CARBON
·
2022
·
IF 11.307
Zhuohan Chen,Xiaojing Su,Wenjian Wu,Jiale Zhou,Tao Wu,Yunhui Wu,Huali Xie,Kunquan Li
Recently, the membrane separation materials show promising applications in the fields of crude oil removal because of their low energy consumption and less secondary pollution. However, the membrane separation materials suffer problem of low separation efficiency due to the high viscosity of crude oil. Here, a superhydrophobic material with Joule heat and photothermal effect was prepared by decorating the delignified wood with reduced graphene oxide (GSH) and vinyl terminated polydimethylsiloxane (V-PDMS) through thiol-ene click reaction. The prepared PDMS@GSH wood exhibited stable superhydrophobicity with a water contact angle of 156°. Meanwhile, the GSH layer provided promising electrothermal effect that endowed the PDMS@GSH wood with excellent crude oil/water separation capability under the Joule heat with a surface temperature of 139 °C and separation rate of 1.78 × 10 5 kg m −3 h −1 . Besides, the PDMS@GSH wood displayed a good photothermal effect that assisted with the Joule heat to heat the wood for crude oil removal to save energy. More importantly, the PDMS was crosslinked with GSH on the wood via thiol-ene click reaction, leading to the stable superhydrophobicity and electrical conductivity in strong acid or alkali environment. This material has broad application prospects in crude oil clean-up due to its high separation speed and easy large-scale production.
✓ 已验证
产品关联
DOI
高影响因子
MACROMOLECULAR MATERIALS AND ENGINEERING
·
2022
·Vol. 307
·期 12
·2200494
·
IF 4.402
Shuoqi Wu,Pan Xu,Shan Wang,Desheng Qi,Le Wang,Lingcheng Meng,Shuyuan Ge,Xigui Yue
The preparation of the electromagnetic wave (EMW) absorbing materials with 3D porous structural, light weight, and high mechanical strength has been receiving greater attention for a long time. A series of light-weight polyetheretherketone/graphite/FeCo ternary heterogeneous composite foams (PEEK/C/FeCo) with high mechanical strength are prepared via thermally induced phase separation. Based on the high compressive strength of PEEK resin and its stable skeleton formed by thermally induced phase separation, the composite foam has high compressive strength and low density. In addition, during the thermally induced phase separation process, porous structures are formed inside the PEEK, and graphite and FeCo particles are uniformly dispersed between the pore structures, the composite foams possess excellent porous structure, moderate dielectric loss, and magnetic loss, exhibiting good absorbing properties. With the low density of 0.49 g cm −3 and high compressive strength of 6.40 MPa, the as-synthesized optimal sample (PEEK-50/C-40/FeCo-10) achieves a minimum reflection loss up to −35.9 dB covering a bandwidth of 3.6 GHz for a thickness of 1.5 mm. In a word, this study provides a novel, economical, and efficient way to obtain a light foam with high mechanical strength and good EMW absorbing property.
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
·
2022
·
IF 6.206
Lisheng Zhou,Pengbo Zhang,Liming Shen,Liangyong Chu,Jian Wu,Yujie Ding,Beijie Zhong,Xiaoyan Zhang,Ningzhong Bao
Waterborne epoxy (WEP) resin is drawing increasing attention due to its environmentally friendly nature. However, its application has been greatly hindered by poor corrosion resistance due to its rich inherent defects. In this work, maleic acid diamine (C 4 H 6 N 2 O 2 , MAD) modified graphene oxide (M-GO) was designed as the filler, and GO/WEP composite coatings with a high cross-linking degree, improved hydrophobicity , and high barrier properties were prepared. M-GO had a good water dispersibility and high affinity to the resin. The chemical grafting between the amino group of MAD and WEP can improve the degree of chemical cross-linking inside the coating to form a compact structure. Electrochemical impedance spectroscopy (EIS) measurements and salt spray test results indicate that the M-GO/WEP composite coating with 0.3 wt% M-GO has the best anti-corrosion performance. After being immersed in 3.5 wt% NaCl solution for 96 h, the |Z| 0.01Hz value of M-GO/WEP composite coating is 1.03 × 10 8 Ω•cm 2 , corrosion current density is 0.00040 ɥA/cm 2 and the protection efficiency reaches 99.99 %.
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2022
·
IF 7.305
Bochao Yang,Ting Zhang,Jianjun Wang,Jie Lv,Yi Zheng,Yu Zhang,Yi Wang
To develop novel materials with active photothermal conversion and latent heat storage properties, the shape-stabilized phase change material was fabricated via self-assembly method employing stearic acid (SA) as heat storage medium, graphene oxide and MXene as hybrid matrix (GM) and photothermal conversion agent. The morphology, structure, properties and phase transition behavior were investigated by various techniques. The results shown that SA/GM has sandwich-like structure and SA is confined between matrix nanosheets in multiple crystallographic forms. Due to the superposition of host-guest interaction and intrinsic van der Waals force between nanosheets , the primary melting temperature of SA/GM climbs 27.7 °C approximately than that of SA, as well as the total latent heat decreases by 28.55%–30.85% compared with theoretical values. The confinement effect increases the crystallization activation energy of confined SA, and leads to the formation of non-phase transition layer, transitional confinement layer and proximate bulk layer. However, the above observations are applicable to fatty acids/GM, only the suppressed latent heat occurs in all GM-matrix composites. In addition, the SA/GM7 has excellent photothermal conversion efficiency, as high as 93.34%, and gradient latent heat storage capacity, 45.96 J g −1 at 74.43 °C and 91.19 J g −1 at 92.37 °C.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED ELECTROCHEMISTRY
·
2022
·Vol. 52
·期 11
·1617-1628
·
IF 2.925
Chen Jinyang,Huang Xiaozhou,Ye Ruihong,Huang Dihui,Wang Yanjun,Chen Sheng
A series of conductive metal–organic frameworks (M-CATs) were synthesized using 2,3,6,7,10,11-hexahydroxytriphenylas a ligand following a solvothermal method, and the Cu-CAT system exhibiting the best performance was identified. Conductive Cu-CAT-anchored reduction graphene oxide composites (Cu-CAT@rGO) were prepared following a hydrothermal method. The microstructures of the systems were further characterized using X-ray diffraction, scanning electron microscopy, energy dispersion spectroscopy, and transmission electron microscopy techniques. The drip-casting membrane method was used for the fabrication of a novel electrochemical sensor based on the conductive Cu-CAT-anchored rGO (Cu-CAT@rGO/GCE). The electrochemical performance of Cu-CAT@rGO/GCE was studied using electrochemical impedance spectroscopy and cyclic voltammetry techniques. The differential pulse voltamme try technique was used for electrochemical sensing to detect the content of bisphenol A (BPA) in beverage bottles. An excellent linear detection range (0.05–100 µmol L −1 ) and a low detection limit (4.9 nmol L − 1 ; based on S/N = 3) were recorded. Therefore, this method can potentially be used to develop a new route for the detection of BPA. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2021
·
IF 6.064
Duraisami Dhamodharan,Veeman Dhinakaran,Radhika Nagavaram,Pradnya Prabhakar Ghoderao,Hun-Soo Byun,Lixin Wu
Waterborne epoxy (WEP) resins are of great significance as multifunctional properties recently. Nevertheless, their curing process, which involves the formation of numerous micro-pores via water evaporation, has limited applications in the industrial utilizations. In this work, we have synthesized and enhanced the water-dispersible Zirconium phosphate decorated graphene oxide (ZrP@GO) nanocomposites through a one-step preparation method of graphene oxide (GO) sheets decorated with ZrP nanoparticles, and the as-prepared ZrP@GO nanocomposites were introduced as nanofillers for WEP system in order to enhance its multifunctional properties. The as-prepared GO, ZrP, and ZrP@GO hybrids were scrutinized by XRD, XPS, Raman, TGA, and its morphology study were investigated with the assistance of AFM, TEM, and FESEM. The anticorrosive properties were analyzed using natural salt spray tests (NSS). The ZrP@GO mixed WEP coatings exhibit better protection towards corrosion when compared to WEP/GO and WEP/ZrP coatings. Also, the excellent mechanical and thermal properties were achieved with the incorporation of ZrP@GO hybrids with the WEP system. The better performance of ZrP@GO was achieved through enhanced dispersion, exfoliation, and the outstanding shielding effect of the smectic aligned layers of ZrP@GO hybrids. Besides, a finite element model proposed through this research to predict the tensile behaviors are good in agreement with the measured vales.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Dengke Zhao,Shunlian Ning,Xiaolong Yu,Qikai Wu,Wei Zhou,Jiacheng Dan,Yuguang Zhu,Hao Zhu,Nan Wang,Ligui Li
The exploration of efficient bifunctional electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) under alkaline conditions is an important way to promote the development of electrolytic water technology . Herein, the reduced graphene oxide-supported MoO 4 2- modified amorphous cobalt metaphosphate cubes (a-Co(PO 3 ) 2 /MoO 4 /rGO) as bifunctional OER/HER catalyst is prepared by anion exchange and phosphating, using the Prussian blue analogue (PBA) as a precursor. The resulting composite exhibits the low overpotentials (η) that of 290 and 50 mV for OER and HER in 1.0 M KOH solution at 10 mA cm −2 , respectively. The electrochemical test and density functional theory (DFT) results reveal that the MoO 4 2- -modified optimizes the adsorption/desorption energy of H* of Co(PO 3 ) 2 , thus enhance the HER activity. Benefiting from efficient HER and OER performances, an efficient and stable alkaline water electrolysis operation using a-Co(PO 3 ) 2 /MoO 4 /rGO used as bifunctional catalyst can be carried out, which can deliver a current density (j) of 20 mA cm −2 at 1.65 V cell voltage and work continuously for 24 h.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2021
·Vol. 168
·期 12
·120542
·
IF 4.316
Ke Qu,Yuqi Bai,Miao Deng
The ever-increasing need for small and lightweight power sources for use in portable or wearable electronic devices has spurred the development of supercapacitors as a promising energy storage and conversion system. In this work, a simple, facile and easy-to-practice method has been developed to employ carbon paper (CP) as the support to coat molybdenum disulfide (MoS2) and graphene oxide (GO), followed by electrodeposition of polyaniline (PANI) to render CP/MoS2-GO-PANI. The preparation parameters, such as amounts of MoS2, GO and number of aniline electropolymerization cycles, have been optimized to render CP/MoS2-GO-PANI the best capacitive performance. The as-prepared optimal CP/MoS2-GO-PANI is characterized by X-ray powder diffraction, scanning electron microscopy, energy-dispersive spectroscopy, and X-ray photoelectron spectroscopy. The supercapacitive properties of CP/MoS2-GO-PANI as an electrode have been evaluated electrochemically via cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy testing. CP/MoS2-GO-PANI delivers a specific capacitance of 255.1 F g−1 at 1.0 A g−1 and exhibits excellent rate capability under larger current densities. Moreover, a symmetrical supercapacitor is assembled and three are connected in series to power a light-emitting diode for ∼15 min, demonstrating the promising application potential of CP/MoS2-GO-PANI-based supercapacitor.
✓ 已验证
产品关联
DOI
高影响因子
COMPOSITES PART B-ENGINEERING
·
2021
·
IF 9.078
Hewei Zhao,Xiaolong Zeng,Tian Zheng,Shaojia Liu,Jie Yang,Rui Hao,Fengshi Li,Lin Guo
High capacity, ultra-fast charge/discharge rate, and long cycling life are external targets for Lithium-ion batteries (LIBs) to satisfy modern energy storage, but it is still challenging to realize them simultaneously. Here, we report a three-dimensional (3D) porous rGO@SnO 2 nanosheets aerogel (rGO@SnO 2 NSA) based on in-situ growing two-dimensional (2D) SnO 2 nanosheets on graphene oxide (GO@SnO 2 NS), subsequent controllable assembly and reduction. The 2D structure of SnO 2 can shorten the electron-transfer path, and the porous architecture of the 3D aerogel endows the aerogels with external ion-transfer channels and exceptional capacitive contribution. As a result, the LIBs using our 3D aerogels as anodes can endure ultrafast charge/discharge (10 A g −1 ) rate and exhibit ultra-long cycling life with a high energy density (512.1 mAh g −1 after 10,000 cycles). For application exploration, the LiFePO 4 /rGO@SnO 2 NSA cell also possesses excellent energy storage performance (364.5 mAh g −1 after 100 cycles). Our electrode design strategy of combining 2D active materials and 3D porous architecture provides a new path to develop next-generation rechargeable energy storage devices.
✓ 已验证
产品关联
DOI
高影响因子
PLoS One
·
2021
·Vol. 16
·期 11
·e0258508
·
IF 3.24
Sihua Peng,Aqiang Wang,Yuyang Lian,Xi Zhang,Bei Zeng,Qiulin Chen,Heming Yang,Jinlei Li,Limin Li,Jianguo Dan,Jianjun Liao,Shihao Zhou
In order to achieve rapid detection of thiamethoxam residues in mango, cowpea and water, this study modified the screen printed carbon electrode (SPCE) to make a specific molecular imprinting sensor (Thiamethoxam-MIP/Au/rGO/SPCE) for thiamethoxam. An integrated smartphone platform was also built for thiamethoxam residue analysis. The performance of the complete system was analyzed by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The system was then applied for the rapid determination of thiamethoxam residues in water, mango and cowpea samples. The results showed that the molecular sensor showed good linearity in the range 0.5–3.0 μmol/L of thiamethoxam. The detection limit of thiamethoxam was 0.5 μmol/L. Moreover, the sensor had good reproducibility and anti-interference performance. The average recovery rates of the pesticide residues in water, mango and cowpea samples were in the range of 90–110% with relative standard deviations < 5%. The rapid detection system for thiamethoxam residue constructed in this study was simple, reliable, reproducible and had strong anti-interference. It has broad application prospects in the field detection of thiamethoxam residue, and serves as a valuable reference for the further development of rapid detection technology of pesticide residues in the field of environment and food safety.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nano-Micro Letters
·
2021
·Vol. 13
·期 1
·1-14
·
IF 16.419
Shen Shen,Fu Jiajia,Yi Jia,Ma Liyun,Sheng Feifan,Li Chengyu,Wang Tingting,Ning Chuan,Wang Hongbo,Dong Kai,Wang Zhong Lin
Triboelectric nanogenerator (TENG)/carbon dots-TNs supported over three-dimensional graphene aerogel (3DGA@CDs-TNs) system was constructed.
TENG and 3DGA@CDs-TNs present excellent degradation activity toward brilliant green (88.26%, 40 min) and direct blue 5B (89.6%, 90 min).
The coupling interaction of photocatalysis and TENG leads to an enhanced removal ability.
The degradation pathways for brilliant green and direct blue 5B are proposed.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials Science & Engineering C-Materials for Biological Applications
·
2021
·
IF 7.328
Xiaohao Sun,Xiao Yu,Wei Li,Minfang Chen,Debao Liu
The development of biodegradable Zn matrix composites has been considered a promising approach to achieving enhanced mechanical properties, controllable degradation rate, good biocompatibility, and good osseointegration as orthopedic implants. However, scant literature regarding Zn matrix composites has been reported because of the great difficulty in dispersing the nano-sized bioactive reinforcements uniformly within the Zn matrix. In the present study, a novel and effective method were employed to obtain Zn matrix composites reinforced by uniformly dispersed beta-tricalcium phosphate (β-TCP) via graphene oxide (GO)-assisted hetero-agglomeration and subsequent spark plasma sintering process. A very low-content (0.04 vol%) few-layered GO was used as a coupling reagent to connect the Zn matrix and nano-sized TCP particles. In an appropriate polarity solvent, the negatively charged GO sheets could combine with both the positively charged Zn powder and TCP particles by electrostatic attraction and charge neutralization. Due to the nature of hetero-agglomeration, the flexible GO sheet could adhere to the large Zn powder and attracted a certain amount of TCP particles to form a Zn/GO/TCP sandwich structure by charge neutralization thereby forming a uniform dispersion of TCP particles within Zn matrix. After the spark plasma sintering (SPS) process, the TCP particles incorporated with very thin ZnO layers (thickness of a few dozen nanometers) formed a homogeneous and unique 3D network-like distribution in as-sintered TCP/Zn composites. A unique “snap pea”-like structure was confirmed at the grain boundary of α-Zn grains, which consisted of the TCP particles as “pea” and thin ZnO layer as “pod”. Due to the uniform dispersion of bioactive TCP particles and unique structure of the TCP incorporating grain boundary, as-sintered 3TCP/Zn matrix composites possessed yield strength (YS) of 140.8 ± 7.7 MPa, failure strain of 36.0 ± 2.8%, the moderate degradation rate of 19.1 ± 3.3 μm·y −1 and good cytocompatibility to MC3T3-E1 cells. Moreover, osteogenic differentiation activity evaluation revealed that the addition of TCP could significantly improve the expressions of the osteogenic differentiation-related gene (ALP) in MC3T3-E1 cells, thereby resulting in improved osteogenic capability. Therefore, biodegradable 3TCP/Zn matrix composites fabricated by GO-assisted hetero-agglomeration and subsequent SPS process could be a promising material as orthopedic implants.
✓ 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）