Nano-Micro Letters
·
2020
·Vol. 12
·期 1
·1-16
·
IF 12.264
Zhang Shucong,Wang Wenbin,Hu Feilong,Mi Yan,Wang Shuzhe,Liu Youwen,Ai Xiaomeng,Fang Jiakun,Li Huiqiao,Zhai Tianyou
The 2D CoOOH sheet-encapsulated Ni 2 P into tubular arrays electrocatalytic system with expediting mass transport, structural stability, and tuned electron was conceptually proposed.
The designed electrocatalysts realize expectant 1000 mA cm −2 -level-current-density hydrogen evolution in neutral water for over 100 h.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DESALINATION
·
2022
·
IF 11.211
Ju Miao,Kaiyu Zhao,Feng Guo,Lina Xu,Yingchun Xie,Tianlong Deng
Lithium-ion sieves (LIS) have gained significant interest in lithium recovery from geothermal water . However, the severe loss and low recyclability of the powder adsorbents restrict their practical application. Here, the symmetric mixed matrix membranes adsorbents of LIS (MMMs-LIS) were prepared after doping the dopamine-modified LIS into polysulfone (PSf) matrix by breath figure approach with the characters of low thickness, high exposure area of H 2 TiO 3 (HTO) and high structural stability. The hydrophilic dopamine (DA) would probably promote the condensate water droplets to penetrate PSf matrix and make the smaller HTO/DA preferably emerge on the pore surfaces, accelerating the intercalation of Li + into the vacancies of HTO on the premise of the strengthened interfacial interaction between HTO/DA and PSf matrix. Therefore, the well-designed MMMs processed a comparable Li + adsorption capacity of 25.01 mg·g −1 and an equilibrium adsorption time of 45 min to powdery HTO during the dynamic adsorption process at 298.15 K (C 0 = 25.78 mg·L −1 , pH = 12.0). Moreover, Ti 4+ loss rate of HTO in MMMs decreased from 10.5% down to 1.1% after the first desorption and then gradually alleviated after multiple cycles until stabilized at 2.3%, indicating the excellent structural stability. These results suggest the great potentials of MMMs for highly efficient and sustainable lithium recovery from geothermal water .
研究领域:
材料科学
·
环境工程
·
化学工程
·
可持续技术
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2019
·
IF 3.375
Hao Chen,Li Xiao,Pengcheng Liu,Han Chen,Zhimei Xia,Longgang Ye,Yujie Hu
Herein, a strategy is presented for improving the electrochemical performance of a LiNixCoyMn1–x–yO2 layered oxide involving the coating of rock salt-type LiTiO2 on the surface via a hydrothermal method followed by a calcination process. A thickness of approximately 10 nm of LiTiO2 coated on the surface of LiNi0.5Co0.2Mn0.3O2 (NCM523) has been achieved, and the optimal molar ratio (LiTiO2/NCM523) is found to be 1.0 mol %. The LiTiO2@LiNi0.5Co0.2Mn0.3O2 when used as a cathode material exhibits not only a higher capacity retention but also a more enhanced rate performance in comparison with that of pristine NCM523. The LiTiO2 layer protects the NCM523 active particles from being eroded by the electrolyte and reduces the volume change of the electrode active particles before and after lithium-ion intercalation/deintercalation during cycling. These new findings contribute toward the design of a stable structured nickel-based cathode material for lithium-ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2025
·Vol. 41
·期 2
·333-342
·
IF 3
Lin Huahui,Shen Yu,Wei Li,Song Ran,Wu Fan,Wei Peng,Yang Zhenzhong,Ren Yurong,Qu Ke,Ding Zhengping
Ultra-high nickel layered cathodes (Ni⩾95%) have emerged as prospective candidates for next-generation lithium-ion batteries (LIBs) due to their exceptional specific capacity and cost-effectiveness. However, the commercial application of these cathodes has been hindered by several challenges, including structural instability during cycling, high sensitivity to air, and slow Li + migration. In this research, a one-step modification strategy was developed to simultaneously achieve Mg doping and Li 3 PO 4 layer coating for the ultra-high nickel cathodes. Characterization results demonstrated that Mg doping not only alleviates lattice strain changes during the H2–H3 phase transition (H2: the second hexagonal phase; H3: the third hexagonal phase) but also serves as a structural anchor, preventing Ni 2+ migration and occupation within the Li layer. The Li 3 PO 4 surface coating layer acts as an electrochemical shield, protecting against interfacial side reactions and enhancing the Li + diffusion rate. As a result, the LiNi 0.95 Mn 0.05 O 2 cathode, with both internal and external modifications, demonstrates significant improvement in cycling stability (85.7% capacity retention after 100 cycles) and Li + transport performance (130.6 mA·h·g −1 at 10 C, 1 C=189.6 mA·h·g −1 ), providing a solid foundation for the further development and application of ultra-high nickel cathodes.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2025
·
IF 14.9
Xinting Cao,Niaz Ahmad,Chaoyuan Zeng,Haonan Pei,Ze Hua,Ruiwen Shao,Leining Zhang,Wen Yang
Developing high-voltage LiCoO 2 (LCO) is essential in realizing practical all-solid-state lithium batteries (ASSLBs). However, high voltage-induced structural instability and oxygen evolution are crucial for the fast degradation of layered metal oxide cathodes. This study reveals that the zirconization on the near-surface region of LCO shows superior electrochemical performance at high voltage (≥ 4.5 V). High-angle annular dark field-scanning transmission electron microscopy firstly reveals the formation of sub-nanoscale Li 2 CoZrO 4 with disordered rock salt ( α -LiFeO 2 ) phase on the surface of LCO. Furthermore, zirconization could prevent the bending of the Co–O layers at high voltage, significantly inhibiting the formation of microcracks after many cycles and enhancing the structural stability of LCO, as further confirmed by high-resolution transmission electron microscopy. Further, Electron paramagnetic resonance and Electron energy loss spectroscopy provide direct experimental evidence that lattice oxygen on LCO at high voltage has greatly deactivated in sub-nanoscale zirconization (Li 2 CoZrO 4 ). Density functional theory calculations reveal that Li 2 CoZrO 4 enhances the stability of lattice oxygen. Therefore, in ASSLBs, LZSO@LCO cathode exhibits impressive electrochemical cycling stability, e.g., 78.1% capacity retention after 1000 cycles at 0.5 C and 71.2% capacity retention over 100 cycles at 0.1 C at an extremely low temperature of −20 °C.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Xiaomin Song,Donghan Jia,Shanhu Sun,Xiaoyu Sun,Haobin Zhang,Shiliang Huang,Huiyang Gou,Jie Sun,Jinjiang Xu
Supramolecular assembly has emerged as a promising strategy to drive the development of high-performance energetic materials (HEDMs). In this study, we reported the fabrication of novel HNIW/N 2 host–guest explosives using DAC combined with pressure–temperature (P-T) strategy. The molecular composition and crystal structure were analyzed through Raman spectroscopy, synchrotron radiation XRD and DFT calculations. High-pressure Raman spectroscopy and quantum chemical calculations confirmed the stabilizing effect of nitrogen on structural stability of explosive crystals. Remarkably, HNIW/N 2 exhibited superior detonation performance (D V = 9646 m/s, P = 43.4 GPa), and the formation mechanism of host–guest explosives was illustrated from the perspective of crystal stacking. The newly constructed HNIW/N 2 host–guest explosives realized the green and safe incorporation of nitrogen, as well as enhanced the structural stability and detonation performance for explosive crystals. The study can offer valuable insights into the design of advanced energetic materials and underscore the potential of supramolecular assemblies in this field.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
IONICS
·
2025
·
IF 2.6
Zhou Yongkang,Su Zihao,Miao Jie,Peng Gongchang,Wang Hao
O3-type NaNi 1/3 Fe 1/3 Mn 1/3 O 2 (NFM) is recognized as a highly promising cathode material for sodium-ion batteries owing to its cost-effectiveness, substantial theoretical capacity, and facile synthesis. Nevertheless, this material suffers from rapid capacity decay caused by structural degradation and irreversible phase transitions at high voltages (> 4.0 V vs. Na + /Na). Herein, partial substitution of Fe 3+ sites with Ti 4+ in the transition metal layer was implemented. Systematic investigations via X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) reveal that Ti substitution effectively stabilizes the layered framework by suppressing detrimental phase transitions through enhanced structural pillar effects. The optimized NaNi 1/3 Fe 0.23 Mn 1/3 Ti 0.1 O 2 delivers a specific capacity of 144.1 mAh g −1 within 2.0–4.2 V at 0.1 C, demonstrating 71.3% capacity retention after 100 cycles at 1 C (130 mA g −1 ). This work establishes a viable strategy for enhancing structural stability in O3-type cathodes through selective cation substitution. Graphical
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
·
2025
·
IF 2.6
Hou Peng-qing,Qu Yingdong,Huang Rui,Tian Xinru,Li Guanglong,Luo Shaohua
Li 2 FeTiO 4 cathode has emerged as a promising option for lithium-ion batteries because of its outstanding capacity and eco-friendly properties. However the abominable conductivity and ion transports hindered its electrochemical performance. In this work, (Li 1-x K x ) 2 FeTiO 4 (LiFT-Kx, x = 0 and 0.01) cathode materials with were successfully synthesized. Remarkably, there was a notable improvement in the properties of interlayer spacing, ionic conductivity and kinetics. As a result, LiFT-K0.01 cathode expressed splendid initial capacitance (108.8 mAh g −1 , 0.05 C), stability (82.9% over 30 cycles), and rate performance (89.8 mAh g −1 , 82.4% of the original values). This work might provide valuable insights for the exploration of lithium storage with excellent long-term stability, and it might open new possibilities for the development of advanced energy storage technologies based on lithium-ion batteries.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Deshuang Lu,Nikom Klomkliang,Francis Verpoort,Somboon Chaemchuen
Tailor-made unsaturated coordination of metal ions or organic linkers in zeolitic imidazole frameworks (ZIFs) has great potential in tuning the ZIFs’ properties and reactivity for their applications. Taking advantage of the solid-state thermal (SST) method as a facile and eco-friendly synthesis method, the rational coordination of metal ions with imidazole ligands in ZIF-67 through the SST method is investigated. The rational precursor ratio (metal-to-ligand source) under the solvent-free SST method emerges as a perfect strategy to tune the coordinately unsaturated sites within the ZIF-67 frameworks. Different analysis techniques, computational methods (DFT), and catalytic model reactions examine unsaturated coordination in ZIF-67 materials (defect structures). The unsaturated coordination provides unique characteristic properties on materials with excellent catalytic performance. However, the higher reactive properties are negotiated with weaker structural stability on materials. In addition, the post-SST approach is applied to enable rational coordination and modify the pristine ZIF-67 materials. The post-SST method rearranges and modifies coordination in the framework of materials. These findings are crucial to understanding the role of the uncoordinated degree to balance with structural stability based on ZIF-67, which is critical for effective heterogeneous catalysts.
研究领域:
材料科学
·
催化化学
·
计算化学
✓ 已验证
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
·
2017
·
IF 0.736
Hongcheng Peng,Weihong Qi,Wenhai Ji,Siqi Li,Jieting He
Combining the bond-energy model and Debye theory, we generalized the Gibbs free energy model for Cu–Pt nanoparticles (NPs) by introducing a shape factor considering the shape effect. We studied the structural stability of the Cu–Pt NPs and plotted the corresponding composition-, shape- and size-dependent phase diagrams. It is shown that the Cu–Pt NPs can form alloyed structure in a large size range. But when the particle size continues to decrease, the NPs will form the core–shell structure due to surface segregation. Meanwhile, the composition segregation could make the atoms of less-content element to gather in the surface. The predictions from the present calculated phase diagrams are consistent with a series of experimental results in literatures. To further prove the efficiency of the phase diagrams, we synthesized the alloyed Cu–Pt NPs of 4–15 nm by a co-reduction method, which is in agreement with the predictions from the phase diagrams.
研究领域:
材料科学
·
纳米技术
✓ 已验证
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Hongwei Tang,Mingkun Wang,Juan Xie,Kang Zhang,Pengcheng Su,Xiangyi Zheng,Kexin Wan,Huilong Dong,Jishi Wei,Yihui Li
Layered MnO2 is regarded as one of the most prospective cathode materials for aqueous zinc-ion batteries (AZIBs), yet it is impeded by its inferior conductivity and the poor cycling stability caused by the manganese dissolution. Herein, a facile alkali-metal-ion intercalation strategy is proposed, where sodium ion and potassium ion are adopted to verify the universality of the alkali-metal-ion intercalators in promoting the zinc-ion storage capability of MnO2. The intercalated alkali-metal ions could not only effectively promote the structural stability by serving as pillars but also improve the conductivity by modulating its electronic structure. Moreover, the extra oxygen defects are introduced during the intercalation of alkali-metal-ion “pillars”, which is conducive to the mitigation of manganese dissolution by regulating the Mn–O bond and acceleration of Zn2+ kinetics. As a result, the proposed Na+-intercalated MnO2 (NMO) and K+-intercalated MnO2 (KMO) present enhanced electrochemical performances and Zn2+ transfer kinetics. Specifically, NMO 600 and KMO 650 deliver the capacities of 236.3 and 158.2 mAh g–1 after 100 cycles at 0.1 A g–1, respectively, which are larger than that of pristine δ-MnO2. This work substantiates the potential of alkali-metal-ion “pillars” in improving the zinc-ion storage capability of layered MnO2 cathode and provides a promising way to develop high-performance manganese-based cathode materials via a facile solid-phase method.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Xin Yu,Dandan Yu,Yanli Li,Huanle Niu,Tiantian Zhang,Wenyan Yang,Dongfei Sun
Aqueous zinc ion batteries (AZIBs) are gaining considerable research attention owing to their high safety and low cost. Although MnO 2 is a promising cathode, the inevitable MnO 2 dissolution and slow kinetics still limit their application in AZIBs. Herein, we propose a Fe 3+ and K + co-doping design of MnO 2 (labeled Fe-KMnO) to improve the structural stability and kinetics. Specifically, the introduction of Fe 3+ and K + can reduce the particle size and enlarge the interlayer spacing of MnO 2 , while the lattice substitution of Fe 3+ can reduce Zn 2+ diffusion barriers inside the cathode by the density functional theory calculations, leading to the good rate stability. Meantime, the TiO 2 coated Zn foil is designed to alleviate corrosion and suppress Zn dendrites, thus reduce the interfacial resistance and improve the dynamics of Zn-MnO 2 batteries. Based on the advantages of Fe-KMnO material and the effective protection of Zn anode, Fe-KMnO electrode shows excellent performance. When it is applied to the cathode material for aqueous zinc ion battery, the reversible specific capacity of 367.4 mAh g −1 is obtained at the current density of 0.1 A g −1 , superior cycle stability (a capacity of 109.5 mAh g −1 at 1 A g −1 after 5000 cycles), making it a promising cathode for high-performance AZIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）