APPLIED CATALYSIS A-GENERAL
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2026
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IF 4.8
Zhiliang Guo,Huiyu Liu,Bo Jin,Rufang Peng,Qingchun Zhang
A practical strategy was proposed to prepare interlayer Ni-Co DACs. • The Ni-Co DACs achieve a high FE CO of 97% at −0.7 V. • The interlayer Ni-Co DACs possess superior catalytic activity, selectivity, and durability. Developing highly efficient, selective, and stable electrocatalysts for the electrochemical CO 2 reduction reaction (CO 2 RR) is crucial for mitigating energy and environmental challenges. This work presents a practical strategy for synthesizing spatially discrete yet strongly synergistic interlayer dual-metal atom catalysts (DACs) with a Ni-Co configuration through pyrolysis of core-shell zeolite imidazolate frameworks (ZIFs). The resulting CoNC@NiNC catalyst features a core-shell structure where CoNC is encapsulated within NiNC. The strong interaction between the layers of NiNC and CoNC increases the density of active sites, ensures the stability of the structure, facilitates mass or charge transfer, and may produce synergistic interaction between the active sites in core and shell, which can effectively catalyze the conversion of CO 2 to CO. Benefiting from the unique interlayer Ni-Co configuration, the CoNC@NiNC electrocatalyst achieved minimal onset overpotential, high CO Faraday efficiency (FE CO = 97%), and robust operational stability at −0.7 V vs. reversible hydrogen electrode ( vs. RHE). This study demonstrates the promising potential of interlayer DACs for efficient CO 2 RR, more importantly, establishes a viable method for developing interlayer DACs, utilizes the strong interlayer interactions to drive this complex reaction, and inspires further exploration of interlayer DACs in energy conversion and beyond. Download: Download high-res image (152KB) Download: Download full-size image The interlayer dual-metal atom catalysts (DACs) with controlled local coordination environments and three-dimensional spatial structures can efficiently convert CO 2 into high-value chemicals or fuels. Herein, a practical strategy was proposed to prepare interlayer Ni-Co DACs, which have core-shell structure consisted of CoNC encapsulated within NiNC (denoted as CoNC@NiNC), by self-assembly and high-temperature pyrolysis core-shell zeolite imidazolate frameworks (ZIFs) precursor. The practice reveal that the interlayer Ni-Co DACs possess superior catalytic activity, selectivity, and durability, which demonstrates the great potential as highly efficient catalysts for CO 2 RR.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123407
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IF 7.5
Inam Ullah,Syed Musab Ahmed,Hao Lou,Zeeshan Abbasi,Zubair Ahmad,Muhammad Usman,Wenlong Wu,Zhandong Wang
The practical application of CO 2 methanation is often hindered by water-induced limitations. Conventional sorbent-assisted catalyst systems employ adsorbents merely as passive water scavengers, neglecting their potential role in reaction kinetics. Herein, we report a layer-by-layer catalyst-zeolite architecture that overcomes these limitations by synergistically promoting low-temperature CO 2 activation while enabling effective in-situ water management. This ordered configuration maximizes interfacial contact, allowing the hydrophilic NaA zeolite to actively capture and activate CO 2 at reduced temperatures while continuously removing the water by-product from the Ni/ZrO 2 surface. Consequently, the system achieves 81% CO 2 conversion with 100% CH 4 selectivity at 200 ℃. This work demonstrates that integrating Ni/ZrO 2 catalyst with a functional NaA zeolite provides an energy-efficient and robust strategy for sustained low-temperature CO 2 methanation.
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ACS Nano
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2026
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IF 17.3
Deqin Zeng,Jinze Wang,Long Chen,Menghui Wang,Sen Jiang,Feng Shi,Shuoqing Zhang,Sheng Gao,Lili Zhang,Menghua Li,Liping Wang,Hailin Zhu,Ruhong Li,Yuhai Guo,Yuan Yu
Elevating the charging cutoff voltage is critical for practical lithium metal batteries (LMBs); however, this strategy is severely hampered by solvent parasitic reactions. Despite advances in electrode/electrolyte interface engineering, solvent molecules near the interface remain attracted by cathodic parasitic-reaction sites, resulting in solvent decomposition. Here, we propose a separator-adsorbed solvent strategy, establishing a separator–electrolyte interface enriched with adsorption sites that prevents solvent molecules from being captured by cathodic parasitic-reaction sites. The selected polytetrafluoroethylene (PTFE) separator serves to interact with positively charged regions of carbonate solvents. This combination facilitates robust separator–solvent interactions, including C–H···F weak hydrogen bonds and n → π* interactions. Significantly, these interactions generate numerous solvent adsorption sites at the separator–electrolyte interface, which compete with the active cathode surface for solvent molecules. This enables the solvent molecules to escape the attraction of cathodic parasitic-reaction sites and preferentially accumulate on the separator surface, thereby significantly suppressing solvent decomposition and stabilizing the cathode interface. The gel polymer electrolyte with a polytetrafluoroethylene separator (GPE–PTFE) enables a 4.4 V Li||LiNi0.8Co0.1Mn0.1O2 cell to achieve a high-capacity retention rate, maintaining 80% capacity over 671 cycles, nearly double the 368 cycles achieved using a polyethylene (PE) separator. Under an ultrahigh cutoff voltage of 4.7 V, the capacity retention reaches 90% after 100 cycles. This work proposes a paradigm for realizing ultrahigh-voltage LMBs through the separator–electrolyte interface.
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高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2026
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IF 3.9
Xiaomeng Sun,Yanfei Zhu,Weipei Chen,Jinghua Xu,Zhenyu Shi,Dianqing Li,Yanan Liu
Metal and acid sites are regarded as the most vital catalytically active components in heterogeneous catalysis. In this paper, we simply constructed the abundant unsaturated penta-coordinated species as Brønsted acid sites (AB), which could collaborate with Fe atoms-diluted and electron-modified Ni species (diluted Niδ−) to generate the bifunctional sites. The presence and integration of these two catalytically active sites significantly improved the reaction efficiency and altered the product distribution for the selective dehydrochlorination of 1,1,1,3-tetrachloropropane toward the target 1,1,3-trichloropropene. Specifically, the obtained catalysts with the synergistic sites demonstrated the synergistic catalytic functions: AB sites served as the adsorption center for 1,1,1,3-tetrachloropropane, while Fe-diluted and electron-enriched Ni species were responsible for activating hydrogen species, which further overflowed to the surface AB sites to react with the adsorbed C–Cl bonds. This work underscores the importance of assembling metal and acid sites to develop state-of-the-art catalysts with tailored dehydrochlorination performance, offering the potential for more efficient and selective industrial processes.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Qiankun Xu,Rui Wang
MOF-derived NiCo/NPC electrocatalyst was constructed with tailored M-N 4 coordination environments. • Ni incorporation regulated Co electronic structures for accelerated oxygen evolution reaction. • DFT calculations elucidated the electronic modulation mechanism and optimized OER energetics. The development of efficient, low-cost, and scalable oxygen evolution reaction (OER) catalysts is crucial for practical water electrolysis. Herein, a MOF-derived NiCo/NPC electrocatalyst containing predominantly atomically dispersed Co–N 4 /Ni–N 4 sites is prepared by controlled Ni incorporation into ZIF-67-derived porous carbon. The optimized 50% NiCo/NPC exhibits an overpotential of 207 mV at 10 m⋅A cm⁻ 2 , a Tafel slope of 51.6 mV⋅dec⁻ 1 , and stable operation for over 100 h, outperforming Co/NPC and commercial RuO 2 . Aberration-corrected HAADF-STEM directly visualizes atomically dispersed Co and Ni species, while synchrotron X-ray absorption spectroscopy confirms the Co–N 4 coordination environment and reveals that Ni incorporation modifies the electronic environment of the Co sites. Density functional theory calculations further show that Ni incorporation shifts the Co d -band center toward the Fermi level and lowers the energy barrier of the rate-determining step, accounting for the enhanced OER activity. In an anion exchange membrane water electrolyzer, the catalyst delivers current densities of 1000 and 4000 mA ⋅cm⁻ 2 at 2.02 and 2.46 V, respectively. This work provides an effective strategy for improving the OER performance of MOF-derived electrocatalysts through regulating the electronic structure of Co active sites. Download: Download high-res image (186KB) Download: Download full-size image Ni-doped ZIF-67 is converted via pyrolysis into morphology-retained Co–N 4 and Ni–N 4 single-atom active sites embedded in N-doped porous carbon (NiCo/NPC). Benefiting from the Ni-induced electronic modulation of Co active sites, together with the enhanced conductivity of the carbon framework, the catalyst achieves efficient and durable OER performance with a low overpotential.
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SENSORS AND ACTUATORS B-CHEMICAL
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2026
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IF 8.3
Yingjie Li,Na Zhao,Yilin Chen,Jun Zhang,Xianghong Liu
For metal oxide semiconductor (MOS) gas sensors, achieving rapid and highly sensitive responses at room temperature (RT) remains a significant challenge. In this study, Ni-doped SnO 2 nanoparticles (NPs) were synthesized via a sol-gel method. The incorporation of nickel ions substantially enhanced the RT NO 2 sensing performance of SnO 2 . At an optimal doping concentration (5 at%), the SnO 2 NPs exhibited high sensitivity, excellent selectivity, and good stability, with a nearly 120-fold enhancement in sensor response. The excellent sensor performance can be attributed to the fact that when Ni 2 + enters the SnO 2 lattice and replaces Sn 4+ , it disrupts the defect balance in the SnO 2 lattice. The presence of Ni 2+ in the SnO 2 crystal captures free electrons in the sensitive material, forming oxygen ions and oxygen vacancies, which alters the defect balance of the gas-sensitive element and promotes the adsorption of NO 2 on the SnO 2 surface. This doping strategy effectively lowered the operating temperature of SnO 2 , enabling reliable NO 2 detection under RT conditions. Additionally, the experimental detection limit of the sensor reached as low as 100 ppb, far below the threshold of 200 ppb recommended by the American Conference of Governmental Industrial Hygienists (ACGIH). This work provides an effective sensitization strategy for developing RT gas sensors.
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CHEMISTRY-A EUROPEAN JOURNAL
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2025
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IF 3.7
Zhiqiang Zheng,Tian Qiu,Zhanghua Fu,Chuang Chen,Huancai Li,Cheng Hu
Graphical The heteroepitaxial Li deposition occurs on single-crystalline Ni(110) substrates, exhibiting the same {110}<001> texture with the substrate and a planar morphology. Using the {110}-textured epitaxial layer as the Li anode, the Li||LiPeO 4 full cell presents improved cycle life, compared with the {111}-textured Li anode and untextured Li anode. Lithium (Li) metal is recognized as a highly promising anode material for next-generation high-energy-density batteries. Nonetheless, dendrite growth and low coulombic efficiency (CE) significantly impede the practical application of Li metal anodes. The deposition morphology and chemical stability of Li are intricately linked to its crystallographic orientation. This study presents a substrate engineering approach that employs single-crystalline nickel (Ni) to facilitate epitaxial Li deposition due to their excellent lattice matching. The findings reveal that the Ni(110) substrate exhibits a more pronounced heteroepitaxial effect than Ni(111). A robust {110}-textured Li deposition was prepared on Ni(110) with a uniform planar morphology due to the lower Li self-diffusion barrier on the Li(110) plane. The {110}-textured Li epitaxial deposition improves the cycling stability in Ni-Li cells and full cells. Notably, the Li||LiFePO 4 full cell utilizing the {110}-textured Li anode exhibits a high capacity retention of 109.6 mAh cm −2 over 350 cycles at 1 C under a low negative-to-positive capacity ratio of 1.26. This investigation highlights the crucial role of substrate-induced heteroepitaxy in improving Li plating/stripping dynamics and provides insights for the development of stable Li metal anodes by crystallographic orientation modification.
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高影响因子
LANGMUIR
·
2025
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IF 3.9
Wen-Long Ren,Yi-kai Wang,Mingxing Zhang,Chengchen Zhang,Qian Huang,Yuyang Zeng,Zhi-Wen Lin,Kaige Guo,Dehao Xiong,Chen-Guang Zhu
The development of efficient catalysts to regulate the thermal decomposition and combustion behavior of ammonium perchlorate (AP) is essential for improving the energy output of solid propellants. In this study, a LaFe0.5Co0.5O3/Ni–Fe Prussian Blue Analogue (PBA) composite was designed to synergistically enhance the decomposition kinetics and combustion performance of AP. The composite integrates perovskite-type oxides with a conductive PBA framework, forming a bifunctional electronic–geometric catalytic interface. Systematic characterization revealed that the optimized Ni–Fe PBA effectively balanced oxygen vacancy generation, Fe2+/Fe3+ redox cycling, and a multistage pore structure. This led to a 106.9 °C reduction in AP’s thermal decomposition temperature and a 56.2% decrease in activation energy. Combustion tests demonstrated a 48.1% increase in burning rate, a 35.0% increase in flame area, and a 45.8% increase in luminescence intensity, which may be attributed to improved charge transfer and gas diffusion facilitated by interfacial synergy between the two components. This work offers a strategy for designing high-performance catalysts via interfacial engineering, with promising potential for broad applications in fuel energy modulation.
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高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Sain Bux Jamali,Tauqeer Haidar Qamar,Sibt ul Hassan,Nouman Ahmed,Ijaz Ahmad,Pengkun Xia,Shakeel Ahmad,Shengxiang Huang,Lianwen Deng
The escalating demand for effective electromagnetic interference shielding, particularly in the challenging low-frequency microwave range such as S-band, underscores the need for advanced high-performance electromagnetic absorbing materials. Herein, three-dimensional (3D) nickel/nitrogen-doped porous carbon foam decorated with carbon spheres (3D Ni/NPCF@CS) was synthesized for S-band microwave absorption. This unique design capitalizes on the synergistic interplay between the highly conductive and porous 3D carbon skeleton, the magnetic properties of encapsulated Ni nanoparticles, and the enhanced interfacial polarization provided by the conductive polypyrrole coating. This engineered hierarchical architecture created abundant heterogeneous interfaces and microwave loss pathways. Detailed electromagnetic analysis revealed that the optimized Ni/NPCF@CS composite material exhibited exceptional reflection loss (RL) performance of −57.8 dB at 3.44 GHz. The dominant absorption mechanisms, including dielectric loss from dipole polarization, conductive loss, and magnetic loss from Ni nanoparticles, were thoroughly investigated and discussed. This study provides valuable insights into the development of 3D-foam-based microwave-absorbing materials, particularly for their practical implementation in the S-band.
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COMPOSITES COMMUNICATIONS
·
2025
·
IF 7.7
Guodong Han,Fangyuan Qi,Song Zhao,Yuxiang Jia,Junxiang Zhou,Yudeng Wang,Sai Sui,Bo Feng,Jun Wang,Jiafu Wang,Shaobo Qu
The microstructure design of new carbon nanomaterials always achieves unimaginable characteristics and performance. In this work, the influence of surface roughness ( Ra ) of porous carbon derived from Metal-Organic-Frameworks (MOFs) with different shapes on impedance matching and effective absorption bandwidth (EAB) has been given special attention. The rod shaped, spherical and sheet-like porous carbon materials are obtained at 700 °C from Ni-BTC, Ni-DOBDC and Ni-BPDC. The Ni-DOBDC-700 spherical porous carbon with a relatively large Ra (290 nm) exhibits excellent absorption performance. The minmium reflection loss ( RL min ) is -20.8 dB at 14 GHz and the EAB can reach at 6.7 GHz (11.1-17.8 GHz) when the thickness is 2.2 mm, which covers the Ku band. The spherical porous carbon, the Ni alloys and NiO particles serves the conduction channel, the sources of magnetic loss and interface polarization, respectively. The radar cross section (RCS) value of Ni-DOBDC-700 is less than -10 dB m 2 within the range of -60° to 60° and the maximum scattering intensity is only -16.5 dB m 2 at the thickness of 2 mm. The results provide a new design strategy for fabricating high performance MAMs with different morophology of MOFs derived carbon materials.
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SENSORS AND ACTUATORS B-CHEMICAL
·
2025
·
IF 7.7
Linghong Xue,Jiale Dang,Xu Li,Fangmeng Liu,Ziyu Qin,Qingji Wang
Cardiovascular disease, as the world's highest mortality disease category, is prone to acute myocardial infarction and stroke, posing a serious threat to human health. In recent years, breath analysis technology, with its significant advantages of being non-invasive, easy to operate, cost-effective, and portable, has emerged as a research hotspot and frontier in the field of early warning and diagnosis of cardiovascular diseases by detecting the concentration of CO, a hallmark gas of cardiovascular diseases. Among various detection methods, metal oxide semiconductor (MOS) sensors have demonstrated significant development potential in breath analysis applications due to their comprehensive advantages, including high sensitivity, rapid response characteristics, excellent environmental adaptability, and cost-effectiveness, gradually establishing themselves as the most promising technical solution in this field. In this study, we successfully developed a high-performance CO sensor based on nickel-doped zinc oxide (Ni-ZnO) nanosheets using the aerosol-assisted chemical vapor deposition (AACVD) technique. By optimizing the nickel doping ratio and the nanosheet structure, the sensor achieved a detection limit as low as 5 ppb for CO, while its response to 100 ppm of CO was more than 20 times higher than 100 ppm of other gases, demonstrating excellent selectivity. Therefore, CO sensors based on Ni-doped ZnO provide important technical support for the prevention and early diagnosis of cardiovascular diseases.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2021
·Vol. 46
·期 66
·33186-33196
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IF 5.816
Xinjun Li,Yaokun Fu,Yichao Xie,Lian Cong,Han Yu,Lu Zhang,Yuan Li,Shumin Han
Additive doping is one of the effective methods to overcome the shortcomings of MgH 2 on the aspect of relatively high operating temperatures and slow desorption kinetics. In this paper, hollow g-C 3 N 4 (TCN) tubes with a diameter of 2 μm are synthesized through the hydrothermal and high-temperature pyrolysis methods, and then nickel is chemically reduced onto TCN to form Ni/TCN composite at 278 K. Ni/TCN is then introduced into the MgH 2 /Mg system by means of hydriding combustion and ball milling. The MgH 2 –Ni/TCN composite starts to release hydrogen at 535 K, which is 116 K lower than the as-milled MgH 2 (651 K). The MgH 2 –Ni/TCN composite absorbs 5.24 wt% H 2 within 3500 s at 423 K, and takes up 3.56 wt% H 2 within 3500 s, even at a temperature as low as 373 K. The apparent activation energy ( E a ) of the MgH 2 decreases from 161.1 to 82.6 kJ/mol by the addition of Ni/TCN. Moreover, the MgH 2 –Ni/TCN sample shows excellent cycle stability, with a dehydrogenation capacity retention rate of 98.0% after 10 cycles. The carbon material enhances sorption kinetics by dispersing and stabilizating MgH 2 . Otherwise, the phase transformation between Mg 2 NiH 4 and Mg 2 NiH 0.3 accelerates the re/dehydrogenation reaction of the composite.
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