CHEMISTRY LETTERS
·
2020
·Vol. 50
·期 2
·386-388
·
IF 1.361
Wan Hongri,Ju Xinzhe,He Tiantian,Shen Xiran,Yu Haoren,Lu Yunlong,Li Jiangnan,Chen Teng
A superhydrophobic bilayer surface was created with a contact angle (CA) of 157.3 ± 1° and sliding angle (SA) of 2° ± 0.5° using a simple one-step solvothermal process. The bionic micro/nano structures are similar to the flower of a carnation and common sowthistle, which plays an important role in resisting corrosion. In addition, potentiodynamic polarization shows that the superhydrophobic bilayer surface has excellent corrosion resistance. This preparation is beneficial as it is simple to fabricate, low cost, is easily prepared across large areas, and has excellent corrosion resistance, amongst other benefits. It can effectively broaden the application of magnesium alloys and extend to other conductive metal materials.
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高影响因子
CHEMISTRY LETTERS
·
2020
·Vol. 49
·期 6
·705-708
·
IF 1.361
Guan Hongtai,Ke Qiang,Lv Chao,Zeng Ning,Hu Cun,Wang Shuang,Ge Xingbo,Cai Jinguang
This study reports a facile strategy to prepare IrOx nanoparticle films on FTO substrates through simple spin-coating, annealing, and plasma treatment, which act as efficient electrocatalysts towards oxygen evolution reaction (OER). Typical amorphous IrOx nanoparticle film obtained by annealing at 300 °C and air-plasma treatment exhibits excellent OER performance in acidic electrolyte with a low overpotential of 290 mV at 10 mA cm−2, a Tafel slope of 55.4 mV dec−1, and an ultrahigh mass activity of 993 A g−1 at 1.55 V, which is among the best compared to the results reported in the literature.
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CHEMISTRY LETTERS
·
2022
·Vol. 51
·期 8
·844-847
·
IF 1.715
Sun Kaixin,Xu Fan,Liu Jingji,Zhang Yajun,Fan Yiqiang
This study proposed a method for the rapid fabrication of paper-based microfluidic devices with a stencil film, which has wide application potential in analytical chemistry. Compared with the conventional approaches, the wax transfer and wax reflow was conducted simultaneously, resulting in a shorter fabrication duration (about 15 s per device) and ultra-low fabrication cost. For the demonstration of the proposed method, a quantitative analysis of amino acid content in tea was also conducted.
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CHEMISTRY LETTERS
·
2022
·Vol. 51
·期 4
·395-398
·
IF 1.715
Zhu Yue,Li Yue,Zhao Shipeng,Jing Ran,Zhang Heqian,Sun Daolai,Sato Satoshi
Hydrogenation of γ-valerolactone (GVL) to form 1,4-pentanediol (1,4-PDO) was performed over Co/ZrO2 catalysts with a Co metal loading of 15 wt. %. The calcination of Co/ZrO2 at high temperatures significantly promoted the catalytic activity irrespective of the decrease in the specific surface area. The 750 °C-calcined Co/ZrO2 with Co2+ species exhibited a high catalytic performance: a GVL conversion of 86.1% with a 1,4-PDO selectivity of 97.2% was achieved at 165 °C under 5 MPa H2 pressure.
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CHEMISTRY LETTERS
·
2019
·Vol. 48
·期 12
·1462-1464
·
IF 1.485
Sun Tuan-Wei,Zhu Ying-Jie
The aim of this study is to develop a simple method to grow an ultralong hydroxyapatite nanowire coating on a substrate. The ultralong hydroxyapatite nanowire coating on a glass substrate was synthesized by a one-step calcium oleate precursor solvothermal method. The formation process of the nanowire coating on the glass substrate was investigated, and the morphology, crystal phase and apatite-forming ability were studied. Moreover, the as-prepared hydroxyapatite nanowire coating exhibited excellent apatite-forming ability in simulated body fluid. The as-prepared ultralong hydroxyapatite nanowire coating has great potential for various biomedical applications.
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CHEMISTRY LETTERS
·
2011
·Vol. 40
·期 5
·544-545
·
IF 1.401
Xiao Yan,Li Yan,Zhang Meng,Wang Feng-Xia,Pan Ge-Bo
Copper–phthalocyanine (CuPc) nanorods were prepared on a Si substrate by a solvent evaporation method. The results of XRD indicate that the CuPc nanorods were β-phase single crystals and grown along the [010] direction. The diameters of CuPc nanorods depend on the solution concentration, and the formation of CuPc nanorods is insensitive to the solvents and substrates. This implies that the growth of CuPc nanorods is dominated by the intrinsic π–π stacking between Pc rings. In addition, a p–n junction was formed between CuPc nanorod and Si substrate.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Bo Feng,Yaxuan Jing,Xiaohui Liu,Yong Guo,Yanqin Wang
The upcycling of waste polyvinyl chloride (PVC) is a grand challenge because of the unmanageable Cl species. Here, we develop a Cl-transfer strategy to upcycle waste PVC into value-added organic chlorides and PE-like polymer with various Cl acceptors (tetrahydrofuran, dibutyl ether and butanol) over Ru/Al 2 O 3 catalyst. The high utilization efficiency of Cl (> 80 %) can be obtained over Ru/Al 2 O 3 at 180 °C, 2Mpa H 2 with tetrahydrofuran as an acceptor within tens of hours. The excellent performance is attributed to key features including Al 2 O 3 for the C-O bond activation and metal Ru for C-Cl bond activation and H 2 dissociation. The remaining PE-like polymer after removing Cl could be regarded as PE-like feedstock and further converted into methane through the same Ru/Al 2 O 3 catalyst. The Cl-transfer system also enables the upcycling of several common PVC-contained wastes and works well in the scale-up test. This work offers a catalytic path to integrate waste PVC plastic into the supply chain of organic chlorides under the context of circular economy.
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高影响因子
Journal of Materials Chemistry A
·
2021
·Vol. 10
·期 11
·6007-6015
·
IF 12.732
Min Li,Minmin Wang,Dongyuan Liu,Yuan Pan,Shoujie Liu,Kaian Sun,Yanju Chen,Houyu Zhu,Wenyue Guo,Yanpeng Li,Zhiming Cui,Bin Liu,Yunqi Liu,Chenguang Liu
Single-atom catalysts (SACs) regulated by heteroatoms have displayed great potential as electrocatalysts for highly efficient hydrogen evolution reaction (HER); however, the controllable synthesis of an axial coordination structure of SACs to achieve robust HER performance remains a great challenge. Herein, we have proposed a doping-adsorption-pyrolysis strategy to construct NiN4–Cl active sites with axial Cl coordination for accelerating electrocatalytic HER. The obtained NiN4–Cl SAs/NC catalyst exhibits superior HER activity with low over-potential, small Tafel slope, high turnover frequency, and long-term stability. Density functional theory calculation reveals that the excellent HER performance of NiN4–Cl SAs/NC originates from the axial Cl-coordination-induced electronic localization enhancement, which is beneficial for the adsorption and activation of H* intermediate, thus accelerating the HER process. This work opens a new opportunity for rational design and construction of high-performance SAC catalysts by axial coordination strategy for electrocatalytic application.
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DOI
高影响因子
CRYSTAL GROWTH & DESIGN
·
2025
·
IF 3.4
Ze-Jiang Xu,Hua-Kai Li,Mei-Ling Ren,Liang-Han Shen,Xiang Zhang,Zi-Ao Qiu,Chao Shi,Li-De Yu,Na Wang,Heng-Yun Ye,Le-Ping Miao
Long-range order of electric dipoles means important physical properties such as ferroelectricity or antiferroelectricity, making materials have broad applications in information storage, sensors, switches, and optical electric devices. However, the orientation control of electric dipoles remains a great challenge on a molecular/ion level. Herein, we report the realization of ferroelectric order via Cl–Cl halogen-bond interactions in hybrid double perovskite [CH2ClN(CH3)3]2NaRuCl6 (TCNRC) derived from [(CH3)4N]2NaRuCl6 (TNRC) for the first time. TCNRC shows spontaneous polarization (Ps = 2.67 μC cm–2) and piezoelectricity (d33 = 4 pC N1–) with a Curie temperature (Tc) of 320 K. This study reveals the important role of halogen-bonding interactions to form ferroelectric orders and provides new insights into the molecular level regulatory polarity in molecular ferroelectric systems.
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高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Li Zhang,Xinxin Li,Ye Tian,Bin Hao,Jiufang Han,Hong Chen,Bingsuo Zou,Chunhua Du
Inorganic perovskites have received much attention due to their stability and high performance in luminescence, photoelectric conversion, and photodetection. However, perovskite optoelectronic devices prepared by the solution technique are still suffering from time-consuming and complex operations. In this paper, a single-crystal perovskite-based photodetector (PD) is prepared by very fast one-step deposition of synthesizing microplatelets (MPs) on the electrode directly. The saturated precursor is carefully optimized by adding appropriate antisolvent chlorobenzene (CB) to fabricate the MPs with their PL wavelength ranging from 418 to 600 nm. Furthermore, the PDs with a low dark current on order of nanoangstroms, high responsivity and detectivity of up to 10.7 A W–1 and 1012 Jones, respectively, and an ultrafast response rate featured by 278/287 μs (rise/decay time) are achieved. These all-inorganic perovskite PDs with a simple fabricating process and tunable detection wavelength meet the evolution tendency of PDs toward low cost and high performance, which is a high-profile strategy to realize high-performance perovskite PDs.
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DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2019
·
IF 2.298
Yongmei Xuan,Xianyu Ding,Neng Gao,Yaqi Ding,Xin Meng,Guangming Chen
1-Ethyl-3-methylimidazolium chlorine ([Emim]Cl) and 1-ethyl-3-methylimidazolium bromide ([Emim]Br) as an additive to working fluid [lithium bromide aqueous solution (H2O/LiBr) and lithium chloride aqueous solution (H2O/LiCl)] of absorption cycles were proposed. The vapor pressure of H2O + LiCl + [Emim]Cl (mass ratio LiCl/[Emim]Cl = 2) in the temperature from 314.79 to 435.48 K, H2O + LiCl + [Emim]Br (mass ratio LiCl/[Emim]Br = 2) in the temperature from 317.62 to 431.27 K, and H2O + LiBr + [Emim]Cl (mass ratio LiBr/[Emim]Cl = 2) in the temperature from 303.10 to 409.91 K was measured by the boiling point method. The mass fractions of the absorbent were from 0.30 to 0.60. The experimental data were regressed using the Antoine-type equation, and the average absolute relative deviation (AARD %) between the experimental data and calculated values of three systems was 0.44, 0.51, and 0.54%. Compared with that of the previously reported ionic liquids, ([Emim]Ac) as an absorbent for LiBr + H2O, vapor pressure of these four systems follows the order LiCl + [Emim]Cl + H2O < LiCl + [Emim]Br + H2O < LiBr + [Emim]Cl + H2O < LiBr + [Emim]Ac + H2O. The proposed ternary systems have better water affinity and can be promising alternative working fluids in the absorption cooling system.
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JOURNAL OF ELECTRONIC MATERIALS
·
2016
·Vol. 46
·期 5
·2593-2598
·
IF 1.491
Zhou Zhifang,Tan Xing,Ren Guangkun,Lin Yuanhua,Nan Cewen
BiCuSeO oxyselenide has been reported as a promising thermoelectric material because of its special layered structure. Here, we attempt to synthesize n -type BiCuSeO using chlorine to substitute the Se site with the modification of (Cu 2 Se 2 ) 2− layers. Our results indicate that Cl doping can influence the electrical and thermal transport properties of BiCuSeO bulk materials. The significant reduction in electrical conductivity (from 40 S cm −1 to 10 S cm −1 ) demonstrates that Cl doping can indeed affect (Cu 2 Se 2 ) 2− conducting layers. It may be desirable to obtain n -type BiCuSeO by heavy doping of Cl or other elements.
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