MOLECULES
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2026
·Vol. 31
·期 8
·1354
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IF 5.1
Wang Zhou,Tianyun Du,Chunqian Xu,Xiuxun Han
Cs3Cu2I5single crystals are regarded as promising next-generation scintillators due to their large Stokes shift and low self-absorption characteristics. However, the cost-effective solution growth method faces critical challenges: the instability of colloidal precursors in solutions and the severe oxidation of Cu+during crystal growth. This study innovatively introduces yttrium chloride (YCl3) as a dual-functional additive to address both issues simultaneously. The hydrolysis of YCl3creates a controlled acidic environment, effectively suppressing the oxidation of Cu+; meanwhile, it enhances the stability of colloidal precursors by significantly increasing their surface charge and narrowing the particle size distribution. These synergistic effects enable the rapid growth (approximately 100 h) of near-centimeter-sized Cs3Cu2I5single crystals with high crystallinity, without the need for inert gas protection. The optimized crystals exhibit exceptional performance: a photoluminescence quantum yield (PLQY) of 93.22% ± 0.47%, a scintillation decay time of 210.04 ns, and a light yield of ~738.14 pe/MeV. This YCl3-mediated growth strategy establishes an efficient approach for the solution-based synthesis of high-quality Cs3Cu2I5single crystals, holding great significance for advancing high-sensitivity, environment-stable radiation detection applications such as medical diagnostics and nuclear safety monitoring.
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Materials Today Physics
·
2026
·
IF 9.3
Zi-long Zhang,Yu-ji Wu,Zhuo-ming Xu,Chun-lu Wu,Ning Chen,Rafique Azam,Mazhar Hussain Danish,Fu Li,Guang-xing Liang,Yue-Xing Chen,Zhuang-Hao Zheng
Re doping coordinates electrical and thermal transport in Cu/Br co-doped SnSe 2 . • Re secondary phases and associated lattice distortion enhance phonon scattering. • The 0.75% Re-doped sample achieves a peak z T of ∼0.78 at 773 K. Transition-metal doping is considered as an effective strategy to improve the thermoelectric performance of SnSe 2 -based semiconductors, since it can simultaneously optimize electronic transport and phonon scattering. Herein, Re was introduced into the Sn-rich Cu/Br co-doped SnSe 2 (SCSB) system. Microstructural characterizations reveal partial Re incorporation into the SnSe 2 lattice together with Re precipitates, while first-principles calculations using a hypothetical Re-for-Cu substitution configuration show a reduced band gap and enhanced DOS accumulation around the band edges, suggesting favorable electronic-structure modulation. Finally, the 0.75% Re-doped SCSB sample achieves a peak zT of ∼0.78 at 773 K, reaching a competitive level among reported n-type SnSe 2 -based thermoelectric materials prepared by solid-state reaction and spark plasma sintering procedure. This work demonstrates that transition-metal doping is an effective and facile strategy for the synergistic optimization of electrical and thermal transport in SnSe 2 -based systems. Download: Download high-res image (418KB) Download: Download full-size image
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ACS Applied Materials & Interfaces
·
2026
·Vol. 18
·期 32
·44080-44092
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IF 7.8
Sun Mingze,Zhu Dongwei,Lou Yan,Yin Chunhao,Liang Mengxin,Song Ao,Niu Mengmeng,Li Tiezhu,Huang Yibing,Luo Quan
Pesticide residues with diverse toxicities and synergistic effects demand rapid, multiplexed discrimination methods beyond conventional single-analyte assays. Here, we report a machine-learning-enhanced three-channel colorimetric sensor array based on Cu-Pt bimetallic nanozymes for multi-class pesticide fingerprint recognition. The single CuPtBN receptor integrates oxidase-, laccase-, and superoxide dismutase-like activities, generating three orthogonal optical response channels that capture differential inhibition and promotion effects from structurally similar pesticides. By coupling these multidimensional signals with “classification-regression” dual-loop machine learning models, the platform achieves concentration-independent qualitative identification and precise quantitative prediction, with 100% classification accuracy for nine representative pesticides and reliable predictive capability for nonlinear-response analytes. In blind tests and real agricultural samples, the system accurately identified pesticide species with prediction errors below 5% and recoveries of 85−105%. This work establishes a simplified yet information-rich multichannel nanozyme sensing strategy, highlighting its promise for high-throughput food safety screening and intelligent agrochemical monitoring.
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ACS Applied Energy Materials
·
2026
·
IF 5.5
Yu Huan,Li Haoran,Sun Shichao,Wang Xin,Chen Zhongwei
Rechargeable aqueous Zn metal batteries have emerged as compelling options for grid-scale energy storage applications, benefiting from a favorable combination of economic viability, operational safety, and excellent rate performance. The lifespan and Coulombic efficiency (CE) of Zn metal anodes (ZMAs) are constrained by dendrite growth and side reactions. Herein, we report a freestanding host for ZMAs based on N-doped thorn-like carbon fibers derived from a covalent organic framework (COF) and embedded with Cu nanoparticles (COF-NCF@Cu). The 3D macroporous architecture with thorn-like COF-derived N-doped carbon nanoarrays contributes to reduced current density and effectively mitigates electrode volume variation throughout cycling. Furthermore, the zincophilic Cu nanoparticles embedded in the N-doped carbon matrix provide homogeneous nucleation sites that significantly lower the overpotential for zinc nucleation, thereby promoting subsequent uniform zinc deposition. Accordingly, the COF-NCF@Cu host delivers exceptional reversibility, affording stable Zn plating/stripping for over 2800 h at 10 mA cm –2 , and the corresponding full cell with a COF-NCF@Cu-Zn anode sustains 6000 cycles with negligible capacity decay.
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ACS Catalysis
·
2025
·
IF 13.1
Yong Tang,Yongqi Zeng,Chunyu Wang,Zhi Wang,Danning Zhao,Chuang Du,Fengxi Li,Lei Wang
The enzymatic Diels–Alder reaction presents an environmentally appealing strategy for synthesizing chiral norbornene scaffolds. In this study, an artificial Diels–Alderase was constructed by incorporating a biotinylated Cu-phenanthroline cofactor (5-NH2Phen-biotin*Cu(NO3)2) into streptavidin and optimizing the enzyme through genetic engineering. The S112D variant of this artificial Diels–Alderase exhibited commendable catalytic performance, facilitating highly enantio- and regioselective Diels–Alder reactions. Employing this method, we synthesized a series of norbornene pyridones with broad substrate scopes and good functional group tolerance under mild conditions, achieving high yields along with good enantio- and regioselectivities. Molecular dynamics (MD) simulations provided insights into the critical complex intermediates involved in the proposed reaction mechanism and clarified the interactions between the Diels–Alderase and its substrates, revealing the structural basis for the generation of the predominant norbornenepyridone conformation and the enhanced selectivity observed with the S112D mutant. Furthermore, quantum mechanics/molecular mechanics (QM/MM) calculations analyzed the reaction energy barriers of possible transition states, elucidating the reason for the formation of the target product from an energetic perspective.
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CHEMICAL ENGINEERING SCIENCE
·
2025
·
IF 4.3
Bihong Li,Yijie Ding,Weizhong Zheng,Weizhen Sun,Ling Zhao
Zeolites have emerged as the highly potential solid catalysts in isobutane (C4) alkylation due to their adjustable acidity and structural properties. The introduction of rare earth metal or transition metal can effectively regulate the acidic site distribution and strength of beta zeolite. The structural stability, acid properties and catalytic performance of low Si/Al ratio beta zeolites functionalized with various lanthanum and copper loadings are systematically investigated for the C4 alkylation through experimental characterization and catalytic evaluation. It is revealed that the optimal metal loading can impart superior acidic properties to beta zeolites. Lanthanum modification increases the total amount of Brønsted acid sites (BAS), and enhances the population of moderate and strong BAS compared to copper modification. Catalytic evaluation demonstrated that copper-modified beta zeolites achieve a higher research octane number (RON) up to 93 for alkylate, but exhibit a shorter catalyst lifetime. Lanthanide-modified counterparts exhibit a catalytic lifetime of 320 min and 65 wt% trimethylpentane (TMPs) selectivity with relatively stable RON of 90 during a prolonged stable operation, and meanwhile, the optimal lanthanide-modified HB-1 zeolites (0.35 wt% La@HB-1) demonstrate high level of catalytic lifetime and TMPs selectivity after three cycle experiment. The information obtained from this work will contribute to a better understanding of the metal-modified low-Si/Al-ratio beta zeolites for catalyzing the C4 alkylation.
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CRYSTENGCOMM
·
2025
·
IF 2.6
Lei Chen,Rui Xu,Zhi Yang,Fuyu Chang,Lu Yang,Yoonseop Byun,Eunsoo Song,Eungyeong Park,Lihui Liu,Young Mee Jung
The two-dimensional (2D) layered structure of MXene provides a large specific surface area, making it an ideal platform for optimizing geometric configurations in surface-enhanced Raman scattering (SERS) applications. In this study, we developed a novel ternary core-shell nanostructure, Ag@Cu2O-MXene, in which Ag@Cu2O core-shell nanoparticles (NPs) are uniformly anchored onto 2D Ti3C2Tx MXene nanosheets. The Ag NPs exhibit strong localized surface plasmon resonance, while the narrow bandgap and high electron mobility of Cu2O shell promote efficient charge transfer. Importantly, plasmonic coupling between the Ag core and the MXene substrate further enhances plasmon absorption, resulting in a substantial increase in SERS activity and enabling highly sensitive molecular detection. Using this composite, we achieved an ultra-low detection limit of 10–9 M for methylene blue. MXene substrate further facilitates rapid electron transfer from the Ag core to the the Cu2O shell, while its surface defects contribute additional charge carriers to Cu₂O, enhancing the utilization of photogenerated electron. Notably, the SERS enhancement was positively correlated with the thickness of Cu2O shell, highlighting the tunable nature of the Ag@Cu2O-MXene core-shell nanostructure.
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JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
·
2013
·Vol. 51
·期 7
·1559-1564
·
IF 3.543
Xiao-Hui Liu,Yun-Hai Yu,Di Jia,Bo-Wen Cheng,Fei-Jun Zhang,Hui-Na Li,Peng Chen,Shan Xie
Single electron transfer living radical polymerization of methyl methacrylate catalyzed by the in situ prepared Cu(0) at ambient temperature was first examined using various metallic powders, including Zn(0), Ni(0), Mg(0), and Fe(0). Importantly, the polymerization initiated with Ni(0)/EBiB/CuBr 2 /PMDETA system exhibited optimal living/controlled nature and generated polymers with polydispersity index as low as 1.04 for 75.27% conversion and controlled molecular weights close to theoretical ones. A wide of range of Cu(II) salts were also investigated as catalyst sources instead of CuBr 2 . The recycling of Ni(0) was very convenient due to its magnetic property, which enables its extensive application. © 2013 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013
研究领域:
高分子化学
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材料科学
·
催化化学
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有机合成
·
功能材料
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RSC Advances
·
2017
·Vol. 7
·期 40
·25101-25108
·
IF 3.108
Jingfang Zhu,Liyun Wu,Jingjing Li,Bin Liu,Zhixiang Zeng
In this study, we created a robust and stable nanostructure coated on the surface of a stainless steel mesh via the electrodeposition of copper thin films and chemical modification with polydimethylsiloxane (PDMS) to enhance the mechanical durability of the stainless steel mesh surface with superhydrophobic performance. The obtained stainless steel mesh was tested by immersion in solutions of different pH values and abrasion cycling tests with sandpaper. The results showed that the coated stainless steel mesh retained excellent superhydrophobic and superoleophilic properties. Using the superhydrophobic and superoleophilic stainless steel mesh, we achieved the recycling of oil automatically and continuously via a vacuum pump.
研究领域:
材料科学
·
环境工程
·
表面化学
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Science China-Materials
·
2026
·
IF 7.7
He Jiaman,Kang Liwen,Zeng Weigang,Shi Wanxin,Ling Qidan,Lin Zhenghuan
Organic-inorganic hybrid metal halides (OIMHs) based on Cu(I) ions show broad application prospects in the field of stimulus-responsive luminescent materials based on their rich structural diversity and highly adjustable electronic state. However, achieving sensitive and broad-temperature-range thermal responses for OIMHs remains a significant challenge, despite the growing interest in smart luminescence materials. In this study, 4-morpholinopiperidine (4-MP) and CuI are used to synthesize a zero-dimensional warm white-light emitting OIMH, namely MPC-W ((C 9 H 20 N 2 O) 4 (Cu 2 I 4 )(Cu 2 I 6 )(H 2 PO 2 ) 2 ), which features hybrid structures of [Cu 2 I 4 ] 2− and [Cu 2 I 6 ] 4− . Owing to the coexistence of three luminescent mechanisms-organic cluster luminescence (CL), self-trapped exciton (STE) emission of [Cu 2 I 6 ] 4− , and cluster-centered (CC) state luminescence of [Cu 2 I 4 ] 2− , MPC-W exhibits temperature and excitation wavelength-dependent dynamic luminescence. When the temperature is increased from 77 to 297 K, the luminescence color of MPC-W can be continuously tuned from blue to cyan, green, yellow-green, and white. In the range of 217–463 K, MPC-W displays an abnormal luminescence enhancement phenomenon with increasing temperature. Additionally, upon chemical stimulus, MPC-W can reversibly transform into a blue-light emitting crystal named MPC-B ((C 9 H 20 N 2 O)Cu 2 I 4 ), and a yellow-light emitting crystal named MPC-Y ((C 9 H 18 N 2 O) 7 Cu 8 I 8 ). These unique dynamic luminescent properties endow MPC-W with great application potential in temperature sensing, optical anti-counterfeiting, and password locks. The work provides a new insight for the development of novel wide temperature-responsive multifunctional intelligent luminescent materials.
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FOOD CHEMISTRY
·
2026
·
IF 10.4
Siyu Wen,Jiale Cheng,Zuting Yan,Yiru Wang,Yongwei Shi,Yuhan Sun
The lack of rapid, user-friendly methods for alternariol (AOH), a prevalent emerging mycotoxin, presents a considerable analytical challenge. This work introduces an integrated sensing strategy advancing from classical homogeneous liquid-phase detection to a portable AI-enhanced paper-based biosensor. The system employed a Cu/Mn-CeO 2 nanozyme as signal generator and amplifier, and exploited the inhibitory effect of AOH on acetylcholinesterase (AChE) to suppress the thiocholine (TCh)-mediated reduction of oxidized 3,3′,5,5′-tetramethylbenzidine (oxTMB), enabling quantitative colorimetric readout. It achieved ultra-sensitive detection in the liquid phase with a limit of detection (LOD) of 0.016 pg/mL. By incorporating an aptamer affinity column for sample cleanup, the assay was transferred to a foldable paper platform. An AI-driven Monte Carlo color analysis method addressed issues of color heterogeneity and subjective interpretation, yielding an LOD of 0.12 μg/kg in wheat. This study provides a point-of-need solution for AOH screening and establishes a generalizable framework for detecting contaminants in complex samples.
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Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 14
·4045-4053
·
IF 7
Zhaoguo Hong,Xin You,Jingjing Zhong,Di Yao,He-Dong Bian,Shulin Zhao,Liangliang Zhang,Hong Liang,Fu-Ping Huang
Chemodynamic therapy (CDT), in which highly toxic hydroxyl radicals (˙OH) could be triggered by a Fenton or Fenton-like reaction to kill cancer cells, has emerged recently. Compared to traditional CDT nanomaterials, herein, an atomically-precise biotinylated Cu(I/II) complex [CuICuIICl2(VBio)]·CH3OH (VBio = deprotonated O-vanillin biotinylhydrazone), denoted VBio-CuICuII, was rationally designed and synthesized successfully. This targeted Fenton-like agent, VBio-CuICuII, is constructed from a hydroxyl radical-producible CuI ion, a CuII center as a GSH depletor for an augmented CDT effect, and a biotin moiety as a cancer-targeting unit. Owing to the obvious cell selectivity discrepancy of biotin towards normal and cancerous cells, VBio-CuICuII was able to preferentially accumulate in tumor cells. Meanwhile, the CuI metal center could be used as a Fenton-like agent to generate ˙OH. Furthermore, the CuII in VBio-CuICuII was available for successive ˙OH production via a CuI/CuII-circulation strategy under a GSH-rich tumor site, thereby improving catalytic efficiency. More importantly, in vivo results further demonstrate that VBio-CuICuII could significantly inhibit tumor growth without obvious damage toward major organs. Therefore, this multiple-identity Fenton-like agent could provide an appreciable reference value for the design of atomically precise CDT agents.
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