ACS Applied Energy Materials
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2025
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IF 5.5
Yunyun Lin,Wenbo Li,Yuanyuan Cui,Yaying Li,Haifeng Wang,Qi Xiao,Wei Luo
Monolithic photocatalysts present a transformative paradigm to reconcile the activity-stability-recovery trade-off inherent in conventional powder systems for photocatalytic hydrogen evolution. This study demonstrates a low-temperature synthesis of mesoporous Pt/Cu/TiO2–N catalysts in situ grown on frosted glass (Pt/Cu/TiO2–N/FP), where nitrogen doping amplifies Ti–O–Ti vibrational coupling and the hierarchical mesostructure creates sufficient active sites. The engineered Pt–Cu dual-cocatalyst system achieves exceptional synergy: Pt nanoparticles drive proton reduction while Cu2+ species prolong charge carrier lifetime through the Cu2+/Cu+ redox cycle, collectively enabling light absorption to the visible range. With optimized dual cocatalyst decoration (1.1 wt % Pt, 0.3 wt % Cu2+), the monolithic mesoporous architecture delivers a stable hydrogen evolution rate of 187.1 μmol h–1. Importantly, our mild fabrication strategy (NH3 treatment at 100 °C, Cu2+ grafting at 60 °C) establishes a generalizable protocol for temperature-sensitive substrate functionalization. This work pioneers a dual-engineering approach combining substrate-compatible synthesis with electronic structure modulation, offering a pathway toward industrially viable solar hydrogen reactors.
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2016
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IF 3.349
Yan He,Qinqin Liu,Fei Liu,Chensheng Huang,Changjun Peng,Qiang Yang,Hualin Wang,Jun Hu,Honglai Liu
A triazine and thiophene bifunctionalized task-specific porous organic polymer with N and S atoms (TSP-NS) was synthesized from a simple one-step Friedel-Crafts reaction. The resulting novel porous polymer was determined to be highly effective in removing Cu (II) from aqueous solution. The maximum adsorption capacity , q max , evaluated from the Langmuir model was 98.33 mg g −1 . Moreover, the combination of experimental FTIR results and the theoretical quantum calculation demonstrated that the N and S heteroatoms of the bifunctionalized TSP-NS could easily form coordination complexes with Cu (II), which were responsible for efficient adsorption. The generated TSP-NS could be regenerated effectively and recycled at least five times without significant loss of adsorption capacity. Therefore, the convenience and low cost of synthesis, as well as the excellent adsorption capacity and reusability , made bifunctionalized polymer TSP-NS an attractive adsorbent for removing toxic metal ions from aqueous solution.
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高影响因子
WATER SCIENCE AND TECHNOLOGY
·
2022
·Vol. 87
·期 2
·492-507
·
IF 2.43
Jiang Yu,Liu Xinyu,Huang Shikai,Wu Huifang,Liu Haiyan,Liu Shenzhe,Xu Jiale,Wang Kun
In this study, magnetic biochar (Fe-BC) was synthesized from phoenix tree leaves and FeSO 4 ·7H 2 O by impregnation-pyrolysis method, and was used to activate H 2 O 2 to degrade Cu-EDTA. The effects of preparation parameters on the degradation of Cu-EDTA by Fe-BC/H 2 O 2 system were investigated by degradation experiments and characterization methods (SEM, BET, FTIR, XRD and XPS). The results showed that the magnetic biochar prepared under the pyrolysis temperature of 400 °C, pyrolysis time of 3 h and iron content of 3 wt% had the best catalytic activity. Within 120 min, the breaking efficiency of Cu-EDTA binding, precipitation efficiency of Cu 2+ and removal efficiency of TOC could reach 78.48, 71.65 and 46.54% at the conditions of adding 1.0 g/L magnetic biochar and 25 mM H 2 O 2 and the iron dissolution was only 0.32 mg/L. The characterization results and comparison experiments demonstrated that the catalytic effect of magnetic biochar not only depends on the transfer of electrons to H 2 O 2 by the loaded iron oxides, but also the active oxygen functional groups (OFGs) and persistent free radicals (PFRs) contained on the surface can transfer electrons to H 2 O 2 or even dissolved oxygen to produce an amount of hydroxyl radicals ( · OH) and superoxide anion radicals ( ). The use of phoenix tree leaves as the precursor of magnetic biochar provides a new method for the disposal of garden waste, which is in accord with the concept of green and sustainable development. In the degradation system, the magnetic biochar catalyst relies on the OFGs and PFRs of biochar and the metal components loaded to activate H 2 O 2 to generate reactive oxygen species to degrade organic pollutants.
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高影响因子
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
·
2016
·
IF 1.34
Ai-ling YANG,Shun-pin LI,Yu-jin WANG,Le-le WANG,Xi-chang BAO,Ren-qiang YANG
Cu 2 O@Cu 2 O core-shell nanoparticles (NPs) were prepared by using solution phase strategy. It was found that Cu 2 O@Cu 2 O NPs were easily converted to Cu 2 O@Cu NPs with the help of polyvinylpyrrolidine (PVP) and excessive ascorbic acid (AA) in air at room temperature, which was an interesting phenomenon. The features of the two kinds of NPs were characterized by XRD, TEM and extinction spectra. Cu 2 O@Cu NPs with different shell thicknesses showed wide tunable optical properties for the localized surface plasmon (LSP) in metallic Cu. But Cu 2 O@Cu 2 O NPs did not indicate this feature. FTIR results reveal that Cu + ions on the surface of Cu 2 O shell coordinate with N and O atoms in PVP and are further reduced to metallic Cu by excessive AA and then form a nucleation site on the surface of Cu 2 O nanocrystalline. PVP binds onto different sites to proceed with the reduction utill all the Cu sources in Cu 2 O shell are completely assumed.
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Xu Yunyun,Wang Dashuai,Li Yuejiao,Qi Haifeng,Guo Zhuobin,Azam Tasmia,Das Pratteek,Wu Zhong-Shuai,Cheng Hui-Ming
All-solid-state Li–CO 2 batteries are limited by sluggish interfacial CO 2 redox kinetics and the incomplete decomposition of insulating Li 2 CO 3 at rigid solid-solid-gas interfaces. Here, we report an integrated cathode-electrolyte architecture in which copper atomic clusters and single atoms are co-anchored on freestanding N-doped carbon nanotubes and coupled with a succinonitrile/Li 1+x Al y Ge 2-y (PO 4 ) 3 -based solid-state electrolyte. The conformal ion-conducting phase and conductive nanotube scaffold provide coupled pathways for Li + , electrons and CO 2 at the cathode interface. Electronic coupling between the copper atomic clusters and single atoms induces charge transfer from the former to the latter (~0.457 e − ), rendering the Cu cluster sites partially cationic and facilitating the activation of carbonate intermediates. This dual-site configuration changes the discharge pathway and lowers the reaction energy of the rate-determining step to 2.412 eV. The assembled battery delivers a discharge capacity of 21356 mAh g −1 at 200 mA g −1 and operates for 260 cycles (>1000 h) at 500 mA g −1 with an energy efficiency of 78%. This work provides an interfacial design strategy for solid-state Li–CO 2 batteries by coupling continuous transport pathways with electronically regulated dual Cu active sites.
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高影响因子
Advanced Energy and Sustainability Research
·
2022
·Vol. 3
·期 7
·2200006
·
IF 0
Shasha Hao,Shaotang Yu,Xinge Liu,Bingyan Li,Shuaiqi Han,Hao Xin,Weibo Yan,Wei Huang
Copper indium gallium selenide Cu(In,Ga)Se 2 (CIGS) solar cells fabricated by vacuum thermal evaporation, magnetron sputtering, or organic solvent solution-process either lead to high manufacturing cost and film nonuniformity or cause explosion, toxication and pollution. To address these issues, herein, water as a solvent to prepare the CIGS precursor solution is used and 7.04% efficient CIGS solar cells without MgF 2 antireflection layer is obtained. Furthermore, for the first time, K doping on CIGS films via adding “K + ” into the aqueous precursor solution is conducted. K–In–Se species is formed in the process of selenization and acts as a Se reservoir during CIGS grain growth, resulting in improved quality of the CIGS film with much larger grains. K doping can also inhibit the loss of Ga element. The high-bandgap K–In–Se phase and higher Ga content combine to result in the increase in the CIGS bandgap. As a result, the K-doped CIGS solar cell achieves a 33.1% enhancement in efficiency to 9.37%, with the significant increase in the open-circuit voltage from 520.5 to 597.1 mV and fill factor from 50.77 to 55.36%. These results provide an important preliminary foundation for the development of aqueous precursor solution-based CIGS solar cells.
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WATER SCIENCE AND TECHNOLOGY
·
2022
·Vol. 85
·期 7
·2038-2050
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IF 2.43
Zhang Ming,Zhang Kuo,Zhou Runjuan,Wang Jinpeng
In this study, a new type of iron/copper bimetallic combined with hydroxylamine (HA) activated peroxymonosulfate (PMS) was constructed to treat organic pollutants. Selecting the azo dye acid orange 7 (AO7) as the representative of organic pollutants, the new system can achieve nearly 100% degradation of AO7 within 5 min. The Fe(III)/Cu(II)/HA/PMS system mainly generates SO 4 ·− to achieve the degradation of AO7 in acidic environment, while neutral and alkaline environments rely on · OH. The presence of hydroxylamine accelerates the cycle of Fe(III)/Fe(II) and Cu(II)/Cu(I) in the system, and enhances the degradation ability of the system for organic pollutants. The addition of trace Cu(II) (1 μM) enhances the ability of a single Fe(III)/HA/PMS system to degrade AO7 in neutral and alkaline environments without causing secondary copper pollution. The common inorganic anions Cl − and NO 3 − in water have almost no effect on the degradation of AO7 in the system. The constructed Fe(III)/Cu(II)/HA/PMS system is an efficient and clean organic pollutant wastewater treatment process, which has very promising application prospects. The effect of hydroxylamine on the activation of peroxymonosulfate in Fe(III)-Cu(II) bimetallic is reported for the first time. The Fe(III)/Cu(II)/hydroxylamine/peroxymonosulfate system can remove 100% of AO7 within 5 min. Hydroxylamine enables Fe(III), which cannot activate peroxymonosulfate, to activate peroxymonosulfate efficiently. A trace amount of Cu(II) can reduce Fe(III) to Fe(II).
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhanbo Wang,Depeng Gong,Zezhen Zhang,Shilong Gao,Chaocan Zhang
First reported liquid-phase synthesis of copper nanorods from a highly concentrated copper precursor under low-alkalinity and low structure-directing agent conditions. • A highly oxidation-resistant conductive ink was prepared by electroless plating and by using an organosilane-modified polyurethane as the continuous phase. • The resulting conductive ink enables stable performance in flexible electronics applications, including motion sensing, physiological monitoring, human-machine interfaces, wireless communication, and electromagnetic interference shielding. Functional conductive inks are foundational to flexible electronics and demand tight control over the oxidation resistance and conductivity of the metallic phase, together with the rheology, mechanical compliance and thermal stability of the continuous phase, to optimise printability and device performance. Morphology control of the conductive phase is also essential; however, scalable, low-cost and environmentally benign syntheses remain challenging. Here reporting a strategy that addresses these barriers. Polyether diamine (ED-2003) serves as a structure-directing agent under low-alkalinity, ice-bath conditions, enabling, for the first time, large-scale copper nanorod production from a high-concentration precursor system. A facile, contamination-free electroless silver-plating step forms Cu@Ag core-shell nanorods with excellent oxidative stability, while functional-group incorporation into the polymer backbone of the continuous phase concurrently improves flexibility, thermal robustness and nanorod dispersibility. The resulting ink delivers ultrahigh conductivity (386,093.33 S cm −1 at 19 wt% solids) and retains 383,192.56 S cm −1 after one year in air. It prints high-resolution, uniform conductive patterns on latex, (polyurethane) PU, cellulose and PET, and the printed films maintain nearly constant conductivity after 10,000 bending cycles, and printed traces are stretchable to 1000%. Collectively, these results highlight the broad applicability of the ink in flexible printed electronic products and establish a new paradigm for the scalable manufacture of high-performance, low-cost printed conductive inks for flexible electronics. Download: Download high-res image (270KB) Download: Download full-size image
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高影响因子
ANALYTICAL CHEMISTRY
·
2025
·
IF 6.7
Wei Yang,Wenbo Jiang,Qiming Huang,Tianchi Leng,Leyi Zhang,Yaxin Zhang,Shan Chen,Yuanqing Gao,Yimin Fang
The urgent need for rapid, low-cost pathogen diagnostics in resource-limited settings drives the development of point-of-care technologies that balance sensitivity, specificity, simplicity, and cost. Here, we present a biosensing platform by integrating an aptamer-poly-T DNA strand for rapidly loading copper nanoclusters (Cu NCs) on the target pathogen and size-exclusion filtration to concentrate the pathogen onto a membrane, enabling ultrasensitive visual detection of low-abundance pathogens within 20 min by naked eyes. The aptamer domain enables the pathogen-specific recognition (validated by Salmonella and SARS-CoV-2 pseudovirus), while the poly-T template facilitates the rapid (<5 min) loading of Cu NCs to the target. The Cu NC-labeled target pathogens were then concentrated on the membrane, while the matrix interferents (salts, proteins), as well as the unbound Cu NCs can be washed away from the membrane due to their relatively small sizes. The efficient release of thousands of Cu2+ from the Cu NCs enables the sensitive coloration of the membrane in the presence of TEA, yielding a 10,000-fold sensitivity gain over colloidal gold assays. This cascaded mechanism achieves a detection limit of 10 particles/μL in undiluted serum. The sensing platform is applicable to other biological particles such as exosomes (cancer biomarkers) with low cost (a per-test cost < $1). By merging molecular specificity with field-deployable robustness, this technology redefines decentralized diagnostics for emerging bacterial or viral threats, offering transformative potential for epidemic surveillance and precision public health interventions.
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PubMed
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Qi Liang,Tao Liao,Liqin Zhu,Changxiang Liu,Qian Liu,Jianhua Xiong,Ruiping Deng,Xiaoning Liao
A novel nanocomposite consisting of core (Cu)-shell (Ag) nanoparticles encapsulated in carbon nanotubes (CTs) grown on a MOF-derived carbon framework was synthesized by in-situ pyrolyzing method. After further modification with multi-walled carbon nanotubes (MWCNTs), a hierarchical porous carbon network confined core (Cu)-shell (Ag) bimetal (Cu@Ag@CTs/MWCNTs) with excellent catalytic properties to isoproturon (ISO) and norfloxacin (NOR) was obtained. The electrochemical sensor based on the Cu@Ag@CTs/MWCNTs can simultaneously detect the ISO and NOR with excellent sensitivity, good selectivity and perfect stability as well as a separation of peak potential of 270 mV. The calibration curves for ISO and NOR achieved by the proposed sensor range from 80 nM to 18 μM and 7.0 nM to 1.7 μM with detection limits of 26 nM and 2.0 nM, respectively. Moreover, the sensor shows good recoveries in simultaneous detection of ISO and NOR in real sample analysis, highlighting its high feasibility in practical application.
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高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Xixi Zhao,Pengheng Li,Min Lin,Xing Zhu
A “hydroxyl-transition metal synergistic” strategy was developed to enhance Cu-Ce oxygen carriers for chemical looping preferential oxidation (CL-PROX). Among synthesized MCuCe (M = Mn, Fe, Co) samples, MnCuCe exhibited superior performance. Mn doping strengthened strong interfacial interactions via oxygen vacancy-mediated charge compensation, yielding the highest surface Cu + (77.44%), Ce 3+ (20.94%), and oxygen vacancies (35.30%). Consequently, MnCuCe achieved >99% CO conversion at 180 °C with <3% H 2 consumption, showing no deactivation after 30 cycles. In situ FTIR verified that Cu + serves as the pivotal active site within a Mars-van Krevelen (MvK) mechanism. DFT calculations confirmed that the synergistic construction of stable M−Cu + −O v −Ce 3+ sites results in the most negative CO adsorption energy (−3.00 eV). This study provides a novel paradigm for designing high-performance CL-PROX oxygen carriers.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2026
·
IF 19.7
Jiaxin Li,Zhizhi Xu,Huan Jiang,Tianhao Ai,Songshan Zhu,Jinqiang Zhang,Shimin Ma,Jichang Lu,Yongming Luo
Methanol steam reforming (MSR) is promising for low-temperature H 2 production, yet Cu-based catalysts often deactivate under steam due to oxidation and sintering. Herein we develop a sol-gel-derived CuTiCe catalyst through dual-interface engineering that achieves both high MSR activity (complete methanol conversion and >99% CO 2 selectivity at 250 °C, with a H 2 productivity of 298 mmol∙g −1 cat ∙h −1 ) and durability (110 h time on stream), which outperforms single CuCe and CuTi samples. Comprehensive characterizations confirm that Ti incorporation drives Cu/Ti co-doping into lattice interstitial sites within CeO 2 and forms abundant Cu-O-Ti and Ti-O-Ce interfaces, significantly strengthening electronic metal-support interactions. Mechanistic research reveals that this dual interfacial structure stabilizes Cu + against oxidation and sintering, while boosting the desorption of water-dissociated species and avoiding oxygen vacancy refilling by ∙OH. This study provides an approach for tailoring the catalytic performance of Cu-based catalysts by multicomponent doping and interface engineering, paving the way for efficient and stable H 2 production.
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高影响因子
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