Small
·
2026
·
IF 11.8
Yingjie Sun,Xudong Li,Peng Gao,Wenhao Jia,Shumin Liu,Robson Monteiro,Zhongzhu Liu,Luanna Parreira,Ruichen Zhu,Yongming Zhu,Liguang Wang
Material degradation in layered oxide cathodes, particularly mechanical degradation, presents a “chicken or egg” dilemma as it may originate from either the surface or the bulk. Surface-only or bulk-only modifications have proven insufficient to resolve these intrinsic issues. While combined surface-bulk strategies can mitigate degradation, they often require complex processes that increase costs and limit scalability. Here, we report a design that couples bulk structural stabilization with the in situ formation of a fast conductive interphase on Ni-rich layered oxides. This dual approach yields a robust bulk framework and a stable surface with accelerated reaction kinetics, enabling a high-rate capability of over 160 mAh g −1 at the current of 5 C and stable cycling over 200 cycles. Beyond performance gains, our results reveal atomic-scale insights into the interplay between structural evolution, ionic transport, and electrochemical stability, offering a practical pathway to durable high-nickel cathodes for fast-charging batteries.
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DOI
PubMed
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2026
·
IF 6.9
Xingtao Cheng,Kaijun Wei,Ziqiang Wu,Shilin Guo,Longbo Luo,Yi He
Inspired by biological surfaces such as lotus leaves and Stenocara beetles, superhydrophobic coatings have attracted considerable attention due to their exceptional water repellency, self-cleaning behavior, and corrosion resistance. In this work, Ni-Cu/HDTMS-MX superhydrophobic coatings were fabricated through the co-deposition of MXene with a Ni Cu coating, followed by surface modification using hexadecyltrimethoxysilane (HDTMS). The Ni-Cu/HDTMS-MX coatings exhibit excellent superhydrophobic performance, with a water contact angle (CA) of 155.1 ± 2.2° and a roll-off angle (RA) of 6 ± 0.5°, accompanied by effective water jet rebound, self-cleaning capability, and enhanced corrosion resistance. Electrochemical measurements demonstrate an order-of-magnitude reduction in corrosion rate (0.5 × 10 −3 mm·y −1 ) and corrosion current density (0.4 × 10 −7 A·cm −2 ), while the impedance modulus |Z| at 0.01 Hz for the Ni-Cu/HDTMS-MX coating reaches approximately 375% of that of the Ni Cu coating. The improved corrosion resistance is attributed to the labyrinth-like diffusion barrier introduced by MXene and the HDTMS-derived hydrophobic film, which significantly lowers the surface energy of the coating. Upon contact with aqueous media, the coating maintains a Cassie-Baxter wetting state, indicating stable superhydrophobic behavior. The entrapped air pockets within the hierarchical micro/nanostructure effectively block the penetration of corrosive species, thereby improving corrosion resistance in chloride-containing environments. This work provides a feasible strategy for designing durable superhydrophobic coatings for the long-term protection of carbon steel in harsh marine environments.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Liquan Xiong,Ying Wang,Di Gao,Yueqi Song,Dongsheng Chen
Hydrogen energy is the core of future clean energy, and the study of hydrogen evolution reaction (HER) electrocatalytic mechanisms is essential for efficient production. The development of efficient and low-cost electrocatalysts is a key challenge in achieving ideal hydrogen generation. In this study, a Ni-BDC/TpPa-1 heterojunction material was prepared for the first time, which was converted into a derived heterojunction material (NiO@Ni/N-C) after high-temperature pyrolysis treatment, exhibiting excellent electrocatalytic activity in an alkaline solution. Without iR compensation, the overpotential of HER is only 83 mV at a current density of 10 mA·cm⁻². Compared with thermally decomposed Ni-BDC and TpPa-1 monomer, its electrocatalytic activity is improved by 158 and 435 mV, respectively, and it exhibits excellent stability over 100 h. The design of this novel material offers a new solution for enhancing the efficiency of transition-metal-based catalysts.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Manli Wang,Zhicheng Liu,Ming Hou,Xu Luo,Wenbin Yang,Hongjie Zhang,Xiaoming Song,Zhigang Shao
The irreversible degradation of platinum-based catalysts caused by strong sulfur dioxide (SO₂) adsorption poses a primary obstacle to the oxygen reduction reaction (ORR), limiting the practical application of proton exchange membrane fuel cells. Herein, we design and synthesize an anti-SO 2 poisoning Pt-based catalyst comprising Pt nanoparticles anchored on a single-atom Ni-N-HCNs support. The obtained catalyst (Pt/Ni-N-HCNs) exhibits exceptional tolerance to SO₂ poisoning, demonstrating a minimal negative shift of only 47.7 mV in the half-wave potential after contamination, compared to the 79.4 mV shift observed for commercial Pt/C. More importantly, Pt/Ni-N-HCNs catalyst demonstrates significantly enhanced ORR performance, with a mass activity of 0.58 A mg Pt −1 and a specific activity of 1.57 mA cm −2 , representing 1.2-fold and 2.7-fold improvements over commercial Pt/C, respectively. Density functional theory (DFT) calculations and XPS results reveal that the strong metal-support interaction (SMSI) induces the downshift of the d-band center of Pt, thereby weakening SO 2 adsorption and facilitating SO 2 removal. Furthermore, the Ni N site in Ni-N-HCNs support exhibits high activity for SO 2 oxidation, promoting the effective removal of SO 2 from adjacent Pt sites. Both effects synergistically enhance the resistance to SO 2 poisoning of the Pt/Ni-N-HCNs catalyst without sacrificing ORR performance. This work provides insights into the design of poison-resistant electrocatalysts and the development of energy conversion systems with high environmental applicability.
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2026
·
IF 6.7
Qiyuexin Wang,Hanyu Li,Huan Li,Xueying Yang,Fangcheng Qiu,Dacheng Zhou,Zhengwen Yang,Xin Zhen,Jianbei Qiu
The implementation of liquid organic hydrogen carriers (LOHCs) is constrained by the high energy consumption and strong dependence on precious‑metal catalysts in conventional thermal processes. This work develops a fluorine-doped Mo-Ni-F/NF bifunctional electrode through a simple electrochemical deposition-sintering method for efficient electrochemical hydrogen storage using quinoxaline under ambient conditions. XRD and TEM characterization revealed a unique structure comprising a MoNi₄ shell with embedded Ni nanoparticles, while SEM and EDS mapping confirmed uniform fluoride distribution and enhanced surface morphology. XPS analysis indicated that fluoride modification improved surface characteristics without altering chemical states. The catalyst demonstrates exceptional performance in reversible quinoxaline hydrogenation (92.1 % conversion after 5 h, 95.6 % FE) and dehydrogenation (100 % conversion after 4 h, 97.2 % FE). DFT calculations showed that electron transfer between MoNi₄ and nickel nanoparticles enhanced catalytic activity, while fluorine modulation reduced the adsorption energy of quinoxaline on nickel (111) from −2.84 eV to −0.55 eV, and tetrahydroquinoxaline from −2.08 eV to −0.84 eV, mitigating catalyst poisoning. In situ Raman spectroscopy identified dynamically formed NiOOH as the active phase, which facilitates proton-coupled dehydrogenation via -OH/μ-O-Ni intermediates. This work provides novel catalytic materials and mechanistic insights for the development of low-cost, room-temperature, and highly effective electrochemical LOHC systems.
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DOI
高影响因子
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
·
2026
·
IF 6.2
Muhammad Chawla,Xiyue Lu,Mooeez ur Rehman,Fan Sun,Yu Chen,Wei Liu,Yongli Ma,Mingyan Liu,Yujun Zhao
The development of efficient and cost-effective catalysts utilizing non-noble metals for the conversion of biomass and biofuels and valuable chemicals is essential for sustainable energy production. Development of zeolite-based catalyst with high selectivity and stability is crucial for HDO process, yet it remains a significant challenge. HSSZ-13 as a support has not yet been explored in the HDO of phenolic compounds. In this work, we present hierarchical HSSZ-13 zeolite loaded with Ni particles, designed to possess a highly Lewis acid site. Ni loaded HSSZ-13 zeolites with different Si/Al ratios (30, 70, 110 and 400) were synthesized using citrate assisted incipient impregnation method. These catalysts were then evaluated for hydrodeoxygenation (HDO) of guaiacol into cyclohexane, and compared their performance against Ni/SiO 2 , commercial Ni/SiO 2(com) and Ni/Al 2 O 3 . The optimized Ni/HSSZ-13 having Si/Al ratio of 70, showed superior performance under mild conditions. This enhanced catalytic activity is attributed to a synergistic interaction between acidic sites and metallic Ni. Additionally, hierarchical pore structure of Ni/HSSZ-13, which improves Ni dispersion on the catalyst surface, thereby enhancing its performance. Ni 2 + ions residing inside the intracrystalline mesopores or present as isolated species within the HSSZ-13 framework generate Lewis acid sites. These sites greatly improve HDO performance and promote the reaction to produce more cyclohexane. Particularly, this catalyst showed strong ability to break both α-O-4 and β-O-4 bonds in different lignin compounds, highlighting its broad adaptability, durability and practical application. Overall, this catalyst offers an effective and economically feasible route for producing diesel range fuel from renewable biomass.
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DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 9
Ruina Zhang,Yugang Zhou,Tao Zhang,Yu Gao,Xunbin Yang,Yanshuo Li,Wei Fang
Alkaline water electrolysis (ALK) faces technological challenges including low electrolysis efficiency, high energy consumption, and limitation of membrane technology. Herein, we report a nickel-polyethersulfone (Ni-PES) composite membrane modified by platinum (Pt) to function simultaneously as a highly active hydrogen evolution reaction (HER) electrode and a hydrogen-selective membrane. The Ni-PES membrane was prepared by phase inversion tape casting and atmospheric sintering, in which PES polymer provides the structural skeleton and metallic nickel serves as the electronic conductor and HER catalyst. Moreover, proper heat-treatment changes the microstructure and hydrophobicity of Ni-PES membrane, and Pt electrodeposition significantly boosts HER activity. The optimized Pt@Ni-PES-400 membrane electrode achieves a low overpotential of 104.9 mV@100 mA cm −2 and a Tafel slope of 125.8 mV dec −1 in concentrated alkaline electrolyte (30 wt% KOH). Furthermore, we design and fabricate a H-type, diaphragm-free, and two-chamber electrolytic cell, which is separated by Ni-PES-based membrane. Such membrane-based H cell realizes the combination of hydrogen production and separation processes: the in-situ generated hydrogen via water electrolysis is transported through the Pt@Ni-PES-400 membrane to the gas collection chamber, with a hydrogen purity of up to 99.95 % and a hydrogen permeation rate of 0.18 mL min −1 cm −2 at an overpotential of −500 mV, and the cell performance remains stable during 100 h of operation.
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高影响因子
Crystals
·
2026
·Vol. 16
·期 1
·51
·
IF 2.4
Xi Shi,Shiyuan Zhu,Qiongyu Zhou,Bo Liang,Jun Li,Guangji Li,Longquan Chen,Peijun Xu
Ni-Mo alloy coating has shown exciting potential as a candidate to replace chromium coating. In this paper, Ni-Mo alloy coatings were successfully electrodeposited from a citrate/ammonia bath, and the effect of the bath pH values over a wide range (4–10) on the characteristics and corrosion resistance of Ni-Mo alloy coating was studied in detail. Results show that all the deposited Ni-Mo alloy coatings consist of a crystalline solid-solution Ni(Mo) fcc structure. An increase in bath pH values could facilitate the deposition of Mo, thereby increasing the Mo content and decreasing the crystallite size of Ni-Mo alloy coatings. However, there are subtle gaps between the coarse grains on the surface of the Ni-Mo alloy coating deposited at pH 10. These subtle gaps tend to form between the coarse grains on the surface of the electrodeposited Ni-Mo alloy coating because of the relatively high Mo content, refined grains, and appropriate morphology. The Ni-Mo alloy coating deposited at pH 9 exhibits optimal corrosion resistance, attributed to its lowest corrosion current densityicorr(7.31 × 10−6A cm−2), the strongest polarization resistance (11.13 kΩ·cm−2), and impedance value, which are mainly contributed to by the coating resistance and charge-transfer resistance.
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DOI
高影响因子
Molecular Catalysis
·
2018
·
IF 0
Liangliang Zhang,Xiao Chen,Zhijian Peng,Changhai Liang
Chemoselective hydrogenation of C C and C O bonds in the cinnamaldehyde (CMA), was successfully performed with highly dispersed transition metal silicides-embedded in the porous carbon matrix (M 2 Si@C (M = Fe, Co, Ni)) nanocatalysts with a particle size of 8–12 nm, which were synthesized by a facile approach via microwave-assisted chemical vapor deposition (MWCVD) using organosilane and metal-organic-framework (MOFs-74)-templated porous carbon matrix-encapsulated transition metal (M@C) precursors. Compared with M@C, the activity of M 2 Si@C (M = Fe, Co, Ni) nanocatalysts obviously increases, which can be attributed that the overlayered carbon on metals has been destroyed during MWCVD processing, leading to the exposure of more active sites of catalysts. Due to the inherent electronic properties of metallic active sites in the metal silicides, the catalytic activity of Ni 2 Si@C was much higher than that of Co 2 Si@C and Fe 2 Si@C in the chemoselective hydrogenation of CMA. At total conversion of CMA, the Co 2 Si@C nanocatalyst was chemoselective for the hydrogenation of polar C O bonds (selectivity to cinnamyl alcohol of ∼60%), whereas Ni 2 Si@C nanocatalyst was highly chemoselective for the hydrogenation of non-polar C C bonds (selectivity to hydrocinnamaldehyde of ∼90%). The doping of silicon atoms with more electropositive into metals lattices in the M-Si intermetallic compounds (IMCs) influenced the adsorption of substrate molecule on the catalyst surface, slightly leading to the different reaction routes. In addition, the Co 2 Si@C and Ni 2 Si@C respectively maintain the robust stability in the hydrogenation of CMA. This result provided guidance on the design of catalyst via tuning the polarization properties of the inter-atoms in the IMCs according to the target product.
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DOI
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Zengpeng Li,Jianfeng Dai,Danqiang Huang,XinChao Wen
BiFeO 3 –(Co/Ni)Fe 2 O 4 (BFO–(C/N)FO) multiferroic nanofibers were synthesized using a self-assembly coaxial electrospinning technique . The structure, exchange bias effect, ferromagnetic, and ferroelectric properties were investigated using various physical and chemical characterization approaches. The coexistence of a spinel–perovskite mixed structure was verified in (BFO–(C/N)FO) nanofibers by X-ray diffraction and X-ray photoelectron spectroscopy . Raman spectra revealed a distorted crystal structure or more complex phase configurations with overlapping features. Compared to the pure BFO nanofibers, the magnetic properties showed a significantly increase after recombination. BFO–NFO nanofibers exhibited higher exchange coupling through switching field distribution analysis. The ferroelectric properties of the composite nanofibers were considerably changed compared to pure BFO nanofibers, which can be attributed to the presence of impurities (Bi 2 Fe 4 O 9 ) and the asymmetrical spin in spinel ferrites. The BFO–CFO nanofibers exhibited larger leakage current and coercive electric field than the other two types of nanofibers. Hence, coupling of the structural distortion and crystal phases are important approaches in altering the ferroelectric and ferromagnetic properties. These results suggest that the BFO–(C/N)FO nanofibers have potential applications in multifunctional nanodevices .
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2022
·
IF 9.965
Zhao Liu,Huawei He,Yuxuan Liu,Yi Zhang,Jiawei Shi,Jie Xiong,Shunfa Zhou,Jing Li,Liyuan Fan,Weiwei Cai
Practical structural design and electronic regulation are significant for synthesising efficient electrocatalysts. Therefore, a facile soft-template approach has been applied to successfully grow Ni/Mo 2 C heterojunction nanosheet arrays on nickel foam (NF) skeleton (NS-Ni/Mo 2 C@NF) using polyvinylpyrrolidone (PVP) as a soft template. The density functional theory (DFT) calculations reveal that abundant Ni/Mo 2 C heterojunction in NS-Ni/Mo 2 C@NF can provide many active sites with a moderate hydrogen adsorption free energy (ΔG H* , 0.037 eV). Benefiting from this nanosheet array structure and abundant Ni/Mo 2 C heterojunctions, the NS-Ni/Mo 2 C@NF catalyst can efficiently catalyze HER, especially at large current densities. As a result, only 151 and 271 mV overpotentials are needed to deliver 100 and 1000 mA/cm 2 HER, respectively. More importantly, the hydrogen production testing with NS-Ni/Mo 2 C@NF as the working electrode can run stably for 500 h without activity decay under the current density of 500 mA/cm 2 commonly used in industrial water electrolyzers, indicating that NS-Ni/Mo 2 C@NF has broad application prospects.
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DOI
高影响因子
CARBON
·
2020
·
IF 8.821
Lei Lei,Zhengjun Yao,Jintang Zhou,Wenjian Zheng,Bo Wei,Jiaqi Zu,Keyu Yan
The hydrangea-like Ni/NiO/C composites have been successfully synthesized by in-situ pyrolysis stemmed from Ni-MOFs. The composition and structure can be adjusted by controlling the pyrolysis temperature, and it leads to the graphitization degree and electromagnetic parameters. A broad effective absorption bandwidth of the composite up to 5.67 GHz with the maximum reflection loss of −47.72 dB in 1.9 mm thickness. The results demonstrate hydrangea-like Ni/NiO/C composites have superior microwave absorption resulted from the synergistic effect between the unique structure, dielectric loss, and magnetic loss. Therefore, this work confirmed that hydrangea-like structure composite can be an ideal candidate for highly efficient microwave absorption materials with a facile preparation process and flexible control of electromagnetic parameters.
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DOI
高影响因子
危险品化学品经营许可证（带存储）