JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Wei Lin,Wenxue Min,Qimeng Zhang,Shunzhang You,Song Han,Chenghao Yang
O3-type layered oxides have become a research hotspot in the development of sodium-ion batteries owing to their simple synthesis method and competitive theoretical capacity. However, their practical applications still face enormous challenges, especially concerning insufficient cyclic stability and poor kinetic performance. Herein, the Sb/Al co-doping NaNi 0.48 Mn 0.49 Sb 0.01 Al 0.02 O 2 (NMSA) material was produced via sol-gel process. Sodium-ion kinetics were investigated through Cyclic Voltammetry (CV) and Galvanostatic Intermittent Titration Technique (GITT), while the charge compensation mechanism was examined via ex-situ X-ray Photoelectron Spectroscopy (XPS). The successful doping of Al improves the stability of the transition metal oxide layer (TMO 2 ), thereby extending the cycle life of material. In-situ X-ray Diffraction (XRD) analysis reveals successful inhibition of the irreversible O3-P3 phase transition. In addition, Sb-doping increases the number of ions involved in charge compensation, thereby elevating the discharge specific capacity. Therefore, the NMSA material can provide a discharge specific capacity of 128.5 mAh g −1 at 0.1C and a capacity retention rate of 85 % after 100 cycles at 1C. Finally, the interface stability of the cycled material was studied to investigate the stability of the cathode/electrolytes interface (CEI) layer. This study provides new innovative views on proposing advanced cathode for high-energy sodium-ion batteries.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Energy
·
2024
·
IF 49.7
Ding Feixiang,Ji Pengxiang,Han Zhen,Hou Xueyan,Yang Yang,Hu Zilin,Niu Yaoshen,Liu Yuan,Zhang Jiao,Rong Xiaohui,Lu Yaxiang,Mao Huican,Su Dong,Chen Liquan,Hu Yong-Sheng
High-entropy oxides have expanded the potential for high-performance Na-ion battery cathodes due to their vast compositional space and entropy-driven stabilization. However, a rational design approach for optimizing their composition is still lacking. Here, we develop an O3-type oxide cathode composed of all-3 d transition metals, NaNi 0.3 Cu 0.1 Fe 0.2 Mn 0.3 Ti 0.1 O 2 (NCFMT), which exhibits improved reversible specific capacity and exceptional cycling stability. Replacing Ti 4+ with Sn 4+ ions (NaNi 0.3 Cu 0.1 Fe 0.2 Mn 0.3 Sn 0.1 O 2 ; NCFMS) results in poor structural reversibility and diminished cycling stability. Our investigations suggest that the structural integrity of the layered cathode is affected by the compatibility of constituent elements within the transition metal layers (TMO 2 ). In NCFMS, planar strain induced by metal-ion displacement triggers elemental segregation and crack formation during repeated cycling. In contrast, NCFMT demonstrates a robust structural framework for stable Na + storage due to its high mechanochemical compatibility among constituent elements. This understanding provides insights for designing outstanding layered high-entropy cathode materials.
研究领域:
材料科学
·
电化学
·
电池技术
✓ 已验证
DOI
高影响因子
Energy Storage Materials
·
2024
·
IF 18.9
Ziming Wang,Hao Chen,Qi Zhao,Yu Shi,Haiyang Wang,Yuxuan Ye,Yu Guo,Zhiguo Du,Shubin Yang
Although O3-type layered oxides have become viable cathode materials for sodium-ion batteries (SIBs) due to their high energy densities , they still suffer from narrow ion channels and serious structure degradation, severely jeopardizing their electrochemical properties . Here, a stable O3-type layered oxide NaNi 0.4 Mn 0.4 M 0.2 O 2 (M= Fe, Cu, Mg, Ti, Sn) (HE-NaNM) was synthesized by a high-entropy doping strategy. Owing to the introduction of the metal cations with ionic radiuses in a range of 0.61-0.73 Å into the layered structure, the lattice is expanded from 15.94 to 16.03 Å in c -axis, associated with a high distortion of TMO 6 octahedrons, offering broad channels for sodium-ion transport in the lattices. Moreover, such expanded lattices and highly distorted TMO 6 octahedrons enable to efficiently restrain the migration of TM ions and the severe sliding of TMO 2 slabs, affording one-step reversible structure evolution between O3 and P3 phase during sodium extraction/insertion without formation of harmful interphases. As a result, a good rate capability of 77.9 mAh g -1 at 10 C and a long-term cycling stability up to 400 cycles at 5 C are achieved for sodium storage.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Materials Today Communications
·
2025
·
IF 4.5
Junyan Lin,Lele Chen,Chubin Li,Zuyun Chen,Jiapei Yang,Yuqi Zeng,Yuanxin Jiang,Yu Zhang,Weiwei Xing,Jiye Zhang,Jian-Guo Chen,Kai Guo
Grain boundaries or phase boundaries, which play a pivotal role in decoupling electrical and thermal transport, are frequently engineered to regulate thermoelectric performance. Although extensive research has been conducted on their composition, density, coherency, and width, relatively limited attention has been paid to the strategic utilization of local electric fields at these interfaces for manipulating charge carrier and phonon transport. By incorporating piezoelectric material Pb(Zr 0.50 Ti 0.44 Fe 0.06 )O 3 into thermoelectric material Ge 0.94 Sb 0.06 Te, a local electric field is generated that effectively impedes the transport of low-energy holes. This innovative approach results in a noteworthy enhancement of the Seebeck coefficients in the composites without compromising electrical conductivity. Consequently, an improvement in zT values can be achieved for the sample Ge 0.94 Sb 0.06 Te+ 0.3 wt% Pb(Zr 0.50 Ti 0.44 Fe 0.06 )O 3 , showing a 15 % increase compared to the sample without Pb(Zr 0.50 Ti 0.44 Fe 0.06 )O 3 . Simulation results further corroborate the practical significance of this approach, predicting an impressive conversion efficiency of 10.7 % for a single-leg thermoelectric device, thereby underscoring its considerable potential for power generation applications.
研究领域:
材料科学
·
热电材料
·
固体物理
·
纳米技术
·
能量转换
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2022
·Vol. 10
·期 28
·14943-14953
·
IF 14.511
Kanghui Tian,Huan He,Xiao Li,Dan Wang,Zhiyuan Wang,Runguo Zheng,Hongyu Sun,Yanguo Liu,Qinchao Wang
Complex phase transitions induced by interlayer slides in layered cathode materials lead to poor cycling stability and rate capability for sodium-ion batteries. Herein, we design and prepare a new six-component high-entropy oxide (HEO) layered cathode O3–Na(Fe0.2Co0.2Ni0.2Ti0.2Sn0.1Li0.1)O2 to enable highly reversible electrochemical reaction and phase-transition behavior. The HEO cathode exhibits good cycling performance (capacity retention of ∼81% after 100 cycles at 0.5C) and outstanding rate capability (capacity of ∼81 mA h g−1 at 2.0C) due to the higher sodium diffusion coefficient (above 5.75 × 10−11 cm2 s−1) than most reported O3-type cathodes. Moreover, the high-entropy cathode has superior compatibility with the hard carbon anode and delivers a specific capacity of 90.4 mA h g−1 (energy density of ∼267.5 W h kg−1). Ex situ X-ray diffraction proves that the high-entropy designing effectively suppresses the intermediate phase change to achieve reversible O3–P3 phase evolution, and in turn stabilizes the layered structure. X-ray absorption spectroscopy and Mössbauer spectrum of 57Fe suggest that Ni2+/Ni3.5+, Co3+/Co3.5+, and part of Fe3+/Fe3.5+ redox reaction contribute the charge compensation. The enhanced performance can be attributed to the disordered distribution of multi-component transition metals in HEO suppressing the ordering of electric charges and sodium vacancies, thereby inhibiting the interlayer slide and phase transition.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
OPTICAL MATERIALS
·
2022
·
IF 3.754
Rong Zhuang,Bijun Fang,Shuai Zhang,Xiaolong Lu,Jianning Ding
A series of [(Ba (1-0.3y) Ca 0.3y ) 1-x Sm x ][Ti (0.8+0.2y) Hf (0.2-0.2y) ]O 3 (Sm 3+ -doped (1-y)Ba(Ti 0.8 Hf 0.2 )O 3 -y(Ba 0.7 Ca 0.3 )TiO 3 , abbreviated as Sm 3+ -doped BCTH, or (1-y)BHT-yBCT:xSm 3+ , x = 0.0005–0.03, y = 0.2–0.7, y representing the mole fraction of (Ba 0.7 Ca 0.3 )TiO 3 ) nano phosphors were prepared by a hydrothermal method . The Sm 3+ ions doping amount and triple-point morphotropic phase boundary (TMPB) composition dependent photoluminescence properties were systematically investigated. The hydrothermal synthesized powders present rather pure pseudo-cubic perovskite phase structure at room temperature and locate on the rhombohedral side of MPB. Under the excitation of 409 nm light, the powders exhibit dominant orange-red emission peaks with characteristic emission of the Sm 3+ ions at around 564 nm, 596 nm, 644 nm, and 703 nm, relating to the transitions of 4 G 5/2 → 6 H 5/2 , 6 H 7/2 , 6 H 9/2 and 6 H 11/2 , respectively. The BHT-0.5BCT:0.005Sm 3+ powder exhibits optimal emission in these Sm 3+ -doped BCTH powders. Furthermore, the phase transition temperature can be characterized by the multi-feature changes of the temperature dependent fluorescence intensity.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Frontiers of Environmental Science & Engineering
·
2020
·Vol. 15
·期 4
·1-13
·
IF 4.053
Feng Haoran,Liu Min,Zeng Wei,Chen Ying
The present study reports the use of the O 3 /H 2 O 2 process in the pretreatment of the mother liquor of gas field wastewater (ML-GFW), obtained from the multi-effect distillation treatment of the gas field wastewater. The range of optimal operation conditions was obtained by single-factor experiments. Response surface methodology (RSM) based on the central composite design (CCD) was used for the optimization procedure. A regression model with Total organic carbon (TOC) removal efficiency as the response value was established ( R 2 = 0.9865). The three key factors were arranged according to their significance as: pH>H 2 O 2 dosage>ozone flow rate. The model predicted that the best operation conditions could be obtained at a pH of 10.9, an ozone flow rate of 0.8 L/min, and H 2 O 2 dosage of 6.2 mL. The dosing ratio of ozone was calculated to be 9.84 mg O 3 /mg TOC. The maximum removal efficiency predicted was 75.9%, while the measured value was 72.3%. The relative deviation was found to be in an acceptable range. The ozone utilization and free radical quenching experiments showed that the addition of H 2 O 2 promoted the decomposition of ozone to produce hydroxyl radicals (·OH). This also improved the ozone utilization efficiency. Gas chromatography-mass spectrometry (GC-MS) analysis showed that most of the organic matters in ML-GFW were degraded, while some residuals needed further treatment. This study provided the data and the necessary technical supports for further research on the treatment of ML-GFW.
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2020
·Vol. 49
·期 4
·2608-2616
·
IF 1.774
Chen Gang,Ji Cong,Fan Tao,Li Jiahua,Fu Chunlin,Cai Wei,Gao Rongli,Wang Zhenhua,Deng Xiaoling,Fan Peigeng
The (1 − x ) Bi (Fe 0.9 Al 0.05 Yb 0.05 ) O 3 – x BaTiO 3 (BFAYO- x BTO) ceramics were synthesized by microwave sintering (MWS) and conventional sintering (CS) methods. The crystal structure, surface morphology, dielectric and ferroelectric properties were investigated. XRD patterns show that BTO tetragonal and BFO rhombohedral phases coexist in both MWS and CS samples, and that the diffraction peaks of MWS samples shift to lower angles due to the larger ionic radius of Ba 2+ compared with Bi 3+ . The lattice constant of BFAYO- x BTO ceramics increases with the increase of BTO content. It was found that the average grain size of the MWS ceramic is much smaller than that of the CS ceramic. Dielectric measurements reveal that the dielectric loss and dielectric constant increase with BTO content increasing. The introduction of BTO into BFAYO-based ceramic contribute to the enhancement of the dielectric relaxation behavior. The P – E hysteresis loops demonstrate that the remnant polarization ( P r ) and the coercive field ( E C ) of the MWS samples are smaller than those of the CS samples. P r and E C first increase, then decrease and then increase again with the increase of BTO content. The maximum and minimum values of the remnant polarization were obtained at x = 0.25 and 0.3, respectively.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 5.6
Fengyun Liu,Lu Li,Jialiang Zhang
Simultaneously achieving high piezoelectric properties and good piezoelectric thermal stabilities (of weak temperature dependence and little thermal-aging degradation) in (K,Na)NbO 3 -based ceramics is quite challenging due to the orthorhombic-tetragonal (O-T) phase transition. We have found recently an intriguing composition of 0.98(K 0.50 Na 0.50 ) 0.98 Li 0.02 (Nb 0.965 Sb 0.035 )O 3 -0.02(Bi 0.50 Na 0.50 )HfO 3 (abbreviated as KNNLS-BNH). Its ordinary ceramic shows high piezoelectric properties of d 33 = 330 pC/N, k p = 0.52, k t = 0.45 and k 33 = 0.65 at room temperature and considerably good piezoelectric thermal stabilities. The <00l>-textured ceramic has a highly diffused O-T phase transition, and the largely enhanced piezoelectric temperature stability in general. Specifically, the d 33 value is about 320 pC/N and remains almost unchanged over a wide temperature range from room temperature to 180 °C. It seems that the good piezoelectric thermal stabilities observed in this textured KNNLS-BNH ceramic should be ascribed to its compositional character of inherent thermal-aging stability and the highly diffused O-T phase transition.
✓ 已验证
产品关联
DOI
高影响因子
CHINESE CHEMICAL LETTERS
·
2024
·Vol. 36
·期 10
·110388
·
IF 9.4
Wenya Li,Yuanqi Yang,Yuqing Yang,Min Liang,Huizi Li,Xi Ke,Liying Liu,Yan Sun,Chunsheng Li,Zhicong Shi,Su Ma
The development of high-performance cathode materials is critical to the practical application of sodium-ion batteries (SIBs). O3-type NaCrO 2 (NCO) is one of the most competitive cathodes, but it suffers from rapid capacity decay caused by severe irreversible structural evolution. An Mg-Ti co-doped Na 0.99 Cr 0.95 Mg 0.02 Ti 0.03 O 2 (NCO-MT) cathode material is designed and synthesized via a facile solid-state reaction to enhance the cyclability of NCO. A capacity retention of 71.6% after 2500 cycles with the capacity fade rate of 0.011% per cycle is achieved for NCO-MT at 5 C, which is attributed to the highly reversible crystal structure during cycling. Our findings offer a novel insight into the high-performance O3-type layered cathode materials for SIBs and are beneficial to promote the development of high-rate SIBs.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Ke Xue,Shenglong Yang,Feiyan Lai,Xiaohui Zhang,Yishun Xie,Guangchang Yang,Kai Pan,Qingyu Li,Hongqiang Wang
O3-type layered oxides are considered promising cathode materials for next-generation high-energy-density sodium-ion batteries (SIBs). However, they face challenges, such as low rate capacity and poor cycling stability, which arise from structural deformation, sluggish Na+ diffusion kinetics, and interfacial side reactions. Herein, a synergistic substitution strategy for transitional and interstitial sites was adopted to improve the structure stability and Na+ diffusion kinetics of the O3-type NaNi0.2Fe0.4Mn0.4O2. Simulation results indicate that Co3+/B3+ codoping effectively lowers the Na+ migration energy barrier. In addition, the synergistic effect of Co3+/B3+ codoping provides ultralow lattice strain during repeated Na+ deintercalation/intercalation. In situ characterization verified that the complex phase transformation during charge and discharge was suppressed, thereby significantly improving the structural stability. At 1 and 3 C, the capacity retention of the modified O3–Na(Ni0.2Fe0.4Mn0.4)0.96Co0.04B0.02O2 (NFMCB) improved from 29.6% and 1.7% to 86.7% and 88.6% after 200 cycles, respectively. Even at 10 C, it could still produce 107.2 mAh·g–1. Furthermore, full cells assembled with this material and commercial hard carbon exhibit a high energy density of 316.2 Wh·kg–1 and a capacity retention of 80.8% after 200 cycles at 1 C. It is expected that this strategy will facilitate the commercialization of O3-type layered oxides.
研究领域:
材料科学
·
电化学
·
储能
·
电池技术
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Si-Yuan Zhang,Ya-Nan Zhou,Lianzheng Yu,Min Fan,Wan-Ping Chen,Sen Xin,Ya-Xia Yin,Sailong Xu,Yu-Guo Guo
Sodium-ion batteries (SIBs) are currently the most promising candidates for large-scale energy storage devices owing to their low cost and abundant resources. Titanium-based layered oxides have attracted widespread attention as promising anode materials due to delivering a safe potential of about 0.7 V (vs Na+/Na) and a small volume contraction during cycles; P2-type Ti-based layered oxides are typically reported, due to the challenging synthesis of the O3-type counterpart resulting from the high percentage of unstable Ti3+. Herein, we report an anomalous O3–Na2/3Ni1/3Ti2/3O2 layered oxide as an ultrastable and high-rate anode material for SIBs. The anode material delivers a reversible capacity of 112 mA h g–1 after 300 cycles at 0.1 C, a good capacity retention rate of 91% after 1400 cycles at 2 C, and, in particular, a capacity of 52 mA h g–1 even at a high rate of 20 C (1780 mA g–1). Furthermore, the in situ X-ray diffraction monitoring reveals no phase transitions and almost zero strain both underlie the good long-cycle stability. The measured high apparent Na+ diffusion coefficient (2.06 × 10–10 cm2 s–1) and the low migration energy barrier (0.59 eV) from density functional theory calculations are responsible for the superior rate capability. Our results promise advanced high-performance O3-type Ti-based layered oxides as promising anode materials toward application for SIBs.
研究领域:
材料科学
·
储能
·
电化学
·
电池技术
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）