FOOD CONTROL
·
2020
·
IF 4.258
Yuzhu Li,Kezhou Cai,Gaofeng Hu,Qianhui Gu,Peijun Li,Baocai Xu,Conggui Chen
The influence of six sodium-reducing treatments (F2: 0.6% KCl+1.8% NaCl; F3: 0.6% CaCl 2 +1.8% NaCl; F4: 0.36% KCit+0.24% KCl+1.8% NaCl; F5: 0.12% MgCl 2 +0.48% CaCl 2 +1.8% NaCl; F6: 0.36% KL+0.24% KCl+1.8% NaCl; F7: 0.36% CaL+0.24% KCl+1.8% NaCl) on the formation of polycyclic aromatic hydrocarbons (PAHs) in baked bacon was evaluated. Compared with the total amount of the four PAH 4 (10.08 μg/kg) in the control F1 group without sodium reduction, including (benzo [ a ]anthracene (BaA), chrysene (CHR), benzo [ b ]fluoranthene (BbFA), and benzo [ a ]pyrene (BaP), the application of F3 (6.37 μg/kg), F5 (6.25 μg/kg), F6 (5.85 μg/kg) and F7 (5.56 μg/kg) reduced the content of the PAH4 (P < 0.05), while the treatment of F4 (16.60 μg/kg) increased the concentration of the PAH 4 (P < 0.05). The correlation analysis showed that the occurrence of PAH4 was significantly correlated with the pH and b* value (P < 0.05). The determination of hydroxymethylfurfural (HMF) content suggested that the influence of substitute salts on the PAH4 was related to Maillard reactions . A pH adjustment rescued the impact of the substitute salts on the b* value, the HMF content and the formation of PAH4, revealing that pH variations played a vital role in substitute salts influencing the generation of PAH4. Sodium sulphite decreased the b* value, the amount of the HMF and the concentration of PAH4 (P < 0.05), which further verified that substitute salts influence the formation of PAHs in sodium-reduced bacon in a mechanism involving Maillard reactions.
研究领域:
食品科学
·
生物化学
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DOI
高影响因子
Journal of Materials Chemistry A
·
2024
·Vol. 12
·期 45
·31508-31517
·
IF 10.7
Jing Yao,Meichun He,Pengju Li,Chao Zhu,Dongmei Zhang,Cunyuan Pei,Bing Sun,Shibing Ni
NaxV2O5 is one type of representative cathode material for Li-/Na-ion batteries owing to its relatively high potential vs. Li/Na. Herein, a novel NaxV2O5 anode was successfully designed and synthesized via a reversed strategy, i.e., tuning the Na content in the NaxV2O5 cathode. Orthorhombic α′-NaxV2O5 (x ≈ 0.67) is firstly demonstrated to be a new high-performance anode for lithium-ion batteries (LIBs). Benefiting from its layered structure and the reasonably intercalated Na+, the as-synthesized α′-NaxV2O5 displays a high reversible capacity (535.8 mA h g−1 at 0.2 A g−1), excellent rate capability and ultra-long cycle life (91.2% capacity retention after 10 000 cycles). Furthermore, the exceptional performance of the α′-NaxV2O5 anode is showcased in an all-vanadium-based full cell. Importantly, ex situ XRD and XPS demonstrated that LizNaxV2O5 is the main and stable active material during cycling, and the lithium-ion storage process is mainly determined by pseudocapacitive behavior. This work brings new insights into the field of vanadate-based anode materials for LIBs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2020
·
IF 6.306
Yu Wang,Ying Zhou,Xi-xi Wang,Fei Ma,Bao-cai Xu,Pei-jun Li,Cong-gui Chen
The improvement mechanism of high pressure processing (HPP, 100–300 MPa, 10 min) on the gelation properties of reduced-sodium (0.3 M sodium chloride) myofibrillar protein containing 20 mM CaCl 2 (MP-Ca) were explored. The results showed that the water holding capacity (WHC) and strength of MP-Ca gel reached the maximum values under 200 MPa. This was attributed to substantial solubilization of myosin heavy chain and actin, a decreased protein aggregation ability and the exposure of both tyrosine and tryptophan residues resulting from the unfolding of the protein tertiary structure. However, 300 MPa induced the hydrophobic rearrangement of MP and the disulfide cross-linking of the myosin S-1 subfragment, leading to the formation of large protein aggregates and decreased solubility of MP, thus resulting in a weaker gel with a reduced WHC. Therefore, moderate HPP (approximately 200 MPa) and low concentrations of CaCl 2 could potentially improve the gelation properties of reduced-sodium meat products.
研究领域:
食品科学
·
生物化学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2024
·Vol. 171
·期 8
·080526
·
IF 3.1
Xiaoning Li,Mengmeng Liu,Wenjuan Zhang,Yanli Zhang,Jiakun Zhou,Wenzhang Zhou,Naixin Wang,Weiwei Xu,Kehua Dai
O3-type NaNi0.4Fe0.2Mn0.4O2 cathode materials are structurally stable and have a high nickel content, allowing for stable high-capacity output. However, their performance needs further improvement. First, we investigated the effects of different sodium contents on the structure, morphology, and electrochemical performance of NaxNi0.4Fe0.2Mn0.4O2(x = 0.85, 0.9, 0.95, 1, 1.05) materials. The Na0.9Ni0.4Fe0.2Mn0.4O2 material exhibited initial discharge specific capacities of 148.11 and 181.80 mAh·g−1 at voltage ranges of 2–4.1 V and 2–4.2 V, respectively. To further optimize the cycling performance of the material, we doped NaNi0.4Fe0.2Mn0.4O2 with different calcium contents. Ca2+ doping significantly enhanced the electrochemical performance of the material. Subsequently, we synthesized Na0.96Ca0.02(NMF)0.95Zn0.05O2, and the dual-doped NMF-Ca0.02Zn0.05 maintains approximately 80% capacity retention at 1–4.05 V, and around 70% as the cut-off voltage increases to 4.15 V in full cells.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Shao-hua Luo,Ge Wang,Guodong Hao,Xinru Tian,Liu Yang,Sheng-xue Yan
Na x Ni 1/3 Fe 1/3 Mn 1/3 O 2 cathode material with high stability and high capacity is favored by researchers. However, during the charge-discharge process, Na x Ni 1/3 Fe 1/3 Mn 1/3 O 2 undergoes a series of complex phase transitions, which lead to the attenuation of its electrochemical performance and severely limit its application. In this paper, a series of Na x Ni 1/3 Fe 1/3 Mn 1/3 O 2 (0.6 ≤ x ≤ 1.0) cathode materials are synthesized by the high-temperature solid-state method, and the influence of varying sodium contents on the structure, Na occupancy, and various performance of the materials is analyzed. The results indicate that all four samples are P2 phase. However, they have different sodium sites (directly under the transition metal element (Na f ) and directly under the gap of the three transition metal elements (Na e )) occupancy. It is found that the Na f to Na e ratio of Na 0.9 Ni 1/3 Fe 1/3 Mn 1/3 O 2 material is 0.55, at which time Na f /Na e is lower and the electrochemical performance is the best. Its initial discharge specific capacity is 112mAg −1 , and after the multiplicative performance test, the discharge specific capacity is 95.7mAg −1 . The study shows that by adjusting the initial sodium content, the occupancy rate of different sodium sites is changed, which significantly affects the morphology, capacity, and cycling stability of the material.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
RENEWABLE ENERGY
·
2022
·
IF 8.634
Enyi Hu,Faze Wang,Muhammad Yousaf,Jun Wang,Peter Lund,Jinping Wang,Bin Zhu
Samarium oxide (Sm 2 O 3 ), a rare earth sesquioxide, shows that a great potential in proton-conducting fuel cells. However, the stability of Sm 2 O 3 based cell remains a challenge. Herein we reported a facile method for enhancing the stability via the incorporation of sodium content into Sm 2 O 3 . This study discloses that the existence of sodium induces phase transition of Sm 2 O 3 from monoclinic to cubic phase beneficial for fast proton transportation. Further mechanism investigation reveals that the cubic phase structure of Sm 2 O 3 is stabilized resulting from substitution of sodium. Compared with commercial Sm 2 O 3 (CSM), the fuel cell employing Na–Sm 2 O 3 (NSM) as electrolyte delivers an improved peak power density of 570 mW cm −2 and the extended stability over 100 h under 130 mWcm −2 at 520 °C. In this study, NSM is successfully developed as a stable electrolyte material for proton conduct fuel cells, expanding its application in electrochemical devices.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
高影响因子
SOLID STATE IONICS
·
2024
·
IF 3
Wen Chao Chen,Shao Hui Xu,Guang Tao Fei,Shi Jia Li,Hai Yan Xu,Xin Feng Li,Hao Miao Ouyang
Prussian blue analogues (PBAs) are considered as an economical electrode material for sodium-ion batteries, which can be synthesized on a large scale through a simple and low-cost co-precipitation method. The physical parameters of PBAs have a significant impact on their electrochemical performance , among which sodium content is considered one of the key factors affecting electrochemical performance. In this study, PBAs with different sodium contents are prepared using sodium citrate-assisted co-precipitation method, and the influence of sodium content on the electrochemical performance is systematically investigated. Furthermore, the morphological and structural changes of cubic and monoclinic PBAs samples after cycling are studied to explore the intrinsic mechanism of how sodium content affects the electrochemical performance. The study reveals that when the sodium content exceeds 1.5, the structure of PBAs will transfer from cubic phase to monoclinic phase. In terms of electrochemical performance, compared to cubic phase, monoclinic phase samples exhibit higher initial capacity, but lower rate capability and cycling performance, and their cycling stability deteriorates more severely with increasing sodium content. The cubic phase exhibits a more stable crystal structure compared to the monoclinic phase after cycling. During the charge-discharge process, the de-intercalation of excessive sodium ions in monoclinic PBAs leads to structural distortion, triggering the phase transition and resulting in the destruction of the crystal structure, which is the fundamental reason for the influence of sodium content on the electrochemical performance.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
·
2021
·Vol. 56
·期 12
·6322-6334
·
IF 3.713
Yu Wang,Yan-hong Bai,Fei Ma,Ke Li,Hui Zhou,Cong-gui Chen
Summary A combination of high-pressure processing (HPP, 200 MPa, 10 min) and CaCl 2 (0.2%, w/w) on the cooking loss (CL), expressible moisture (EM), textural properties (hardness, springiness, cohesiveness, chewiness and firmness) and sensory attributes of reduced-sodium (1.25% NaCl) chicken meat batters (RCMB) was investigated. The results revealed that combining HPP with CaCl 2 significantly decreased EM, elevated sensory properties and acted synergistically in reducing CL and improving hardness, chewiness and firmness, which enabled RCMB to obtain quality characteristics similar to those with high salt (2.5% NaCl) content. These changes brought about by combined HPP and CaCl 2 could be attributed to increased apparent viscosity and proportion of immobilised water, enhanced rheological (elastic) properties and a denser, homogeneous protein gel network with evenly dispersed small fat globules. It is interesting to take advantage of the synergy between moderate HPP and low concentrations of CaCl 2 to develop meat products with reduced sodium content.
研究领域:
食品科学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2025
·
IF 5.6
Haodi Zhao,Wei Da,Jiale Wang,Xuelei Li,Zhihui Xu,Jiafeng Cao,Aruuhan Bayaguud
Layered oxides have been regarded prospective cathodes for sodium ion batteries (SIBs) owing to their noteworthy capacity and low cost. Nevertheless, this material still faces many challenges in practical applications. Especially, the environmental adaptability of layered oxide cathodes is one of the most momentous considerations for the practical applications. Although many methods have been reported to improve the environmental stability, the effect of sodium content in the cathode material on its environmental stability has always been neglected. In this work, a series of Na x Ni 0.33 Fe 0.33 Mn 0.33 O 2 (NaxNFM, x=0.78, 0.89, 1) cathode materials are synthesized, and the effect of varying sodium contents on the structural characteristics, electrochemical performance, and environmental stability of oxide cathode materials is analyzed. The results explain that all three samples are O3 phase, but the electrochemical performance and environmental stability of cathode materials with different sodium contents have significant differences. Among them, Na0.89NFM cathode exhibits a high initial discharge capacity (134.2mAh g⁻ 1 at 0.1C), excellent cycling stability. Furthermore, after the polepiece exposure for 5 days in an environment of 40% RH and 30°C, Na0.89NFM is less affected and still exhibits excellent electrochemical performances. This work provid es an alternative for the preparation of excellent performance oxide cathode materials with environmental stability for SIBs.
研究领域:
材料科学
·
电化学
·
能源存储
·
无机化学
·
固体物理
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Yu Duan,Zihan Ma,Jiaxuan He,Yingying Huang,Shuo Bao,Jinlin Lu
P2-type layered cathode materials have low energy density due to low initial Na content. In this research, high sodium content P2-type cathode material Na0.8Li0.08Ni0.23Mn0.67Cu0.1O1.92F0.08 (NMC-LF), was synthesized by a simple high-temperature solid-phase method. The strong electronegativity of F allows the local TM-O bond to be transformed into a TM-F bond, and the TMO6 octahedron becomes more stable. The doping of Li+ not only maintains structural stability but also transforms the two-phase reaction in the high-voltage range into a solid-solution reaction. This leads to an effective suppression of the irreversible P2–O2 phase transition in the high-voltage region. At 20 mA·g–1, the initial discharge capacity of NMC-LF reaches 131.05 mAh·g–1. At a high current density of 200 mA·g–1, the discharge capacity reaches 101.9 mAh·g–1 and remains at 99.31% after 150 cycles. The diffusion coefficient of NMC-LF is as high as 8.67 × 10–13 cm2·s–1. Furthermore, the structural evolution during material formation is elaborated by high-temperature XRD, and it is determined that there are no impurities at 900 °C. Under the joint synergy of Li/F/Cu and the design of high sodium content, the long-cyclic and high-rate performance has been significantly improved. In-situ XRD tests show that Li/F/Cu codoping inhibits the P2–O2 phase transition and enhances structural reversibility. This provides a new idea for the research of layered cathode materials.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）