JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Hanhao Liang,Jian Wu,Jianglin Wang,Zhanhong Yang
Zn-Ni batteries have garnered considerable attention due to their high specific energy, consistent discharge voltage, favorable performance at low temperatures, and environmentally benign nature. Nevertheless, anode interface issues such as dendrite growth, hydrogen evolution , and interfacial side reactions lead to poor cycling stability of Zn-Ni batteries, significantly limiting their further commercial applications. In this study, we propose a facile electrolyte engineering strategy to optimize the Zn anode interfacial environment and stabilize the Zn anode by introducing tannic acid (TA) into the KOH electrolyte. The incorporated TA complexing agent addition will be used to prevent the direct contact of H 2 O with the anode surface and promote the desolvation of Zn 2+ through complexation, thus suppressing the interfacial corrosion. Consequently, the Zn symmetric battery using TA electrolyte cycles stably for 178 h at 1 mA cm −2 . The Zn-Ni full batteries with TA electrolyte maintain 98.08 % capacity retention after 2000 cycles at 20C. This study will be of immediate benefit in commercializing large-scale, practical energy storage applications.
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PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Yufeng Fu,Ao Xie,Yujing Guo,Peng Song,Jinyuan Miao,Linting Cheng,Chenxi Zhu,Weijian Han,Zhiqun Bai,Yongmei Chen,Pingyu Wan,Yang Tang
Water electrolysis powered by renewable energy is widely regarded as one of the most important methods for large-scale green hydrogen production. In this work, we have prepared a high-valence gallium-doped nickel-molybdenum nitride nanocomposite (Ga-Ni/Mo 3 N 2 @C) with abundant heterojunctions by a co-precipitation step and a subsequent high-temperature treatment step. The produced Ga-Ni/Mo 3 N 2 @C material benefits from a dual modification strategy (DMS) including the Ga doping-induced internal electronic construction and the carbon shell encapsulation-derived external corrosion inhibition. This DMS not only facilitates the modulation of the intrinsic activity of Ni and Mo constituents, but also strengthens the durability of the Ni/Mo 3 N 2 active components. In hydrogen evolution reaction (HER) test, Ga-Ni/Mo 3 N 2 @C exhibits ultra-low overpotentials of 9 mV at 10 mA cm −2 and 116 mV at 100 mA cm −2 , small Tafel slope of 41.2 mV dec −1 , high conductivity of 114.8 μS cm −1 and low charge transfer resistance of 0.729 Ω cm 2 . Moreover, the Ga-Ni/Mo 3 N 2 @C electrocatalyst exhibits an ultralow Arrhenius activation energy of 14.69 kJ mol −1 , lower than those of Ni/Mo 3 N 2 (20.78 kJ mol −1 ), commercial Raney Ni (41.40 kJ mol −1 ) and Pt/C catalyst (15.24 kJ mol −1 ). The Ga-Ni/Mo 3 N 2 @C-assembled electrolyzer exhibits a lower cell voltage of 1.80 V than the counterpart cells with commercial Raney Ni (2.05 V) cathode or Ni/Mo 3 N 2 (1.85 V) cathode at 3000 A m −2 and room temperature, showing negligible deterioration in performance. The utilization of high-valence Ga atoms doping and carbon shell protection effect not only modulates material electronic structure to accelerate reaction kinetics, but also inhibits the dissolution of active sites. It is believed that this study offers a novel strategy for the development of high-performance electrocatalysts in water electrolysis.
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APPLIED CATALYSIS B-ENVIRONMENTAL
·
2021
·
IF 19.503
Yingying Li,Yong Men,Shuang Liu,Jinguo Wang,Kang Wang,Yuhan Tang,Wei An,Xiaoli Pan,Lin Li
Citric acid has been investigated for preparing the highly dispersed nickel catalysts on Y 2 O 3 support. A highly enhanced methanation activity with the high CO 2 conversion of 92 % and CH 4 selectivity of 100 % was obtained over Ni/Y 2 O 3 with optimum addition of citric acid at 350 °C. The citric acid additives during the preparation are found to influence the size of nickel nanoparticles and the interaction of metal and support, as estimated by various techniques, which, in turn, to correlated with the catalytic performance. In situ DRIFTS spectra further indicate the importance of small Ni particles on formation of carbonates and formate species as key intermediates and the subsequent hydrogenation of those species into methane. This study proposes that the Y-O-Ni interfacial structure formed by the strong Ni and Y 2 O 3 interaction at high citric acid addition is of prime importance for the formation of methane, benefiting from the more abundant basic sites and metallic Ni to enable CO 2 activation and hydrogenation of key intermediates by effective H 2 dissociation respectively. This work provides a new design strategy for developing highly efficient composite CO 2 methanation catalysts by control of the metal particle size and charge transfer via metal/support interface.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Zhanhong Zhao,He Zeng,Yi Zhou,Mingliang Yuan,Xinghua Chang
To address the inherent contradiction between adsorption/desorption energy barriers of intermediates in single-metal urea oxidation reaction (UOR) catalysts, this study developed a cyanide-bridged bimetallic catalyst , Ni 2 Fe(CN) 6 , via liquid-phase synthesis and plasma modification. Plasma modification enhances the structural stability of the three-dimensional framework and optimizes its electronic properties through selective metal ion substitution and framework reconstruction. In situ electrochemical Raman spectroscopy confirms that the cyanide bridge serves as an electron transport bridge, effectively linking Ni and Fe active centers and providing a stable electron transfer pathway for the Ni³ ⁺/Ni²⁺ redox cycle, leading to a 2.05-fold increase in cycling efficiency compared to untreated catalysts. Benefiting from the synergistic effect of the bimetallic centers, Ni 2 Fe(CN) 6 exhibits superior UOR electrocatalytic performance, achieving an overpotential of only 0.425 V（vs. Hg/HgO） at 10 mA cm −2 . Furthermore, theoretical calculations indicate that the protonation state of amino groups significantly influences the rate-determining step by modulating the reaction pathway. The presence of functionally distinct and diversified active sites enables a multi-pathway synergistic catalytic mechanism, effectively promoting key reaction steps, including amino proton transfer , C-N bond cleavage, and N-N coupling.
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ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Mingqiang Chen,Zhiwei Yang,Haosheng Xin,Yishuang Wang,Defang Liang,Chang Li
As a major constituent of renewable biomass, conversion of cellulose to high-value chemicals presents a promising strategy. Herein, we designed a multifunctional Ni@C/WOx catalyst for direct cellulose conversion to ethylene glycol. This catalyst exhibited excellent stability while achieving a high ethylene glycol yield (69.4%). Graphene-encapsulated metal Ni stabilized hydrogenation activity and minimized metal leaching. The interaction between Ni@C and WOx facilitated the reduction of WOx and increased the formation of W5+ species. Characterization by electron paramagnetic resonance (EPR), X-ray photoelectron spectroscopy (XPS), NH3-TPD, and Py-IR confirmed that W5+ formation induces oxygen vacancies and acid sites on the catalyst support surface. At 30% Ni loading, strong metal–support interactions maximized the W5+ concentration and oxygen vacancy, enhancing the C–C bond cleavage efficiency. Consequently, the synergistic effect between Ni@C and WOx effectively facilitates key steps in cellulose conversion to ethylene glycol: cellulose hydrolysis, glucose retro-aldol condensation, and glycolaldehyde hydrogenation. The understanding of these structure–performance relationships has provided new ideas for the green and sustainable production of high-value-added chemicals from cellulose.
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Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Chen Feng,Haoxi Jiang,Lingtao Wang,Guochao Yang
CO 2 methanation is a critical process for converting CO 2 greenhouse gas into clean methane fuel, which holds significant strategic importance for environmental sustainability and energy sectors. Thermodynamic limitations demand low-temperature catalysts with enhanced low-temperature activity. This study employs solvent evaporation-induced self-assembly (EISA) to in-situ encapsulate Ni and Ce within SBA-15 molecular sieves. The approach significantly enhances low-temperature reactivity, achieving 67.5% CO 2 conversion and nearly 100% CH 4 selectivity at 300 °C, outperforming among Ni-based catalysts with silica carriers. Textural and electronic characterizations reveal that confinement effects of SBA-15 and electronic promotion of Ce synergistically strengthen the low temperature activity in methanation. This results in smaller Ni nanoparticles and an electron-rich Ni state, optimizing catalytic performance. Mechanistic analysis suggests that the Ce-modified Ni catalyst favors the formate pathway over the CO pathway, which supports the high methane selectivity and low carbon monoxide selectivity observed in this study.
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Sustainable Energy & Fuels
·
2025
·
IF 4.1
Anran Zhu,Zhufan Zou,Ai-Qin Wang,Cong Yu,Yinghua Yin,Ning Li
2,5-Bis(furan-2-ylmethyl)cyclopentan-1-one (FCFDH), a C15 precursor for renewable jet fuel range cycloalkane and high-value electronic photolithography material, was selectively synthesized via a cascade aldol condensation/hydrogenation reaction of furfural and cyclopentanone under solvent-free conditions. Non-noble metal Cu and Ni modified MgAl-hydrotalcite (Cu-Ni/MgAl-HT) was found to be an effective and stable catalyst for this reaction. Under the optimized conditions (423 K, 4 MPa H₂, 10 h), 97.0% cyclopentanone conversion and 82.0% carbon yield of FCFDH were achieved. Based on the characterization results, the presence of Ni and Cu species increased the acidity of MgAl-HT and formed Ni-Cu alloy particles with an average size of 2.33 nm during the preparation of catalyst. Both effects facilitate the aldol condensation of furfural and cyclopentanone and the formation of FCFDH by the selective hydrogenation of C=C bond.
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Surfaces and Interfaces
·
2025
·
IF 6.3
Changlong Jiang,Yitong Yue,Yiming Wang,Bing Zhou,Gaojie Han,Ming Huang,Yuezhan Feng,Chuntai Liu
Low-reflection electromagnetic interference (EMI) shielding materials have attracted increasing attention due to their capability to prevent secondary electromagnetic pollution, yet simultaneously achieving high EMI shielding effectiveness (SE) and low reflection remains a major challenge. In this study, heterostructure MXene@Ni hybrids were first synthesized, followed by the fabrication of a multilayered MXene@Ni/ANF film with an electro-magnetic dual-gradient structure via a layer-by-layer vacuum-assisted filtration process. The electro-magnetic dual-gradient structure was achieved by precisely controlling the MXene-to-Ni loading ratio and implementing a specific filtration sequence. The engineered gradient layered structure regulate the electromagnetic properties by modulating the mass ratio of MXene to Ni in each MXene@Ni/ANF layers. As a result, the composite film with precise control of the electro-magnetic gradient transition layers and reflection layer achieved excellent impedance matching and electromagnetic wave dissipation, ultimately resulting in remarkably efficient EMI shielding performance (37.6 dB) with low reflection characteristic (a low reflection coefficient of 0.72). This optimized structure ensures efficient electromagnetic wave absorption with minimal reflection, making it highly suitable for advanced EMI shielding applications.
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Materials Today Energy
·
2025
·
IF 8.6
Kangwen He,Chi Chen,Shuangjia Weng,Xing Xu,Zhoule Gu,Hongqiao Li,Yang Xia,Yinfeng Wang,Hailing Peng,Xiaoxiao Lu
Ultra-high Ni quaternary cathodes (LiNi x Co y Mn z Al 1-x-y-z O 2 , 1 x 0.8) demonstrate superior cycling stability, positioning them as promising Ni-rich cathode candidates for next-generation lithium-ion batteries. However, increasing demand for higher energy density necessitates higher operation potential, which in turn exacerbates intrinsic challenges, such as poor chemical stability and diminished thermal stability. To address these challenges, an yttrium (Y) modification strategy has been carried out to enhance structural and interfacial stability. Compared to pristine, Y-modified samples show enhanced high-potential and high-temperature performances. In detail, it reveals a specific capacity of 228.5 mAh g −1 within an extended potential window of 3.0–4.5 V and retains 90.7% of its capacity after 200 cycles. When operated at an elevated temperature of 55 °C, it also presents a good capacity retention of 80.4%. The role of Y dopant has been systematically investigated using advanced techniques such as density functional theory (DFT) and in-situ experiments. Results indicate that Y primarily substitutes Ni sites, thereby stabilizing the oxygen framework to enhance cycling stability at a higher operation potential or elevated temperature. Moreover, the formation of surface-coated solid electrolyte layers effectively suppresses interfacial side reactions, contributing to improved cyclability under high-potential and high-temperature conditions.
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Nature Energy
·
2024
·Vol. 9
·期 3
·345-356
·
IF 49.7
Zhao Chen,Wang Chuanwei,Liu Xiang,Hwang Inhui,Li Tianyi,Zhou Xinwei,Diao Jiecheng,Deng Junjing,Qin Yan,Yang Zhenzhen,Wang Guanyi,Xu Wenqian,Sun Chengjun,Wu Longlong,Cha Wonsuk,Robinson Ian,Harder Ross,Jiang Yi,Bicer Tekin,Li Jun-Tao,Lu Wenquan,Li Luxi,Liu Yuzi,Sun Shi-Gang,Xu Gui-Liang,Amine Khalil
Surface reconstruction and the associated severe strain propagation have long been reported as the major cause of cathode failure during fast charging and long-term cycling. Despite tremendous attempts, no known strategies can simultaneously address the electro-chemomechanical instability without sacrificing energy and power density. Here we report an epitaxial entropy-assisted coating strategy for ultrahigh-Ni LiNi x Co y Mn 1− x − y O 2 ( x ≥ 0.9) cathodes via an oriented attachment-driven reaction between Wadsley–Roth phase-based oxides and the layered-oxide cathodes. The high anti-cracking and anti-corrosion tolerances as well as the fast ionic transport of the entropy-assisted surface effectively improved the fast charging/discharging capability, wide temperature tolerance and thermal stability of the ultrahigh-Ni cathodes. Comprehensive analysis from the primary and secondary particle level to the electrode level using multi-scale in situ synchrotron X-ray probes reveals greatly reduced lattice dislocations, anisotropic lattice strain and oxygen release as well as improved bulk/local structural stability, even when charging beyond the threshold state of charge (75%) of layered cathodes.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Xinbo Zhao,Huali Li,Weige Chen,Weijie Li,Zhiyu Han,Weihua Li
Conventional electromagnetic wave (EMW) absorbing materials often suffer from poor stability in humid and corrosive environments, limiting their real-world applications. In this work, carbon-based composites derived from Ti-Ni bimetallic metal-organic frameworks (MOFs) were synthesized via pyrolysis and investigated as dual-function materials for EMW absorption and corrosion protection. The composites exhibit excellent impedance matching and strong attenuation capability due to the synergistic interaction between the metal oxides and the carbon matrix. A minimum reflection loss of −40 dB and an effective absorption bandwidth of 4.61 GHz were achieved at an optimized thickness of 4.1 mm. Furthermore, upon incorporation into an epoxy resin coating, the composite displayed outstanding corrosion resistance. After immersion in a 3.5 wt% NaCl solution for 7 days, good stability was still maintained. This study presents a promising strategy for designing multifunctional materials with integrated EMW absorption and corrosion resistance, offering broad application potential in marine, aerospace, and communication sectors.
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高影响因子
RESEARCH ON CHEMICAL INTERMEDIATES
·
2025
·
IF 3.5
Zhu Lijun,Huang Guosheng,Liu Shuo,Jing Xiaohui,Yang Junwei,Xia Daohong
Isoalkanes are ideal gasoline components, and the isomerization reaction of light alkanes is the most effective way to increase the octane number of gasoline. Non-precious metal/zeolite catalysts are the mainstream bifunctional catalysts for alkane isomerization reactions, but there are still challenges in achieving high octane number components—multi-branched isoalkanes in isomerization reactions. In this article, Ni–heteropoly acid/zeolite alkane isomerization catalyst (Ni–HTA/Hβ) was prepared by impregnation method. Under optimized conditions, the conversion rate of n -hexane was 79.5%, the yield of isoalkanes was 78.7%, and the selectivity of isoalkanes was as high as 99.0%. In the product distribution, the Ni–HTA/Hβ catalyst can obtain more multi-branched isoalkanes, namely, 2,2-dimethylbutane and 2,3-dimethylbutane, with a total content of up to 19.2%, achieving the goal of further improving the yield of double-branched alkanes in C 6 alkane isomerization products.
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