INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2023
·
IF 8.2
Bingjie Huo,Jingxue Wang,Zichen Wang,Chao Liu,Wenjing Hao,Yinglong Wang,Peizhe Cui,Jianguang Qi,Jun Gao,Jingwei Yang,Fanqing Meng
Wood is a natural material with low cost and easy recovery, which porous, layered, excellent structure and mechanical properties make it possible to apply in wastewater treatment. We have successfully grown MoS 2 on natural wood containing porous cellulose and introduced the high conductivity circuit path provided by Ni nanoparticles to construct a new piezoelectric three-dimensional wood block for the efficient degradation of tetracycline. Ni/MoS 2 /Wood exhibited excellent piezo-catalytic degradation performance, and the degradation rate of tetracycline reached 95.96 % (k = 0.0411 min −1 ) under ultrasonic vibration. After 5 cycles, the degradation rate still reached 90.20 %. In addition, Ni/MoS 2 /Wood was used as the reactor filler to degrade tetracycline through piezoelectric response triggered by hydrodynamic force, and the degradation rate reached 90.27 % after 60 min. Further, the mechanism and the possible degradation pathways of tetracycline degradation were proposed. This low-cost, recyclable and stable three-dimensional wood block piezoelectric material provides a new idea for the practical application of wastewater treatment.
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
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Mingchen Xu,Xinfa Zhu,Gaoning Fan,Xiyu Jia,Yonghui Zhang,Mengjun Wang,Hongxing Zheng,Pengyu Zhou,Chao Fan
Visible photodetectors based on two-dimensional tin disulfide (SnS2) have attracted interest for applications in optical communication, information capture, and military reconnaissance owing to their high absorption efficiency, atomic-scale thickness, and nontoxicity. However, their intrinsic bandgap limits their spectral detection range, hindering further practical applications. Herein, we introduce VIII B-nickel (Ni) with a similar ionic radius to Sn to form Ni-doped SnS2 few-layers via micromechanical exfoliation. As the Ni-doping concentration increases, the bandgap decreases from 2.14 (SnS2) to 1.95 eV (Sn0.9Ni0.1S2). Subsequently, Ni-doped SnS2-based photodetectors are fabricated and characterized. These devices exhibit an extended spectral detection range and excellent performance, with a maximum responsivity of 2009 A W–1 and high normalized detectivity of 2.47 × 1012 cm Hz1/2 W–1. Furthermore, to suppress dark current and noise, SnS2/Ni-doped SnS2 homostructures and their corresponding photodetectors are fabricated. The built-in electrical field of the homostructure effectively reduces the dark current of the homostructure photodetector to 110 nA. Consequently, the responsivity is enhanced to 3350 A W–1 and the response time is reduced to 3.5 ms, outperforming most other 2D material–based and commercial photodetectors. And Ni-SnS2 VPDs show an application potential in imaging and visible-light communication systems. Thus, this study presents an effective approach to extend the detection spectrum of SnS2-based photodetectors and pave the way for their future applications.
研究领域:
材料科学
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光电技术
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2019
·Vol. 29
·期 36
·1903840
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IF 15.621
Yun-hui Wu,Zhi-fu Deng,Ze-fei Peng,Rong-min Zheng,Shu-qi Liu,Shu-ting Xing,Jun-yun Li,De-qun Huang,Lan Liu
Low-melting liquid metal is a hugely promising material for flexible conductive patterns due to its excellent conductivity and supercompliance, especially low-cost and environmental liquid processing technology. However, the ever-present fluidity characteristic greatly limits the stable shape and reliability of prepared liquid metal conductive electronics. Herein, a novel solidification strategy of liquid GaIn alloys by Ni doping and heat treatment is first reported, which can efficiently create a solid phase in the liquid metal and provide an effective solution for practical applications. Particularly, the liquid characteristic is preserved for conveniently fabricating different flexible electronic circuits, and then the solidification is carried out on prepared conductive patterns by heat treatment. The solidification mechanism is revealed by the interface chemical reaction between Ni and GaIn, creating the solid phase of intermetallic compound (Ga 4 Ni 3 and InNi 3 ) during heat treatment. Moreover, a biphasic GaInNi can be obtained by regulating the atomic ratio of gallium, indium, and nickel. As a result, the obtained GaInNi possesses extremely low sheet resistance (15 ± 4.5 to 135 ± 2.5 mΩ sq −1 ) and the variation of Δ R/R 0 exhibits low level (0–2) when strained up to 100%, which offers a promising strategy to prepare stretchable and reliable liquid metal electronics.
研究领域:
材料科学
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电子工程
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DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2023
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IF 22.1
Wanli Liang,Mengyan Zhou,Xinyi Lin,Jinchang Xu,Pengyu Dong,Zhichen Le,Muzi Yang,Jian Chen,Fangyan Xie,Nan Wang,Yanshuo Jin,Hui Meng
Hydrogen is considered as an efficient energy alternative, and the use of offshore wind power to electrolyze seawater to produce hydrogen will become the future model. Here, nickel-doped tungsten oxide is proposed to realize hydrogen production from seawater. Ni-WO x @NF was prepared experimentally, in which Ni was doped into WO x to replace part of the W sites. There is a volcanic relationship between the amount of Ni doping and the activity of the hydrogen evolution reaction. Particularly in alkaline seawater, Ni-WO x @NF only needs an overpotential of 45.69 mV to reach a current density of 10 mA cm −2 and exhibits stability over 120 h. In addition, theoretical calculations confirmed that Ni doping can optimize the activity of hydrogen evolution reaction. This work proposes that nickel doping can enhance the hydrogen evolution reaction activity of tungsten oxide with excellent corrosion resistance, enabling it to work efficiently and stably in alkaline seawater.
研究领域:
材料科学
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能源化学
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产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2021
·
IF 9.676
Guojuan Hai,Jianfeng Huang,Liyun Cao,Koji Kajiyoshi,Long Wang,Liangliang Feng,Jun Chen
The electrochemical conversion is closely correlated with the electrocatalytic activities of the electrocatalyst. Herein, the urchin-like Ni-doped W 18 O 49 /NF with enriched active sites was prepared by solvothermal method followed by a low-temperature pyrolysis treatment was reported. Results demonstrate that the incorporation of Ni-doping triggers the lattice distortion of W 18 O 49 for the increasement of oxygen defects. Further, high-valent W 6+ are partially reduced to low-valent W 4+ , wherein the electrons originate from the oxidation process of Ni 2+ to Ni 3+ . The Ni 3+ ions show an enhanced orbital overlap with the OER reaction intermediates. The generated W 4+ ions contribute to release oxygen vacancies, eventually reorganizing Ni-doped W 18 O 49 /NF to unique electrochemical active species with a special amorphous-crystalline interface (AM/NiWO x /NiOOH/NF). Simultaneously, the reconstruction results in an optimized valence band and conduction band. Eventually, the resultant AM/NiWO x /NiOOH/NF with abundant active sites and improved oxidation/reduction capability exhibits more superior catalytic performance compared with the Ni-doped W 18 O 49 /NF counterpart. This study gives more insights in the electrochemical evolution of the tungsten-based oxide and provides effective strategies for optimizing the catalytic activity of materials with inherent hydrogen evolution reaction limitations.
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
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
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IF 9.965
Chenrui Liu,He Xiao,Yun Liu,Dejian Li,Hao He,Xiaohan Huang,Wentao Shen,Zhiyan Yan,Zhi Dang,Runliang Zhu
Improving the separation efficiency and transfer ability of photoinduced electrons/holes in pyrite (FeS 2 )-based photocatalytic materials is significant for the photoreduction of hexavalent chromium (Cr(VI)) but still remains a challenge. Herein, a novel homojunction was prepared through in-situ growth of nickel (Ni) doped FeS 2 nanoparticles on FeS 2 nanobelts (denoted as Ni-FeS 2 /FeS 2 ). Systematical characterizations revealed that Ni doped FeS 2 nanoparticles have been successfully in situ grown along the lattice of FeS 2 nanobelts . Photoreduction experiments demonstrated that the Ni-FeS 2 /FeS 2 homojunction with 2 mmol Ni doping contents (denoted as 2Ni-FeS 2 /FeS 2 ) exhibited the optimum Cr(VI) reduction efficiency among the studied catalysts. Density Functional Theory (DFT) calculated results verified that Ni doping could not only be advantageous for the formation of sulfur vacancies but also modify the band gap and band structure of FeS 2 nanoparticles . Moreover, several doping energy levels caused by Ni doping have also appeared near the Fermi level of FeS 2 nanoparticles . The migration paths of electrons and the existence of internal electric field (IEF) in homojunction were further verified by the calculation of work function . To sum up, the doping energy levels and IEF that produced by homojunction played important roles in accelerating the separation efficiency of its photogenerated carriers.
研究领域:
材料科学
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环境科学
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化学
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产品关联
DOI
PubMed
高影响因子
CHEMICAL PHYSICS LETTERS
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2023
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IF 2.8
Xiran Qin,He Ding
The development of new, efficient, and low-cost OER electrocatalysts with advanced structures is of great significance for hydrogen production by electrolysis of water. A Ni-doped ferrous oxalate nanorod electrocatalyst (Ni-FeC 2 O 4 ) was synthesized using a one-step solvothermal method, which showed an outstanding OER activity with a low overpotential of 296 mV at 10 mA cm −2 . The Ni-FeC 2 O 4 electrocatalyst exhibited excellent OER stability in the 300 mV constant potential test, which was mainly attributed to the fact that Ni doping can increase the electrochemical active surface areas and the interfacial charge transfer abilities of the FeC 2 O 4 electrocatalyst, optimize the electronic structure of the real active species ferric hydroxide, promote the formation of the decisive step *OOH of ferric hydroxide, and improve its intrinsic activity.
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
CRYSTENGCOMM
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2016
·Vol. 18
·期 10
·1847-1853
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IF 3.849
Jun-Qiang Bai,Wei Wen,Jin-Ming Wu
Because of the high specific surface area and enhanced charge migration, TiO2 with unique belt-like nanostructures finds promising applications in various fields such as photocatalysis, dye-sensitized solar cells, gas sensors, and Li-ion batteries. In the current study, a solution combustion procedure was firstly adopted to prepare a black water-proof precursor. The black precursor interacted with H2O2 at ambient temperature, achieving a precursor solution that is capable of fabricating hydrogen titanate (H2Ti2O5·H2O) nanobelt arrays on metallic Ti substrates at 60 °C. Subsequent calcination in air at 400 °C achieved arrays of ultrathin anatase TiO2 nanobelts of ca. 2–4 nm in thickness. The addition of nickel nitrate in the combustion solution achieved the Ni-doping into the resultant TiO2 nanobelts, which did not alter the nanobelt structure but significantly reduced the band gap from 3.2 eV to 2.9 eV. When compared with the commonly alkali-hydrothermal synthesized anatase TiO2 nanobelts, the present ultrathin nanobelts exhibited much improved photocatalytic activity when utilized to assist photodegradation of rhodamine B in water. The ultrathin nanobelt structure is believed to contribute to the high specific surface area, the much reduced charge migration path, and the enhanced charge transport along the longitudinal direction. The appropriate Ni-doping further enhanced the photocatalytic performance, because of the increased light harvesting efficiency and reduced charge recombination.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
·
IF 9.7
Chenyu Song,Jishuang Yang,Shuangting Ren,Shree Kesavan Kannan,Shanhu Liu,Ruimin Xing
Due to the limited active sites and poor conductivity, the application of tungsten disulfide (WS 2 ) in alkaline water electrolysis remains a challenge. Herein, Ni-WS 2 nanosheet arrays were in situ grown on the carbon fiber paper (Ni-WS 2 /CFP) as an electrocatalyst for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline media, and the introduction degree of Ni can be regulated by adjusting the electrodeposition time. When the electrodeposition time is 3 min, Ni ions are doped into the lattice of WS 2 , and by prolonging the electrodeposition time to 10 min, the nickel disulfide (NiS 2 ) crystal phase is generated to form NiS 2 @WS 2 heterojunction. The optimized Ni-WS 2 /CFP-10 min catalyst requires the overpotentials of 65 mV for HER and 251 mV for OER to achieve the current density of 10 mA cm −2 . A two-electrode water electrolysis device employing the Ni-WS 2 /CFP-10 min electrocatalyst requires a cell voltage of 1.63 V at the current density of 10 mA cm −2 . This work provides a new perspective for enhancing the electrocatalytic performance of WS 2 -based electrocatalysts by introducing heteroatoms and constructing heterojunction.
研究领域:
材料科学
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电化学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Rui Jiang,Bowen Deng,Huijun Liu,Wen Lei,Liu Pi,Liangyou Hu,Xuhui Mao,Xinyu Li,Yaxu Wen,Dihua Wang
A facile synthesis process that facilitates the industrial-scale production of catalysts is the prerequisite of the hydrogen evolution reaction (HER) industry. Molybdenum-based catalysts are ideal alternatives for precious-metal-based HER materials; however, they remain challenging in scale-up preparation due to the costly and complex Mo sources. Herein, we propose a molten salt paired electrolysis approach to synthesize transition-metal-doped Mo2C catalysts directly from molybdenite (mainly consisting of micrometer-scale MoS2 bulks), an earth-abundant natural Mo ore. Unlike Fe-doped Mo2C in which those transition metal dopants are inclined to diffuse into inner planes of Mo2C, this unique synthesis approach leverages the differences in transition metal diffusion energy barriers, ultimately leading to the development of Ni-doped Mo2C catalytic materials with specific Ni-enriched interfaces. Owing to the unique design and structures of the catalyst, the interfacially Ni-enriched Ni-doped Mo2C exhibited promising HER performance and long-term stability. Very interestingly, MoS2 nanoflakes, as side products, can be collected at the anode side while interfacially Ni-enriched Mo2C was concurrently obtained at the cathode side during the electrolytic synthesis process. This work not only deepens our knowledge on constructing active-site-enriched interfaces that are beneficial to HER but also gives clues to upcycling raw materials.
研究领域:
材料科学
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电化学
·
能源催化
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials
·
2020
·Vol. 13
·期 6
·1302
·
IF 3.057
Danning Kang,Jun Li,Yuyao Zhang
Titanium dioxide (TiO2), as a potential anode material applied for lithium-ion batteries (LIBs), is constrained due to its poor theoretical specific capacity (335 mAh·g−1) and low conductivity (10−7-10−9S·cm−1). When compared to TiO2, NiO with a higher theoretical specific capacity (718 mAh·g−1) is regarded as an alternative dopant for improving the specific capacity of TiO2. The present investigations usually assemble TiO2and NiO with a simple bilayer structure and without NiO that is immersed into the inner of TiO2, which cannot fully take advantage of NiO. Therefore, a new strategy was put forward to utilize the synergistic effect of TiO2and NiO, namely doping NiO into the inner of TiO2. NiO-TiO2was fabricated into the nanofibers with a higher specific surface area to further improve their electrochemical performance due to the transportation path being greatly shortened. NiO-TiO2nanofibers are expected to replace of the commercialized anode material (graphite). In this work, a facile one-step electrospinning method, followed by annealing, was applied to synthesize the Ni-doped TiO2nanofibers. The Ni doping content was proven to be a crucial factor affecting phase constituents, which further determined the electrochemical performance. When the Ni doping content was less than 3 wt.%, the contents of anatase and NiO were both increased, while the rutile content was decreased in the nanofibers. When the Ni doping content exceeded 3 wt.%, the opposite changes were observed. Hence, the optimum Ni doping content was determined as 3 wt.%, at which the highest weight fractions of anatase and NiO were obtained. Correspondingly, the obtained electronic conductivity of 4.92 × 10−5S⋅cm−1was also the highest, which was approximately 1.7 times that of pristine TiO2. The optimal electrochemical performance was also obtained. The initial discharge and charge specific capacity was 576 and 264 mAh·g−1at a current density of 100 mA·g−1. The capacity retention reached 48% after 100 cycles, and the coulombic efficiency was about 100%. The average discharge specific capacity was 48 mAh·g−1at a current density of 1000 mA·g−1. Approximately 65.8% of the initial discharge specific capacity was retained when the current density was recovered to 40 mA·g−1. These excellent electrochemical results revealed that Ni-doped TiO2nanofibers could be considered to be promising anode materials for LIBs.Keywords:electrospinning;Ni doping;TiO2nanofibers;phase transition;lithium ion battery
研究领域:
材料科学
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能源科学
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产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2017
·
IF 2.986
Chenjie Fu,Nan Chen,Guoping Du
Effects of Ni 2+ doping at A and B sites of BaTiO 3 ceramics on the crystal structures, microstructures, chemical bonding characteristics and dielectric and ferroelectric properties were studied. Both the A-site doped Ba 1−x Ni x TiO 3 and B-site doped BaTi 1−x Ni x O 3 ceramics ( x = 0, 0.01, 0.03, 0.05, 0.08 and 0.10) were prepared using the solid state reaction method at 1300 °C. For Ni 2+ doping at A sites, no change in the crystal structure of Ba 1−x Ni x TiO 3 was observed. The Ba 1−x Ni x TiO 3 ceramics remained to be of tetragonal structure, but their tetragonality consistently decreased with x . For Ni 2+ doping at B sites, a change in the crystal structure from tetragonal to hexagonal was observed for the BaTi 1−x Ni x O 3 ceramics. The hexagonal structure started to appear when x = 0.03, and BaTi 1−x Ni x O 3 ceramics completely transformed from tetragonal to hexagonal structure when x =0.08. Ni 2+ doping introduced more oxygen vacancies to Ba 1−x Ni x TiO 3 and BaTi 1−x Ni x O 3 , and the latter had higher concentration of oxygen vacancies. It was found that Ni 2+ doping, either at A or B sites, strongly decreased their dielectric and ferroelectric properties. The Ba 1−x Ni x TiO 3 ceramics remained to be ferroelectric for x up to 0.10, although it was weak, while the BaTi 1−x Ni x O 3 ceramics became paraelectric when x = 0.03. The Ba 1−x Ni x TiO 3 ceramics exhibited higher dielectric constant than the BaTi 1−x Ni x O 3 .
研究领域:
材料科学
·
物理学
✓ 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）