ACS Applied Nano Materials
·
2022
·
IF 6.14
Binglin Guo,Yihao Gao,Yongyue Li,Xin Sun,Shuailin Chen,Meicheng Li
Ni(OH)2 has low production cost and high theoretical specific capacity, while on account of the poor electronic conductivity, it shows inferior electrochemical performance including cycling stability and rate capability. This work focuses on a composite material that is in situ grown Ni(OH)2 nanosheets on reduced graphene oxide (rGO), and employing the fewer-defect rGO to build a three-dimensional conductive network provides outstanding conductivity. The specific capacitances (Cm) of the Ni(OH)2/rGO (NHG) electrode are 2776 F·g–1 at 2 A·g–1 and even 1570 F·g–1 at 50 A·g–1, demonstrating remarkable rate capability. It indicates that the combination of the nano grown Ni(OH)2 and rGO conductive substrate shortens the ion diffusion path and increases the electron transfer rate; hence, the composite rate capability has been significantly improved. The composite materials and active carbon were combined to be an asymmetric supercapacitor, which had a high energy density of 39.24 Wh·kg–1 at 1962 W·kg–1. After 10,000 cycles at 5 A·g–1, the capacity retains 91.4%.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
·
IF 9.229
Yanfei Xin,Xin Dai,Guangjun Lv,Xuedong Wei,Sai Li,Zhiqiang Li,Tong Xue,Ming Shi,Kunyang Zou,Yuanzhen Chen,Yongning Liu
α-Ni(OH)2 is an ideal candidate material for a supercapacitor except for its low conductivity and poor stability. In this work, BO2–-intercalated α-NixCo(1–x)(OH)2 is synthesized by a hydrothermal method at a low cost. The Co dopant can decrease the charge-transfer resistance and enhance the cyclic stability. The special unsaturated electronic state of BO2– enhances the bonding with metal ions and attracts water molecules. Thus, the BO2– ions support the hydroxide layers as pillars and create efficient paths for proton transportation, optimizing the utilization of α-Ni(OH)2. The three-dimensional (3D) flowerlike morphology supplies an enormous number of active sites, and r-GO is added to improve the conductivity. As a result, the modified α-Ni(OH)2 exhibits the specific capacitance of 2179, 1592, and 1423 F·g–1 at 1, 20, and 40 A·g–1, respectively, showing improved rate performance. Matching with the commercial activated carbon (AC) as an anode, the asymmetric capacitor delivers an energy density of 40.66 W·h·kg–1 when its power density is 187.06 W·kg–1. Meanwhile, it retains 81.5% capacitance of the initial cycle at 5 A·g–1 after 3000 cycles. With conductivity enhanced and structure stabilized, the modified α-Ni(OH)2 confronts broader fields of application.
✓ 已验证
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2017
·
IF 4.798
Siqi Liu,Xiezhen Zhou,Weiqing Han,Jiansheng Li,Xiuyun Sun,Jinyou Shen,Lianjun Wang
Flutriafol is one of the widely used triazole fungicides in global pesticides market, and its degradation mechanisms are important to develop powerful technologies to remove it. Insight into the kinetics and mechanisms of · OH-mediated mineralization of flutriafol have been obtained using quantum chemical calculation and electrochemical experiment methods. The complete · OH-mediated degradation pathway of flutriafol was proposed by density functional theory (DFT) simulation and the potential energy surface was mapped out for possible reactions. On the basis of DFT calculations, the optimal · OH-mediated mineralization mechanism of flutriafol was revealed, and a series of intermediates were observed accumulated in the degradation process, most significance among which were (2-fluorophenyl) (4-fluorophenyl)-Methanone, phenol , dihydroxybenzenes, benzoquinones , muconic acids , maleic acids , oxalic acids and formic acid . To give deeper insight into the · OH-mediated reaction mechanism, the electrostatic potential (ESP) and average local ionization energy (ALIE) analysis were conducted for o-benzoquinone and p-benzoquinone. The proposed mechanism was further validated by electrochemical experiments at TiO 2 -NTs/SnO 2 -Sb/PbO 2 anode. The main intermediates were identified and quantified by experimental method, indicating that the proposed · OH-mediated degradation mechanism derived from DFT calculations was feasible. These detailed findings could be instrumental for a comprehensive understanding of the · OH-mediated mineralization mechanism of flutriafol and the similar contaminants.
✓ 已验证
DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2014
·Vol. 161
·期 10
·B201
·
IF 2.859
Yang Fan,Zijuan Yang,Xinhua Cao,Peifang Liu,Sen Chen,Zhen Cao
Hierarchical macro-mesoporous Ni(OH)2 were prepared by hydrothermal treatment of Ni(NO3)2 with dicyandiamide. This Ni(OH)2 nanostructure can be transformed to mesoporous NiO via calcination at 300°C. The structure, morphology and textural properties of the as-synthesized Ni(OH)2 and NiO were characterized. The electrochemical property and electrochemical sensing performance toward glucose detection were investigated. Owing to the unique macro-mesoporous structure, the Ni(OH)2 nanostructure could provide amperometric sensing of glucose with wide linear range (0.01–8.3 mM), high sensitivity of 243 μA mM cm−2 and low detection limit of 1 μM. Moreover, this glucose sensor also exhibited excellent stability, good selectivity and reproducibility.
✓ 已验证
DOI
高影响因子
MICROCHIMICA ACTA
·
2024
·Vol. 191
·期 7
·1-11
·
IF 5.3
Zhao Zhihua,Yao Longqi,Zhang Shuaiwen,Shi Qingsheng,Rahmatullah Abu Bakker Md,Wu Lan
Industrialization and agricultural demand have both improved human life and led to environmental contamination. Especially the discharge of a lot of poisonous and harmful gases, including ammonia, ammonia pollution has become a pressing problem. High concentrations of ammonia can pose significant threats to both the environment and human health. Therefore, accurate monitoring and detection of ammonia gas are crucial. To address this challenge, we have developed an ammonia gas sensor using In(OH) 3 /Ti 3 C 2 T x nanocomposites through an in-situ electrostatic self-assembly process. This sensor was thoroughly characterized using advanced techniques like XRD, XPS, BET, and TEM. In our tests, the I/M-2 sensor exhibited remarkable performance, achieving a 16.8% response to 100 ppm NH 3 at room temperature, which is a 3.5-fold improvement over the pure Ti 3 C 2 T x MXene sensor. Moreover, it provides swift response time (20 s), high response to low NH 3 concentrations (≤ 10 ppm), and excellent long-term stability (30 days). These exceptional characteristics indicate the immense potential of our In(OH) 3 /Ti 3 C 2 T x gas sensor in ammonia detection. Graphical Abstract
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Catalysts
·
2025
·Vol. 15
·期 9
·886
·
IF 4
Qianran Feng,Xiaoting Yu,Jinlian Peng,Siying Du,Liuyun Chen,Xinyuan Xu,Tongming Su
Sustainable production of hydrogen is currently a global research hotspot. In this study, a Ni(OH)2cocatalyst was loaded on Zn0.8Cd0.2S to form Ni(OH)2/ZCS composites and achieve highly efficient photocatalytic hydrogen production. After Ni(OH)2loading, a close contact interface was established between Ni(OH)2and Zn0.8Cd0.2S, which increased the separation efficiency of the photogenerated electrons and holes. Moreover, the addition of Ni(OH)2increases the specific surface area and light absorption of Ni(OH)2/Zn0.8Cd0.2S, and the Ni(OH)2can act as active sites for photocatalytic hydrogen production. The photocatalytic H2production rate of Ni(OH)2/ZCS composites increases with the increase in the Ni amount. 9Ni(OH)2/ZCS exhibited the optimum H2production rate of 12.88 mmol h−1g−1, which was 9.9 times higher than that of Zn0.8Cd0.2S. When the amount of Ni(OH)2is further increased, the excess Ni(OH)2covers the active site of Zn0.8Cd0.2S and reduced the light absorption of Zn0.8Cd0.2S, resulting in a decrease in the H2production rate. Furthermore, the H2production rate of 9Ni(OH)2/ZCS decreased from 12.88 to 5.15 mmol g−1h−1after 3 cycles. The main reason for the decline in the photocatalytic performance of Ni(OH)2/ZCS is the photocorrosion of Zn0.8Cd0.2S. This study provides an innovative design for loading Ni(OH)2cocatalysts on Zn0.8Cd0.2S to improve the performance of photocatalysts.
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2025
·
IF 2.6
Wei Jia,Qi He,Zhiqiang Guo,Xiang Wu
It is very important to rationally design electrode materials with remarkable electrical conductivity and high specific surface area for supercapacitors. However, it is limited by insufficient energy density, so the development of high-performance electrodes has become research focuses. Herein, we report the synthesis of CoMoO4@Ni(OH)2 composite structures by hydrothermal growth of Ni(OH)2 nanosheets on CoMoO4 materials. The synthesized product achieves 93% of capacitance retention after 10,000 times cycling and possesses a specific capacitance of 2640 F g-1 at 1 A g-1. Furthermore, the assembled device delivers an energy density of 74.25 Wh kg-1 when the power density is 2700 W kg-1. Besides, the materials still present outstanding flexibility and mechanical stability after bending at different angles and times.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 34
·13632-13638
·
IF 5.7
Wenjing Tan,Xuefan Wang,Ruqing Wei,Hongbo Huang,Daqing Yang,Ying Wang,Bingbing Zhang
Nonlinear optical (NLO) crystals are crucial components in all-solid-state lasers because they expand the wavelengths of existing laser sources through laser frequency conversion. In this work, Ag2[TeO2(OH)4] was identified in tellurates using the first-principles high-throughput screening pipeline for NLO materials (FHSP-NLO). The material was successfully produced via mild aqueous solution synthesis conditions, and a single crystal of 8 × 4 × 4 mm3 in size was obtained. Ag2[TeO2(OH)4] is one of the few materials that contains the [TeO2(OH)4]2− anionic group and belongs to the non-centrosymmetric (NCS) space group. Ag2[TeO2(OH)4] exhibited balanced comprehensive performances, including a large second harmonic generation (SHG) response of about 0.84 × AgGaS2 (AGS), moderate band gap (2.73 eV) and large birefringence (0.106@1064 nm). First-principles studies revealed that the dominant units that contribute to the crystal's linear and nonlinear optical properties are Ag atoms and TeO2(OH)4 groups.
✓ 已验证
DOI
高影响因子
Sustainable Energy & Fuels
·
2020
·Vol. 4
·期 4
·1780-1788
·
IF 5.503
Jing Wang,Jing Li,Meiri Wang,Yuanyuan Liu,Hongtao Cui
Battery-type electrode materials such as Ni(OH)2 applied in Faraday supercapacitors could present a low cycling stability due to the microstructure damage of materials, originating from their cyclic volume swelling and shrinking. It is well established that the structural stability of materials is crucial for their cycling stability. However, the lack of knowledge about the structural relevance of materials to their cycling stability somehow results in a chaotic understanding on the material design. In this study, we try to reveal the structural relevance by comparing an orderly built nanostructure with a randomly packed nanostructure using Ni(OH)2 as the target material. It is found that the branched nanosheet-interlaced nanostructure of Ni(OH)2 has its self-supportive function in favor of its structural stability, thus promoting its cycling stability. Also, the orderly nanostructured Ni(OH)2 presents high electrochemical performance due to the reduced interfacial charge-transfer resistance and Warburg resistance.
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Chaoyu Liu,Ying Li,Yushi Ding,Xiaocong Zhu,Shiyu Yuan,Yongtao Huang,Chuanbo Hu
To address the challenge of insufficient long-term protective performance in waterborne epoxy coatings (WEP) due to curing defects, this study successfully synthesized a ternary nanocomposite filler, BTA@OH-BN/PANI (BTP), through a chemical oxidation polymerization process. Hydroxylated hexagonal boron nitride (OH-BN) was employed as a functional scaffold, onto which the corrosion inhibitor benzotriazole (BTA) was loaded via a solution impregnation method. Camphorsulfonic acid-doped polyaniline (CSA-PANI) was then coated onto the surface using in situ polymerization. FT-IR, XPS, and FE-SEM characterization confirmed strong interfacial coupling between the components and the successful formation of the core-shell structure. Electrochemical impedance spectroscopy (EIS) results revealed that the BTP filler significantly improves coating performance through a multidimensional synergistic effect, including physical shielding, active repair, and interfacial passivation. At the scratch defect site, due to the responsive release of BTA and the passivation induced by PANI, the charge transfer resistance ( R ct ) increased from an initial value of 13,200 Ω·cm 2 to 25,600 Ω·cm 2 within 24 h, demonstrating significant active impedance recovery. After a 90-day immersion in a 3.5% NaCl solution, the BTP-WEP substrate retained its bright metallic lustre. This study provides a solid theoretical and experimental foundation for the development of high-performance, synergistic active, and environmentally friendly marine anti-corrosion coatings.
✓ 已验证
产品关联
DOI
高影响因子
WATER RESEARCH
·
2026
·
IF 12.8
Yechen An,Xiaoxu Gao,Jing-Long Han,Yuting Ning,Xinping Fu,Ruiyun Ren,Liang Mei,Wenli Jiang,Ruifeng Yan,Jun Cui,Yu Tao,Aijie Wang
Recovering valuable organic compounds from high-salinity organic wastewater is essential for sustainable chemical manufacturing. However, conventional polymeric membranes suffer from insufficient organic/inorganic selectivity, poor solvent resistance, and severe membrane fouling during practical applications. Herein, we developed a hydroxylated carbon nanotube (CNT-OH)-modulated graphene oxide (GO) membrane to address these challenges. By precisely regulating the inner diameter and hydroxyl content of CNT-OH, rapid transport channels for water molecules and hydrated ions were constructed, which simultaneously suppressed interlayer swelling and enhanced the rejection of organic compounds. The optimized GO/single-walled hydroxylated carbon nanotubes (SWCNT-OH) membrane achieved water permeability of 28.7 l m −2 h −1 bar −1 and separation factor above 15 for negatively charged dyes, antibiotics, and per- and polyfluoroalkyl substances (PFASs) relative to inorganic salts (NaCl), outperforming commercial nanofiltration (NF) membranes by one order of magnitude. During one-month continuous treatment of real erythromycin (ERY) fermentation broth, the membrane showed only a 7.1% flux decline and maintained 99.9% ERY rejection. Compared with conventional ultrafiltration-nanofiltration (UF-NF) processes, the system reduced operating costs by 66.4% and CO 2 emissions by 76.8%, demonstrating pronounced economic and environmental advantages. Overall, the system demonstrates outstanding application potential, strong scalability and engineering feasibility.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Bailin Chen,Yansheng Jiang,Hangwei Jia,Shuai An,Xueling Hou,Shilie Pan
Birefringent crystals, as core materials for polarization modulation, hold significant importance for the advancement of laser polarizing technology, high-precision instruments, and other optical communication fields today. However, balancing the deep ultraviolet (DUV) cutoff edge and birefringence remains a demanding challenge. Borophosphates have emerged as a promising research direction for optoelectronic functional materials, but the small birefringence of most borophosphates limits their applications. Here, a novel mixed-coordinated hydroxyborophosphate, NH4B3PO6(OH)3, has been successfully designed and obtained. This compound belongs to the triclinic space group P1 (No. 2), exhibiting pronounced birefringence (the experimental refractive index difference value is 0.057 at 546 nm) and a short DUV cutoff edge below 200 nm. These properties indicate that NH4B3PO6(OH)3 exhibits excellent potential as a DUV birefringent material.
✓ 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）