SOLAR ENERGY MATERIALS AND SOLAR CELLS
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2018
·
IF 5.018
Qiang Sun,Xiu Gong,Hao Li,Shuangshuang Liu,Xiaojuan Zhao,Yan Shen,Mingkui Wang
This work presents an easy and controllable method for introducing I 3 - ions into organic cation dripping solution via chemical reaction of I - + I 2 → I 3 - to effectively decrease the concentration of defects in organic-inorganic lead halide perovskite films. The perovskite solar cells based on additional I 3 - ions exhibited better photovoltaic performance , with a maximum power conversion efficiency of 18.7%, being about 15% higher than that of the control device. The elucidation of defects and its suppression by employing additional I 3 - ions provide an important direction for defects elimination and future enhancement of perovskite solar cells efficiency.
研究领域:
材料科学
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能源技术
·
化学工程
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DOI
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
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2025
·
IF 3.1
Ming Li,Hua Sun,Jin-Ling Song,Xing Sun,Wei Li
I3,II8-biapigenin is a biflavonoid compound with diverse pharmacological effects. The present study aimed to investigate the glucuronidation of I3,II8-biapigenin in the human liver microsomes (HLMs) and recombinant human UDP-glucuronosyltransferases (UGTs). Three glucuronidation metabolites of I3,II8-biapigenin were detected in HLMs. Both recombinant human UGTs and chemical inhibitors studies demonstrated that UGT1A1, UGT1A3, UGT1A9 and UGT1A10 were involved in the glucuronidation of I3,II8-biapigenin. The present investigation provided information for the drug-drug interaction potentials of I3,II8-biapigenin when co-administrated with UGTs inhibitors or inducers.
研究领域:
药理学
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生物化学
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DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Lingling Hu,Huanjunwa He,Dehua Xia,Yajing Huang,Jiarong Xu,Haoyue Li,Chun He,Wenjing Yang,Dong Shu,Po Keung Wong
A self-stabilized Z-scheme porous g-C3N4/I3–-containing BiOI ultrathin nanosheets (g-C3N4/I3–-BiOI) heterojunction photocatalyst with I3–/I– redox mediator was successfully synthesized by a facile solvothermal method coupling with light illumination. The structure and optical properties of g-C3N4/I3–-BiOI composites were systematically characterized by means of X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, X-ray photoelectron spectroscopy, N2 adsorption/desorption, UV–vis diffuse reflectance spectrum, and photoluminescence. The g-C3N4/I3–-BiOI composites, with a heterojunction between porous g-C3N4 and BiOI ultrathin nanosheets, were first applied for the photocatalytic elimination of ppm-leveled CH3SH under light-emitting diode visible light illumination. The g-C3N4/I3–-BiOI heterojunction with 10% g-C3N4 showed a dramatically enhanced photocatalytic activity in the removal of CH3SH compared with pure BiOI and g-C3N4 due to its effective interfacial charge transfer and separation. The adsorption and photocatalytic oxidation of CH3SH over g-C3N4/I3–-BiOI were deeply explored by in situ diffuse reflectance infrared Fourier transform spectroscopy, and the intermediates and conversion pathways were elucidated and compared. Furthermore, on the basis of reactive species trapping, electron spin resonance and Mott–Schottky experiments, it was revealed that the responsible reactive species for catalytic CH3SH composition were h+, •O2–, and 1O2; thus, the g-C3N4/I3–-BiOI heterojunction followed an indirect all-solid state Z-scheme charge-transfer mode with self-stabilized I3–/I– pairs as redox mediator, which could accelerate the separation of photogenerated charge and enhance the redox reaction power of charged carriers simultaneously.
研究领域:
环境科学
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材料科学
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化学工程
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DOI
PubMed
高影响因子
Arabian Journal of Chemistry
·
2024
·
IF 5.3
Jie Lian,Wenyu Gong,Jianing Guo,Mingxing Wu
Construction of mesoporous structure and improving the conductivity of carbon counter electrode are feasible paths to enhance the catalytic activity in dye-sensitized solar cells (DSCs) toward the I 3 - /I - redox couple regenerating (IRR). Herein, mesoporous carbon fiber (PCf) has been first synthesized and the DSCs using PCf counter electrode results in a power conversion efficiency (PCE) of 7.12%, significantly surpassing the PCE of 6.01% generated by the DSCs with carbon fiber (Cf) counter electrode without mesoporous structure. Additionally, doping with heteroatoms B or N can further enhance the catalytic performance of PCf. Consequently, B or N doped Cf (BPCf or NPCf) counter electrode-based DSCs achieve high PCE values of 8.43% and 7.96%, respectively, demonstrating PCE improvements of 40.3% and 32.4%. This enhancement in catalytic activity for IRR in DSCs can be first attributed to the increased specific surface area of Cf which can provide more catalytic activated sites. Meanwhile, the enhanced conductivity of PCf by heteroatoms B or N doping is also an important factor for the improved catalytic activity. This work is expected to provide potential path to enhanced the catalytic activity of carbon counter electrode in DSCs toward IRR.
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
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Xiu Yun Gu,Chao Yue Zhang,Jun Di Cheng,Shi Qiang Kang,Kun Wei,Geng Zhi Sun,Xiu Ping Gao,Xiao Jun Pan,Jin Yuan Zhou
To develop highly active catalysts as counter electrodes is another promising way for improving the photovoltaic conversion efficiency (PCE) of fibrous dye-sensitized solar cells (FDSSCs). Then considering their applications in wearable electronic system, the designed fibrous counter electrodes (FCEs) should possess a good mechanical flexibility except high catalysis performances. Here in this work, hexagonal nickel telluride (Ni 3 Te 2 ) microsheets with tunable diameters and thicknesses were in-situ prepared via an atmospheric pressure chemical vapor deposition method on nickel wires. Benefiting from their two-dimensional laminated structure and asymmetric crystalline structure, the Ni 3 Te 2 microsheets show a high catalytic activity for the reduction of I 3 - → I - during the photoelectrochemical processes in FDSSCs. And cell tests show that the maximum PCE of FDSSCs with Ni 3 Te 2 FCEs reaches 11.81% (with an average value of 10.47%), which is 2.10 times that of the ones with Pt FCEs (5.62%). Furthermore, series of optimization on the microscale morphologies of Ni 3 Te 2 microsheets indicates that the suitable diameter (30 ∼ 40 μm) and thickness (ca. 3.0 μm) are suitable for the diffusion and reduction of I 3 - ions. Besides, the FDDSCs with Ni 3 Te 2 PCEs show a high cycling stability and an excellent dynamic bending stability (attenuation rate of 0.12‰ per bending cycle). This research would provide some insights into the design of high-performance FCEs for FDSSCs towards wearable electronic devices.
研究领域:
材料科学
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纳米技术
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太阳能
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电化学
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可穿戴电子
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产品关联
DOI
高影响因子
Chemical Science
·
2025
·
IF 7.4
Fengjiao Meng,Junsen Zhong,Xiaoqian Tan,Jian-Bo Cheng,Bo Xiao,Shengliang Zhang,Fuyi Jiang,Wenbao Liu,Wei Liu,L Kang
Electrochromic (EC) windows are receiving numerous attentions owing to their flexibly adjustable optical properties controlled by external bias. Nevertheless, the widespread commercialization of EC windows still faces substantial impediments including high cost, intricate fabrication process, slow switching times and especially poor durability. Herein, we propose a facile yet high-performance EC system based on the reversible electrodeposition of iodine, which is theoretically free of “ion-trapping”, structure degradation, dendrite growth and corrosion issues encountered by the traditional EC windows. To overcomes the polyiodide shuttle problem, the electrolyte is further modified with [EMIM]+, which can coordinate with the polyiodide intermediates to form insoluble [EMIM]I3, and thereby effectively suppress polyiodide formation and shuttling. Moreover, the preferential adsorption of [EMIM]+ on to the Zn counter electrode ensures uniform and stable Zn deposition/striping, synergistically improving the durability of the I2-Zn EC window. With these multifaceted merits, the austere EC system simultaneously achieves rapid response speeds (tcoloring: 7 s, tbleaching: 6 s), high optical modulation amplitude (89.6% at 500 nm), impressive coloration efficiency (44.8 cm2 C-1) and excellent lifetime (without performance attenuation after 10,000 cycles). The scaling potential of the device is further demonstrated by constructing a large-area (10 * 10 cm2) device.
研究领域:
材料科学
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电化学
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功能材料
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智能窗技术
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能源材料
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产品关联
DOI
PubMed
高影响因子
CRYSTENGCOMM
·
2013
·Vol. 15
·期 48
·10459-10463
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IF 3.879
Yong Cui,Gang Wang,Daocheng Pan
Metastable wurtzite I3-III-IV-VI5 (Cu3InSnS5) semiconductor nanocrystals were successfully synthesized via a hot-injection approach. The structure, composition, morphology, and optical properties of Cu3InSnS5 were characterized by powder X-ray diffraction, energy dispersive spectrometry, transmission electron microscopy, and UV–Vis absorption. Their suitable band gap value and photoresponse indicate a high potential application in the field of thin film solar cells.
研究领域:
材料科学
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纳米技术
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半导体物理
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光伏
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 31
·期 32
·2101637
·
IF 18.808
Xudong Hu,Yang Zhao,Seung Joon Yoo,Xin Li,Xiaojun Zeng,Chunming Zheng,Xiaohong Sun,Galen D. Stucky
Sodium-metal batteries (SMBs) employing transition-metal-free cathodes are of great importance for energy storage applications that require low cost and high energy density. A strategy to enhance the energy density of transition-metal-free-cathode SMBs by transforming the electrolyte from a dead mass to an energy-storage contributor is reported. NaI is used for the partial substitution of NaClO 4 in the electrolyte and thus provides the additional electrochemistry of I 3 − /I − redox couple to enhance battery performance. Graphene oxide (GO) encapsulated mesoporous (10 nm) carbon spheres (N-MCS@GO) that are nitrogen-doped (15.71 at%) are fabricated as the cathode for the I 3 − /I − redox enhanced SMBs. It is experimentally demonstrated that: the mesoporous structure increases the capacitive energy storage by providing a substantial interface that enhances the electrochemistry of I 3 − /I − redox couples; and encapsulation of the mesoporous carbon spheres with GO suppresses self-discharge and increases Coulombic efficiencies from 70.4% to 91.9%. In full-cell configuration, N-MCS@GO working with the NaI-activated electrolyte can deliver a capacity of 279.6 mAh g −1 with an energy density of 459.2 Wh kg −1 in 0.5–3 V at 200 mA g −1 . I 3 − /I − redox in the full cell maintains its activity without obvious decay after 1000 cycles at 1 A g −1 , highlighting the practical application of the I 3 − /I − redox enhanced SMBs.
研究领域:
材料科学
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电化学
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
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IF 5.4
Yiyu Yang,Yifan Liu,Yuenan Zhang,Aiguo Wu,Changyong Gao,Yujie Zhang
Uric acid (UA) serves as a crucial biomarker, its abnormal levels can lead to various diseases, including gout and Parkinson's disease. Consequently, the rapid detection of UA in biofluids is essential for clinical diagnosis, monitoring and disease prevention. This study developed a convenient colorimetric assay for the detection of UA using gold nanorods (Au NRs) based on the reductive property of UA and using I 3 - as an oxidative etchant. At room temperature, I 3 - oxidatively etched Au NRs, prompting a blue shift in the longitudinal localized surface plasmon resonance (LSPR) absorption peak of Au NRs, altering solution color from blue to pink. As a reducing agent, UA is capable of inhibiting the etching process of Au NRs induced using I 3 - through redox reaction, thereby preserving the original color of the solution. This detection strategy displays good selectivity and anti-interference capabilities, achieving an unaided eye detection limit of 5 μM and a UV–vis absorption spectroscopy detection limit of 1.51 μM. Furthermore, it exhibits satisfactory performance when it was applied to practical samples, offering an innovative sensing approach for UA detection with significant potential for application in clinical analysis.
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DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2020
·
IF 6.146
Zhou Ren,Yang Liu,Yuan Lyu,Xiangen Song,Changyong Zheng,Zheng Jiang,Yunjie Ding
A single-Rh-site catalyst (Rh-TPISP) that was ionically-embedded on a P(V) quaternary phosphonium porous polymer was evaluated for heterogeneous ethanol carbonylation . The [Rh(CO)I 3 ] 2– unit was proposed to be the active center of Rh-TPISP for the carbonylation reaction based on detailed Rh L 3 -edge X-ray absorption near edge structure (XANES), X-ray photoelectron spectroscopy (XPS), and Rh extended X-ray absorption fine structure (EXAFS) analyses. As the highlight of this study, Rh-TPISP displayed distinctly higher activity for heterogeneous ethanol carbonylation than the reported catalytic systems in which [Rh(CO) 2 I 2 ] − is the traditional active center. A TOF of 350 h −1 was obtained for the reaction over [Rh(CO)I 3 ] 2– , with >95% propionyl selectivity at 3.5 MPa and 468 K. No deactivation was detected during a near 1000 h running test. The more electron-rich Rh center was thought to be crucial for explaining the superior activity and selectivity of Rh-TPISP, and the formation of two ionic bonds between [Rh(CO)I 3 ] 2– and the cationic P(V) framework ([P] + ) of the polymer was suggested to play a key role in firmly immobilizing the active species to prevent Rh leaching.
研究领域:
催化化学
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材料科学
·
配位化学
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Qingxin Ge,Zhou Zhou,Jing Li,Xiangyang Qu,Qiaoqiao Fang,Zhiliang Han,Rongliang Wu,Huaping Wang,Shiyan Chen
Given the widespread availability of low-grade heat (< 100 °C), its conversion into electricity represents a highly promising green technology. Thermo-electrochemical cells (TECs) have garnered significant attention for their potential in low-grade thermal energy harvesting, largely due to their relatively high thermopower. An efficient approach to achieve high thermopower is establish a high and stable concentration gradient (∆C). However, the ∆C construction process is often limited by a false saturation state in conventional I − /I 3 − TECs. To address this issue, we propose a enhancement strategy that utilizes a non-additive ion effect to enhance the free energy of hydrophobic ions. Specifically, the addition of strongly hydrating anions (SO 4 2− ) disrupts the coordination between weakly hydrating I 3 − ions and cations (K + ) by competitively occupying the K + coordination site. The free energy of I 3 − raise effectively and promote the hydrophobic interaction with methyl cellulose (MC), breaking the false saturation state and enabling a significantly greater ∆C. The implement of this strategy gets a high thermopower of 18.41 mV K −1 in this gel-based TECs. Moreover, a module comprising six series-connected devices produce a stable output of 520 mV under a 5 °C temperature difference. This work highlights the untapped potential of traditional systems for efficient thermal energy harvesting, offering a new strategy to overcome this false saturation state.
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DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·
IF 5.7
Xinru Zhang,Ning Li,Xiaojing Cui,Yu Li,Zhaosu Wang,Kai Zhuo,Hulin Zhang
Most traffic accidents are caused by driver fatigue, so achieving effective monitoring of fatigue status is particularly important. However, current detection methods mainly rely on complex biosensors that lack independence from power supply and adaptive adhesion, and have a risk of ingestion, especially for infants. Here, we propose an edible thermogalvanic hydrogel with I−/I3− as a redox pair for self-powered physiological monitoring by coupling thermogalvanic and piezoresistive effects. The gelatin/glycerol (Gel/GL) hydrogel exhibits excellent thermo-reversible gelling and temperature-responsive adhesion that can ensure on-demand reliable adhesion to skin for capturing physiological signals under hot compress and facilitate easy removal under cold compress due to the decomplexation and re-entanglement of gelatin chains. Moreover, a low-cost passive patch based on this self-adaptable thermogalvanic gel has been invented to simultaneously monitor breathing, blinking, yawning, and pulse at the canthus, philtrum and radial artery of the human body by acquiring thermoelectric signals correlated with physiological action, achieving a self-powered accurate surveillance of fatigue status, which can provide timely reminders based on fatigue levels. This work is beneficial for improving driving safety and exhibits the potential of the designed hydrogel for application in intelligent transportation.
研究领域:
生物医学工程
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材料科学
·
智能交通
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）