ACS Applied Materials & Interfaces
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2025
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IF 8.2
Xia Li,Qiuyue Chen,Guoguo Wang,Xuguang An,Jing Zhang,Qian Liu,Lisi Xie,Xiaolei Li,Weitang Yao,Qingquan Kong
Electrochemical nitrite (NO2–) is a promising technology for NO2– removal and a sustainable method for generating valuable ammonia (NH3), but this process is intricate and generates other byproducts. In this work, we propose a facile and low-cost method for the preparation of a Cu3Mo2O9 nanosheet array, which can serve as an efficient electrocatalyst for the reduction of NO2– to NH3. The morphology of Cu3Mo2O9 can be adjusted by controlling the synthesis conditions. In neutral solution, Cu3Mo2O9 achieves a high NH3 yield of 30.46 mg h–1 cm–2 and an outstanding faradaic efficiency of 98.6% with excellent long-term electrochemical stability for NO2– reduction. Density functional theory calculations further reveal the key role of the Cu3Mo2O9 (202) surface and its possible reaction pathways in the electrocatalytic reduction of nitrite.
研究领域:
材料科学
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电化学
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环境科学
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产品关联
DOI
PubMed
高影响因子
Sustainable Energy & Fuels
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2020
·Vol. 4
·期 4
·1883-1890
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IF 5.503
Chengbo Wei,Xiaoming Fan,Xue Deng,Linzheng Ma,Xiao Zhang,Qingyun Liu,Jinxue Guo
Efficiently generating hydrogen in neutral solution is essentially important for electrocatalysts toward practical application of water splitting; however, most of the catalysts show promising activity only in acidic or alkaline media. Herein, a surface modulation method is developed via doping Ru onto the surface of a Ni2P nanosheet array supported on nickel foam (Ru-Ni2P/NF) to activate the robust hydrogen evolution activity. The Ru species achieve optimized surface chemistry for catalysis, including boosted intrinsic activity, improved catalytic center density, and enhanced kinetics. The as-obtained electrode exhibits Pt-like catalytic activity, as well as good stability in both neutral and alkaline solution. Exploring efficient and wide-pH electrocatalysts by such surface chemistry modulation would be of great value for the development of advanced materials for energy conversion.
研究领域:
材料科学
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电催化
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能源转换
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产品关联
DOI
高影响因子
RSC Advances
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2017
·Vol. 7
·期 39
·24453-24461
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IF 3.108
Chaocheng Zhao,Pei Dong,Zongmei Liu,Guangrui Wu,Shuaijun Wang,Yongqiang Wang,Fang Liu
An active Fe3O4/MIL-101 hybrid material was prepared via a simple in situ solvothermal method and characterized as a heterogeneous Fenton-like catalyst for Rhodamine B (RhB) degradation. The Fe3O4/MIL-101 exhibited enhanced catalytic performance for RhB degradation in a neutral solution. Under optimized conditions, almost 100% removal of 10 mg L−1 RhB was achieved in 30 min using 0.5 g L−1 Fe3O4/MIL-101 and 20 mM H2O2 at initial pH 7. The reusability of Fe3O4/MIL-101 was also investigated after four runs. On the basis of the characterization of the catalyst, the results of metal leaching, the effects of radical scavengers, and hydroxyl radical (˙OH) determination, it was concluded that RhB is decomposed mainly by the attack of the hydroxyl radical (˙OH), generated by the reaction of Fe2+ species with H2O2. MIL-101 showed a significant synergistic effect with Fe3O4, in which it played the role of a solid-acid catalyst with Lewis acid sites on its surface, ensuring that a Fenton-like reaction occurred in the neutral solution.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
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2021
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IF 5.876
Shan Wan,Huikai Chen,Bokai Liao,Xingpeng Guo
Background This work aims at developing some environmental-friendly corrosion inhibitors for copper in neutral solution. Methods A glucose-based functionalized carbon dots (FCDs) was synthesized through a facile one-pot hydrothermal method. The inhibition performance of FCDs was firstly researched systematically on copper in neutral 3.5 wt% NaCl solution by potentiodynamic polarization curves, electrochemical impedance spectroscopy and scanning vibrating electrode technique. The above electrochemical results show that FCDs is an effective corrosion inhibitor for copper in neutral solution, and its optimal corrosion inhibition efficiency exceeds to 88% at 70 ppm. The protective performance of FCDs depends on the coverage of adsorption film on copper surface. Its adsorption isotherm is in accordance with Langmuir adsorption model, involving both physisorption and chemisorption. Atomic force-distance curve directly quantifies the adhesion force between the adsorption film and copper surface. Significant finds The adsorption and anticorrosion mechanism of FCDs in neutral solution is proposed, which could provide theoretical guidance for design and synthesis of nanomaterial corrosion inhibitor.
研究领域:
材料科学
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电化学
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防腐蚀研究
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2015
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IF 3.313
Zonghua Pu,Chun Tang,Yonglan Luo
In this paper, we demonstrate the preparation of ferric phosphide nanoparticles film supported on titanium plate (FeP/Ti) through low-temperature phosphidation of electrodeposited ferric hydroxide nanoparticles film on Ti plate. When directly used as a hydrogen evolution cathode in acidic media, the FeP/Ti shows high catalytic performance and durability with nearly 100% Faradaic efficiency. It needs overpotentials of 116 and 191 mV to afford current densities of 10 and 100 mA cm −2 , respectively, and the catalytic activity is maintained for at least 12 h at an overpotential of 150 mV. This electrode also performs well in neutral solutions.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
Nature Communications
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2025
·Vol. 16
·期 1
·1-11
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IF 15.7
Jiang Mengpei,Li Jianjun,Wan Xinyi,Qiu Jianhang,Yao Tingting,Zhang Wenyu,Ma Shangyi,Tan Hao,Han Ali,Chen Chunlin,Liu Gang
Plastic photoreforming offers a compelling technology to address the global issue of the large amount cumulative plastic waste by converting it into valuable fuels and chemical feedstocks. However, constrained by insufficient mass and energy transfers, the existing hydrophilic plastic photoreforming systems heavily rely on the unsustainable chemical pre-treatments in corrosive solutions. Herein, we demonstrate a conceptual plastic photoreforming system based on a floatable hydrophobic organic-inorganic hybrid-TiO 2 photocatalyst, which unlocks superoxide radical as the major oxidizing species and forms a four-phase interface among photocatalyst, plastic substrate, water and air, thus greatly enhancing the mass and energy transfers. Consequently, the photoreforming yield rates in neutral aqueous solutions are increased by 1–2 orders of magnitude for typical plastic including polyethylene, polypropylene, and polyvinyl chloride without applying pre-treatments, whilst producing high-value C 2 H 5 OH with a selectivity of over 40%. We believe this work reveals a feasible route to sustainable plastic photoreforming.
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
Chemosensors
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2025
·Vol. 13
·期 4
·138
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IF 3.7
Yuqi Liu,Nan Qiu,Zhihao Zhang,Yang Li,Chao Bian
In this study, an in situ electrochemical modulation method based on an ultramicro interdigitated array electrode (UIAE) sensor chip was developed for the detection of ammonia nitrogen (NH3-N) in neutral aqueous solutions. One comb of the UIAE was used as the working electrode for both the modulating and sensing functions, while the other comb was used as the counter electrode. Utilizing its enhanced mass transfer and proximity effects, the feasibility of in situ modulation of the solution environment near the UIAE chip to generate an electrochemical response for NH3-N was investigated using electrochemical methods. The proposed method enhances the concentration of hydroxide ions and active chloride in the local solution near the sensor chip. These reactive species play a key role in improving the sensor’s electrocatalytic oxidation capability toward ammonia nitrogen, facilitating the sensitive detection of ammonia nitrogen in neutral environments. A linear relationship was displayed, ranging from 0.15–2.0 mg/L (as nitrogen) with a sensitivity of 3.7936 µA·L·mg−1(0.0664 µA µM−1mm−2), which was 2.45 times that in strong alkaline conditions without modulation. Additionally, the relative standard deviation of the measurement remained below 2.9% over five days of repeated experiments, indicating excellent stability.
研究领域:
环境科学
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分析化学
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DOI
高影响因子
CHEMISTRY-A EUROPEAN JOURNAL
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2017
·Vol. 23
·期 64
·16179-16183
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IF 5.317
Zao Wang,Fengyu Xie,Zhiang Liu,Gu Du,Abdullah M. Asiri,Xuping Sun
Graphical A nickel borate nanoarray on carbon cloth (Ni−Bi/CC) behaves as an efficient catalyst electrode for H 2 O 2 electroreduction in neutral media. As a non-enzymatic electrochemical H 2 O 2 sensor, such Ni−Bi/CC shows superior sensing performances with a fast response time (less than 3 s), a low detection limit (0.85 n m , S / N =3), and a high sensitivity (18320 μA m m cm −2 ). It is highly attractive to construct natural enzyme-free nanoarray architecture as a 3D catalyst for hydrogen peroxide detection due to its great specific surface area and easy accessibility to target molecules. In this communication, we demonstrate that nickel borate nanoarray supported on carbon cloth (Ni−Bi/CC) behaves as an efficient catalyst electrode for H 2 O 2 electro-reduction in neutral media. As a non-enzymatic electrochemical H 2 O 2 sensor, such Ni−Bi/CC shows superior sensing performances with a fast response time (less than 3 s), a low detection limit (0.85 n m , S/ N =3), and a high sensitivity (18320 μA m m cm −2 ). Importantly, it also demonstrates favourable reproducibility and long-term stability.
研究领域:
材料科学
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分析化学
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电化学
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纳米技术
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 25
·2301343
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IF 19
Ping Yan,Tao Yang,Minxi Lin,Yanan Guo,Zipeng Qi,Qiquan Luo,Xin-Yao Yu
Layered metal hydroxides (LMHs) are promising catalysts for oxygen evolution reaction. However, the hydrogen evolution reaction (HER) activity of LMHs is unsatisfactory due to their poor conductivity and limited active sites. Herein, taking Ni(OH) 2 as demonstration, a novel “one stone five birds” plasma activation strategy synergistic with Ru single atoms (Ru SAs) doping is developed to boost the HER activity of Ni(OH) 2 by constructing heterostructured β-Ni(OH) 2 /Ni-Ru SAs nanosheet arrays (NSAs). Benefiting from the structural/compositional features and optimized electronic state, the as-obtained β-Ni(OH) 2 /Ni-Ru SAs NSAs exhibit splendid HER activity with a low overpotential of 16 mV at 10 mA cm −2 and a small Tafel slope of 21 mV dec −1 in alkaline solution. Excellent HER performance in alkaline seawater and neutral solutions are also demonstrated by the β-Ni(OH) 2 /Ni-Ru SAs NSAs. The plasma activation and Ru SAs doping play important roles in enhancing water adsorption and accelerating the kinetics of water dissociation. Density functional theory (DFT) calculations reveal that the introduction of Ru SAs in the system facilitates the generation of surface OH vacancies for providing more active sites as well as decreases the antibonding state density of the generated mid-gap state for enhancing H adsorption strength toward the optimal range.
研究领域:
材料科学
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电化学
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催化
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能源材料
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）