ChemElectroChem
·
2022
·Vol. 9
·期 21
·e202200985
·
IF 4.782
Zhuanzhuan Shi,Liang Liu,Yuan Li,Xiaoshuai Wu,Yunpeng Li,Qingyuan Li,Xijuan Hao,Chang Ming Li,Chunxian Guo
Graphical Graphdiyne is firstly explored for high selectivity direct electrochemical sensing of Cu 2+ , achieving a wide detection range of 0.25–380 μM and a trace level as low as 8 nM. This high performance is attributed to the unique C≡C structure of GDY, which possesses both chelating and reducing abilities to anchor and reduce Cu 2+ to Cu + . Graphdiyne (GDY), an emerging type of carbon allotropes with unique sp−sp 2 carbon atoms, is firstly explored for high selectivity direct electrochemical sensing of ultra-trace level copper ions (Cu 2+ ). It achieves a wide detection range of 0.25–380 μM and a trace level as low as 8 nM, among the best performance of reported carbon-based sensors. It is found that GDY with unique C≡C possesses both chelating and reducing abilities to efficiently anchor and reduce Cu 2+ to Cu + , eventually leading to ultrasensitive detection.
研究领域:
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2022
·
IF 4.331
Zhiliang Jin,Xiaohong Li,Teng Li,Youji Li
Graphdiyne (g-CnH2n–2) is a new carbon material composed of sp and sp2 hybrid carbon atoms. Since the synthesis by Li’s team, graphdiyne has been widely studied in other fields because of its excellent properties. In this paper, graphdiyne was synthesized from copper-containing materials and the composite GDY/CuI/MIL-53(Al) S-scheme heterojunction is prepared for photocatalytic cracking of water to produce hydrogen. First, GDY/CuI was prepared by organic synthesis, and then GDY/CuI was anchored on the surface of MIL-53(Al) by in situ ultrasonic stirring. After the continuous optimization of experimental conditions, the final hydrogen evolution rate is much higher than that of MIL-53(Al). This efficient photocatalytic performance can be attributed to the S-scheme heterojunction formed by the unique energy band arrangement. At the same time, the mechanism of charge transfer was demonstrated by in situ irradiation X-ray photoelectron spectroscopy. The strong interaction among the three strongly promotes the separation and transfer of photogenerated electron–hole pairs.
研究领域:
材料科学
·
能源化学
·
光催化技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yanhu Han,Zhaowei Jia,Wenxue Gong,Xuechun Wei,Yu Zhang,Mengying Tao,Yaofei Ren,Zuyi Lu,Yutong Wu,Jianhua Chen,Zhongfeng Shi,Zhenxia Zhao,Zhongxing Zhao
Developing photocatalysts with high activity and selectivity remains a significant challenge in the field of CO 2 photoreduction for producing valuable chemical or fuel products under mild conditions. Herein, photonic crystal (PC) GDY-Cu/ZnO was constructed through the in-situ induced growth of graphdiyne (GDY) on PC Cu/ZnO surface via H 2 -reduction for efficient photoreduction of CO 2 to CH 4 . With the aid of photonic crystal structure, PC GDY-Cu/ZnO exhibits a distinctive red-edge slow light region which can significantly improve the utilization efficiency of visible light and intensify photo-catalysis. Additionally, the formed all-solid-state Z-scheme system efficiently accelerates photoelectron migration, facilitating e - /h + separation. Thirdly, the surface GDY, along with the enrich oxygen vacancies generated during H 2 reduction, enhances the adsorption and activation toward CO 2 and H 2 O on PC GDY-Cu/ZnO interface. In consequence, PC GDY-Cu/ZnO demonstrates highly photocatalytic conversion of CO 2 to CH 4 , achieving a CH 4 yield of 33.67 μmol·g −1 ·h −1 with 93.3 % selectivity via slow-light-driven photocatalysis CO 2 reduction. This work provides an efficient strategy to modify ZnO for the efficient photoreduction of CO 2 to CH 4 .
研究领域:
材料科学
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环境科学
·
化学工程
·
光催化
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Shenghao Zhang,Meiling Zhang,Yinhao Zhang,Yingxia Zong,Xu Hun
Here, we designed a catalytic DNA assembly (CDA) amplification strategy to construct a photoelectrochemical (PEC) assay to detect the specific target F3L-gene of Monkeypox Virus (MPXV). Graphdiyne (GDY) and CuSe were synthesized by a surface-assisted deprotection/polymerization method and hydrothermal method, respectively. Then AuNPs and GDY/CuSe nanocomposites were modified on the surface of gold electrode (GE). The hairpin DNA4 (H4) was incubated onto the surface of the electrode by Au-S bond. When the target was present, the CDA was occurred by hairpin DNA1 (H1) and hairpin DNA2 (H2). Then, DNA3 (H3) hybridized with the single stranded region of H1-H2 complex, formed a site that can be hydrolyzed by exonuclease III, led to exonuclease III hydrolysis of DNA and to release the H3 primer (H3P). H3 further opened H4 and triggered a subsequent CDA reaction, ultimately formed a Y-shaped DNA structure on the electrode surface with the help of DNA5 (H5) and DNA6 (H6). The two end sequences of H4 and H6, which constituted the Y-shaped structure, were designed as split H3P fragments. They can be used as primers to trigger CDA reactions for more efficient and characteristic autocatalytic signal amplification. The Y-shaped structure carried H5-ALP, and catalyzed phosphonoxyphenol ( o -PP) to generate benzene-1,2-diol (CA), which could enhance the PEC signal. The linear range is 0.1 fM-10.0 pM with the detection limit of 0.05 fM (3S/N) for MPXV.
研究领域:
生物医学
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分子诊断
·
纳米材料科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2022
·
IF 4.177
Ziqi Li,Qi Kang,Luhua Lu,Wenbo Li,Yuliang Li,Wei Chen
Electrically controlling the emissivity provides a dynamic, precise, and low-energy-consuming solution for thermal radiation manipulation. The adjustable bandgap, abundant pores, physical stability, and electrochemical activity mean that graphdiyne (GDY) has great potential in electrically emissivity regulation. In this study, a GDY nanowall was successfully synthesized through a cross-coupling reaction with a controlled monomer concentration. Besides the morphology and microstructure characterizations, the intrinsic integrated emissivity in the wavelength of 2–20 μm was determined to be 0.66. Afterward, GDY composited with graphene was utilized as the electrode to fabricate an electrochemical device and emissivity modulator, with 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide serving as the electrolyte. Interestingly, the GDY-based modulator demonstrated a unique capacity to modulate emissivity under a negative voltage, unlike pure graphene and other materials that can only regulate emissivity under a positive voltage. To explore the dynamic control mechanism of GDY, an in situ Raman characterization was performed, which revealed a considerable redshift and decrease in the intensity of the characteristic alkyne peaks. We proposed that the novel emissivity tuneability of GDY is caused by the cation-induced changes in the alkyne bond. Alkyne bonds transform into alkene bonds by coordinating with 1-ethyl-3-methylimidazolium cations in the presence of an electrical field, resulting in an energy level change and a change in the optical properties of GDY. These discoveries may open the way for the application of GDY in thermal radiation control and the study of molecular-scale active materials in electro-optical modulation.
研究领域:
材料科学
·
物理化学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Shuyue Guo,Yanan Jiang,Fei Wu,Ping Yu,Huibiao Liu,Yuliang Li,Lanqun Mao
As a new kind of two-dimensional carbon allotrope, graphdiyne (GDY) consists of sp- and sp2-hybridized carbon atoms and has recently been used for developing highly efficient photocatalytic systems because of its unique properties. In this study, we find that GDY can form a Pickering emulsion with silver phosphate (Ag3PO4) nanoparticles that exhibits largely enhanced photocatalytic activity in the visible-light region. In this system, Ag3PO4 acts as a photocatalytically active semiconductor with GDY as the hydrophobic nanostructure. Photocatalytic activity of the Ag3PO4/GDY-based Pickering emulsion toward the photodegradation of methylene blue (MB) and photooxidation of water is investigated under visible-light irradiation. Compared to previous Ag3PO4/CNT- or Ag3PO4/graphene-based Pickering emulsions, the Ag3PO4/GDY-based emulsion efficiently catalyzes MB degradation with a higher apparent rate constant k being ∼0.477 min–1, while for water oxidation its photocatalytic activity is also improved by 1.89 and 1.75 times, respectively. Such an enhancement in the photocatalytic activity is mainly ascribed to the capability of GDY in acting as an acceptor of the photogenerated electrons from Ag3PO4 nanoparticles and in facilitating the hole transportation as well as in reducing Ag+ to Ag0. This study demonstrates that GDY is a new candidate with a promising future in developing photocatalytic systems with high efficiency for real applications.
研究领域:
材料科学
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光催化
·
纳米技术
·
环境科学
✓ 已验证
DOI
高影响因子
RARE METALS
·
2024
·Vol. 43
·期 4
·1747-1757
·
IF 9.6
Jiang Ming-Ji,Zhang Ya-Na,Meng Ling-Shen,Kang Jing,Li Yong-Jun,Dong Alideertu
Based on the in-situ self-reduction and chemical stability, graphdiyne (GDY) and graphdiyne oxide (GDYO) are used as trapping agents to investigate the ability for recovering Au 3+ , Ag + , and Pd 2+ under different pH values and interfering ions. Under strong acidity at pH = 1, these two agents demonstrate high select recovery towards the three precious metal ions, which could be in-situ reduced to nanoparticles (NPs). In addition, superparamagnetic Fe 3 O 4 NPs are deposited on the surfaces of GDY and GDYO. The magnetic responses enable GDY-Fe 3 O 4 to recover precious metals conveniently and efficiently by the aid of an external magnetic field. This study also confirms the antibacterial activity of the as-recovered NPs deposited on GDY and GDYO against Escherichia coli and Staphylococcus aureus (1 × 10 5 colony-forming unit (CFU)·ml −1 ) , and the antibacterial rates are 100%. This strategy of recovering precious metals and subsequently reusing to combat pathogens will be of great significance for environmental remediation and biomedical applications. Graphical abstract
研究领域:
材料科学
·
环境修复
·
纳米技术
·
生物医学应用
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化学工程
✓ 已验证
DOI
高影响因子
Small
·
2021
·Vol. 17
·期 38
·2102066
·
IF 13.281
Qian Chang,Fan Wang,Zicheng Zuo,Feng He,Yao Zhao,Fuyi Wang,Yuliang Li
Suppressing the irreversible interfacial reactions is an important scientific bottleneck in the development of stable high-energy-density lithium-ion battery. The interfacial chemistry of graphdiyne (GDY) on the high-voltage cathode of LiNi 0.5 Mn 1.5 O 4 (LNMO) shows a very interesting process, in which the sp-hybridization carbon atoms chemically scavenge the hydrofluoric acid (HF) and in situ form the fluorinated GDY interface. It first turns the harmful HF into profit, and greatly enhances the interfacial stability and restrains the side reaction on the cathode under high working voltage. The GDY-coated LNMO cathode obviously alleviates the electrolyte degradation, achieves high Coulombic efficiency and reliability. Due to atomic-level selectivity and chemical trapping of HF by GDY, it effectively suppresses the dissolution of Mn, Ni elements. These results highlight the unparalleled advantages of GDY in the formation of high stable interfaces and protection of high-energy-density electrodes.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
ADVANCED MATERIALS
·
2020
·Vol. 32
·期 23
·2001082
·
IF 27.398
Ye Zhang,Pu Huang,Jia Guo,Rongchao Shi,Weichun Huang,Zhe Shi,Leiming Wu,Feng Zhang,Lingfeng Gao,Chao Li,Xiuwen Zhang,Jialiang Xu,Han Zhang
Graphdiyne (GDY), a newly emerging 2D carbon allotrope, has been widely explored in various fields owing to its outstanding electronic properties such as the intrinsic bandgap and high carrier mobility. Herein, GDY-based photoelectrochemical-type photodetection is realized by spin-coating ultrathin GDY nanosheets onto flexible poly(ethylene terephthalate) (PET) substrates. The GDY-based photodetectors (PDs) demonstrate excellent photo-responsive behaviors with high photocurrent ( P ph , 5.98 µA cm - 2 ), photoresponsivity ( R ph , 1086.96 µA W - 1 ), detectivity (7.31 × 10 10 Jones), and excellent long-term stability (more than 1 month). More importantly, the PDs maintain an excellent P ph after 1000 cycles of bending (4.45 µA cm - 2 ) and twisting (3.85 µA cm - 2 ), thanks to the great flexibility of the GDY structure that is compatible with the flexible PET substrate. Density functional theory (DFT) calculations are adopted to explore the electronic characteristics of GDY, which provides evidence for the performance enhancement of GDY in alkaline electrolyte. In this way, the GDY-based flexible PDs can enrich the fundamental study of GDY and pave the way for the exploration of GDY heterojunction-based photodetection.
研究领域:
材料科学
·
电子工程
·
理论计算
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Xiao Li,Ning He,Xiaojing Li,Xu Wang,Lei Zhan,Wei-En Yuan,Jialin Song,Yuanming Ouyang
Graphdiyne (GDY) is a kind of nanomaterial from the graphene carbon family with excellent physical and chemical properties. Despite some applications in medical engineering, GDY has not been used as an electroactive scaffold for tissue regeneration because of its unclear in vitro and in vivo biosafety profiles. Here, a conductive GDY nanomaterial-loaded polycaprolactone (PCL) scaffold was prepared by electrospinning technique. For the first time, the biocompatibility of GDY-based scaffold was assessed at the cellular and animal levels in a peripheral nerve injury (PNI) model. The findings indicated that the conductive three-dimensional (3D) GDY/PCL nerve guide conduits (NGCs) could significantly improve the proliferation, adhesion and glial expression of Schwann cells (SCs). The conduits were implanted into a rat 10-mm sciatic nerve defect model for 3 months in vivo. The toxicity of scaffolds to the organs was negligible, while the GDY/PCL NGCs significantly promoted myelination and axonal growth by upregulating the expression levels of SC marker (S100 β protein), Myelin basic protein (MBP), and axon regeneration marker (β3-tubulin protein (Tuj1) and neurofilament protein 200 (NF200)). In addition, upregulation of vascular factor expression in GDY/PCL NGC group suggested the potential role in angiogenesis to improve nerve repair by GDY nanomaterials. Our findings provide new perspectives on biocompatibility and effectiveness of GDY nanomaterial scaffold in peripheral nerve regeneration for preclinical application.
研究领域:
生物医学工程
·
组织工程
·
纳米技术
·
神经科学
·
再生医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Nano Materials
·
2023
·
IF 5.9
Guiquan Liu,Guorong Wang,Zhiliang Jin
Coupling hydroxides with highly conductive materials has become an effective means to solve their conductivity and stability issues in supercapacitors. Herein, a nanoflower nickel–vanadium layered double hydroxide/graphdiyne (NiV-LDHs/GDY) compound was obtained via a two-step strategy which corrected the shortcomings of poor electrical conductivity and stability of nanoflower NiV-LDHs. The nanoflower NiV-LDHs/GDY occupies a preferable mass-specific capacitance of 1397 F g–1 (1 A g–1), rate performance of 70.01% (20 A g–1), and durability of 100.00% after 5000 cycles compared to NiV-LDHs. In addition, the NiV-LDHs/GDY//AC ASC reveals a corresponding energy density of 35.42 Wh kg–1 (at a power density of 2602.43 W kg–1), and the corresponding energy storage capacity still stays at 80.52% after 6000 cycles. The performance improvement is mainly attributed to the introduction of GDY, which improves the pore structure and charge transfer capacity of NiV-LDHs. Hence, such considerable results suggest that nanoflower NiV-LDHs/GDY could be potential candidate materials for energy storage equipment.
研究领域:
材料科学
·
能源存储
✓ 已验证
DOI
高影响因子
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
·
2022
·Vol. 38
·期 6
·1380-1386
·
IF 2.726
Du Yuncheng,Zheng Xuchen,Xue Yurui,Li Yuliang
Electrocatalytic CO 2 reduction is great promising in alleviating the excessive CO 2 emission and the conversion to valuable productions. Herein we report the in-situ controlled growth of Bismuth nanoflower/graphdiyne heterostructures(Bi/GDY) for efficient CO 2 conversion toward formate. Based on GDY, the obtained electrocatalyst exhibits a partial current density of 19.2 mA/cm 2 and high reaction selectivity towards formate with a high Faradic efficiency of 91.7% at −1.03 V vs. RHE, and an energy efficiency of 58.8%. The high formate yield rates could be maintained at around 300 µ.mol/(cm 2 ·h) over a wide potential range. Detailed characterizations show that the unique interface structures between GDY and Bi can enhance the charge transfer ability, increase the number of active sites, and improve the long-term stability, and finally reach high-performance electrocatalytic conversion of CO 2 to formate.
研究领域:
材料科学
·
电化学
·
催化
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）