ACS Applied Energy Materials
·
2023
·
IF 6.4
Yaqi Chen,Xin Fan,Xinjian Li,Shan Gao,Haidong Yu,Wenting Ji,Yuewen Zhang,Hongan Ma,Xiaopeng Jia
Thermoelectric materials, as clean energy materials, can directly convert thermal energy into electrical energy. These materials have received significant attention owing to their environmentally friendly nature. Skutterudite thermoelectric materials feature excellent electrical properties and great potential for environmentally friendly and industrial applications. The thermal performance optimization of skutterudite is mainly achieved through framework atom substitution, lattice void filling, and recombination of nano second-phase. In this study, the significant optimization of the thermal properties of S0.05Co4Sb11.6Te0.4 with fullerene-C60 as a nano second-phase composite material was reported. At 773 K, the N-type 0.10C60-S0.05Co4Sb11.6Te0.4 (0.10C60-SKD) polycrystalline material featured a dimensionless figure of merit zT value of 1.34, which is 31% higher than that of the matrix material. The overall optimization of the thermoelectric properties of the material was achieved through the high-pressure and high-temperature (HPHT) synthesis method, combined with electronegative S element filling, Te element substitution, and the recombination of C60 nano second-phase. The experimental results indicated that the incorporation of C60 resulted in the formation of finer grains in the composite material with significant lattice distortion, dislocations, and abundant grain boundaries in its microstructure. Various phonon scattering mechanisms occurred within the material, effectively reducing the lattice thermal conductivity of the material. The stable structure of C60 molecules added to the matrix material can optimize the mechanical properties of the material. The composite sample with a C60 amount of 0.20 exhibited a Vickers hardness of 7.01(1) GPa. This study employed the HPHT method for the direct synthesis of C60 composite samples within 30 min and provides insights into improving the thermoelectric properties of skutterudite.
研究领域:
材料科学
·
能源材料
✓ 已验证
产品关联
DOI
高影响因子
ORGANIC ELECTRONICS
·
2018
·
IF 3.68
Kang Chen,Tiantian Cao,Ziqi Sun,Dan Wang,Ning Chen,Yongfang Li
TiO 2 is widely used in conventional n-i-p type perovskite solar cells (Pero-SCs) as electron transporting layer (ETL). However, its drawbacks such as photocatalytic properties, low electron mobility , and a process of high temperature sintering , hindered the further improvement of device performance. In this work, a vacuum-deposited fullerene C 60 was utilized as ETL, and a easily accessible fullerene derivative, C 60 (OH) 16 fullerenol, was employed between ITO electrode and C 60 ETL to modify ITO for the first time. After introducing the C 60 (OH) 16 fullerenol layer, the Pero-SC obtained the favorable energy level alignment between ITO cathode and perovskite layer, and the device based on C 60 (OH) 16 /C 60 ETL achieved a champion PCE of 16.70%, which showed a 15.41% enhancement compared to the Pero-SC with pristine C 60 ETL (14.47%). The mechanisms of performance improvement were systemically discussed with respect to the optimized energy level, efficient charge transport and reduced interfacial resistance. This work exhibited that fullerenol C 60 (OH) 16 is a promising interfacial modification material for the n-i-p type Pero-SCs.
研究领域:
材料科学
·
能源科学
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Liang Xian,Shu Xin Liu,Jing Ma,Xiao Xia Tian,Wei Li,Zhao Min Liu
C60 has a spatial confinement effect as a carrier for Pt nanoparticles. In this paper, highly dispersed and uniformly sized ultrafine Pt nanoparticles (Pt/C60-A) were synthesized by a photoinduced method using green ascorbic acid as an auxiliary reducing agent in the presence of C60 space-confined. It was found that the morphology of Pt nanoparticles could be modulated by adjusting the wavelength of light (395 nm UV and 450 nm blue-violet, 650 nm red). Changing the concentration of the auxiliary reducing agent regulated the Pt nanoparticle loading and dispersion. In addition, an electron-rich surface is formed on the surface of Pt nanoparticles synthesized under strong metal-support interaction (SMSI). In the methanol oxidation reaction, the catalyst (Pt/C60-A3) prepared by 3 mL of 180 mM reductant, synergistically irradiated with blue-violet light (450 nm), showed catalytic activity and durability that were significantly better than those of commercial Pt/C catalysts. The catalytic performance of Pt/C60-A3 was unchanged before and after the durability test and showed high durability. In addition, Pt/C60-A3 also exhibits high catalytic activity and durability in the reduction of p-nitrophenol (4-NP), with an apparent rate constant (k) of up to 0.54 min-1, and the catalytic activity is still maintained at about 87% after seven cycles of the 4-NP reaction. This study provides a new insight and method for synthesizing and applying noble metal nanoparticles.
研究领域:
材料科学
·
催化化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2020
·
IF 8.821
Lina Hu,Shiqi Li,Longlong Zhang,Yifan Liu,Chenxi Zhang,Yukun Wu,Qinjun Sun,Yanxia Cui,Furong Zhu,Yuying Hao,YuCheng Wu
Fullerene derivatives have been proved to be useful as additives into active layer to improve perovskite solar cells (PSCs) performance in the power conversion efficiency , stability and reproducibility. In this work, to unravel the influences of chemical compositions of fullerene derivatives on the PSCs performance, we systematically compare a series of fullerene-derivatives additives, including C 60 , PCBM and C 60 -Taurine. Two important conclusions are achieved: (i) the bare C 60 cage primarily plays a role to accelerate the electron extraction and transport; (ii) the side chains adhered to the C 60 cage could further help to improve the stability of PSCs by reducing the defect states and improving the perovskite crystalline quality . It is also noteworthy that these two goals may be hard to be simultaneously achieved because the insulation property of side chains leads to the decline of electron extraction capacity. Therefore, an intelligent design of fullerene derivatives as the additives is strongly suggested to balance the stability and PCE.
研究领域:
材料科学
·
能源技术
·
化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xuan Wang,Shuo Huang,Benben Wei,Min Liu,Bo Yang,Ruoqing Liu,Hongyun Jin
All-solid-state batteries with oxide electrolytes and high-nickel layered oxide cathodes (LiNixCoyMnzO2 and LiNixCoyAlzO2, x + y + z = 1, x ≥ 60%) have received widespread attention owing to their high energy density and high safety. However, they generally suffer from interfacial structural instability when coupled with solid-state electrolytes, which strongly diminishes the longevity of the battery. In this work, we propose adding a sacrificial additive C60 to the catholyte buffer layer between Li1.4Al0.4Ti1.6(PO4)3 (LATP) and LiNi0.8Co0.1Mn0.1O2 (NCM811) to enhance the electrochemical stability under high-voltage operating conditions. A uniform and robust cathode–electrolyte interphase (CEI) film enriched with LixPOyFz, LiPxFy, and C60Fn is spontaneously formed on the surface of the cathode particles. In addition, the NCM811/Li solid-state battery delivers a discharge capacity of 150.3 mAh g–1 with a retention of 85% after 200 charge–discharge cycles at 0.5 C. This study offers a practical approach toward realizing LATP-based all-solid-state high-voltage batteries characterized by exceptional cycling stability.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SYNTHETIC METALS
·
2017
·
IF 2.435
Yuan Zhao,Xiaoliang Liu,Lu Lyu,Lin Li,Wenjun Tan,Shitan Wang,Can Wang,Dongmei Niu,Haipeng Xie,Han Huang,Yongli Gao
Modification by ultra-thin fullerene (C 60 ) insertion layer of about 1 monolayer on the electronic structure and the film growth of 2,7-diocty[1]benzothieno-[3,2-b]benzothiophene (C8-BTBT) on silicon oxide (SiO 2 ) is investigated using ultraviolet photoelectron spectroscopy (UPS), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and X-ray diffraction (XRD). It is found that the ultra-thin C 60 insertion layer doesn’t induce an ambipolar charge transport characteristic but it indeed lifts up the energy levels of C8-BTBT, resulting in p-doping and hole accumulation at the semiconductor-dielectric interface. The charge transfer from trap states residing in the band gap of C8-BTBT to the lowest unoccupied molecular orbital (LUMO) of C 60 most likely leads to a decrease of threshold voltage for corresponding organic field effect transistors (OFETs) based on such a configuration. Band bending and decrease of the ionization potential (IP) are observed in the C8-BTBT film attributed to the increasing ordering of molecular orientation with the deposition of C8-BTBT. The HOMO downward shift is clearly bigger with the C 60 insertion layer than that without. A typical Volmer-Weber (VW) growth mode is detected due to the weaker van der Waals interaction between C8-BTBT and the underlying layer of C 60 /C8-BTBT than that between the C8-BTBT molecules. Compared to without C 60 interlayer, the molecular packing is a little more disordered at low coverages, resulting in more C8-BTBT molecules to lean away from the interface normal. The C8-BTBT film in such a structure phase has the HOMO closer to the E F than that at an almost perfectly vertically standing up configuration. Our results show that the introduction of C 60 insertion layer lifts up the HOMO of C8-BTBT and improves the energy level alignment at the interface.
研究领域:
材料科学
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物理化学
·
半导体器件
✓ 已验证
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2015
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IF 2.587
Bo Jin,Juan Shen,Rufang Peng,Congdi Chen,Qingchun Zhang,Xiaoyan Wang,Shijin Chu
Dimethyl sulfoxide (DMSO) with sodium carbonate (Na2CO3) is an effective catalyst system for C60 cyclopropanation through the Bingel reaction. Various bromomalonic esters, brominated β-keto esters, brominated 1,3-diketones, and other bromo-substituted active methylene compounds can react with C60 in the presence of DMSO and Na2CO3 to achieve excellent yields of the corresponding methanofullerenes at 10 °C. Moreover, this proposed methodology has been also employed successfully to functionalize [70]fullerene, single-walled carbon nanotubes (SWNTs), and graphene. This protocol is beneficial because it involves short reaction time, high yield, and a simple procedure. Additionally, this method does not need a strong base, such as sodium hydride and 1,8-diazabicyclo[5,4,0]undec-7-ene, because inexpensive Na2CO3 can be the catalyst.
研究领域:
有机化学
·
纳米材料化学
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碳材料科学
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功能化修饰
·
催化化学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2017
·Vol. 7
·期 46
·29184-29192
·
IF 3.108
Ting Song,Piyong Zhang,Jian Zeng,Tingting Wang,Atif Ali,Heping Zeng
C60/Fe2O3 nanocomposites are successfully prepared, well characterized, and employed in visible-light-driven photocatalytic H2 production. The Fe2O3 polymorphs show obvious broad-spectrum absorption, even close to the near infrared region (780–900 nm). The H2 production rates of β-Fe2O3 and γ-Fe2O3 are almost 2.1 times and 3.1 times higher than α-Fe2O3 (which itself is close to that of g-C3N4). This demonstrates that carefully controlling the polymorphs can tune the photocatalysts' H2 production properties. After modifying the Fe2O3 polymorphs with C60, the sample with 0.5 wt% C60/β-Fe2O3 has the optimum photocatalytic activity. This result indicates that the strength of the interaction and interfacial contact between C60 and Fe2O3 polymorphs plays an important role in the enhancement of photocatalytic activity, which can improve the transmission efficiency of photogenerated electrons via a conjugated three-dimensional π system. Fluorescein is introduced as a photosensitizer and the optimum mass ratio of fluorescein + 0.5C60/β-Fe2O3 is 1 : 1, which significantly boosts the photocatalytic H2 evolution rate of 0.5C60/β-Fe2O3 from 321.8 to 1665.0 μmol g−1 h−1. Meanwhile, the composites exhibit high stability and reusability.
研究领域:
材料科学
·
光催化化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Gaofeng Chen,Zhiwei Wang,Na Guo,Lei Liu,Huina Zhu,Qun Wang,Tingzhou Lei
Alcohols, being a substantial category of hydrogen storage liquid fuels, exhibit promising development potential. Alcohol-based hydrogen storage liquid fuels can be efficiently produced from biomass-derived syngas (CO and H2). Considerable efforts have been made in the conversion of syngas to alcohols through a higher alcohol synthesis (HAS) reaction. However, inevitably, there will be significant generation of H2O and C1 byproducts (CO2 and CH4). In this study, a hydrophobic CoCuSNT@C60 catalyst modified with fullerene (C60, an all-carbon cage molecule) was designed to hinder the formation of H2O and C1 byproducts. The hydrophobic C60 shortened the retention of H2O on the active site interface, restraining the water–gas shift reaction. This leads to a significant decrease in CO2 generation, accompanied by an increase in the CO conversion and selectivity toward alcohols. The hydrophobic CoCuSNT@C60 catalyst was characterized by X-ray diffraction, Fourier transform infrared spectra, N2 adsorption–desorption isotherms, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. Compared to the unmodified CoCuSNT, the C60-modified hydrophobic CoCuSNT@C60 catalyst possesses higher CO hydrogenation activity and high alcohol selectivity, along with an impressive stability of up to 350 h to meet industrial applications.
研究领域:
能源化学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2017
·
IF 4.95
Pin Wu,Hua-Ming Xiao,Jun Ding,Qian-Yun Deng,Fang Zheng,Yu-Qi Feng
Quantification of low molecular weight compounds (<800 Da) using matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI MS) is challenging due to the matrix signal interference at low m / z region and poor reproducibility of MS responses. In this study, a C60 labeling-MALDI MS strategy was proposed for the fast, sensitive and reliable determination of amino acids (AAs) in biofluids. An N -hydroxysuccinimide functionalized C60 was synthesized as the labeling reagent and added as an 880 Da tag to AAs; a carboxyl acid containing C60 was employed as the internal standards to normalize MS variations. This solved the inherent problems of MALDI MS for small molecule analysis. The entire analytical procedure—which consisted of simple protein precipitation and 10 min of derivatization in a microwave prior to the MALDI MS analysis—could be accomplished within 20 min with high throughput and great sample matrix tolerance. AA quantification showed good linearity from 0.7 to 70.0 μM with correlation coefficients (R) larger than 0.9954. The limits of detection were 70.0–300.0 fmol. Good reproducibility and reliability of the method were demonstrated by intra-day and inter-day precision with relative standard deviations less than 13.8%, and the recovery in biofluid ranged from 80.4% to 106.8%. This approach could be used in 1 μL of urine, serum, plasma, whole blood, and cerebrospinal fluid . Most importantly, the C60 labeling strategy is a universal approach for MALDI MS analysis of various LMW compounds because functionalized C60 is now available on demand.
研究领域:
分析化学
·
生物医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2018
·
IF 3.849
Hongye Huang,Meiying Liu,Junyu Chen,Liucheng Mao,Guanjian Zeng,Yuanqing Wen,Jianwen Tian,Naigen Zhou,Xiaoyong Zhang,Yen Wei
Recently, fullerene (C 60 ) and its derivatives have attracted tremendous research interest in diverse fields owing to their excellent fluorescence and biological properties. In this work, the carboxyl groups containing fluorescent C 60 COOH nanoparticles have been prepared via a one-step thiol-ene click reaction for the first time. Then, we would further demonstrate that C 60 COOH nanoparticles possess excellent water dispersibility, low cytotoxicity, outstanding fluorescence properties and uniform minuscule based on various characterization techniques. On account of these advantages, we further evaluate their performance in cell imaging. Furthermore, the carboxyl groups on the surface of C 60 COOH nanoparticles could not only improve their water dispersibility, but also be potentially used to conjugate with various biomolecules and drug molecules. Based on these carboxyl groups, we loaded the anticancer agent cisplatin on C 60 COOH nanoparticles and further explore their potential for controlled drug release. Taken together, we have developed a novel thiol-ene click reaction for preparation of carboxyl groups functionalized fluorescent C 60 based nanoparticles, which showed great potential for biological imaging and potential for intracellular controlled drug delivery. More importantly, this strategy developed in this work should also be expanded for fabrication of other fluorescent C 60 based nanoparticles through utilizing different thiol-containing compounds and other fluorescent carbon nanoparticles. Therefore, this work will provide some novel ideas for the preparation of various fluorescent carbon nanoparticles for theranostic applications.
研究领域:
材料科学
·
生物医学工程
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 15
·5815
·
IF 4.6
Dongmei Peng,Zhongfeng Zhang,Jijuan Zhang,Yang Yang
The photocatalytic degradation of formaldehyde by graphite-like C3N4is one of the most attractive and environmentally friendly strategies to address the significant threat to human health posed by indoor air pollutants. Despite its potential, this degradation process still faces issues with suboptimal efficiency, which may be attributed to the rapid recombination of photogenerated excitons and the broad band gap. As a proof of concept, a series of graphite-like C3N4@C60composites combining graphite-like C3N4and C60was developed via an in situ generation strategy. The obtained graphite-like C3N4@C60composites exhibited a remarkable increase in the photocatalytic degradation efficiency of formaldehyde, of up to 99%, under visible light irradiation, outperforming pure graphite-like C3N4and C60. This may be due to the composites’ enhanced built-in electric field. Additionally, the proposed composites maintained a formaldehyde removal efficiency of 84% even after six cycles, highlighting their potential for indoor air purification and paving the way for the development of efficient photocatalysts.Keywords:graphite-like C3N4/C60composite;robust built-in electric field;charge transfer;photocatalysis;formaldehyde degradation
研究领域:
环境科学
·
材料科学
✓ 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）