JOURNAL OF ALLOYS AND COMPOUNDS
·
2021
·
IF 5.316
Yongyang Chen,Fulin Li,Xiaochun Dong,Dan Guo,Yixuan Huang,Shanping Li
Efficient and stable rGO@Ti/SnO 2 –Sb composite electrodes were prepared by the sol-gel method. The microscopic morphology , crystal structure, and electrochemical properties of the rGO@Ti/SnO 2 -Sb composite electrodes were characterized by a range of characterization techniques. The electrocatalytic oxidation activity of the electrodes was evaluated by the degradation efficiency of the fluoroquinolone antibiotic norfloxacin (NOR). Simultaneously, the effects of different experimental conditions on the degradation efficiency of NOR were also investigated, such as calcination temperatures, brushing times, initial pH, initial electrolyte concentration , etc. The enhanced electrocatalytic oxidation activity can be attributed to the excellent electron transfer efficiency, higher electrode specific surface area, and stronger adhesion of the electrode coating to the substrate. Additionally, the possible NOR degradation pathway was deduced through the main intermediates, and the mechanism of NOR degradation was discussed based on experimental and characterization results. This work provides a simple and effective method to prepare highly active composite electrodes for electrocatalytic oxidation to remove organic pollutants from water.
研究领域:
环境科学
·
电化学工程
·
材料科学
·
水处理技术
·
污染控制化学
·
纳米复合材料
·
环境功能材料
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DOI
高影响因子
Materials
·
2021
·Vol. 14
·期 11
·2836
·
IF 3.623
Jin Shao,Yi Yang,Xiaoyan Zhang,Liming Shen,Ningzhong Bao
In this study, we have successfully prepared a free-standing Si/void/rGO yolk–shell structured electrode via the electrostatic self-assembly using protonated chitosan. When graphene oxide (GO) is dispersed in water, its carboxyl and hydroxyl groups on the surface are ionized, resulting in the high electronegativity of GO. Meanwhile, chitosan monomer contains -NH2and -OH groups, forming highly electropositive protonated chitosan in acidic medium. During the electrostatic interaction between GO and chitosan, which results in a rapid coagulation phenomenon, Si/SiO2nanoparticles dispersed in GO can be uniformly encapsulated between GO sheets. The free-standing Si/void/rGO film can be obtained by freeze-drying, high-pressure compression, thermal reduction and HF etching technology. Our investigation shows that after 200 charge/discharge cycles at the current density of 200 mA·g−1, the specific discharge capacity of the free-standing electrode remains at 1129.2 mAh·g−1. When the current density is increased to 4000 mA·g−1, the electrode still has a specific capacity of 469.2 mAh·g−1, showing good rate performance. This free-standing electrode with a yolk–shell structure shows potential applications in the field of flexible lithium-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
·
纳米材料
·
柔性电子器件
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DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2020
·Vol. 46
·期 7
·5664-5676
·
IF 4.939
Shaohui Zhang,Qingxin Li,Haikun Zhou,Wei Xuan,Yili Liang,Zhiyong Xie,Feng Liu
In this paper, Pd catalysts supported on novel composite carbon supports were synthesized by the carbonization and hydrogen reduction of Pd 2+ -doped bacteria containing Ketjen EC600JD, CNT and rGO, respectively. The analysis results show that the prepared catalysts exhibit excellent ORR electrocatalytic performance in acid medium. The best ORR electrocatalytic performance was obtained for Pd/carbonized-bacteria-rGO, which exbibits a mass activity at 0.345 A mg −1 that is 9.58 times higher than commercial Pd/C, and meanwhile displays a better stability than that of Pd/C. The enhanced performance can be attributed to nitrogen doping and flexible carbon-coating microstructure. Herein, we elaborate an efficient and ecofriendly method for the synthesis of electrocatalysts used for oxygen reduction reaction.
研究领域:
材料科学
·
电化学
·
纳米技术
·
催化
·
能源材料
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DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2019
·Vol. 21
·期 1
·15
·
IF 2.009
Tian Yuan,Sun Zhenghao,Zhao Yan,Zhang Yongguang,Tan Taizhe,Yin Fuxing
Novel Sb 2 Se 3 /reduced graphene oxide (rGO) composite, 1D Sb 2 Se 3 nanorods wrapped with rGO, has been successfully synthesized by a facile spray drying method. Compared to as-prepared Sb 2 Se 3 nanorods, the obtained Sb 2 Se 3 /rGO composite, as anode for lithium-ion batteries (LIBs), exhibited super electrochemical performances. The results suggest that Sb 2 Se 3 /rGO composite can retain a reversible capacity of 394 mAh g −1 over 200 cycles at 100 mA g −1 between 0.01 and 3 V (vs Li/Li + ). Even at a high rate current density of 1000 mA g −1 , a discharge capacity of 247 mAh g −1 was computed, indicating that this LIB possesses good rate capability. This improved electrochemical performance can be attributed to the 1D nanostructure, and also to the introduction of rGO, which provided more electron transport pathways and shortened the Li-ion diffusion through the electrolyte. Consequently, the cluster of 1D Sb 2 Se 3 nanorods that are wrapped in the rGO nanostructure can efficiently buffer large volume changes and retain the structural stability during lithiation and delithiation process, resulting in an excellent electrochemical performance.
Schematic illustration of the Sb 2 Se 3 /RGO composite synthesis process
研究领域:
材料科学
·
储能
·
纳米技术
·
电化学
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2020
·
IF 4.65
Bin Tan,Shenghua Han,Wenbin Luo,Zisheng Chao,Jincheng Fan,Mingyu Wang
MoS 2 as cathode materials of aluminum ion batteries can significantly improve the specific discharge capacity in the initial cycles. However, it electrical conductivity is poor and has strong interactions with higher charge density of Al 3+ cations. So MoS 2 cathode material suffers from rapid specific capacity decaying, which prevents the further development for aluminum ion batteries. Herein, a new phase engineering strategy is demonstrated for making MoS 2 -RGO (Reduced graphene oxide) composites for boosting the performance of aluminum ion batteries. Because the structure of MoS 2 is analogous to graphene, it can be used as a novel substrate for the growth of MoS 2 , which can increase the contact area of graphene and MoS 2 with forming perfect interlayer-overlapped composites. The Al/MoS 2 -RGO battery has a specific discharge capacity of 278.1 mAh/g in the initial cycles, and still maintains 150.2 mAh/g after 100 cycles.
研究领域:
材料科学
·
电化学
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2022
·
IF 9.221
Jie Hu,Wangwang Guan,Xueqing Xiong,Yong Chen,Haizhu Long
A carbon nanomaterials-modified MOF-derived Co 3 O 4 p–p heterojunction was successfully constructed using a solution-combination-calcination method. The morphological and structural characteristics and their gas sensing performances were comprehensively investigated. Particularly, the synergistic effect between different carbon nanomaterials and Co 3 O 4 mesoporous structures was carefully studied. The gas sensing results revealed that the sensor based on the CNT-rGO-Co 3 O 4 nanocomposites exhibited better gas sensing properties toward the ethanol gas, including higher response, admirable antihumidity, and shorter response–recovery time than the other Co 3 O 4 samples. The gas sensitivity of CNT-rGO-Co 3 O 4 nanocomposites reached to be as high as 127.1, which was 5.8 times higher than that of a pure Co 3 O 4 gas sensor when exposed to 100 ppm ethanol. The enhanced gas sensing performance of the sensor fabricated by the CNT-rGO-Co 3 O 4 nanocomposites could be attributed to the promising synergistic effect between carbon nanomaterials and Co 3 O 4 nanobox, implying that the heterojunction structure and coupling effect would dramatically optimize the gas sensing reaction process, resulting in improved gas sensing performance.
研究领域:
材料科学
·
传感器技术
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DOI
高影响因子
OPTICAL MATERIALS
·
2026
·
IF 4.3
Yanqing Wang,Dongchen Guo,Zhiping Fang,Min Fan,Zhenhao Yan,Fuling Guo,Wangchao Chen,Yuan Gao,Tongqi Ye,Chengwu Shi
Antimony sulfide (Sb 2 S 3 ) is a promising absorber for photovoltaics operating under both outdoor and indoor illumination due to its suitable bandgap and excellent photostability. However, during chemical bath deposition, the unsynchronized hydrolysis and sulfidation of Sb 3+ species induce excessive homogeneous nucleation, leading to amorphous particles and ultimately films with small grains, high grain boundary density, and low crystallinity. To address this issue, an rGO-regulated deposition strategy is developed. The oxygen-containing functional groups on rGO can interact with Sb 3+ species through coordination and electrostatic interactions, thereby modulating their local availability and reaction kinetics. This suppresses homogeneous nucleation and promotes substrate-guided growth, yielding Sb 2 S 3 films with [ hk 1] preferred orientation, enlarged grains, reduced defects, and improved carrier transport. As a result, the photovoltaic device with rGO-regulated achieves a PCE of 7.61% under AM 1.5G illumination (compared to 7.15% for the conventional CBD device) and 17.64% under 3000 K, 1000 lux warm white LED illumination. This work highlights Sb 2 S 3 as a versatile absorber for outdoor–indoor photovoltaics and provides a pathway for regulating solution-phase crystallization.
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DOI
高影响因子
MATERIALS LETTERS
·
2026
·
IF 2.6
Xianjie Liu,Sijun Huang,Zhongzhi Yang,Jing Zhang,Qiuquan Zhang
Goose eggshell membrane (GESM) was taken as a flexible base material, residual egg white taken as a binder, and rGO taken as the thermo-sensitive component. Therefore, a high-sensitivity flexible temperature sensor is constructed by a simple coating method. This sensor displays an excellent flexibility. Its tensile strength is got an enhancement of 13.4% when compared with original GESM. This device gives a high temperature coefficient of resistance ( TCR ) which is −1.09%/°C, good linear property ( R 2 = 0.985), and a quick response time of 6–10 s. This sensor can keep its steady working condition after ten cold-heat change circles (25 and 46 °C), and it also can do this under repeated bendings with many different angles. This sensor holds significant potential for temperature monitoring applications.
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产品关联
DOI
高影响因子
ACS ES&T Engineering
·
2026
·
IF 6.3
Shen Xiaotie,Li Ruiyi,Chen Baoliang,Zhu Xiaoying
The degradation of perfluorooctanoic acid (PFOA) remained
challenging
due to the extraordinary stability of its carbon–fluorine bonds,
which were resistant to conventional photocatalytic processes. In
this work, a metal–organic framework (MOF), MIL-125-NH 2 , was grown in situ on reduced graphene oxide (rGO) to form
nanocomposites (RMGs), enabling rapid PFOA degradation via an integrated
dual-redox pathway without the addition of sacrificial agents. Under
UV irradiation, the RMG composite achieved an 80.2% degradation of
PFOA (20 mg L –1 ) within 4 h, corresponding to an
apparent rate constant of 0.405 h –1 , and exhibited
competitive degradation productivity among reported photocatalytic
systems operating without external oxidants or sacrificial agents.
PFOA degradation exhibited pronounced pH dependence with the RMG composite
delivering optimal performance at pH 5. Moreover, the RMG catalyst
showed excellent stability and reusability. In natural water matrices,
the RMG composite achieved approximately 70% PFOA degradation within
10 h. The MOF/rGO heterojunction promoted directional charge separation,
enabling photogenerated holes to trigger carbon–carbon bond
cleavage and stepwise shortening of perfluorinated intermediates,
while electrons were efficiently transferred to PFOA to induce hydrogen–fluorine
atom exchange. Overall, this study highlights the pivotal role of
synergistic redox integration in enabling efficient PFOA remediation
in aqueous systems.
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产品关联
DOI
高影响因子
VACUUM
·
2026
·
IF 4.3
Xiaoqian Shi,Zhongxi Yang,Miao Liu,Peng Song
Two-dimensional layered materials are prone to interlayer stacking in gas sensing applications, leading to a reduction in specific surface area, slow gas diffusion, and inadequate response performance at room temperature. To address these issues, this study employed a combined hydrothermal reduction and freeze-drying method to prepare 3D rGO/MXene/In 2 O 3 composite aerogels, and systematically investigated their microstructure, pore structure, surface chemistry, and formaldehyde sensing behaviour at room temperature. The results indicate that this composite material possesses a continuous, interconnected three-dimensional porous network structure and a high specific surface area (282.78 m 2 /g), which effectively exposes active sites and accelerates gas transport. First-principles calculations confirm the presence of significant interfacial electronic interactions between the multiple components. Under room-temperature testing conditions, the aerogel-based sensor demonstrated a rapid response recovery time (6/8 s) and high formaldehyde response sensitivity (50 ppm, 26.9%), providing an experimental foundation and material design reference for the development of novel room-temperature rapid gas sensors.
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2026
·Vol. 37
·期 13
·978
·
IF 3.2
Li Xiongbin,Zhou Yuqiao,Tang Xiu-Zhi,Zhang Hong,Li Hengfeng
The aerospace, military stealth, and 5G communication fields have raised new requirements for multifunctional materials. In this study, a rigid MWCNT/Co@C/rGO/PMI composite foam (MCGP) was prepared using a UV light-initiated in-situ copolymerization hot air foaming method. The sandwich structure of MOF-GO-MOF, after calcination, achieved a uniform dispersion of magnetic Co particles and formed rich hetero interfaces. The 0D Co@C, 1D MWCNT, and 2D rGO formed a multi-dimensional filler system, and the magnetic-electrical synergy and isotropy bubble structure jointly optimized the impedance matching, and multiple loss mechanisms enhanced the absorbing performance. The results showed that M20C20/PMI achieved a RL value of -68.26 dB at a frequency of 8.92 GHz and a thickness of 40mm, and the EAB covered the full frequency band of 2—18 GHz. The RCS value of M25C15/PMI reached a minimum of -45.82 dB·m 2 . Notably, by carefully adjusting the proportion of fillers, the five MCGP composite foams prepared in this study all had a minimum RL value of < -55 dB, basically meeting the requirements of each absorption frequency band. In addition, the MCGP composite foams are lightweight (28.30 kg/m 3 ), have high strength (0.50 MPa), heat insulation (0.02856 W/(m·K)), and infrared stealth characteristics, making them promising as a new generation of integrated structural–functional protective materials.
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DOI
高影响因子
DIAMOND AND RELATED MATERIALS
·
2026
·
IF 5.2
Guangli Li,Rui Zhu,Gexin Liu,Zian Liu,Yafeng Zhang,Nanke Ma,Yuan Jin,Xiaoxi Zeng
An efficient electrochemical platform for determination of Gatifloxacin. • ZrMo 2 O 8 /rGO demonstrated remarkably synergistic effect toward Gatifloxacin. • Wide response range (0.1–10 μM), low LOD (0.02 μM) and good stability (10 d). • High sensitivity in the detection of Gatifloxacin in tap water and honey. Although antibiotics such as Gatifloxacin (GAT) offer therapeutic benefits, their potential adverse effects on human health necessitate the development of highly sensitive and selective detection methods. Here, we report a novel electrochemical sensor for trace GAT detection in complex matrices, fabricated by integrating bimetallic oxide zirconium molybdate (ZrMo 2 O 8 ) nanoparticles with reduced graphene oxide (rGO) nanosheets. The synergistic combination of ZrMo 2 O 8 nanoparticles, a bimetallic oxide with superior electrocatalytic activity, and rGO nanosheets, which provides an exceptionally high specific surface area and electrical conductivity, enables high-performance GAT sensing. Under optimized conditions, the ZrMo 2 O 8 /rGO modified glassy carbon electrode (ZrMo 2 O 8 /rGO/GCE) demonstrated a wide linear range (0.1–15 μM), a low limit of detection (0.02 μM) and high sensitivity (7.040 μA μM −1 ). The ZrMo 2 O 8 /rGO/GCE also exhibited excellent repeatability, reproducibility, and remarkable anti-interference capability even in the presence of excess interfering substances. Notably, the ZrMo 2 O 8 /rGO/GCE maintained comparable sensing performance in real-world samples (tap water and honey), achieving recoveries of 98.40%–105.0% and highly consistent sensitivity with PBS buffer. This work presents a cost-effective, rapid-response, and highly sensitive electrochemical platform for trace GAT detection in complex samples, with promising applications in environmental and food safety monitoring. A highly efficient electrochemical sensing platform was developed for the detection of trace Gatifloxacin residues in tap water and honey, based on bimetallic oxide ZrMo 2 O 8 nanoparticles integrated with reduced graphene oxide (rGO) nanosheets. Download: Download high-res image (102KB) Download: Download full-size image
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高影响因子
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