CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Dashui Zhang,Junxin Wang,Lina Li,Haiyuan Huang,Zhangfa Tong,Shuangliang Zhao,Hui-Ying Qu
Metal-organic frameworks (MOFs) exhibit great potential in electrochromic applications owing to their tunable pore structure and abundant redox active sites. Among them, the Cu-based MOF—Cu-TCA (H 3 TCA = 4,4′,4′′-nitrilotribenzoic acid) stands out as an ideal electrochromic material due to its dual redox activity. However, challenges such as particle agglomeration and weak interfacial adhesion between Cu-TCA and substrates hinder its electrochromic performance. Here, we propose a novel interfacial modification strategy combining oxygen plasma (OP) with self-assembled molecules (SAMs) to modify indium-doped tin oxide (ITO) -coated glass substrates. The OP@SAMs layer enhances the adhesion between Cu-TCA and substrates via coordination bonds, and facilitates the formation of uniform Cu-TCA crystals with large ion transport channel size (8.4 Å), large pore volume (0.136 cm 3 ·g −1 ), and high porosity (0.209), to improve the electrochemical cycling durability and accelerate ion transfer, thus achieving superior electrochromic performance. Results demonstrate that the Cu-TCA thin film grown on the OP@SAMs-modified ITO-coated glass substrate exhibits large transmittance modulation (~ 56 %), short coloration/bleaching time (3.7 s/1.0 s), high coloration efficiency (287.2 cm 2 ·C −1 ), and superior cycling stability (1000 cycles). The corresponding Cu-TCA electrochromic device also exhibits outstanding electrochromic performance. This study provides a novel strategy for developing high-performance MOFs-based electrochromic materials and offers valuable references into interfacial engineering for the synthesis of MOFs-based thin films.
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Materials Today Energy
·
2023
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IF 9.3
Nanrui Li,Tianqi Jia,Yanru Liu,Yunfei Ouyang,Yao Lv,Geng Zhong,Yufeng Wang,Bo Sun,Sirong Lu,Shifei Huang,Feiyu Kang,Yidan Cao
The formation of Li dendrites and dead Li, which causes short circuits, continuous side reactions, low Coulombic efficiency (CE) and thermal runaway, severely hinders the development of anode-free lithium metal batteries . Here, Cu-based current collector with super-three-dimensional lithiophilic modification layer is developed by the pyrolysis of resorcinol formaldehyde on 3D engineered copper mesh (a-RF@3D CM). The modification layer, consisting of highly dispersed CuO x sites in the O-containing defective carbon, together with the super-three-dimensional microstructure exhibits excellent lithiophilicity and capability to effectively reduce the nucleation overpotential, accommodate the uniform dendrite-free lithium deposition, promote stable and inorganic-rich solid electrolyte interphase formation, and improve the cycle stability. As a result, the a-RF@3D CM current collector exhibits reduced nucleation overpotential of 14.2 mV and prolonged cycling life over 400 cycles with average CE >98.5%. In the LiFePO 4 ||a-RF@3D CM anode-free cell, average CE of 99.50% and capacity retention of 60.66% are successfully achieved after 100 cycles. Meanwhile, average CE 99.78% and capacity retention of 64.43% are successfully achieved in LiFePO 4 ||Li@a-RF@3D CM cell (N/P = 1.6) after 200 cycles. The work provides feasible way to realize the fabrication of anode-free lithium metal batteries and also enhance the understanding of solid electrolyte interface evolution and regulation strategy of Li plating–stripping in advanced Li metal-based batteries.
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CHINESE JOURNAL OF CATALYSIS
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2016
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IF 2.628
Li Liu,Na Tian,Long Huang,Yu-Hao Hong,Ai-Yun Xie,Feng-Yang Zhang,Chi Xiao,Zhi-You Zhou,Shi-Gang Sun
The modification of oxide-derived Cu electrode with Ni, Zn, and Au was examined to improve the catalytic activity of CO 2 electroreduction. The experimental results showed that Ni modification increased the Faraday efficiency of the formation of formic acid and n -propanol. The Faraday efficiency relating to the formation of the liquid products was as high as 34.3% at −1.5 V versus the saturated calomel electrode reference potential. In contrast, modification with Zn reduced the formic acid formation efficiency but enhanced the alcohol formation efficiency. Finally, modification with Au suppressed the selectivity toward the formation of both formic acid and alcohols.
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JOURNAL OF ALLOYS AND COMPOUNDS
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2024
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IF 5.8
Ping Li,Huanhuan Wu,Chengming Zhang,Quangui Liang,Huihui Ding,Haibao Zhu,Jun Ma,Xiang Li,Shuangshuang Huai,Congliang Cheng,Xiufang Wang
The lack of active sites and the low availability of photoelectrons severely limit the photocatalytic reduction of nitrogen to ammonia in semiconductor materials. Here, we successfully designed a BiOBr/O v -TiO 2 -Cu heterojunction catalyst toward N 2 fixation into NH 3 . The optimized BiOBr/O v -TiO 2 -Cu heterojunction has a promising photocatalytic performance and stability with the highest NH 3 yield of 259.82 μmol·g −1 ·h −1 . The combination of detailed theoretical simulation calculations and comprehensive characterizations indicates the BiOBr/O v -TiO 2 -Cu heterojunction with oxygen vacancy (O v ) stabilized Cu nanoparticles (NPs) as active sites can effectively adsorb and activate N 2 molecules. The close contact between BiOBr and Ov-TiO 2 elevates the quick transmission of photogenerated electrons at the interface and the enrichment on Cu NPs. This work not only provides an efficient photocatalyst for the N 2 reduction, but also supplies theoretical support for identifying the active sites and charge transfer kinetics of the nitrogen reduction reaction.
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Plasmonics
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2024
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IF 3.3
Cui Jiahao,Han Xue,Shi Guochao,Li Kuihua,Zhou Wenying,Li Zelong,Yu Zengshan,Wang Mingli
Surface-enhanced Raman scattering (SERS) sensors are ideal for point-of-care testing (POCT) of disease markers; the key to practical applications lies in their quantitative detection capabilities and high sensitivity. In this study, We propose a simple method to develop a high-sensitivity composite SERS substrate using physical vapor deposition (PVD) technology. This SERS substrate, utilizing 4-aminothiophenol (4-ATP) as the detection molecule, demonstrated a high enhancement factor (~ 10 6 ) and a low detection limit (10 −10 M). The corrected linearity problem achieved good linear correlation ( R 2 = 0.988) by using 4-ATP. In the trace detection process of creatinine, when creatinine is dissolved in goat serum solution diluted 1000 times, there is still a clear SERS signal at the characteristic peak when the concentration is only 10 −4 g/l, further demonstrating the potential of SERS sensors in the detection of renal disease biomarkers.
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SOLAR ENERGY
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2024
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IF 6
Maoqing Tang,Linfei Yue,Cong Qi,Lin Liang
In order to improve the evaporation efficiency of solar-driven interface water, Cu-Fe 3 O 4 nanoparticles were synthesized in this work, and nanoparticle films with excellent light absorption properties were prepared by vacuum filtration. Benefiting from the combination of the nanoparticle film and the thermal insulation materials, nanoparticle film coupled with thermal insulation materials exhibits good evaporation performance. Effects of the type of thermal insulation materials (Ethylene Vinyl Acetate Copolymer (EVA), Polyvinyl Alcohol (PVA), Polystyrene (PS)), the superficial density of nanoparticles (0 g/m 2 , 0.4 g/m 2 , 0.8 g/m 2 and 1.2 g/m 2 ) and the radiation intensity (2 sun, 3 sun, 4 sun) on the evaporation characteristic were studied. Results descripted that when the radiation intensity of 2 sun is used, the interfacial structure composed of the nanoparticle film with a superficial density of 1.2 g/m 2 and the thermal insulation material EVA has the best evaporation performance (evaporation rate is 2.19 kg/m 2 /h, evaporation efficiency is 68.62 %, thermal efficiency is 84.68 %). Although the addition of thermal insulation material reduces the temperature rise of water, it improves the evaporation efficiency of nanoparticle film. This paper provides a solar interface evaporation method for photothermal evaporation.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Yunfei Bao,Liping Zhao,Fengshuo Xi,Shaoyuan Li,Xiuhua Chen,Jijun Lu,Zhongqiu Tong,Kuixian Wei,Bin Luo,Wenhui Ma
Silicon anodes are promising candidates for next-generation lithium-ion batteries owing to their high theoretical capacity. However, the practical application of silicon anodes is limited by severe volume expansion and poor cycling stability. This study presents a sustainable and cost-effective strategy for synthesizing high-performance graphene-like carbon (GLC)-coated silicon/nano‑copper (Si/Cu@GLC) composites using photovoltaic silicon cutting waste (SCW) as the starting material. The synthesis combines copper-assisted chemical etching with the catalytic pyrolysis of humic acid, yielding a composite with enhanced electrochemical performance. Economic and environmental assessments reveal that the SCW-derived Si/Cu@GLC exhibits lower production costs and CO 2 emissions than conventional silicon anode fabrication processes. The Si/Cu@GLC composite exhibits a high initial discharge capacity of 2333.98 mAh g −1 , along with excellent cycling stability and superior rate capability. The GLC coating and nanoporous structure synergistically mitigate volume expansion, resulting in a low expansion rate of only 157 % after 100 cycles. Upon integration into a full cell with an LFP (Lithium Iron Phosphate) cathode, Si/Cu@GLC exhibits excellent cycling stability, retaining 86.7 % of its capacity after 200 cycles at 0.5C. This study provides a sustainable and scalable approach for upcycling photovoltaic silicon waste into high-performance silicon–carbon anodes. The findings highlight the potential of an eco-friendly circular production model that combines economic viability with superior battery performance.
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PubMed
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ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Lei Xiong,Xianbiao Fu,Jun Zhang,Shuang Liu,Shanshan Li,Shaojie Lu,Dong Wang,Qin Yue
Cu shows unique characteristics for electrochemical CO 2 reduction reaction (CO 2 RR) to hydrocarbons and oxygenates due to the moderate adsorption energy of the key intermediate *CO. However, it remains a challenge to selectively control CO 2 RR towards C 1 (e.g., CH 4 ) or C 2+ (e.g., C 2 H 4 and C 2 H 5 OH) through simple interface engineering. Herein, a series of inverse catalysts, composed of CeO 2 nanoparticles over Cu substrate (Cu-CeO 2 -x), are subtly designed to tackle the issues. It is verified CeO 2 decoration induces highly active Cu/CeO 2 interfacial sites that enhance the adsorption and conversion of CO 2 and *CO intermediates into C 2+ or CH 4 , while the Cu sites are conducive to *CO generation. With the increase of CeO 2 deposition, the C 2+ and CH 4 selectivity present a volcano-type and increasing tendency with maximum faradic efficiency of 62.6% and 51.3%, respectively. In-situ infrared spectroscopy and theoretical calculations reveal that moderate CeO 2 loading allows the Cu/CeO 2 interfacial sites to cooperate efficiently with the Cu sites to promote the coupling of *CO/*CHO intermediates, thus enhancing the C 2+ selectivity. In contrast, excessive CeO 2 loading suppresses the C─C coupling but boosts unilaterally the hydrogenation, thus promoting the CH 4 production. This work provides effective strategies to regulate the CO 2 RR selectivity by modulating metal/oxide interfaces.
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ACS Applied Nano Materials
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2025
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IF 5.5
Changsong Chen,Xusheng Yang,Zhiyong Fu,Le Zhou,Bin Xu,Kaiming Zhang,Shengbin Zhou,Limei Zhou,Weidong Jiang
Traditional hydrogenation requires noble metal catalysts and harsh conditions. To overcome these intrinsic drawbacks, herein, sulfur-doped Co3O4–CuO/CNS bicomponent nanocomposites were prepared using S-modified chitosan (CNS) as a template via the precipitation method. The experimental results demonstrated that the incorporation of sulfur (S) significantly enhanced the synergistic effect of the Cu–Co-based bimetallic system, thereby improving catalytic activity. Notably, Co3O4–CuO/CNS-10 exhibited remarkable catalytic performance in the hydrolytic dehydrogenation of sodium borohydride, achieving a hydrogen generation rate (HGR) of 357.9 mL·min–1·g–1cat. Furthermore, Co3O4–CuO/CNS effectively catalyzed the tandem hydrogenation reduction of m-nitrobenzene (m-CNB) to m-nitroaniline (m-CAN) in the presence of sodium borohydride (NaBH4), as evidenced by an m-CAN yield of up to 99.80% under highly mild conditions. Also, Co3O4–CuO/CNS-10 displayed high chemoselectivity and regioselectivity for the reduction of various aromatic nitro compounds containing potential reactive functional groups. The doping of sulfur promotes the bimetallic Cu–Co synergistic effects accompanied by the increases of the Co2+/Co3+ ratio and enriches oxygen vacancy defects on the surface, thereby enhancing the catalytic activity of the screened heterogeneous catalyst. This work highlights the key role of sulfur and provides an innovative strategy for elevating the catalytic reactivity of bimetallic nanocatalysts.
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FOOD CHEMISTRY
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2024
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IF 8.5
Wenyang Sheng,Li Yang,Yichen Yang,Chenzhi Wang,Guangyang Jiang,Yongqiang Tian
The existing films used for fruit preservation suffer from insufficient preservation abilities. This study introduces Cu-tannic acid (Cu-TA) nanoparticles, synthesized from tannic acid (TA) and Cu 2+ , to enhance food packaging properties. Integrated into a chitosan-gelatin (CG) matrix, the resultant Cu-TA nanocomposite films exhibit superior antibacterial efficacy and killing rates of Escherichia coli and Staphylococcus aureus more than 99 %, and double the shelf life of strawberries, underscoring the exceptional freshness preservation capabilities of film. Additionally, the tensile strength of the Cu-TA nanocomposite films increased by 1.75 times, the DPPH radical scavenging percentage increased from 29.4 % to 68.4 %, and the water vapor permeability (WVP) decreased by about 60 % compared to the pure CG films. Comprehensive cytotoxicity and migration assessments confirm the safety of film, paving the way for their application in food packaging. The excellent performance of the Cu-TA nanocomposite films positions them as a formidable solution for protecting perishable food items.
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PubMed
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SEPARATION AND PURIFICATION TECHNOLOGY
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2024
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IF 8.1
Ying Wang,Qiao Zhang,Zhiting Liu,Guangxing Yang,Feng Peng
Photothermal evaporation is an efficient way to utilize solar energy to desalinate seawater for freshwater resources, which can effectively alleviate the press on accessing to freshwater in water-scarce countries and regions. Here, a highly efficient ternary composite consisting of Bi 2 WO 6 , copper and carbon is developed as a photothermal conversion material for solar-driven water evaporation (SDWE) systems. This composite is coated on the top of a base consisting of expanded polystyrene (EPS) foam and hydrophilic fiber paper to construct an interface evaporator, enabling sustainable solar-driven freshwater production. Due to its wide light absorbing range, localized photothermal conversion and low evaporation enthalpy, the solar steam generation (SSG) through Cu@Bi 2 WO 6 -based evaporator could be accelerated, thus a high evaporation rate of 2.07 kg m −2 h −1 and an evaporation efficiency of 97 % are obtained under one sun, outperforming the-state-of-art evaporators. This work proposes a feasible way to deal with freshwater shortage.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
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IF 19.503
Hui Su,Shaojia Song,Songsong Li,Yangqin Gao,Lei Ge,Weiyu Song,Tianyi Ma,Jian Liu
Rational design of low-cost and efficient electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is imperative for renewable energy conversion. Herein, for the first time, a facile strategy is developed to synthesize M (M = Fe, Cu, Zn, Mo) doped bimetallic sulfide heterostructure Ni 3 S 2 /Co 3 S 4 electrocatalysts. The as-prepared bifunctional Cu-Ni 3 S 2 /Co 3 S 4 electrode exhibits excellent electrocatalytic activity for HER and OER in 1 M KOH electrolyte, and it requires only an overpotential of 79 mV (150 mV) to deliver 10 mA cm −2 (20 mA cm -2 ) current density for HER process. Moreover, it shows a considerable low cell voltage of 1.49 V at the current density of 10 mA cm -2 in a two-electrode configuration which is far surpassing most of the reported bifunctional metal sulfides. Meanwhile, besides increasing the specific surface area of the electrocatalyst by optimizing the microstructure, the introduction of Cu cation could also stimulate the formation of high-valent Ni/Co sites, which can be verified by XPS technique. Density function theory calculations demonstrate that the Cu-doping boosts the formation of high valent Co sites and enhances the charge transfer performance of Ni and Co species, thus promotes intrinsic catalytic activity through modulating the d-band center of Co and reducing the adsorption energy of H and O-containing intermediates (H*, OH*, OOH*) on the surface of the catalyst. This work suggests the importance of exploitation of transition metal ion-doping for promoting the electrocatalytic activity of bimetallic sulfides.
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