Journal of Energy Storage
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2026
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IF 10.7
Shang Wu,Qiyue Tong,Huize Zhang,Zhenyang Yu,Chenxu Zhu,Qiong Su,Hong Zhang,Guihua Li,Xiaojun Yang,Juzhen Kang,Quanlu Yang
NH 2 -UIO-66 has been regarded as a promising porous material owing to its high specific surface area and structural stability, although its limited conductivity restricts its application in supercapacitors. In this work, a NiCo 2 S 4 /NH 2 -UIO-66 nanoflower composite (NCS/NU) was synthesized via a vulcanization process with thioacetamide. Electrochemical measurements conducted in a three-electrode system revealed that the composite delivered a specific capacitance of 172.4 mAh g −1 at 1 A g −1 and maintained 82.1% of its initial capacitance after 5000 cycles at 5 A g −1 . Morphological characterization indicated that the nanoflower architecture was largely preserved after sulfurization. The in-situ formed NiCo 2 S 4 contributed to enhanced pseudocapacitance and induced surface wrinkling of the petals, which helped stabilize the composite structure supported by NH 2 -UIO-66. For the anode, S and N co-doped three-dimensional porous carbon (SNC) was prepared via a sol-gel method followed by stepwise high-temperature carbonization using ammonium persulfate as the activator. A hybrid supercapacitor was subsequently assembled with the NCS/NU as the positive electrode and SNC-700 as the negative electrode. The device delivered an energy density of 28.8 Wh kg −1 and retained 74.1% of its initial capacitance after 5000 charge-discharge cycles.
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Science Advances
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2026
·Vol. 12
·期 13
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IF 13.9
Yuxiang Zhan,Kunpeng Zhao,Hexige Wuliji,Yifan Yuan,Xiang Liu,Tian-Ran Wei,Ting Zhang,Min Zhu,Xun Shi
(Ag,Cu) 2 (S,Se,Te) alloys, as rare examples of p-type inorganic ductile semiconductors, have emerged as promising candidates for wearable electronics because of their mechanical flexibility and favorable processability. However, the multicomponent nature of this system introduces diverse microstructures and intricate defect landscapes that complicate the optimization of thermoelectric performance. Here, we reveal the presence of compositionally inhomogeneous yet structurally coherent nanoscale chemical fluctuations within this alloy system. These fluctuations, together with abundant dislocations and twin boundaries, serve as efficient phonon scattering centers to suppress the lattice thermal conductivity to approach glass-like levels. Concurrently, tuning the cation ratios and vacancies allows for precise control over the carrier concentration and thereby leads to enhanced power factors. Last, a peak zT of 0.98 at 360 kelvins is achieved, marking a record for Ag-based ductile thermoelectrics. This study highlights the essential role of chemical fluctuations in modulating phonon and charge transports and offers valuable insight into the microstructure-defect–property interplay in ductile materials.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Yuan-Yuan Feng,Hua-Shuai Hu,Jin Liu,Zi-Heng Liu,Dan Zhang,Dong-Xing Tan
● S,Fe-NiFeO x H y /NF shows an ultra-low OER overpotential of 305 mV at 1000 mA cm −2 . ● The catalyst exhibits a promising stability for over 40 h without activity decay. ● The total preparation process of S,Fe-NiFeO x H y /NF electrocatalyst only takes 6 min. ● The high performance stems from electronic interactions among S, Fe and NiFeO x H y . Water electrolysis is considered an ideal route for producing high-purity hydrogen, yet its widespread application remains severely constrained by the anodic sluggish oxygen evolution reaction (OER). Herein, we present a high-performance S,Fe-NiFeO x H y /NF electrocatalyst for OER that markedly reduces the overpotential of OER to 196 mV at the benchmark current density of 10 mA cm −2 . Even at high current densities of 500 and 1000 mA cm −2 , the overpotentials are only 291 and 305 mV, respectively, outperforming most previously reported Ni/Fe-based catalysts. The catalyst also exhibits promising long-term stability, maintaining a high current density of 500 mA cm −2 for over 40 h without activity decay. Notably, the entire catalyst preparation takes just 6 min, and this cost-effective and facile synthetic strategy is key to enabling practical water electrolysis. Our findings open up a new avenue for developing non-noble metal catalysts with both high activity and durability for water electrolysis. Download: Download high-res image (267KB) Download: Download full-size image
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Ruyue Zheng,Shaohong Guo,Jingyi Wang,Jinhua Yang,Jingchun Jia,Ying Chang,Meilin Jia,Jiang Wang
A sulfide–sulfide ZnIn 2 S 4 /ZnS heterojunction establishes an S-scheme charge-transfer pathway with intimate interfacial coupling. • Ce act as additional regulation centers to modulate interfacial electronic structure and carrier dynamics. • The S-scheme charge-transfer mechanism is supported by XPS, KPFM, DFT calculations, and ultrafast spectroscopy. • Ce-mediated electronic regulation synergistically enhances CO 2 adsorption, activation, and surface reduction kinetics. • The optimized C2ZZ2 catalyst achieves 140.6 μmol g −1 h −1 CO production through coordinated interface and electronic regulation. Solar-powered photocatalytic CO 2 reduction represents a promising strategy for achieving carbon neutrality through sustainable solar-to-chemical energy conversion. Nevertheless, inefficient charge separation and sluggish interfacial reaction kinetics markedly limit its performance. Herein, Ce-regulated ZnIn 2 S 4 /ZnS S-scheme heterojunctions were synthesized via a facile one-step in situ hydrothermal strategy to regulate interfacial charge transfer and surface reaction processes. The ZnIn 2 S 4 /ZnS interface establishes an S-scheme charge-migration pathway, facilitating directional migration and utilization of photogenerated carriers, while Ce incorporation induces electronic redistribution and modulates the local electronic environment. Experimental investigations combined with theoretical calculations reveal that Ce-mediated electronic modulation cooperates with the S-scheme heterointerface to strengthen CO 2 adsorption, accelerate interfacial charge transfer, and reduce the energy barrier of CO 2 reduction. Benefiting from this synergistic electronic regulation, the optimized C2ZZ2 catalyst achieves a CO evolution rate of 140.6 μmol g −1 h −1 , approximately 4.5-fold higher than pristine ZnIn 2 S 4 . This work provides mechanistic insights into rare-earth-mediated electronic regulation in metal sulfide photocatalysts, offering a deeper understanding of the relationship among electronic modulation, interfacial charge-transfer dynamics, and CO 2 reduction kinetics. An S-scheme heterojunction, in which ZnS nanospheres are anchored to a defect-containing cerium-doped ZnIn 2 S 4 micro-flowers structure (CxZZy composite), was synthesized via a one-step in situ solvothermal method. This material exhibits outstanding CO 2 catalytic performance under visible light irradiation. Download: Download high-res image (118KB) Download: Download full-size image
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ACTA PHYSICO-CHIMICA SINICA
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2025
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IF 13.5
Wenlong Wang,Wentao Hao,Lang He,Jia Qiao,Ning Li,Chaoqiu Chen,Yong Qin
S-scheme heterojunctions have garnered significant interest in photocatalytic CO 2 conversion to valuable products (e.g., CH 4 ) due to their enhanced charge separation and robust redox capabilities. Carbon dots (CDs), with their tunable band structures and light absorption ranges, show particular promise in constructing efficient S-scheme photocatalytic systems. Nevertheless, the critical roles of CDs' band alignment and surface adsorption properties in determining heterojunction configuration, charge carrier kinetics, and ultimately CO 2 activation/product selectivity distribution remain insufficiently explored. Herein, we construct four CDs/TiO 2 heterojunctions using CDs synthesized from varied carbon sources, in which S-scheme heterojunctions were successfully constructed based on cost-effective coal pitch (C-GQDs, 1.75 nm), glucose (G-CQDs, 1.84 nm), and acetone (CQDs-X, 1.82 nm) carbon sources, whereas Type-I heterojunctions were formed by carbon black based CDs (GQDs-A, 1.92 nm). Systematic investigations reveal that both the band structure and adsorption characteristics of CDs play important roles in the charge transfer path and separation efficiency, CO 2 adsorption and activation capacities, and product selectivity in photocatalytic CO 2 reduction. Remarkably, the introduction of CDs significantly broadens the photo-response range compared to fresh TiO 2 , and in particular, the C-GQDs/TiO 2 exhibits exceptional performance with a CH 4 production rate of 32.7 μmol·g −1 ·h −1 , surpassing TiO 2 by 6.3-fold and outperforming GQDs-A/TiO 2 , CQDs-X/TiO 2 , and G-CQDs/TiO 2 by factors of 3.8, 2.7, and 2.3, respectively. This heterojunction simultaneously achieves 72.6 % CH 4 selectivity and 98.1 % hydrocarbons selectivity (encompassing CH 4 , C 2 H 6 , C 2 H 4 , and C 3 H 8 ). In contrast, composites incorporating GQDs-A, CQDs-X, or G-CQDs exhibit substantially diminished CH 4 selectivity (<40.0 %). The high CH 4 production rate and selectivity of C-GQDs/TiO 2 can be attributed to its unique S-scheme heterojunction structure, higher reduction potential, and well-matched CO 2 and H 2 O adsorption and activation capabilities. This study provides unique insights into the efficient photoreduction of CO 2 to CH 4 driven by the S-scheme heterojunction electron transfer pathway in CDs/TiO 2 photocatalysts.
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APPLIED SURFACE SCIENCE
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2025
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IF 6.9
Cheng Yang,Xinyue Yang,LiXun Feng,ZiJian Chen,Jia He,HuiTing Sui,Huajun Sun
Piezoelectric photocatalysis is emerging as a promising approach for green environmental protection. Herein, a molybdenum disulfide/graphitic carbon nitride S-scheme heterojunction catalyst achieved a Rhodamine B degradation rate exceeding 99 % within 30 min under the synergistic effects of light and ultrasound, along with a hydrogen (H 2 ) production rate of 16.2 mmol g −1 h −1 . The synergy of ultrasound and light improved catalytic efficiency by approximately 45 % compared with light alone. Experimental characterizations, including Kelvin probe force microscopy, in situ X-ray photoelectron spectroscopy, and density functional theory calculations, confirmed the presence of dual built-in electric fields arising from band alignment and strain-induced polarization. These fields facilitated efficient electron–hole separation, thereby greatly enhancing the overall piezoelectric photocatalytic performance and resulting in efficient use of mechanical and solar energy for H 2 production and pollutant decomposition.
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Green Energy & Environment
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2025
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IF 14.6
Xiaoxia Ye,Bingqing Huang,Xueying Chen,Yaping Wang,Zhihong Zheng,Yifan Liu,Yuancai Lv,Chunxiang Lin,Jian Huang,Jie Chen
The extraction of uranium from seawater via membrane adsorption is a promising strategy for ensuring a long-term supply of uranium and the sustainability of nuclear energy. However, this approach has been hindered by the longstanding challenge of identifying sustainable membrane materials. In response, we propose a prototypal hybridization strategy to design a novel series of conjugated microporous polymer (CMPO)@collagen fiber membrane (COLM), as decorated with multiple functional groups through an amination. These sustainable and low-cost membrane materials allow a rapid and high-affinity kinetic to capture 90% of the uranium in just 30 min from 50 ppm with a high selectivity of K d > 10 5 mL·g -1 . They also afford a robustly reusable adsorption capacity as high as 345 mg·g -1 that could harvest 1.61 mg·g -1 of uranium in a short 7-day real marine engineering in Fujian Province, even though suffered from very low uranium concentration of 3.29 μg·L -1 and tough influence of salts such as 10.77 g·L -1 of Na + , 1.75 μg·L -1 of VO 3 - etc in the rough seas. The structural evidence from both experimental and theoretical studies confirmed the formation of favorable chelating motifs from the amino group on CMPN, and the intensification by the synergistic effect from the size-sieving action of CMPN and the capillary inflow effect of COLM.
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NEW JOURNAL OF CHEMISTRY
·
2025
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IF 2.5
Rong Li,ZhiHui Hao,Xiangwei Zhao,Huilin Zhou,Zhimin He,Qin Dong,Wei Hong,Xinglong Gou
Metal sulfides, such as SnS2, have been extensively studied as separator modifiers in lithium–sulfur batteries (LSBs) owing to their dual functionality in chemically anchoring lithium polysulfides (LiPSs) and catalytically facilitating redox reactions. Nevertheless, poor electrical conductivity and limited catalytic efficiency restrict their practical implementation for LiPS transformation kinetics. To address these issues, we prepared Mo-doped SnS2 (Mo–SnS2) nanosheets with sulfur vacancies through a rapid one-pot formamide-assisted method. The incorporation of Mo heteroatoms not only improves conductivity but also induces favorable sulfur vacancies, synergistically promoting both adsorption and electrocatalytic conversion of LiPSs. The Li–S cell with a Mo–SnS2 nanosheet-modified separator delivers a remarkable initial capacity of 1007.5 mAh g−1 at 1C, maintains 799.5 mAh g−1 after 600 cycles with a low fading ratio of 0.034% per cycle, and demonstrates a favorable rate performance of 591.9 mAh g−1 at 5C. This defect engineering strategy through heteroatom doping offers a promising approach to concurrently mitigate the polysulfide shuttle effect and enhance the reaction kinetics in sulfur-based energy storage systems.
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Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Peng Qiao,Jianwei Zhang,Wenyi Wang,Yijie Lin,Meiru Zheng,Xin Guo,Yibo Liu,Yuanyuan Wang,Jiaojing Zhang,Hua Song,Xueqin Wang
Developing semiconductors with optimal bandgaps and enhancing their photocatalytic performance remain key challenges in achieving efficient hydrogen evolution from water splitting. TiO 2 nanoflowers with open architectures, which provide abundant active sites, show significant potential in this field. Additionally, the construction of photocatalysts using S-scheme heterojunctions has been proven to improve redox capacity, while the introduction of oxygen vacancies has been shown to increase efficiency. Therefore, in this study, NiS-loaded TiO 2 nanoflowers were fabricated by a simple template-free solvothermal method. Oxygen vacancies were constructed by partially reducing the composite with a low NiS concentration. The synergistic effect of the oxygen vacancies and heterojunctions greatly improved the visible-light response of the catalyst, and the degradation rate of rhodamine B reached 99.81 % in 3 h under visible light. The transient photocurrent response of 1.0 wt% NiS-TiO 2 nanoflowers was 47.52 μA·cm −2 and the rate of hydrogen evolution achieved 1782.28 μmol·g −1 ·h −1 , approximately 6.5 times higher than that of pristine TiO 2 nanoflowers. The transfer process of electrons was verified by calculation using density functional theory, and an electron transport mechanism for the S-scheme heterojunction is also proposed to illustrate the photocatalytic mechanism. The as-prepared NiS-loaded TiO 2 nanoflowers could be prime candidate for the photocatalytic hydrogen evolution from water splitting and degradation of organic pollutants.
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Molecular Catalysis
·
2025
·
IF 4.9
Shi-Yu Zhang,Jun-Yi Yang,Yang Yan,Li-Xin Kang,Ai-Tao Li,Jian-He Xu,Gao-Wei Zheng,Qi Chen
Halide methyltransferases (HMTs) can efficiently catalyze the biosynthesis of S -adenosyl methionine (SAM) using natural substrates like methyl iodide or environmentally friendly alternatives such as methyl p-toluene sulfonate (MeOTs). Leveraging their broad substrate promiscuity, HMTs can also accommodate long-chain alkyl iodides and sulfonate esters, thereby facilitating the enzymatic production of structurally diverse SAM analogues. To address the limitations of existing S -adenosyl-ethionine (SAE) synthesis routes that depend on toxic alkyl halides like ethyl iodide, we developed a sustainable enzymatic strategy using ethyl p-toluene sulfonate (EtOTs) as the ethyl donor. Through a proximal-to-distal molecular engineering strategy, we systematically engineered wild-type Aspergillus clavatus halide methyltransferase ( Ac HMT) to enhance its catalytic properties. Following multiple rounds of semi-rational design, the mutant Ac HMT M4 exhibited a 6.0-fold increase in specific activity toward EtOTs compare to the wild-type, reaching 0.30 mU mg −1 , which represents the highest catalytic efficiency reported to date for this substrate. Molecular dynamics simulations subsequently revealed the structural mechanism of the improved catalytic activity. Biosynthesis of ethyl vanillin was achieved through a designed dual-enzyme cascade reaction. This work provides a universal strategy for engineering HMT to utilize sulfonate ester substrates, and an efficient biocatalyst for green synthesis of SAE for further ethyl modification of functional molecules.
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BIOMACROMOLECULES
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2025
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IF 5.4
Pingge Jiang,Yaxuan Wang,Qiong Wu,Ziyue Wang,Chengfan Wu,Qi Shuai,Yunfeng Yan
Polymer-based nanocarriers hold promise for nucleic acid delivery, yet the clinical translation of mRNA polymeric carriers remains hindered by insufficient delivery efficiency and cytotoxicity. Here, we synthesized 180 diselenide-containing poly(β-amino ester)s (PBAEs) via Michael addition. In vitro screening identified PBAEs with superior mRNA delivery efficiency, showing that hydrophobic amine backbones with ionizable cationic amine end-capping are critical. The effective mRNA-PBAE polyplex nanoparticles (PNPs) exhibited moderate positive charge, suitable size, potent cellular uptake, and endosomal escape. Compared with analogs lacking diselenide bonds, diselenide-containing PBAEs demonstrated robust redox responsiveness and formed PNPs with similar mRNA binding and size, but reduced internal hydrophobicity and improved cellular uptake, mediating potent mRNA delivery. Tail vein injection of diselenide-containing PNPs achieved robust splenic-targeted delivery in mice without helper lipids, unlike the lung-targeted delivery of conventional PBAEs. These findings highlight a novel diselenide-containing PBAE platform for effective mRNA delivery, which has great potential in mRNA-based immunotherapeutic applications.
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高影响因子
Molecular Catalysis
·
2025
·
IF 4.9
Yaping Liu,Chao Pan,Xiaomin Qiu,Hailin Zhang,Haijun Feng,Yubao Tang,Zhijie Shang,Hongbing Song
The conversion of readily accessible chemicals into high-value-added products is a key process in industrial chemistry. This research showcases an efficient transformation of benzyl alcohol to benzaldehyde utilizing poly(ionic liquid)s (PILs) supported Pd-based catalysts. The catalyst’s properties were thoroughly characterized using FT-IR, SEM, TEM, XPS, and TG, confirming the successful fabrication of stable Pd/PILs catalysts. The porous architecture of the PILs material enhances palladium nanoparticle adhesion, while its structure promotes intimate contact between the catalyst and substrate, facilitating the oxidation process. With just 0.1 g of 1 % Pd/PIL-2 catalyst, the reaction at 110 °C, 4 MPa O 2 for 4 h achieve a 82.16 % conversion of benzyl alcohol with absolute selectivity to benzaldehyde. Theoretical calculations elucidated the interactions between Pd 6 clusters, PIL, and benzyl alcohol. Furthermore, the Fukui function and optimized electrostatic potential diagrams identified reactive sites, providing insights into the potential reaction mechanism.
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