MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Ying-ying Hu,Caiyue Gao,Xiao-qin Wu
Environmental pollution is a hot topic of concern for countries around the world. Therefore, {[Ni(NDC)(phen)(H 2 O)]• n ( Ni-1 , NDC = 2,6-naphthalenedicarboxylic acid, phen = o-phenanthroline), a 1D Ni-MOF, was synthesized using the solvothermal method as an electrochemical-fluorescence dual sensor for detecting phenylenediamine isomers. By the difference in the position of the reduction peaks, it is possible to distinguish between isomers while detecting them. The electrochemical behavior of the Ni-1 /GCE sensing phenylenediamine isomers was analyzed by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The LODs of o-PDA, m-PDA and p-PDA were 2.567 μM, 1.984 μM and 0.4003 μM in the detection range of 5–50 μM, respectively. Ni-1 was highly stable in aqueous solution (H 2 O), so it was dissolved in H 2 O to fabricate the Ni-1 /H 2 O fluorescence sensor. Ni-1 /H 2 O exhibited Stern-Volmer quenching constants of 6.080 × 10 4 M −1 , 2.086 × 10 3 M −1 , and 6.417 × 10 3 M −1 for o-PDA, m-PDA, and p-PDA, respectively. In addition, this dual sensor still shown excellent immunity to interference under the organic interferents. This work provides an efficient, convenient, and sensitive dual sensing method for the detection and differentiation of phenylenediamine isomers, which is of great significance for the detection of aromatic amines in the fields of wastewater discharge, environmental protection, and food safety.
研究领域:
环境科学
·
材料科学
·
分析化学
·
电化学
·
荧光传感
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2020
·
IF 5.778
Rajendran Ramachandran,Thangavel Sakthivel,Minzhang Li,Haiquan Shan,Zong-Xiang Xu,Fei Wang
Nickel-based metal-organic framework (Ni-MOF) was employed as a sacrificial template for the preparation of nickel-cobalt layered double hydroxide (NiCo-LDH) under different hydrolysis time. The template etching rate varied at different hydrolysis time, resulting in variations of the structural and morphology of NiCo-LDHs. The NiCo-LDH/10 sample showed a large specific surface area and the well-oriented larger dimension of thinner sheets due to the sufficient in-situ etching of the Ni-MOF template. The NiCo-LDH/10 was an excellent heterogeneous catalyst to activate peroxymonosulfate (PMS) for highly efficient Reactive Red-120 dye degradation. The results exhibited that the degradation efficiency of the NiCo-LDH/10-PMS catalyst was 89% for RR-120 dye within 10 min in the presence of the PMS system, which is higher than other NiCo-LDHs. Moreover, the other influencing factors such as PMS concentration, catalyst dosage, initial pH were also investigated towards degradation. The radical quenching measurement proved that the sulfate (SO 4 •− ) and hydroxyl (OH • ) had been indicated as the primary radicals. Besides, the NiCo-LDH/10-PMS catalyst showed excellent reusability even after five consecutive cycles (83.6% of the degradation efficiency). This work offer insight study on the construction of controlled morphology NiCo-LDH heterogeneous structure for high-efficiency PMS activation .
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2021
·
IF 5.165
Hao-Jing Ding,Ying Zhang,Xi Wang,Qiu-Ying Lin,Shu-Ming Zhang,Mei-Hui Yu,Ze Chang,Xian-He Bu
The construction and modulation of hierarchical pore structure in metal-organic frameworks (MOFs) has become a hot topic owing to the advantages of hierarchical pore MOFs (HP-MOFs) in matter storage and mass transfer related applications. Herein, we report the engineering of crystalline defect in a bimetallic MOF for the construction and tuning of HP-MOF. A microporous MOF system showing metal-center-dependent water stability, namely, {[M3F(bdc)3 tpt] (solvents)}n (M = Zn2+ and Ni2+, H2bdc = 1,4-benzenedicarboxylic acid, tpt = 2,4,6-tris(4-pyridyl)triazine), was utilized as a platform for the construction of HP-MOF. By tuning the Zn2+/Ni2+ ratio in the reactant, a bimetallic MOF with a highly tunable Zn2+/Ni2+ ratio could be obtained. The relatively labile Zn2+-based coordination bonding in the bimetallic MOF could be readily and targeted broken through water treatment for the engineering of crystalline defects-based hierarchical pore structure. The resultant HP-MOF reveals a dramatically increased pore volume with the presence of mesopore and macropore. In addition, the anionic framework of HP-MOF could be utilized for the selective adsorption of a cationic dye methylene blue, and a relatively high capacity (250 mg·g–1, five times compared with the pristine microporous MOF) could be achieved.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2019
·
IF 5.383
Cheng Cheng,Jiangtao Xu,Wei Gao,Shouxiang Jiang,Ronghui Guo
Metal-organic frameworks (MOFs) show promise and potential in energy storage but have limited applications due to their poor conductivity. In this work, a flexible fabric electrode is constructed with a sphere-flake-sphere structure formed by a nick-metal-framework (Ni-MOF) and reduced graphene oxide (RGO). The sphere-flake-sphere structure improves the conductivity and enhances the electrochemical performance of flexible RGO/Ni-MOF/metallic fabric electrodes (RNMEs). The areal capacitance of the RNME samples can reach 260 mF/cm 2 at a current density of 4 mA/cm 2 . The areal capacitance of RNME samples shows a good cycle stability after undergoing 2000 charging/discharging cycles. The all-solid-state asymmetric fabric supercapacitor (AAFSC) based on this hybrid and PPy fabric electrode shows excellent electrochemical energy-storage performance, with an areal capacitance of 95 mF/cm 2 , a power density of 3.07 mW/cm 2 , and an energy density of 7.72 μWh/cm 2 . The areal capacitance of AAFSC can keep over 70% of original areal capacitance after 1500 charging/discharging cycles. This flexible AAFSC shows a promise and potential for wearable textile electronics.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
SYNTHETIC METALS
·
2023
·
IF 4.4
Xinbo Zhao,Mingyu Bei,Fubin Liu,Fan Bu,Xiaohui Jiang,Liangmin Yu
Porous and layered structures can enhance interfacial polarization, and hierarchical porous composites have high dielectric loss, which can improve electromagnetic wave (EMW) absorption performance, but challenges remain. In this paper, flower-like Ni/C nanocomposites with different morphologies were obtained by adjusting the amount of solvent and heat treatment after the Ar atmosphere. The results show that Ni metals lead to magnetic loss and carbon nanotubes lead to conduction loss, and electromagnetic synergy promote enhance interfacial polarization. Moreover, the large specific surface area and hierarchical porous increase the propagation path of electromagnetic waves, resulting in scattering and multiple reflection of the EMW. Therefore, a minimum reflection loss of − 42.8 dB corresponding to an absorption bandwidth of 5.7 GHz was achieved for the Ni/C nanocomposites. This work shows that the MOF-based Ni/C composites can provide a great idea for the design and manufacture of wave-absorbing materials.
研究领域:
材料科学
·
电磁学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Bo Ran,Ping Hu,Jun Sun,Jialu Fang,Yan Li,Qihua Sun,Zhizhong Zhang,Zhaofeng Wu,Haiming Duan
This study presents a N 2 H 4 sensing material based on a Ni-MOF@BC heterostructure fabricated via a solvothermal route. The composite shows room-temperature sensing properties with a broad linear detection range and low detection limit. The performance mechanism is governed by a synergistic effect that combines the conductive network of BC for accelerated charge transfer, the catalytic activity of Ni-MOF, a built-in electric field for efficient charge separation, and hierarchically porous channels for enhanced gas permeation. A key structural feature, ligand competition-induced lattice distortion forming η -NiO 6 octahedra, is identified as crucial for the high selectivity toward N 2 H 4 . This unique distortion optimizes the adsorption energy and facilitates orbital hybridization between the sensor and N 2 H 4 molecules, leading to a stronger and more specific interaction. Furthermore, the material features intelligent humidity-responsive mode-switching, enabling dual-purpose detection across varying ambient conditions. By utilizing Lyocell-derived carbon, this work exemplifies a sustainable design strategy for multifunctional sensing materials, offering a promising route toward low-power, adaptive gas monitoring technologies.
研究领域:
材料科学
·
气体传感技术
·
金属有机框架材料（MOFs）
·
环境监测
·
可持续材料
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2022
·
IF 7.139
Haiguang Gao,Rui Shi,Yuting Shao,Yana Liu,Yunfeng Zhu,Jiguang Zhang,Liquan Li
Herein, a novel flower-like Ni MOF with good thermostability is introduced into MgH 2 for the first time, and which demonstrates excellent catalytic activity on improving hydrogen storage performance of MgH 2 . The peak dehydrogenation temperature of MgH 2 -5 wt.% Ni MOF is 78 °C lower than that of pure MgH 2 . Besides, MgH 2 -5 wt.% Ni MOF shows faster de/hydrogenation kinetics, releasing 6.4 wt% hydrogen at 300 °C within 600 s and restoring about 5.7 wt% hydrogen at 150 °C after dehydrogenation. The apparent activation energy for de/hydrogenation reactions are calculated to be 107.8 and 42.8 kJ/mol H 2 respectively, which are much lower than that of MgH 2 doped with other MOFs. In addition, the catalytic mechanism of flower-like Ni MOF is investigated in depth, through XRD , XPS and TEM methods. The high catalytic activity of flower-like Ni MOF can be attributed to the combining effect of in-situ generated Mg 2 Ni/Mg 2 NiH 4 , MgO nanoparticles , amorphous C and remaining layered Ni MOF. This research extends the knowledge of elaborating efficient catalysts via MOFs in hydrogen storage materials.
研究领域:
材料科学
·
能源化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Duo Zhang,Ying-Nan Dou,Rui Gao,Xian-Fa Zhang,Hui Zhao,Xiao-Li Cheng,Shan Gao,Ying-Ming Xu,Li-Hua Huo
Rapid, highly sensitive detection of mustard gas is a critical requirement in public safety and national defense. However, achieving highly sensitive, ppb-level detection of mustard gas under low-power conditions remains a significant challenge. Focusing on the typical blister agent simulant 2-chloroethyl ethyl sulfide (2-CEES), a solvothermal method was employed combined with controlled thermal treatment to fabricate an ultrathin porous NiFe 2 O 4 /NiO nanosheets heterostructure sensor derived from an Fe-Ni-MOF in-situ grown on a ceramic tube in this study. This material possesses uniformly distributed intimate heterogeneous interface, a high specific surface area (95.8 m 2 ·g −1 ), and abundant surface active sites, thereby significantly enhancing its adsorption and catalytic oxidation capability toward 2-CEES. At a low operating temperature of 130 °C, the sensor demonstrates a high response of 41.5 toward 10 ppm 2-CEES, a rapid recovery capability of only 84 s, and a low detection limit of 20 ppb, along with excellent selectivity, humidity resistance, reproducibility, and long-term stability. Through systematic characterization including XPS, in-situ DRIFTS, TPD, and DFT calculations, the multi-step catalytic oxidation pathway of 2-CEES on the composite surface is elucidated, along with the mechanism by which the heterostructure enhances gas-sensing performance via band structure modulation, interfacial charge transfer, and the built-in electric field. This study offers both new materials and novel insights for the development of low-power, highly sensitive sensors for trace detection of chemical warfare agents.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2024
·
IF 8.1
Qianwei Chen,Fan Liu,Wenqian Liu,Ruilin He,Jieyu Zhang,Yangyang Tan,Wei Sun,Shu-Juan Bao
Hydrogen energy has garnered significant attention due to its high calorific value and minimal environmental impact. However, the high-current electrolysis of water encounters challenges such as insufficient active sites and the disruptive effects from rapidly generated bubbles. In this paper, a small amount of water was introduced to modify the strong coordination ability of metal ions with organic ligands, and prepared 2D Ni MOFs. Subsequently, thin carbon-armed Ni-based catalysts (Ni@TC NPs) were prepared through nickel-assisted low-temperature pyrolysis. Unlike other 3D MOFs, the 2D MOF thin sheets prepared in this work can decompose at low temperatures due to its thin thickness, and the exposed Ni will accelerate the carbonization of surrounding organic groups, resulting in the formation of smaller and uniformly distributed thin carbon-armored Ni@TC NPs at lower temperature. Serving as a Hydrogen Evolution Reaction (HER) electrocatalyst, Ni@TC NPs demonstrate exceptional electrocatalytic performance (low overpotential of 36.6 mV at 10 mA cm −2 , and low Tafel slope of 91.06 mV dec −1 ), and long-term stability (over 50 h at 440 mA cm −2 ). The electronic modulation between the thin carbon armor and the metal center endows Ni@TC NPs with excellent kinetic performance, while the carbon armor provides protection in alkaline environments. In addition, the small and dense bubbles that quickly escape greatly reduce the bubble shielding and oscillation effects on the electrode surface, enabling Ni@TC NPs to work stably under high currents.
研究领域:
材料科学
·
电化学
·
能源转换与储存
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2022
·
IF 4.598
Lina Lv,Baozhong Zhang,Panpan Tian,Lingling Xie,Wenhao Wei,Jintao He,Min Lin,Huina Zhu,Hanyu Chen,Baoshan He
In this project, we developed an electrochemical aptamer sensor based on the coordinated catalysis toward thionine (Thi) of nickel metal-organic framework (Ni-MOF) and gold nanoparticles (AuNPs) to sensitively detect the enrofloxacin (ENR), which belonged to a third-generation quinolone antibiotic for treat diseases caused by bacteria. In order to improve the analytical performance of the sensor, Ni-MOF and gold AuNPs, as the substrate material, could increase the load of the aptamer (Apt) and synergistically catalyze thionine (Thi). Therefore, ultrathin sheets of gold triangular nanosheets (AuTNSs) were prepared as signal labeling materials, which were loaded with a large amount of Thi and complementary deoxyribonucleic acid (cDNA). With the help with Ni-MOF and AuNPs catalysis toward Thi, under optimal conditions, the aptasensor exhibited a massive detection range of 1×10 −2 pg·mL −1 to 1×10 3 pg·mL −1 (S/N = 3) and a detection limit of 5.6×10 −3 pg·mL −1 for ENR. Meanwhile, the proposed sensor has a high sensitivity, satisfactory repeatability and long-time stability, and could be well applied to the detection of food samples.
研究领域:
分析化学
·
纳米技术
·
生物化学
·
食品安全
✓ 已验证
产品关联
DOI
高影响因子
Asia-Pacific Journal of Chemical Engineering
·
2022
·Vol. 17
·期 2
·e2739
·
IF 1.777
Yuan Wang,Shanshan Liu,Qirui Guo,Yidong Zhang
Conversion of biomass-derived furfural platform compound to value-added tetrahydrofurfuryl alcohol (THFL) molecule is a sustainable route, and an efficient nonnoble metallic catalyst is a key factor for this reaction. In this work, Ni@C@CNT composite as a highly effective catalyst for hydrogenation of furfural to tetrahydrofurfuryl alcohol was synthesized by one-step pyrolysis of Ni-centered metal organic framework (Ni-MOF) doping with carbon nanotube (CNT). For comparison, Ni@C catalyst derived directly from Ni-MOF was also synthesized. The characterization results show that the doping of CNT promotes high dispersion of active sites and formation of Ni 3 C phase which has Pt-like catalytic activity. Therefore, the obtained Ni@C@CNT exhibited excellent activity in furfural hydrogenation (99.1% furfural conversion and 94.7% THFL yield at 120°C, 4 h, 4-MPa initial hydrogen pressure). Ni@C@CNT also shows good stability in reuse test. Current work presents a facile method for preparation of nonnoble metallic catalysts with high efficiency.
研究领域:
化学工程
·
催化材料
✓ 已验证
DOI
高影响因子
LANGMUIR
·
2024
·
IF 3.7
Pai Peng,Jie Ren,Shuxiang Wang,Jing Huang,Li Zou,Pingping Yang,Xiangui Pang,Ming Zhang,Youyi Su,Wanqi Luo,Wenyan Tao,Jiale Xie
The severe photocorrosion of cadmium sulfide (CdS) restricts its practical application for solar hydrogen production. Although remarkable progress has been achieved with an overlayer strategy for isolating the CdS surface, the lifetime of CdS-based photoanodes is still far from the actual requirements. Herein, a hybrid overlayer of defective Ni-MOF and NiO nanoparticles has been developed through the chemical bath deposition method with postannealing. This hybrid overlayer of Ni-MOF-d is coated on the surface of the TiO2/CdS type-II heterojunction. The composite photoanode exhibits a photocurrent density of 4.41 mA cm–2 at 1.23 VRHE, which is 3.47- and 1.32-fold that of CdS and TiO2/CdS, respectively. The Ni-MOF-d overlayer gives rise to a negative shift of the onset potential by 59.51 mV. After a long-term stability test of 11 h, a photocurrent retention of 70% is observed, which is among the most robust CdS-based photoanodes. The kinetics studies reveal that the performance improvements can be attributed to the multiple functions of the Ni-MOF-d hybrid overlayer, including isolating the CdS surface from the electrolyte, cocatalyzing the electrode oxidation processes, passivating the surface defect states of CdS, and facilitating the charge injection from the photoanode to the electrolyte.
研究领域:
材料科学
·
光催化
·
可再生能源
·
纳米材料
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）