CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Bao-Hong Xu,Yi-Han Song,Guo-Duo Yang,Jia-Yu Zhang,Yu-Qi Liu,Jie-Qiong Liu,Qi-Meng Zhang,Xing-Long Wu,Ming-Xiao Deng,Hai-Zhu Sun
As one of the most important cathode materials for aqueous zinc-ion batteries (AZIBs), polyaniline (PANI) has attracted much attention because of its high electrical conductivity, simple synthesis procedure and excellent redox reversibility. However, the morphology of PANI macromolecules and its spontaneous deprotonation properties lead to low capacity and poor cycle stability, which limits its further application. To address these issues, in this work, PANI is in-situ prepared on the surface of carbon cloth (CC) through chemical oxidation polymerization under the presence of carbonized polymer dots (CPDs). Compared with pure PANI cathode electrodes, the materials with appropriate amount of CPDs (CPDs/PANI@CC-10) show a high specific discharge capacity of 168 mAh g −1 at 0.1 A g −1 . Even at a high current density of 10 A g −1 , CPDs/PANI@CC-10 still exhibits a capacity of 102 mAh g −1 , and maintains 94.3 % of the capacity after 10,000 cycles. The profound mechanism investigation reveals that during the charge/discharge cycles, the percentage of protonated N greatly increases due to the addition of CPDs, and new N Zn O bonds are formed, which is beneficial to more stable cycle and larger amount of Zn 2+ storage. This work provides a new route for control the morphology and structure of PANI, which is of significant for its practical application in AZIBs.
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2024
·
IF 15.7
Yibo Guo,Yuanyuan Xue,Zhen Zhou
The sluggish kinetics of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) pose significant challenges for the viability of rechargeable Zn-air batteries. Developing efficient, cost-effective, stable, and dual-purpose oxygen electrocatalysts remains a formidable hurdle. In this study, we successfully synthesized a highly promising chainmail catalyst named FeNi@NC, comprising ultrathin carbon shells encapsulating FeNi alloy nanoparticles on N-doped graphene-like nanosheets . The strong synergistic effects between FeNi alloys and N-doped carbon shells result in outstanding bifunctional catalytic activity, particularly in alkaline media. Consequently, Zn-air batteries incorporating FeNi@NC as the catalyst demonstrate exceptional performance, operating reliably at high power density with extended lifespan. Furthermore, computational analyses provided further confirmation of the catalytic activity and revealed that the electron transfer from FeNi alloy nanoparticles to the carbon shells activates the carbon surface , leading to enhanced catalytic performance. This research not only sheds light on the rational design and synthesis of heteroatom-doped carbon materials supporting the growth-constrained transition metal alloys but also offers a practical solution for advancing the application of Zn-air batteries.
✓ 已验证
产品关联
DOI
高影响因子
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.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano-Micro Letters
·
2025
·Vol. 17
·期 1
·1-19
·
IF 36.3
Liu Jianghe,Dang Qianxi,Yuwono Jodie,Zhang Shilin,Tai Zhixin,Guo Zaiping,Liu Yajie
A hydrogel electrolyte regulation strategy of the water coordination environment can effectively restrain the hydrogen evolution reaction, Zn corrosion and dendrite formation in the wide-temperature ranges.
Prepared high-environment-adaptable hydrogel electrolytes (HEA-3) exhibits a high reversibility of zinc deposition/stripping (coulombic efficiency of 99.4% for Zn||Cu cell).
Zn-based device using HEA-3 electrolyte can do cycling over 30,000 cycles at a large current density of 2 A g −1 at − 40 °C and also can do normal cycling even at -70 °C.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DESIGNED MONOMERS AND POLYMERS
·
2022
·
IF 3.718
Hong-Mei Liu,Xiao-Na Shang
Through the self-assembly reaction of 5-substituted isophthalic acid and bis(imidazolyl) ligands with Cd(II) ion or Zn(II) ion, two new coordination polymers with the chemical formulae of [Cd(5-meo-ip)(bmip)]n (1) and [Zn(5-pro-ip)(bip)]n·2 n(H2O) (2) (5-meo-H2ip = 5-methoxyisophthalic acid, 5-pro-H2ip = 5-propoxyisophthalic acid, bmip = 1,3-bis(2-methylimidazolyl)propane bip = 1,3-bis(imidazolyl)propane) were successfully obtained and structurally characterized by a series of characterization techniques. Moreover, compounds 1–2 show intense blue luminescence at room temperature. Furthermore, the assessment of their treatment activity on the uterine fibroids combined with ultrasound therapy was evaluated and the specific mechanism was investigated at the same time. Firstly, the effect of compound treatment on uterine fibroids apoptosis was detected via flow cytometry. Next, the apoptotic signaling pathway activation was detected through the Caspase-3 and Caspase-8 Activity Assay Kit.
✓ 已验证
DOI
PubMed
高影响因子
FIRE SAFETY JOURNAL
·
2022
·
IF 3.78
Qinyong Liu,Xingyu Chen,Guiyang Zhu,Xiaoyu Gu,Hongfei Li,Sheng Zhang,Jun Sun,Xiaodong Jin
A novel integrative supramolecular intumescent flame retardant was fabricated by self-assembly of melamine, p -aminobenzene sulfonic acid and phytic acid and was abbreviated as MAP. After chelation with Fe 3+ or Zn 2+ , the resulted products (MAP-Fe and MAP-Zn) were melt-blended with polylactic acid (PLA) to enhance the flame retardancy of PLA. The fire performance was characterized by limiting oxygen index (LOI), UL-94 vertical burning and cone calorimeter tests. The results showed that control PLA was flammable with a low LOI of 20.4%, and it cannot satisfy any UL-94 grade for its severe ignited dripping, whilst the incorporation of 3% MAP-Zn increased the LOI to 29.2％, upgraded the UL-94 rating to V-0, and reduced the peak heat release rate by 18.7%. It was proposed that MAP-Zn mainly promoted the formation of more graphitic carbon in the char residues . In addition, the presence of 3% MAP-Zn slightly reduced the tensile strength of PLA from 64.9 MPa of the control PLA to 60.1 MPa, which met the requirements of most practical applications.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Weiyan Jiang,Huizhong Shi,Miao Shen,Rui Tang,Zhongfeng Tang,Jian-Qiang Wang
The lack of suitable cathode materials with a high capacity and good stability is a crucial problem affecting the development of aqueous Zn-ion batteries. Herein, a novel strategy for the modification of V2CTx through molten salt thermal treatment is proposed. In the novel route, S heteroatoms were introduced into V2CTx through a substitution reaction during the dissolution of Li2S in LiCl–KCl molten salts. Then, surface V2O5 was obtained through the in situ electrochemical charging/discharging of the S-doped V2CTx (MS-S-V2CTx) cathode. The assembled Zn/MS-S-V2CTx battery showed a high reversible discharge capacity of 411.3 mAh g–1 at a current density of 0.5 A g–1, an 80% capacitance retention after long cycle stability tests at 10 A g–1 for 3000 cycles, and a high energy density of 375.5 Wh kg–1 in 2M ZnSO4. Density functional theory calculations demonstrate that the improved electrochemical performance of the cathode can be attributed to the introduced S heteroatoms, which considerably reduced the ion diffusion energy barrier for Zn2+ ions and improved the stability of V2O5. This work provides a novel method to produce highly active and stable vanadium-based cathodes for aqueous Zn-ion batteries.
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL THERMODYNAMICS
·
2016
·
IF 2.196
Pan Liang,Jie Wang,Zhi-Hong Liu
A pure zinc borate, Zn[B 12 O 14 (OH) 10 ], has been synthesized and characterized by XRD, FT-IR, simultaneous TG-DTA techniques, and chemical analysis. The molar enthalpy of solution of Zn[B 12 O 14 (OH) 10 ] (s) in 1 mol·dm −3 HCl(aq) was measured by microcalorimeter at T = 298.15 K. The molar enthalpy of solution of ZnO(s) in the mixture solvent of 2.00 cm 3 of 1 mol·dm −3 HCl(aq) and calculated amount of H 3 BO 3 was also measured. With the incorporation of the previously determined enthalpy of solution of H 3 BO 3 (s) in 1 mol·dm −3 HCl(aq), together with the use of the standard molar enthalpies of formation for ZnO(s), H 3 BO 3 (s), and H 2 O(l), the standard molar enthalpy of formation of −(9646.6 ± 9.6) kJ·mol −1 at T = 298.15 K was obtained on the basis of an appropriate thermochemical cycle. In addition, the molar enthalpy of formation of −9492.7 kJ·mol −1 for [B 12 O 14 (OH) 10 ] 2− has also been estimated by a group contribution method, which has been used to predict the Δ f H m θ of a series of transition metal borates of M[B 12 O 14 (OH) 10 ] (M II = Mn, Zn, Fe, Co, Ni). These estimated data have been used to further compare the stability of this series of transition metal borates.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Yao Zhu,Ke Wang,Jiahui Lu,Zhiyuan Pan,Jian Rong,Tao Zhang,Dongya Yang,Jianming Pan,Fengxian Qiu
Electrospun micro-/nanofibers with tailor-made specific binding sites are extremely popular due to their tremendous potential in separation applications. In this work, teamed boronate affinity (TBA)-functionalized molecularly imprinted hollow carbon electrospun nanofibers (MI-HCESNFs) derived from ZIF-8/PAN fibers with selective binding sites toward shikimic acid (SA) are presented. Each ingredient used in this strategy plays its own part: HCESNFs with excellent structural characteristics as the highly porous electrospun substrate, KH560 as the grafting material for the follow-up polyethyleneimine (PEI) modification, PEI as the dendritic platform to approach more boronic acid owing to its long chain with abundant amino groups, and TBA molecular group as the functional monomer to specifically bind with SA under the neutral condition. Benefiting from the porous structure, the high density of boronic acid, and the highly accessible imprinted sites on the surface, MI-HCESNFs show strong affinity and selectivity to the SA molecules. The adsorption capacity of MI-HCESNFs can reach 127.8 mg g–1, which is 3.1 times larger than that of the non-imprinted material. Besides, MI-HCESNFs are stable when treated with continuous ultrasonication and can be recycled eight times with a slight loss of 8.615% on the adsorption quantity. This work presents a new strategy to prepare boronate affinity adsorbents based on the electrospinning technique for the capture of SA and also proposes a path for the integration of molecularly imprinted polymers and electrospinning.
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2018
·
IF 3.057
Mingxu Sui,Tianqi Fu,Xiaodong Sun,Guangzhen Cui,Xuliang Lv,Guangxin Gu
Unary and binary M 2+ (M=Mn, Co, Ni, Zn) substituted hollow Fe 3 O 4 were prepared by one-step solvothermal method. The crystallographic structure, morphology, element components and microwave absorbing properties of as-prepared products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), Energy-dispersive X-ray (EDX) and vector network analyzer (VNA). The unary and binary Co 2+ substitution of hollow Fe 3 O 4 could result in a significant improvement of microwave absorption performance, including the expanding of effective absorption bandwidth, the thinner thickness and the increment of absorbing intensity. The sample of CoFe 2 O 4 could reach an optimal reflection loss of − 28.78 dB at 15.52 GHz under the thickness of 1.5 mm, moreover, the efficient absorption bandwidth (less than −10 dB) is expanded to 5.56 GHz which is most outstanding among these samples. The minimum reflection loss of Co 0.75 Zn 0.25 Fe 2 O 4 could reach − 49.60 dB at 9.88 GHz under the thickness of 2 mm. The as-prepared products could be used as microwave absorber with the advantages of strong absorption, broad bandwidth and thin thickness. The favorable performance could be attributed to the strong magnetic loss, dielectric loss and good impedance matching properties.
✓ 已验证
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2024
·
IF 12.7
Qiyuan Dai,Maocai Li,Xiyuan Han,Zetao Wang,Yilin Ding,Qi Feng,XiaoYing Wang,Qingtao Li,Xiaodong Cao
Postoperative bone regeneration repair for primary or metastatic bone tumors is often impeded by the adverse effects of chemotherapy treatment. As a low-toxicity therapeutic ion, the efficacy of Zn ions in promoting anti-tumor and bone regeneration outcomes has been demonstrated. However, the potential benefits are limited due to inadequate zinc intake in malignant cells and its anti-tumor mechanism remain unclear. Overcoming these difficulties, we report a new strategy for improving the delivery of Zn ions and antitumor drug by fabricating chitosan (CS) cryogel microspheres to synchronize the loading of resveratrol (Res) and Zn-BG. The Zn ions released from Zn-BG were combined with Res, then transported and enriched intracellularly, inducing apoptosis of tumor cells via multiple pathways. Moreover, the Zn-BG@Res-CS cryogel microspheres exhibited antibacterial and osteogenic effects. In particular, we found that this delivery system significantly inhibited tumor development and metastasis in vivo. Our founding suggests that the combination of Zn ions with Res could enhance cell uptake of Zn ions then induce apoptosis of tumor cells selectively. This study indicates that the combination chemotherapy and biomaterial construction could be a potential therapeutic approach for postoperative regeneration of bone tumor defects.
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2018
·Vol. 6
·期 21
·9922-9929
·
IF 9.931
Yang Chen,Bohan Shan,Chengyin Yang,Jiangfeng Yang,Jinping Li,Bin Mu
Two environmentally friendly and efficient synthesis methods, NH3-assisted synthesis and solvent-evaporated conversion, have been developed for the synthesis of a series of M(NA)2 (M = Zn, Co, Cu, Cd; NA = nicotinate) flexible MOFs. The two-dimensional M(NA)2 (M = Zn, Co) and three-dimensional M(NA)2 (M = Cu, Cd) materials exhibit peculiar structural transformation. These frameworks can be obtained from dehydration of M(NA)2(H2O)4 (M = Zn, Co, Cu, Cd) which are zero-dimensional supramolecular structures. Interestingly, the structural transformation of M(NA)2 (M = Zn, Co, Cd) is reversible after liquid water adsorption. Due to the flexible structure of these MOFs, they exhibit abnormal NH3 adsorption properties. The two-dimensional Zn(NA)2 shows a gate-opening behavior for NH3 adsorption. Its layers opened at a pressure of 0.22 bar in the first cycle, resulting in a two-step NH3 uptake with a capacity of 10.2 mmol g−1 at 1 bar. The gate-opening pressure shifted to a lower value with cycles. Co(NA)2 has a huge NH3 uptake of 17.5 mmol g−1, which is top-ranking among the reported values. For the NH3 adsorption over Cu(NA)2 and Cd(NA)2, the adsorption rates increase and adsorption equilibrium is achieved faster after three cycles. Their maximum capacity at 1 bar is 13.4 and 6 mmol g−1, respectively. More importantly, all MOFs can be regenerated under vacuum and heating conditions of 150 °C for 70 min, and they all retained the capacity. The advantages of environmentally friendly synthesis, large adsorption capacity, and regenerable properties indicate that M(NA)2 (M = Zn, Co, Cu) are promising candidates for NH3 adsorption.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）