Nature Communications
·
2026
·
IF 18.1
Huang Zihao,Xu Chenchao,Que Yande,Liu Yi,Wang Yunhao,Zhu Shiyu,Shivajirao Ranjith,Tong Zheng Jue,Kumar Amit,Cao Chao,Cao Guang-Han,Gao Hong-Jun,Weber Bent
The interplay of charge and spin orders lies at the heart of correlated electron physics and plays a critical role in the emergence of unconventional quantum phases. Kagome magnets provide a particularly promising platform to investigate these phenomena, owing to their geometrically frustrated lattice structure. However, resolving spin and charge orders microscopically and establishing ways to control them remain fundamental challenges. Here, we demonstrate magnetic-field control of an altermagnetic spin density wave order intertwined with charge density wave order in kagome magnet CsCr 3 Sb 5 . Scanning tunneling microscopy down to deep cryogenic temperature of 50 mK reveals two previously unreported charge density wave orders. Density functional theory confirms that one of them, a 4 \({a}_{0}\times \sqrt{3}{a}_{0}\) charge order, is coupled to a spin density wave with an altermagnetic ground state. The charge density waves can be tuned in both amplitude and phase by an external magnetic field, reflected in domain switching and stripe sliding of the charge density wave. Our findings deepen the understanding of symmetry-breaking in kagome systems, providing a tunable platform to explore the interplay of electronic correlation with emergent quantum magnetism.
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PubMed
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 9
·118212
·
IF 6.3
Xinyu Wang,Ruipeng Wang,Jianli Jiang,Haining Meng,Haigang Hou,Jian Yang,Guiwu Liu,Guanjun Qiao
PbTe-based thermoelectric materials are promising for mid-temperature waste heat recovery, yet n-type PbTe underperforms its p-type counterpart. Herein, high-performance n-type PbTe is achieved through I/Ge co-doping and in-situ composite engineering with Sb 2 Te 3 prepared by melting combined spark plasma sintering. Sb 2 Te 3 alloying introduce in-situ formed Sb/Sb 2 Te 3 precipitates. Furthermore, iodine doping optimizes the carrier concentration to ∼3.4 × 10 19 cm –3 , boosting the room-temperature electrical conductivity to ∼1404 S cm −1 and yielding a high power factor of ∼17.4 μW cm −1 K −2 for the PbTe-Sb 2 Te 3 sample. Meanwhile, lattice thermal conductivity is synergistically suppressed to ∼0.37 W m –1 K –1 at 673 K through Ge-induced point defects/off-center anharmonicity and Sb/Sb 2 Te 3 precipitates. This synergistic strategy results in a peak ZT of ∼1.30 at 823 K and a high average ZT of ∼0.91 at 323–823 K. This work demonstrates that synergistic I/Ge co-doping and composite precipitation effectively enhance thermoelectric performance in n-type PbTe.
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高影响因子
Aquaculture Reports
·
2023
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IF 3.7
Yi Du,Long Cheng,Jianhua Zhao,Clement R. de Cruz,Hong Xu,Liansheng Wang,Qiyou Xu
This study investigated the effects of Clostridium butyricum (CB) and sodium butyrate (SB) on the growth performance, intestinal immune, and gut microbiota of mirror carp ( Cyprinus carpio ) fed with a high level of soybean meal. Three hundred sixty healthy carp fingerlings (∼3.74 g) were divided into eight dietary treatments with four replicates and ten fish per replicate. Which include basal diet (Control group, C0); C0 supplemented with three levels of CB, 3 × 10 7 cfu/kg (C1), 3 × 10 8 cfu/kg (C2), 3 × 10 9 cfu/kg (C3); three levels of SB, 500 mg/kg (S1), 1000 mg/kg (S2), 2 000 mg/kg (S3); and 3 × 10 8 cfu/kg CB+ 1 000 mg/kg SB (CS), respectively. In 8-week trial, the survival rate of all groups was 100%. Compared with C0, the Weight Gain, Feed Conversion Ratio, Protein Efficiency Ratio were not significantly different in all groups ( P > 0.05). Crude protein and ether extract contents were increased significantly ( P < 0.05) when supplemented with different levels of CB and SB, and ash content increased significantly in the CB groups ( P < 0.05). Serum globulin increased and glucose decreased significantly ( P < 0.05) in the CB and SB groups. The intestinal T-SOD and glutathione activity in the foregut, midgut, and hindgut were increased ( P < 0.05), and villus height of foregut and midgut were higher in the CB and SB ( P < 0.05). Protease activities in the foregut and midgut were significantly increased ( P < 0.05) in the C2, C3, S2, and S3. The lipase activity of the C2 and C3 in foregut, midgut, and hindgut; S2, S3, and CS in the foregut; S3 in midgut were significantly increased ( P < 0.05). The gut microbiota was modulated at the phylum and genera level by CB and SB administration. In summary, our results indicated that CB and SB could promote the whole body CP and EE content, intestine immunity, digestive enzyme activity, and intestinal morphology, and modulated gut flora in carp.
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JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2023
·Vol. 27
·期 6
·1433-1441
·
IF 2.5
Mao Qianlun,Jia Yuexin,Zhu Wenhao,Gao Lijun
Antimony (Sb) has been recognized as one of the most promising metal anode materials for sodium-ion batteries, owing to its high capacity and suitable sodiation potential. Nevertheless, the large volume variation during (de)alloying can lead to material fracture and amorphization, which seriously affects their cycling stability. In this work, we report an engineering strategy by encapsulating Sb nanoparticles in nitrogen-doped spherical carbon shells (Sb@CN). This unique structure can efficiently accommodate volume variation and release stress upon sodiation, thus maintaining structural integrity. As a result, the Sb@CN composite exhibits an excellent sodium storage performance, achieving a capacity of 282 mAh g −1 over 5000 cycles at the current density of 0.66 A g −1 , and the capacity retention rate from the second cycle to the 5000th cycle is close to 100%. Moreover, it also shows a remarkable rate capability of 217 mAh g −1 at a high current density of 3.3 A g −1 . It is believed that this composition strategy would provide guidance toward stable alloy anodes for sodium-ion batteries.
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ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Ye Liu,Zhe Li,Yanjie Cheng,Ru Wang,Yunhui Shi
Advanced secondary energy storage technologies and key components are crucial to the efficient use of energy resources. Layered antimonene can facilitate ions transport and intercalation. However, the electrochemical mechanism of antimonene is very much a gray area. Herein, we show that the electrolyte ions can make appreciable differences in the energy storage behavior of antimonene. Accordingly, a high value of 599 F g −1 can be obtained by scanning antimonene electrode in 1 M H 2 SO 4 at a rate of 5 mV s −1 , which is more than twice the capacitance of those KOH, LiOH and LiCl based electrolyte systems. Systematic investigation including kinetics simulation and extrapolation of surface charge suggests a mixture of surface-controlled and battery-like Faradaic responses of antimonene in acid electrolyte. Electrochemical quartz crystal microbalance (EQCM) combined with first-principles calculation further reveals that hydrated H + is expected to access the “inner” surface sites of antimonene and thus insert or intercalate into the antimonene nanosheets. Notably, an asymmetric supercapacitor composed of antimonene positrode and carbon nanotube negatrode exhibits a wide operating voltage of 1.8 V, a relatively high energy density of 46 Wh Kg −1 at a power density of 450 W Kg −1 and great cycling performance (capacitance retention of up to 112.7% after 5000 cycles, 1.5 A g −1 ). The paper offers fundamental insights into the influence of electrolyte ions on the electrochemical behavior of 2D Xenes and pushes back the frontiers of designing energy storage systems.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2022
·
IF 4.598
Yaosheng Liu,Yongxing Diao,Guangxing Hu,Yuyan Zhao,Yan Shi,Hongda Wang,Zhuang Li
Metal-based pH sensor has wide applications in industrial monitoring, soil environment, marine safety, and other fields. In this study, we proposed to renew the antimony-based sensor by physical polishing and electrochemical cathode reduction. Compared with before polishing, the pH response sensitivity after polishing increased from 0.034 V/pH to 0.042 V/pH, electrochemical cathode reduction renewed the pH response sensitivity improved from 0.018 V/pH to 0.032 V/pH (10 min) and 0.043 V/pH (30 min). The reasons for the deterioration of the pH response performance of the antimony-based sensor were analyzed by SEM, EDS, and XRD, and the renewable mechanisms of the sensor were proposed. The renewable effect of electrochemical cathode reduction on the degradation of sensor accuracy was evaluated for long-term monitoring. It is expected to realize remote online renewal of sensors under on-site unattended conditions, to reduce operation and maintenance costs of the sensor. These results provide solutions for the repeated regeneration of metal-based pH sensors which were degraded in performance and have significance for promoting the development and wide applications of renewable pH sensors.
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高影响因子
Nano Research
·
2023
·
IF 9.9
Huang Tao,Li Ke,Lei Jinyu,Niu Quan,Peng Hui,Zou Bingsuo
Sb-based organic–inorganic hybrid metal halides (OIHMHs) with [SbCl 5 ] 2− units have been widely reported due to high photoluminescence quantum yield (PLQY) and occasional multiple self-trapped exciton (STE) emission bands mainly out of singlet and triplet states, and their multi-band emission is important in white light-emitting diode (WLED). However, not all these OIHMH compounds can produce both emissions out of singlet STE and triplet STE at room temperature simultaneously. It is crucial to consider how the singlet STE generates and retains to emit light at room temperature for this material’s design and application. Herein, a strategy is proposed that can significantly lift Sb halide PLQY by synthesizing two Sb-based OIHMHs using organic amine cations of different-sized and -quantity, which modulate the distance of neighboring emission centers. Therein, the occurrence of singlet STE emission is found to be closely related to the distance of [SbCl 5 ] 2− units and local unit distortion in the lattice. The larger distance can produce smaller local distortions, favoring the formation of the singlet STE emission band at higher energy. This is the first work to reveal the relationship between the local structure and the origin of the singlet STE emission band, providing new insights into the modulation of the Sb-based OIHMH’s emission.
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高影响因子
Journal of Materials Chemistry A
·
2023
·Vol. 11
·期 35
·18811-18819
·
IF 11.9
Qiang Zhang,Jiadang Li,Nagendra S. Chauhan,Lifei Wang,Zhicheng Huang,Wenhao Fan,Kei Hayashi,Shaoping Chen,Jianfeng Fan,Yuzuru Miyazaki
Grain boundary (GB) scattering has been widely reckoned as a primary restraint on room-temperature (RT) carrier mobility in Mg3Sb2-based materials. In this work, two-dimensional graphene (G) with varied contents was added to single phase Mg3.24Sb1.5Bi0.49Te0.01 materials in order to tailor the highly resistive space-charge region at GBs. The results indicate that introducing G effectively lowers the carrier transport energy barrier Eb from 42 meV (pristine sample) to 18 meV (Mg3.24Sb1.5Bi0.49Te0.01/1.0 vol% G sample), and correspondingly increases the drift mobility by 112.5% from 32 cm2 V−1 s−1 to 68 cm2 V−1 s−1 at RT, leading to an enhanced power factor and thus ZT value. Besides, first-principles calculations were also performed to qualitatively bridge the underlying negative correlation between the electronic density of states (DOS) and GB potential barrier Eb. Moreover, the equivalent nano-particle phonon scattering is also realized through introducing the two-dimensional G, contributing to a moderate reduction in lattice thermal conductivity as quantitatively illustrated based on the Debye–Callaway model. Consequently, the figure of merit ZT for G-added samples is greatly improved in the entire temperature range compared with that of the G-free sample. This study opens up a new avenue for rationally engineering the grain boundary, via regulating interfacial electronic DOS, to optimize electrical transport properties and ZT values.
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高影响因子
MODERN PHYSICS LETTERS B
·
2023
·
IF 1.9
Yaqi Chen,Xin Fan,Shan Gao,Wenting Ji,Xinjian Li,Yuewen Zhang,Hongan Ma,Xiaopeng Jia
Electronegative S-filled skutterudite compounds have attracted considerable attention due to scattering of low-frequency phonons (35–50 cm − 1 ), but there are few reports on S-filled double-substituted skutterudite. In this work, a series of S-filled Te-Sn double-substituted skutterudite compounds were synthesized using high pressure and high temperature (HPHT) method. The phase composition, microstructure, and thermoelectric properties of S x Co 4 Sb 1 1 Te 0 . 7 Sn 0 . 3 ( x = 0 , 0.05, 0.10, 0.20) samples were systematically determined. The results show that the introduction of S increases the substitution limit of Te in the Sb site. Under the combined effect of the sample synthesis pressure and S filling, the nucleation density of the sample grains increases and the grain size decreases. At the same time, there are numerous special microstructures in the samples synthesized in a high-pressure environment. Thermoelectric performance studies show that a small amount of S filling optimizes the Seebeck coefficient of the sample and increases the power factor (PF). With an increase of the amount of S introduced, the thermal conductivity of the samples decreases significantly. Therefore, the maximum zT value of an S 0 . 0 5 Co 4 Sb 1 1 Te 0 . 7 Sn 0 . 3 sample synthesized at 2.5 GPa pressure is 0.17 at room temperature. The maximum zT value of the sample is 1.26 at 773 K.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2022
·
IF 9.224
Deliang Cheng,Ankai Wei,Leyi Ye,Guodong Xu,Liang Tan,Bin Lu,Yiwang Chen
Alloy-type materials have aroused wide concern as potential anodes for Na-ion batteries (NIBs) because of their high theoretical capacities and suitable Na-storage potentials. Fabricating composites with carbon matrixes is the most common strategy to solve their key issues of large volume expansion and sluggish reaction kinetics. However, it is still challenging to achieve strong interfacial interaction between alloy-type materials and carbon matrixes, thus largely improving the buffering effect of carbon matrixes on volume change. Herein, we have developed a SnSb-graphene (SnSb-G) hybrid anode with interfacial Sn/Sb–C bonding via a plasma-assisted mechanochemical method. The Sn/Sb–C bonding can enhance the interfacial interaction between SnSb and graphene, which inhibits the detachment of SnSb nanoparticles from graphene upon cycling and promotes the buffering effect of graphene. Meanwhile, the strong interfacial bonding of conductive graphene network to SnSb nanoparticles can greatly facilitate the Na+ storage/transfer along the SnSb/graphene interface, rendering electrode superior performance at high rates. Therefore, as an anode for NIBs, the SnSb-G composite exhibits superb rate capability (301.5 mAh g–1 at 10.0 A g–1) and cyclic stability (85.8%/89.1% capacity retentions at 1.0/2.0 A g–1 after 1000 cycles). Moreover, the assembled full cell delivers a high energy density of 145 Wh kg–1 and superior cycling performance of 333.6 mAh g–1 after 200 cycles, demonstrating its potential for practical application. This work provides new insight to achieve high-performance alloy-type anodes for practical NIBs.
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高影响因子
ChemNanoMat
·
2022
·Vol. 9
·期 1
·e202200400
·
IF 3.82
Bo Zhu,Xu Lu,Jiadang Li,Wenhao Xie,Lifei Wang,Qiang Zhang,Jianfeng Fan,Yun Zheng
Graphical The substitution of iso-valent Bi for Sb is adopted to adjust the thermoelectric transport properties of the undoped Mg 3 Sb 2 compound. The improved power factor and figure of merit are obtained accordingly. Bismuth is the most common alloying element for high-performance Mg 3 Sb 2 -based thermoelectric compounds. However, the electrical and thermal transport data is lacking for undoped Mg 3 (Sb, Bi) 2 solid solutions. In this study, theoretical calculation results show that Bi alloying can reduce the band gap of Mg 3 Sb 2 , favoring the regulation of carrier concentration. Both Mg 3 Sb 2 and Mg 3 SbBi compounds present a single band structure on the valence band maximum at Γ of the Brillouin zone. Incorporating the Bi element can slightly increase the density of states (DOS) on the valence band maximum, which is beneficial for the Seebeck coefficient. Mg 3 Sb 2-x Bi x (0≤x≤0.8) compounds were experimentally prepared via ball milling (BM) combined with the spark plasma sintering (SPS) technique. The carrier concentration, electrical conductivity, and power factor of the samples tend to increase with the increasing Bi content. Bismuth alloying significantly reduces the total thermal conductivity in the low-temperature range, with the lowest value of 0.65 Wm −1 K −1 obtained at ∼400 K for the x=0.2 sample. The peak ZT value of 0.077 at 800 K and the average ZT of 0.051 in the temperature range of 450–800 K are obtained for the x=0.2 sample, which is 93% and 219% higher than those of the unalloyed sample, respectively. This work reveals the Bi-alloying induced transport mechanism and provides fundamental thermoelectric data regarding the undoped Mg 3 Sb 2-x Bi x (0≤x≤0.8) solid solutions.
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JOURNAL OF POWER SOURCES
·
2022
·
IF 9.794
Wenjin Ding,Qing Gong,Shengzhi Liang,Ralf Hoffmann,Hao Zhou,Haomiao Li,Kangli Wang,Tianru Zhang,Alfons Weisenburger,Georg Müller,Alexander Bonk
Multi-cationic molten chloride salt mixtures such as LiCl–KCl–NaCl are promising molten salt electrolytes for sodium liquid metal batteries (Na-LMBs). In this work, the melting temperature of LiCl–KCl–NaCl was determined with Differential Scanning Calorimetry (DSC), assisted by FactSage™ simulation and confirmed by a melting point apparatus OptiMelt™. It is founded that the eutectic LiCl–KCl–NaCl can be considered as a pseudo-binary system with LiCl–KCl eutectic (59.2–40.8 mol.%) as the solvent and NaCl as the solute. When NaCl is not more than 9 mol.%, the eutectic LiCl–KCl–NaCl salt mixture has a melting temperature of ∼350 °C as that of LiCl–KCl eutectic. In addition, the exchange reactions between anode Na metal with LiCl–KCl–NaCl molten salt electrolyte were studied at the temperature of 400–500 °C quantitatively. The equilibrium constants of the exchange reactions were determined by chemical analysis on the salt and metal phases with Ion Chromatography (IC). A one ampere-hour (Ah) Na-LMB test cell shows promising energy storage performance. Moreover, the phenomena in the cell test can be explained convincingly, combining the results of exchange reactions and the pseudo-binary-system theory. The findings on the multi-cationic molten salt electrolytes for Na-LMBs in this work could support further development of other liquid metal batteries.
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