliang Wang, Tianxiang Hu, Yiqiang Zhan, Yipeng Tang, Bin Hu, Constantin Bach, Carsten Deibel, Wei-Xin Ni, Sergei I. Simak, Igor A. Abrikosov, Mats Fahlman, Feng Gao","doi":"10.1038/s41563-025-02123-y","DOIUrl":"https://doi.org/10.1038/s41563-025-02123-y","url":null,"abstract":"It is widely acknowledged that constructing small injection barriers for balanced electron and hole injections is essential for light-emitting diodes (LEDs). However, in highly efficient LEDs based on metal halide perovskites, a seemingly large hole injection barrier is usually observed. Here we rationalize this high efficiency through a surfactant-induced effect where the hole concentration at the perovskite surface is enhanced to enable sufficient bimolecular recombination pathways with injected electrons. This effect originates from the additive engineering and is verified by a series of optical and electrical measurements. In addition, surfactant additives that induce an increased hole concentration also significantly improve the luminescence yield, an important parameter for the efficient operation of perovskite LEDs. Our results not only provide rational design rules to fabricate high-efficiency perovskite LEDs but also present new insights to benefit the design of other perovskite optoelectronic devices.","PeriodicalId":19058,"journal":{"name":"Nature Materials","volume":"53 1","pages":""},"PeriodicalIF":41.2,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546744","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}

引用次数: 0

Reflections on progress in organic photovoltaics

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-03-04 DOI: 10.1038/s41563-025-02161-6

Wei Fan

引用次数: 0

The role of non-fullerene acceptors continues

IF 37.2 1区材料科学

Nature Materials Pub Date : 2025-03-04 DOI: 10.1038/s41563-025-02177-y

引用次数: 0