JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
·
2025
·
IF 2
Yang Xia,Zhou Mojin,Sui Yudong,Li Pengfei,Jiang Yehua
ZTA (ZrO 2 toughened Al 2 O 3 ) ceramics are characterized by high wear resistance and high toughness, and are usually incorporated into metal matrix to enhance the wear resistance of the materials. In order to increase the wear resistance of iron, in this study, micrometer-scale ZTA reinforced iron matrix composites were prepared by hot-pressing sintering, and the effect of ZTA content on the wear resistance of the composites was investigated. The microstructure, microhardness and abrasive wear properties of the composites were investigated by scanning electron microscopy, microhardness tester, x-ray diffractometer and three-body abrasive wear tester as test methods, and the wear failure mechanism was also studied. The results showed that ZTA was uniformly distributed in the composites without obvious defects. The hardness and wear resistance of the composites were best when 12 wt.% ZTA was added. The maximum hardness of the composite was 296.62 HV, which was enhanced by 104% with respect to the matrix. And its relative wear resistance is 2.43 times higher than that of the iron matrix. The wear mechanism of the composites is mainly dominated by fatigue wear of the matrix and exfoliation of spalling pits and some ZTA particles, fatigue wear is the main wear mechanism of the composites.
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高影响因子
NATURE
·
2023
·Vol. 618
·期 7963
·63-68
·
IF 64.8
Song Tingting,Chen Zibin,Cui Xiangyuan,Lu Shenglu,Chen Hansheng,Wang Hao,Dong Tony,Qin Bailiang,Chan Kang Cheung,Brandt Milan,Liao Xiaozhou,Ringer Simon P.,Qian Ma
Titanium alloys are advanced lightweight materials, indispensable for many critical applications 1 , 2 . The mainstay of the titanium industry is the α–β titanium alloys, which are formulated through alloying additions that stabilize the α and β phases 3 , 4 , 5 . Our work focuses on harnessing two of the most powerful stabilizing elements and strengtheners for α–β titanium alloys, oxygen and iron 1 , 2 , 3 , 4 , 5 , which are readily abundant. However, the embrittling effect of oxygen 6 , 7 , described colloquially as ‘the kryptonite to titanium’ 8 , and the microsegregation of iron 9 have hindered their combination for the development of strong and ductile α–β titanium–oxygen–iron alloys. Here we integrate alloy design with additive manufacturing (AM) process design to demonstrate a series of titanium–oxygen–iron compositions that exhibit outstanding tensile properties. We explain the atomic-scale origins of these properties using various characterization techniques. The abundance of oxygen and iron and the process simplicity for net-shape or near-net-shape manufacturing by AM make these α–β titanium–oxygen–iron alloys attractive for a diverse range of applications. Furthermore, they offer promise for industrial-scale use of off-grade sponge titanium or sponge titanium–oxygen–iron 10 , 11 , an industrial waste product at present. The economic and environmental potential to reduce the carbon footprint of the energy-intensive sponge titanium production 12 is substantial.
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高影响因子
Nature Energy
·
2022
·Vol. 7
·期 6
·511-519
·
IF 67.439
Li Yuqi,Zhou Quan,Weng Suting,Ding Feixiang,Qi Xingguo,Lu Jiaze,Li Yu,Zhang Xiao,Rong Xiaohui,Lu Yaxiang,Wang Xuefeng,Xiao Ruijuan,Li Hong,Huang Xuejie,Chen Liquan,Hu Yong-Sheng
Sodium-based batteries have attracted wide interests in the academic and industrial fields. However, their energy density is still lower than that of Li-based batteries. Here we report an initial anode-free Na battery with an energy density of over 200 Wh kg −1 , which is even higher than that of the commercial LiFePO 4 ||graphite battery. Through introducing graphitic carbon coating on the Al current collector and boron-containing electrolytes in the battery, we show that uniform nucleation and robust interphases enable reversible and crack-free Na deposition. Benefitting from the synergetic effects derived from the built cooperative interfaces, the cycling lifetime of the Na battery without applying additional pressure reaches 260 cycles, which is the longest life for large-size cells with zero excess Na. The insights gained from the Na plating/stripping behaviour and interfacial chemistry in this work pave the way for further development of Na batteries with even higher performance.
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高影响因子
NATURE
·
2025
·Vol. 641
·期 8062
·352-357
·
IF 48.5
Song Yong-Hui,Li Bo,Wang Zi-Jian,Tai Xiao-Lin,Ding Guan-Jie,Li Zi-Du,Xu Huaiyu,Hao Jing-Ming,Song Kuang-Hui,Feng Li-Zhe,Hu Ya-Lan,Yin Yi-Chen,Zhu Bai-Sheng,Zhang Guozhen,Ju Huanxin,Zheng Guanhaojie,Hu Wei,Lin Yue,Fan Fengjia,Yao Hong-Bin
Metal-halide perovskites are promising light-emitter candidates for next-generation light-emitting diodes (LEDs) 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 . Achieving high brightness and efficiency simultaneously in pure-red perovskite LEDs (PeLEDs) is an ongoing goal 9 , 10 . Three-dimensional (3D) CsPbI 3- x Br x emitters have excellent carrier transport capability and high colour purity, which could allow efficient and ultrabright pure-red PeLEDs. However, such devices are prone to efficiency roll-off, resulting in low efficiency and low brightness under high current density. Here, by using electrically excited transient absorption spectroscopy, we discovered the efficiency roll-off was induced by hole leakage. Therefore, we developed a CsPbI 3- x Br x intragrain heterostructure containing narrow bandgap emitters and wide bandgap barriers to confine the injected carriers. The wide bandgap barrier was incorporated by introducing strongly bonding molecules into the [PbX 6 ] 4− framework to expand the 3D CsPbI 3- x Br x lattice. This strategy resulted in bright and efficient pure-red PeLEDs, with a high brightness of 24,600 cd m −2 , maximum external quantum efficiency of 24.2% and low efficiency roll-off, maintaining a 10.5% external quantum efficiency at a high luminance of 22,670 cd m −2 .
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Nature Energy
·
2024
·
IF 49.7
Cui Longfei,Zhang Shu,Ju Jiangwei,Liu Tao,Zheng Yue,Xu Jiahao,Wang Yantao,Li Jiedong,Zhao Jingwen,Ma Jun,Wang Jinzhi,Xu Gaojie,Chan Ting-Shan,Huang Yu-Cheng,Haw Shu-Chih,Chen Jin-Ming,Hu Zhiwei,Cui Guanglei
All-solid-state lithium batteries typically employ heterogeneous composite cathodes where conductive additives are introduced to improve mixed conduction. These electrochemically inactive additives are not fully compatible with layered oxide cathodes that undergo large volume change, significantly reducing battery energy density and cycle life. Here we propose a cathode homogenization strategy by cold pressing a zero-strain cathode material with efficient mixed conduction throughout the (dis)charge process. Li 1.75 Ti 2 (Ge 0.25 P 0.75 S 3.8 Se 0.2 ) 3 possesses considerable Li + /electronic conductivity of 0.22/242 mS cm − 1 when fully charged, increasing monotonically to 0.66/412 mS cm − 1 when fully discharged. It delivers a specific capacity of 250 mAh g −1 and undergoes a 1.2% volume change. Homogeneous cathodes composed of 100% Li 1.75 Ti 2 (Ge 0.25 P 0.75 S 3.8 Se 0.2 ) 3 enable room-temperature all-solid-state lithium batteries to achieve a cycle life of over 20,000 cycles at 2.5 C with a specific capacity retention of 70% and a high energy density of 390 Wh kg − 1 at the cell level at 0.1 C. This cathode homogenization strategy contrasts to the conventional cathode heterogeneous design, potentially improving the viability of all-solid-state lithium batteries for commercial applications.
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高影响因子
NATURE
·
2025
·
IF 48.5
Li Shuojun,Men Yinghui,Wang Zihan,Wu Yingcheng,Sun Hao,Yin Mingyang,Fan Xinrui,Deng Guiyun,Yang Zhicheng,Yang Tiange,Xiao Yudian,Zhou Hu,Wang Guangchuan,Fan Jia,Xu Chenqi,Gao Qiang,Han Shuo
Antigen-induced clustering of cell surface receptors, including T cell receptors and Fc receptors, represents a widespread mechanism in cell signalling activation 1 , 2 . However, most naturally occurring antigens, such as tumour-associated antigens, stimulate limited receptor clustering and on-target responses owing to insufficient density 3 , 4 , 5 . Here we repurpose proximity labelling 6 , a method used to biotinylate and identify spatially proximal proteins, to amplify designed probes as synthetic antigen clusters on the cell surface. We develop an in vivo proximity-labelling technology controlled by either red light or ultrasound to covalently tag fluorescein probes at high density near a target antigen. Using T cell receptors as an example, we demonstrate that the amplified fluorescein effectively clusters and directs a fluorescein-binding bispecific T cell engager to induce enhanced T cell activation and cytotoxicity. Noninvasive, tissue-selective labelling in multiple syngeneic mouse tumour models produces potent immune responses that rapidly eradicate treated tumours. Efficient cell lysis further promotes epitope spreading to induce systemic immunity against untreated distal lesions and immune memory against rechallenge. Thus, proximity-labelling chemistry holds promise as a generalized strategy to manipulate antigen-dependent receptor function and cell states.
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高影响因子
NATURE MATERIALS
·
2022
·Vol. 21
·期 9
·1074-1080
·
IF 47.656
Yang Bingbing,Zhang Yang,Pan Hao,Si Wenlong,Zhang Qinghua,Shen Zhonghui,Yu Yong,Lan Shun,Meng Fanqi,Liu Yiqian,Huang Houbing,He Jiaqing,Gu Lin,Zhang Shujun,Chen Long-Qing,Zhu Jing,Nan Ce-Wen,Lin Yuan-Hua
Electrostatic dielectric capacitors are essential components in advanced electronic and electrical power systems due to their ultrafast charging/discharging speed and high power density. A major challenge, however, is how to improve their energy densities to effectuate the next-generation applications that demand miniaturization and integration. Here, we report a high-entropy stabilized Bi 2 Ti 2 O 7 -based dielectric film that exhibits an energy density as high as 182 J cm −3 with an efficiency of 78% at an electric field of 6.35 MV cm −1 . Our results reveal that regulating the atomic configurational entropy introduces favourable and stable microstructural features, including lattice distorted nano-crystalline grains and a disordered amorphous-like phase, which enhances the breakdown strength and reduces the polarization switching hysteresis, thus synergistically contributing to the energy storage performance. This high-entropy approach is expected to be widely applicable for the development of high-performance dielectrics.
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高影响因子
Molecular Cancer
·
2022
·Vol. 21
·期 1
·1-23
·
IF 41.444
Yao Bing,Zhu Sha,Wei Xiyi,Chen Ming-Kun,Feng Yangkun,Li Zhimin,Xu Xinyu,Zhang Yuwei,Wang Yang,Zhou Jingwan,Tang Ningyuan,Ji Chengjian,Jiang Peng,Zhao Shan-Chao,Qin Chao,Feng Ninghan
Background Prostate cancer (PCa) is the most frequently diagnosed malignancy in men, and its mechanism remains poorly understood. Therefore, it is urgent to discover potential novel diagnostic biomarkers and therapeutic targets that can potentially facilitate the development of efficient anticancer strategies.Methods A series of functional in vitro and in vivo experiments were conducted to evaluate the biological behaviors of PCa cells. RNA pulldown, Western blot, luciferase reporter, immunohistochemistry and chromatin immunoprecipitation assays were applied to dissect the detailed underlying mechanisms. High-throughput sequencing was performed to screen for differentially expressed circRNAs in PCa and adjacent normal tissues.Results Upregulation of protein arginine methyltransferase 5 (PRMT5) is associated with poor progression-free survival and the activation of multiple signaling pathways in PCa. PRMT5 inhibits the transcription of CAMK2N1 by depositing the repressive histone marks H4R3me2s and H3R8me2s on the proximal promoter region of CAMK2N1, and results in malignant progression of PCa both in vitro and in vivo. Moreover, the expression of circSPON2, a candidate circRNA in PCa tissues identified by RNA-seq, was found to be associated with poor clinical outcomes in PCa patients. Further results showed that circSPON2 induced PCa cell proliferation and migration, and that the circSPON2-induced effects were counteracted by miR-331-3p. Particularly, circSPON2 acted as a competitive endogenous RNA (ceRNA) of miR-331-3p to attenuate the repressive effects of miR-331-3p on its downstream target PRMT5.Conclusion sOur findings showed that the epigenetic regulator PRMT5 aggravates PCa progression by inhibiting the transcription of CAMK2N1 and is modulated by the circSPON2/miR-331-3p axis, which may serve as a potential therapeutic target for patients with aggressive PCa.
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Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-21
·
IF 36.3
Shi Yunyu,Liu Yingkang,Chang Ruirui,Zhang Guilin,Rang Yuqing,Xu Zheng-Long,Meng Qi,Cao Penghui,Zhou Xiangyang,Tang Jingjing,Yang Juan
Aspartame additive in electrolyte enables the in situ formation of ZnO-based solid electrolyte interphase, enhancing Zn anode corrosion resistance and stability with excellent self-healing capabilities.
Zn║Zn symmetric cells with APM-modified electrolyte operate stably for 6,400 h at − 5 °C, 10,330 h at 25 °C, and 2,250 h at 40 °C, with a high DOD of 85.2%.
Achieves 99.59% Coulombic efficiency, suppresses dendrite growth, and maintains 150 mAh g −1 capacity after 1,750 cycles in NH 4+ -V 2 O 5 full cells.
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高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-18
·
IF 36.3
Qi Cheng-Zhang,Min Peng,Zhou Xinfeng,Jin Meng,Sun Xia,Wu Jianjun,Liu Yanjun,Zhang Hao-Bin,Yu Zhong-Zhen
The multifunctional asymmetric bilayer MXene-graphene oxide (MG)-MXene aerogel with ultrahigh absorption electromagnetic interference (EMI) shielding is constructed by 3D printing and subsequent freeze-drying.
The asymmetric bilayer aerogel achieves ultrahigh electromagnetic wave absorption coefficient of 0.95, and maintains a high EMI shielding effectiveness of over 100 dB.
The multifunctional asymmetric aerogel with ultrahigh electromagnetic wave absorption, infrared camouflage, solar-thermal heating, and clean-up of organic solvents and spilled crude oil is developed for multi-scenario applications.
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高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-17
·
IF 36.3
Mai Zhaoxu,Lin Yuexing,Sun Jingying,Wang Chenhui,Yang Gongzheng,Wang Chengxin
Cationic benzyltriethylammonium chloride enables high (002)-textured Zn via selective adsorption, outperforming prior additives.
In situ homogenization converts commercial Zn foil into highly (002)-textured Zn anodes without pretreatments.
Cl − -induced pitting corrosion mechanism uncovered, leading to a breakthrough in performance limits of Zn anodes.
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Nature Nanotechnology
·
2025
·
IF 34.9
Zheng Xueying,Zhu Haotian,Wang Zhongqiang,Yang Hua,Li Ruhong,Luo Wei,Kan Wang Hay,Dai Yiming,Zhang Haikuo,Wang Jinze,Cui Huilin,Fan Xiulin,Zhi Chunyi,Huang Yunhui
Aqueous zinc metal batteries are ideal candidates for grid storage applications. However, their practical application is hindered by a narrow operating temperature range and a limited electrolyte electrochemical stability window, both of which can be attributed to the water activity. Here, to minimize water activity in the electrolyte solution, we introduce a nanoengineered approach in which the water molecules are confined within a hydrophilic–hydrophobic water solvation sheath. The hydrogen-bond interaction with the hydrophilic groups in the inner solvation layer effectively suppresses water decomposition, and the hydrophobic solvents in the outer solvation layer establish a repulsive effect against water molecules. As a proof of concept, a hydrophobic and non-polar hydrofluoroether cosolvent is introduced into a Zn-ion aqueous electrolyte solution and tested together with various fluorinated hydrotrope molecules to favour the compatibility of the cosolvent with water. By such a water confinement strategy, an average Zn plating/stripping reversibility of 99.92% is achieved for over 4,000 cycles at 2.0 mA cm −2 and 2.0 mAh cm −2 in a Zn||Cu coin cell configuration. When tested in a Zn||VOPO 4 ·2H 2 O lab-scale cell configuration, the selected aqueous-hydrotrope hybrid electrolyte solution enables long-lasting and highly reversible battery performance across temperatures from −80 °C to +60 °C.
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