ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xing Gao,Tao Shi,Lei Zu,Huiqin Lian,Xiuguo Cui,Xiaodong Wang
Aqueous zinc-ion batteries (ZIBs) are regarded as a type of promising energy-storage device because of their high safety and low cost, and polyaniline (PANI) is normally employed as a cathode material for ZIBs owing to its unique electrochemical properties and high environmental stability. However, a low specific capacity and a short cycle life limit the development and applications of PANI-based electrodes. Herein, we have developed a novel type of highly stable PANI-based cathode material enabled by phosphene (PR) for aqueous Zn-PANI batteries through in situ chemical oxidative polymerization. The introduction of PR nanoflakes not only inhibits the degradation of PANI and generates more active sites for Zn2+ storage but also enables a synergistic effect of the Zn2+ insertion/extraction and P–Zn alloying reaction. This promotes a high reversible specific capacity of 240.2 mAh g–1 at 0.2 A g–1 and excellent rate performance for the PR/PANI nanocomposite cathode material. Compared to the pristine PANI cathode material, the PR/PANI nanocomposite cathode material is more suitable for the Zn-PANI battery, thanks to its higher specific capacity and better cycle stability. This study provides an innovative approach for developing the next generation of reliable PR-based electrode materials for aqueous energy-storage devices.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2019
·
IF 8.355
Zhencai Qu,Kun Wu,Enxiang Jiao,Weilong Chen,Zhuorong Hu,Changan Xu,Jun Shi,Shan Wang,Zhiyou Tan
Similar to graphene, single or few-layer of black phosphorus (BP) are promising for its high thermal stability and unique characteristic dimension effects. However, the agglomeration problem of BP nanosheets in polymer matrix renders great difficulty toward its application. Herein, Melamine-formaldehyde (MF) is conducted to functionalize black phosphorus (BP) nanosheets. Based on density functional theory (DFT) calculations, the adsorption energy is −0.63 eV, which suggests there exists a strong mutual adsorption between BP nanosheets and MF. The functionalized BP (BP@MF) is introduced into epoxy resin (EP) to evaluate its thermal stability and flame retardant properties. BP@MF can successfully solve the aggregation phenomenon due to the improved dispersibility of BP in EP matrix. With the incorporation of 1.2 wt% BP@MF into EP matrix, the char yield is dramatically improved by 70.9%, which is attributed to the outstanding thermal stability and the catalytic charring effect of BP@MF. EP/BP@MF nanocomposites can pass the UL-94V-0 rating, and the limiting oxygen index value increases by 25.9%. The peak of heat release rate is reduced by 43.3% and the fire growth rate decreases by 41.2%, which is ascribed to the inhibition of heat transfer and isolation of oxygen by BP@MF. Meanwhile, BP@MF reveals an extremely high flame retardant efficiency by a small addition amount. Below 400 °C, MF sublimates to absorb heat and BP@MF promotes the formation of an expanded carbon layer. Above 400 °C, BP may scavenge free radicals and catalyze char formation. As one new nanofiller of 2D materials, BP has great potential to fabricate high-performance nanocomposites.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2021
·
IF 4.464
Yingying Sheng,Yifu Zhu,María Luisa Cerón,Yufu Yi,Peng Liu,Peng Wang,Ting Xue,María Belén Camarada,Yangping Wen
Nanozyme based on the silver nanoparticles (AgNPs) decorated highly water-oxygen stable phosphorene (BP) nanohybrid with phosphorus-doped porous carbon microspheres (P-PCMs) is applied as an intelligent sensing platform for the electrochemical detection of 8-hydroxy-2′-deoxyguanosine (8-OHdG) as a biomarker of oxidative DNA damage in human urine sample. The density functional theory (DFT) is use for investigating the effect of silver on the conductivity level of BP and discussing a possible mechanism for the electrocatalytic oxidation of 8-OHdG. The Ag + is in-situ reduced as AgNPs that grows onto the BP surface for the controllable preparation of BP-AgNPs with effective surface passivation among different metal ions decorated BP. P-PCMs with 4.9-fold enhancement in specific surface area (1636.73 m 2 g −1 ) are prepared by hydrothermal carbonization of α-cyclodextrin as carbon sources, then calcinate in the presence of phosphoric acid as an activator and dopant. P-PCMs-BP-AgNPs are prepared by the ultrasound-assisted liquid-phase exfoliation with the addition of Ag + , and both P-PCMs and black phosphorus crystals are sufficiently grinded. The P-PCMs-BP-AgNPs nanohybrid displays good long-term water-oxygen stability, extraordinary specific surface area, superior electrocatalytic capacity with 303-fold enhancement, enzyme-like characteristics with I max of 100 μA and K m of 29 μM. The machine learning (ML) model with artificial neural network (ANN) algorithm is employed for the intelligent output of 8-OHdG in real sample with acceptable recovery in work range from 0.2 to 125 μM.
研究领域:
生物医学工程
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材料科学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry A
·
2020
·Vol. 8
·期 25
·12705-12715
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IF 11.301
Xinming Wu,Han Wang,Zhilin Zhao,Bin Huang
Although potassium-ion batteries have been widely studied because of their low cost and high theoretical capacity, the origin of the poor potassium-ion storage kinetics and low structural stability still remains elusive mainly due to the large size of K+ (0.138 nm). Herein, we report an interstratification-assembly strategy via van der Waals interactions to design a novel BPE@V2CTx hybrid anode, wherein black phosphorene (BPE) and V2CTx MXene are derived from their individual 2D nanosheets. The coupled BPE@V2CTx hybrid anode with a 2D stacked interstratification structure and large specific surface area could efficiently take advantage of BPE and V2CTx nanosheets and create more active sites. This interstratification hybrid electrode not only provides an enlarged interlayer spacing and a three-dimensional interconnected conductive network to accelerate the K+ transport rates, but also has good tolerance to volume changes caused by phase transformations during the fast potassiation/depotassiation process. DFT calculations further confirm that potassium affinities and diffusion kinetics are significantly enhanced in the BPE@V2CTx hybrid anode, particularly in BPE@V2CF2. As a result, the hybrid anode possesses a remarkable synergetic effect and achieves a high reversible capacity of 593.6 mA h g−1 at 0.1 A g−1 and excellent cycling stability of 485/261 mA h g−1 with 91/86% capacity retention after 3000 cycles at 0.2/2.0 A g−1. This work opens a new way for the application of self-assembled hybrid electrodes in energy storage, electrocatalysis and sensors.
研究领域:
材料科学
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能源存储
·
计算化学
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
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IF 13.2
Tao Chen,Peng Liu,Yu Ge,Xiaoting Lei,Zhenzong Fan,Xiaoyu Zhu,Yangping Wen,Hassan Karimi-Maleh,Xiaoqiang Wang
Sesamol is a momentous marker for evaluating the quality of sesame or sesame products. In this study, a new strategy for fabricating portable smartphone sensor based on violet phosphorene (VP)/two-dimensional transition metal borides (MBene) nanozyme modified with Au − Ag bimetallic nanoparticles (Au − AgNPs) on the surface of the screen-printed electrode, which is synthesized under the guidance of machine learning (ML) with eXtreme Gradient Boosting (XGBoost) algorithms, is described for intelligent sensing of sesamol in farmland and agricultural fields. A fluorine-free hydrothermal-assisted alkane etching strategy is used to prepare the fence-like MoAlB-MBene. Highly environmentally stable VP/MoAlB-MBene nanozyme decorated by Au − Ag bimetallic nanoparticles is obtained by ultrasonic-assisted liquid-phase exfoliation with XGBoost assistance. The ML models including artificial neural network, support vector machine and XGBoost for the synthesis of nanozyme are contrasted and discussed, and the XGBoost algorithm is found as the most accurate model for synthesizing nanozyme due to the highest value of correlation coefficient. The nanozyme-modified screen-printed carbon electrode coupled with the palm-sized smartphone-controlled wireless electrochemical device as a portable wireless intelligent sensing platform for the determination of sesamol in a wider linear range of 0.1 ∼ 1000 μmol/L with a lower limit of detection of 21 nmol/L, which enable the on-site determination of 10 varieties of sesame seeds. This work will provide a new reference for the one-step preparation of bimetallic nanoparticles decorated graphene-like nanozyme guided by ML for cost-effective, simple, fast detection of phytochemicals in agricultural products using a portable smartphone sensor.
研究领域:
食品科学
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材料科学
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人工智能
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2024
·
IF 20.2
Rui Zhai,Zhenyu Wang,Mengyue Gu,Haoliang Liu,Xuewen Zhao,Jiangfan Li,Yaqiong Su,Yonghong Cheng,Shaobin Wang,Jinying Zhang
Selective photoreduction of CO 2 into ethylene is desirable but stays challenging due to easy desorption of primary reduction product CO. Herein, violet phosphorene nanosheets (VPNS) are for the first time demonstrated to be effective CO 2 photoreduction catalysts to yield ethylene. Photoelectron was found to transfer from VPNS to co-catalyst Ag and aggregated on VPNS-Ag interface to enhance CO 2 and CO* adsorption, and further lower the reduction energy barrier to yield ethylene, which was confirmed by in-situ diffuse reflectance infrared Fourier-transform, CO stripping voltammetry, CO reduction experiments, and density functional theory calculations. CO 2 is reduced into COOH* and automatically transformed into CO* on VPNS-Ag surface, then protonized into CHO* with a low barrier of 0.64 eV and automatically coupled into COCHO* to yield ethylene. Only ethylene was detected from CO 2 photoreduction with a yield of 10.34 μmol g −1 h −1 without any hole-sacrificial agent, much higher than most reported photocatalysts.
研究领域:
材料科学
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环境科学
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化学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 46
·27538-27551
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IF 3.119
Qi Wang,Bihan Li,Ping Zhang,Wenming Zhang,Xiaoru Hu,Xiaochen Li
A novel, efficient and stable 2D black phosphorus and tungsten trioxide heterojunction (WO3–BPNs) was successfully synthesized using a combined hydrothermal, liquid phase exfoliating and co-precipitation method. The as-obtained WO3–BPNs composite was characterized by using XRD, SEM, XPS, UV-vis, etc. The results showed that the bandgap energy of the WO3–BPNs50 sample was 2.2 eV, which was lower than that of pure WO3. BPNs in the WO3–BPNs heterojunction as a co-catalyst effectively enhanced photo-generated electron–hole pairs separation. The synthesized WO3–BPNs sample significantly improved the photocatalytic performance in degrading rhodamine B (RhB) and metoprolol (MET) compared to pure WO3 and BPNs under visible-light. The maximum RhB and MET removal efficiencies were 92% and 87%, respectively, in the WO3–BPNs50 (added 50 mL BPNs dispersion) sample within 120 minutes. The relevant photocatalysis mechanisms were discussed. In addition, the intermediate products in the MET photodegradation process were investigated by LC-MS technology, and the degradation pathway of MET was proposed.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MICROCHIMICA ACTA
·
2018
·Vol. 185
·期 12
·1-10
·
IF 5.705
Ge Yu,Camarada María Belén,Xu Lanjiao,Qu Mingren,Liang Huan,Zhao Erlong,Li Mingfang,Wen Yangping
A nanocomposite was prepared from graphene-like two-dimensional black phosphorene (BP, an allotrope of phosphorus) and nafion (Nf) treated with isopropanol (IP). A glassy carbon electrode (GCE) modified with this nanocomposite was found to be a viable sensor for voltammetric determination of clenbuterol (CLB). Unlike previously reported pure BP, the BP nanocomposite was stable towards water and oxygen. Its morphology, structure, electrochemically active surface area and electrochemical stability were investigated. The BP-Nf (IP) modified GCE displayed good electrochemical stability and electrocatalytic capacity with a low working potential of 0.94 V (vs. SCE), excellent peak current response for CLB in a linear concentration range of 0.06–24 μM with a detection limit of 3.7 nM (3σ/m) and a sensitivity of 0.14 μA·μM −1 ·cm −2 under optimal conditions. A sensing mechanism for the electro-oxidation of CLB was suggested and verified by density functional theory calculations under imitation of aqueous solution conditions. The sensor was successfully applied to the determination of CLB in bovine meat and bovine serum samples.
Highly-stable black phosphorene (BP) nanocomposite based on Nafion (Nf) was used to modify a glassy carbon electrode (GCE). It is shonw to be a viable electrochemical platform for sensitive voltammetric determination of trace clenbuterol (CLB) in bovine beef and bovine serum.
研究领域:
分析化学
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材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Small
·
2023
·Vol. 19
·期 52
·2303933
·
IF 13.3
Yandong Wang,Yapeng Chen,Wen Dai,Zhenbang Zhang,Xiangdong Kong,Maohua Li,Linhong Li,Ping Gong,Huanyi Chen,Xinxin Ruan,Chengcheng Jiao,Tao Cai,Wenying Zhou,Zhongwei Wang,Kazuhito Nishimura,Cheng-Te Lin,Nan Jiang,Jinhong Yu
Exploiting novel strategies for simultaneously harvesting ubiquitous, renewable, and easily accessible solar energy based on the photothermal effect, and efficiently storing the acquired thermal energy plays a vital role in revolutionizing the current fossil fuel-dominating energy structure. Developing black phosphorene-based phase-change composites with optimized photothermal conversion efficiencyand high latent heat is the most promising way to achieve efficient solar energy harvesting and rapid thermal energy storage. However, exfoliating high-quality black phosphorene nanosheets remains challenging, Furthermore, an efficient strategy that can construct the aligned black phosphorene frameworks to maximize thermal conductivity enhancement is still lacking. Herein, high-quality black phosphorene nanosheets are prepared by an optimized exfoliating strategy. Meanwhile, by regulating the temperature gradient during freeze-casting, the framework consisting of shipshape aligned black phosphorene at long-range is successfully fabricated, improving the thermal conductivity of the poly(ethylene glycol) matrix up to 1.81 W m −1 K −1 at 20 vol% black phosphorene loading. The framework also endows the composite with excellent phase-change material encapsulation capacity and high latent heat of 103.91 J g −1 . It is envisioned that the work advances the paradigm of contrasting frameworks with nanosheets toward controllable structure thermal enhancement of the composites.
研究领域:
材料科学
·
能源工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROANALYSIS
·
2021
·Vol. 33
·期 12
·2452-2459
·
IF 3.223
Yuzhen Li,Lu Huang,Xuexiang Weng,Zhenmin Liu,Chunping You
The fast detection of 5-hydroxymethyl-2-furfural (HMF) in food industry is vital because of its toxicity and mutagenicity. A glassy carbon electrode (GCE) modified with black phosphorene (BP) nanosheets was prepared and coated with Nafion to improve stability. The electrode has excellent electrochemical stability and current response for HMF electroreduction. The good linear relationship is in the concentration range of 0.1–10 μg/mL with the detection limit of 0.012 μg/mL. HMF electroreduction is a diffusion-controlled process involving two electrons and two protons. The sensor was successfully applied to the measurement of HMF in milk with the recovery values of 92.92 %–96.33 %.
研究领域:
食品科学
·
分析化学
✓ 已验证
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 10
·期 2
·424-434
·
IF 7.779
Jun Yang,Chenrui Zhang,Jitao Geng,Yangyang Sui,Huaixin Wei,Chencheng Sun,Hongbo Geng,Yushen Liu
Herein, in situ chemical anchoring of nickel cobalt selenide (Ni3Se4/CoSe2) on two-dimensional (2D) black phosphorene is creatively proposed via a facile approach. The introduction of 2D black phosphorene brings abundant interfacial effects and provides fully exposed active sites. The construction of such a heterogeneous structure (BP@Ni3Se4/CoSe2) effectively buffers the volume expansion effect caused by Na ion insertion and promotes electron/ion transfer during cycling. Therefore, the BP@Ni3Se4/CoSe2 electrode exhibits superior sodium storage properties in half cells, such as a high stable discharge specific capacity (about 358.8 mA h g−1 at 1 A g−1 after 100 cycles), excellent cycling stability (up to 2500 cycles, the capacity retention rate close to 82%) and high rate performance (from the initial 0.2 A g−1 to the final 20 A g−1 and the total capacity retention rate is about 76%). In addition, BP@Ni3Se4/CoSe2 achieved a high energy density of 163.7 W h kg−1 at the power density of 136.4 W kg−1 in the sodium-ion battery full battery test. Such high performance of BP@Ni3Se4/CoSe2 is attributed to its excellent reaction kinetic characteristics. The investigation of the sodium storage mechanism of BP@Ni3Se4/CoSe2 is conducted in detail.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
Advanced Energy Materials
·
2020
·Vol. 10
·期 24
·2001024
·
IF 25.245
Zhaodong Huang,Ao Chen,Funian Mo,Guojin Liang,Xinliang Li,Qi Yang,Ying Guo,Ze Chen,Qing Li,Binbin Dong,Chunyi Zhi
Output voltage and self-discharge rate are two important performance indices for supercapacitors, which have long been overlooked, though these play a very significant role in their practical application. Here, a zinc anode is used to construct a zinc ion hybrid capacitor. Expanded operating voltage of the hybrid capacitor is obtained with novel electrolytes. In addition, significantly improved anti-self-discharge ability is achieved. The phosphorene-based zinc ion capacitor exploiting a “water in salt” electrolyte with a working potential can reach 2.2 V, delivering 214.3 F g −1 after 5000 cycles. The operating voltage is further extended to 2.5 V through the use of an organic solvent as the electrolyte; the solvent is prepared by adding 0.2 m ZnCl 2 into the tetraethylammonium tetrafluoroborate in propylene carbonate (Et 4 NBF 4 /PC) solvent, and it exhibits 105.9 F g −1 even after 9500 cycles. More importantly, the phosphorene-based capacitors possess excellent anti-self-discharge performance. The capacitors retain 76.16% of capacitance after resting for 300 h. The practical application of the zinc ion capacitor is demonstrated through a flexible paper-based printed microcapacitor. It is believed that the developed zinc ion capacitor can effectively resolve the severe self-discharge problem of supercapacitors. Moreover, high-voltage zinc ion capacitors provide more opportunities for the application of supercapacitors.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
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