ELECTROCHIMICA ACTA
·
2020
·
IF 6.215
Tao Han,Xiaoping Yu,Yafei Guo,Mingli Li,Ji Duo,Tianlong Deng
As a unique and indispensable element in modern battery and energy industries, the recovery of lithium has attracted wide attention worldwide. In this work, the recovery of low concentration of Li + in geothermal water was carried out by a green and novel FePO 4 /K 2 NiFe(CN) 6 [FPO/KNiFC] electrochemical ion pump technique. Different K 2 MFe(CN) 6 (M = Cu, Co, or Ni) was synthesized and used to construct an electrochemical ion pump with FePO 4 . It was found that K 2 NiFe(CN) 6 has excellent electrochemical properties, and the recovery of Li + is mainly restricted by the insertion capacity and rate of the FePO 4 electrode. This problem was successfully solved by the modification of electrode using multiwalled carbon nanotube . Even though the optimized ion pump system has a low single insertion capacity for low concentrations of Li + , a cycle extraction method was developed and successfully realized high-effective recovery of Li + from geothermal water. Subsequently, a multi-stage extraction device was designed and proposed for the continuous recovery of low concentrations of Li + .
研究领域:
环境科学
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材料科学
·
能源工程
✓ 已验证
产品关联
DOI
高影响因子
STAR Protocols
·
2023
·
IF 0
Shuchao Jiang,Jikai Sun,Guoqing Ren,Weiqiao Deng
Summary CO 2 capture and utilization into liquid fuels and high-added-value chemicals has been regarded as an attractive strategy to mitigate excessive carbon emissions. Here, we present a protocol to capture and convert CO 2 into pure formic acid (HCOOH) solution and solid fertilizer (NH 4 H 2 PO 4 ). We describe steps for synthesis of an IRMOF3-derived carbon-supported PdAu heterogeneous catalyst (PdAu/CN-NH 2 ), which can efficiently catalyze (NH 4 ) 2 CO 3 -captured CO 2 into formate under ambient conditions. For complete details on the use and execution of this protocol, please refer to Jiang et al. (2023). 1
研究领域:
环境科学
·
化学工程
✓ 已验证
DOI
PubMed
Nanoscale Advances
·
2023
·Vol. 5
·期 20
·5661-5670
·
IF 4.7
Tingyu Xue,Fang Liu,Bin Lu,Qingrong Dong,Bin Zhao,Tianqing Chen,Kun Zhang,Jianguo Li,Jiangfeng Du
Radioactive cesium (Cs) is a significant concern due to its role as a major byproduct of nuclear fission and its potential for radioactive contamination. Internal contamination with radioactive Cs is characterized by immoderate production of reactive oxygen species (ROS), resulting in severe radiation damage. Therefore, the development of therapeutic strategies should focus on enhancing the excretion of radioactive Cs and reducing radiation-induced oxidative damage. However, current therapeutic drugs like Prussian blue (PB) have limited efficacy in addressing these issues. In this study, we present Cu3[Fe(CN)6]2 (CuFe) nanoparticles, a Prussian blue analog (PBA), which can not only efficiently sequester Cs but also exhibit resistance against radiation damage. The results of the adsorption studies demonstrate that CuFe outperforms PB in terms of adsorption performance. Further mechanistic investigations indicate that the increased adsorption capacity of CuFe may be attributed to the presence of additional defects resulting from the [Fe(CN)6] missing linkers. Moreover, CuFe mimics the functions of catalase (CAT) and superoxide dismutase (SOD) by effectively eliminating O2˙− and H2O2 while scavenging ˙OH, thereby mitigating ROS induced by radiative Cs. Importantly, in vivo study confirms the efficient Cs decorporation capability of CuFe. The fecal cumulative excretion rate of CuFe reaches 69.5%, which is 1.45 times higher than that of PB (48.8%). These findings demonstrate that CuFe exhibits excellent Cs removal performance and ROS scavenging ability, making it an attractive candidate for the treatment of Cs contamination.
研究领域:
药理学
·
放射医学
·
纳米医学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Han Li,HuiHui Shi,Yi Dai,HengHui You,Samuel Raj Babu Arulmani,Hongguo Zhang,Chunhua Feng,Lei Huang,Tianyu Zeng,Jia Yan,Xianjie Liu
Air cathode microbial fuel cell (AC-MFC) cannot be used on a large scale because of its low oxygen reduction reaction (ORR) efficiency. Despite the fact that bimetallic catalysts can greatly enhance the oxygen reduction rate by regulating the electronic structure of the active site, the flaws of insufficient exposure of the active site and easy metal agglomeration limit its catalytic activity. Herein, we report on the preparation of a stable heteroatomic substrate using a copper material organic framework as a precursor, covered by Fe-based active sites. As a result of dipole-dipole interactions, the reduced product Fe 2+ forms a weak Fe-O surface that is conducive to the adsorption of active substances. The presence of Fe 0 enhances the electrical conductivity of the catalytic, thus promoting ORR efficiency. Through redox coupling, the D-band center of Fe at FeCu@CN is optimized and brought close to the Fermi level to facilitate electron transfer. Notably, FeCu@CN demonstrates a superior power density of 2796.23 ± 278.58 mW m −3 , far exceeding that of Pt/C (1363.93 ± 102.56 mW m −3 ), in the application of microbial fuel cells (MFCs). Meanwhile, the MFC-loaded FeCu@CN maintains excellent stability and outstanding output voltage after 1000 h, which provides feasibility for large-scale application.
研究领域:
环境科学
·
材料科学
·
能源科学
✓ 已验证
DOI
PubMed
高影响因子
ELECTROANALYSIS
·
2025
·Vol. 37
·期 9
·e70046
·
IF 2.3
Wei Liu,Yanhua Sun,Songfeng Yin,Hao Li,Miao Yang,Pingping Huang,Zi Li,Nannan Wang,Deming Li
In this study, carbon nitride-multiwalled carbon nanotubes/ MXenes (CN-MWCNTs/Ti 3 C 2 ) nanocomposites with excellent properties were synthesized by a convenient method and characterized using various methods. By modifying the CN-MWCNTs/Ti 3 C 2 composites on glassy carbon electrode, an electrochemical sensor capable of sensitive and rapid detection of hesperidin (HPD) was established. Under the optimal conditions, the sensor showed excellent detection performance for HPD (0.1 M PBS (pH 7.0)). The linear range was 0.05–503 μM, and the detection limit (S/N = 3) was 0.017 μM. In addition, the sensor has the advantages of good immunity to interference, stability and reproducibility.
研究领域:
分析化学
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纳米生物技术
·
电化学传感
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药物分析
·
天然产物检测
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2014
·Vol. 4
·期 81
·42991-42995
·
IF 3.708
He Sun,Haobo Sun,Wei Wang,Handong Jiao,Shuqiang Jiao
Insoluble Prussian blue (IPB), Fe4[Fe(CN)6]3, is synthesized at room temperature and found to achieve a relatively high storage capacity of 146 mA h g−1 (at a 20 mA g−1 rate) as the cathode material for Na-ion batteries with high potential plateaus. XRD, SEM and TEM are employed to characterize the morphology and microstructure of the as-synthesized IPB. First-principles calculation is introduced to study the electrochemical mechanism. Generally, the environmental friendliness and low cost of the material make it possible to be used for large-scale electric storage applications.
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 ALLOYS AND COMPOUNDS
·
2017
·
IF 3.133
Hui Xiao,Xiaobing Huang,Yurong Ren,Haiyan Wang,Jianning Ding,Shibiao Zhou,Xiang Ding,Yuandao Chen
Na 3 V 2 (PO 4 ) 3 /nitrogen doped carbon (NVP/CN) composites have been fabricated by a simple and low cost solid-state technique using folic acid as the carbon-nitrogen source. The structure, morphology and electrochemical performance of NVP/CN composites coated with various carbon-nitrogen layer contents are well investigated. The results reveal that the NVP/CN composite with 3.3 wt% carbon-nitrogen exhibits the largest specific surface area, with a uniform carbon-nitrogen layer thickness of approximately 2 nm. When tested as cathode material for sodium ion battery , NVP/CN composite with 3.3 wt% carbon-nitrogen displays an outstanding high rate properties with the discharge capacity of 95 and 91 mAh g −1 at 10 and 20 C, respectively, and long cycle life up to 3000 times even at a high rate of 10 C due to the smallest charge-transfer resistance and highest Na + diffusion coefficient . The results suggest that folic acid is a promising carbon-nitrogen source for construction of NVP/CN and other cathode materials.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 30
·17653-17659
·
IF 3.119
Dingyan Xu,Qun Wan,Siyao Wu,Yu Zhao,Xinglei Xu,Liang Li,Gufeng He
Lead halide perovskites have been considered promising materials for optoelectronic applications owing to their superior properties. CsPbBr3 nanocrystals (NCs) with a narrow particle size distribution and a narrow emission spectrum are synthesized by ligand-assisted re-precipitation (LARP), a low-cost and facile process. In inverted CsPbBr3 NC LEDs, a dual hole injection layer (HIL) of 1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN)/MoO3 is introduced to enhance hole injection and transport, because HAT-CN can extract electrons easily from the hole transport layer and leave a large number of holes there. The current and power efficiencies of the optimized device with a dual HIL are 1.5- and 1.8-fold higher than those of the single HIL device. It is believed that the dual HAT-CN/MoO3 HIL effectively promotes hole injection and has promise for application in many other devices.
研究领域:
材料科学
·
光电技术
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2017
·
IF 4.798
Junnan Song,Wei Wang,Fengxia Wang,Yumao Kang,Shijia Liu,Ziqiang Lei
Designing and preparing highly efficient non-precious metal catalysts for oxygen reduction reaction (ORR) in alkaline medium still remains a big challenge. In this study, we successfully prepared a series of NdCuO x @CN catalysts via encapsulating bimetallic NdCuO x nanoparticles into nitrogen doped carbon (CN), which combines the advantages of rare-earth-transition bimetallic oxides and CN. And we obtained an optimal ORR catalyst (NdCuO x @CN-1000) by exploring the ratio of NdCuO x to aniline in the precursors and carbonization temperature. The optimal NdCuO x @CN-1000 catalyst yields comparable ORR activity to commercial Pt/C catalyst and exhibits excellent stability as well as tolerance to methanol crossover. This excellent performance is attributable to the formation of encapsulated structure and CN composite. Simultaneously, synergistic effect between different components in the catalyst also boosts the ORR performance.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Applied Materials Today
·
2024
·
IF 7.2
Guobo Huang,Siqi Huo,Jiahao Ren,Wei Chen,Haiqin Yang,Shenwei Xiao,Tianle Wang,Hong Peng,Pingan Song
The nanomaterials have been deeply explored as flame retardants for various polymeric materials due to their multifunctionality, but they often fail to significantly increase the limiting oxygen index (LOI) and vertical burning UL-94 rating, thus unable to meet industrial needs (LOI>27.0 % and UL-94 V-0 rating). Herein, we fabricated a cerium/phosphorus-doped g-C 3 N 4 (Ce/P-CN) nanohybrid as a multifunctional high-efficiency fire retardant for acrylonitrile–butadiene–styrene (ABS). The Ce/P-CN nanoflakes featured a strengthening effect towards ABS, 10 wt% of which increased the tensile strength of ABS/(Ce/P-CN) by 33.8 %. Meanwhile, the ABS/(Ce/P-CN) nanocomposites showed remarkably enhanced high-temperature stability and carbonization performances relative to virgin ABS. Ce/P-CN simultaneously improved the anti-ignition, fire retardancy and smoke suppression of ABS due to the barrier effect of g-C 3 N 4 nanoflakes and the catalytic carbonization effect of cerium and phosphorus. Notably, adding 10 wt% Ce/P-CN increased the LOI and UL-94 rating of ABS to 28.6 % and V-0, respectively, demonstrating its high flame-retardant efficiency. Thus, the high flame-retardant efficiency and multifunctionality enable Ce/P-CN to outperform previous flame retardants for ABS. This work offers a novel strategy for the development of high-efficiency g-C 3 N 4 nanoflakes, which endow ABS with improved mechanical robustness and fire retardancy and show broad industrial prospects.
研究领域:
材料科学
·
高分子化学
·
燃烧学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Guangli Yu,Ziyang Wang,Junchao Dong,Fei Ni,Dandan Song,Terence Xiaoteng Liu,Zhanhui Yuan,Kangjun Wang,Xiaoqin Zou
Membrane technology is poised to substantially lower the energy consumption involved in the separation of C 3 H 6 from C 3 H 8 . However, the quest for suitable membrane materials for this critical process remains an ongoing challenge. Herein, a novel metal–organic framework (MOF) having cyano groups, thus referring to CN-ZIF-8, has been successfully identified and developed as productive nanofillers into 6FDA-DAM polymer. Unlike ZIF-8, CN-ZIF-8 exhibits a stronger affinity for C 3 H 6 and demonstrates favorable thermodynamic selectivity for recognizing it from C 3 H 8 due to the presence of dangling cyano groups, as confirmed by gas sorption. The optimal membrane with a 15 wt% CN-ZIF-8 loading evinces improved separation performance in terms of ≥80 % increase in ideal selectivity (∼23.6) and 144 % in C 3 H 6 permeability (∼379.8 Barrer) compared to the pristine 6FDA-DAM membrane. Mixed gas separation of a 50C 3 H 6 :50C 3 H 8 delivers remarkable separation results, out-performing the current trade-off limits associated with conventional polymer membranes. The synergistic effects of high gas solubility and the unique diffusivity behavior of CN-ZIF-8 effectively discriminate C 3 H 6 from C 3 H 8 . This study offers valuable insights into the exploration and the design of MOFs intended for the industrial C 3 H 6 /C 3 H 8 separation.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Wenlan Jia,Fuping Tian,Mengjie Zhang,Xinyi Li,Sheng Ye,Yanfu Ma,Wangyin Wang,Yifu Zhang,Changgong Meng,Guang Zeng,Jian Liu
Developing low-cost non-precious metals as efficient catalysts for the reduction of toxic 4-nitrophenol (4-NP) to useful 4-aminophenol (4-AP) have received increasing attention in recent years. Herein, a novel and efficient Cu-based catalyst Cu/Cu x O@CN (carbon doped with nitrogen) was prepared via a facile method from pyrolysis of bi-ligand MOFs material Cu 2 (BDC) 2 (BPY) (BDC = p-Phthalic acid, BPY = 4,4′-bipyridyl) in Ar atmosphere. Characterization results revealed that N doping in carbon matrix favors the development of mesoporous structure, the formation of more defect sites in carbon matrix, better dispersion of Cu/Cu x O nano particles, and maintenance of Cu species in metallic Cu state (the active site), all of which contribute to a superior catalytic activity for 4-NP reduction with a pseudo-first-order rate constant as high as 0.126 s −1 (the molar ratio of NaBH 4 to 4-NP is 400), nearly 11 times higher than its counterpart Cu/Cu x O@C without N doping (0.011 s −1 ). The activation energy for 4-NP reduction to 4-AP catalyzed by Cu/Cu x O@CN was determined as 55.6 kJ mol −1 (the molar ratio of NaBH 4 to 4-NP is 100). In addition, Cu/Cu x O@CN showed excellent reusability in successive 6 cycles. The facile synthesis and superior catalytic activity make Cu/Cu x O@CN a promising catalyst in industrial applications for many other similar reaction systems.
研究领域:
材料科学
·
环境科学
·
催化化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）