JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Dandan Zhao,Yuchun Ren,Chen Fu,Yiqing Liu,Dongmei Wang,Zhengjun Gong,How Yong Ng
The rapid expansion of the shale gas industry has led to the production of large volumes of wastewater containing valuable lithium resources. Although various lithium-ion sieve (LIS) materials have been developed for selective lithium recovery from shale gas wastewater (SGW), their adsorption capacity and selectivity are severely limited under natural near-neutral conditions. Here, a polydopamine (PDA)-modified Ni–H 2 TiO 3 (HTO)/MXene/polysulfone (PSF) composite membrane was developed for sustainable and selective lithium recovery from real SGW at its natural pH of 7.92. Surface polymerization of dopamine modulated the zeta potential of the membrane, effectively enhancing its Li + adsorption performance. The PDA/Ni-HTO/MXene/PSF membrane achieved a high adsorption capacity of 38.31 mg g −1 within 2 h, while maintaining excellent cycling stability and fouling resistance. Mechanistic analyses revealed that the synergistic effects between PDA and MXene enhanced the electronic capture ability of Ti–O and C–O coordination sites and activated interfacial π-electronic structures and charge redistribution, thereby promoting Li + adsorption and transport. The integrated membrane-based approach couples lithium recovery with wastewater treatment, offering a pathway for simultaneous resource recovery with reduced chemical input and secondary salinity loading.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Qi Liu,Wenrou Yu,Anping Liu,Lianjie Zhou,Wen Tang,Yingzhou Huang
Multiple Synergistic SERS Enhancement of 3D micro-nano Ni-foam@MoS₂ • Overcomes EBC matrix interference for ultrasensitive 2.95 nM lactate detection • AI algorithms decode complex SERS spectra for non-invasive health monitoring. To address the critical demand for highly sensitive sensing interfaces in non-invasive exhaled breath condensate (EBC) analysis, this study develops a high-performance SERS substrate featuring interlaced, needle-like MoS₂ nanoclusters grown in situ on a 3D nickel foam scaffold (Ni-foam@MoS₂). This architecture effectively overcomes the severe signal heterogeneity and poor wearable compatibility that typically plague traditional plasmonic metal substrates. The system synergizes multiple coupled SERS enhancement mechanisms: the 3D porous scaffold and interwoven needle-like arrays form abundant optical microcavities. These microcavities effectively confine incident light and significantly enhance light-matter interactions, thereby inducing electromagnetic enhancement. Concurrently, the interlaced MoS₂ arrays not only efficiently concentrate trace analytes but also induce substantial chemical mechanism via vigorous charge transfer. Consequently, the substrate achieves an outstanding average enhancement factor of 1.88 × 10 9 , alongside superb signal reproducibility and long-term environmental stability. By deploying this Ni-foam@MoS₂ substrate for the rapid off-line analysis of simulated exhaled breath condensate (EBC), we achieved the ultrasensitive detection of lactate (LA), a critical metabolic biomarker, with a limit of detection as low as 2.95 nM. Furthermore, coupling these complex spectral datasets with advanced artificial intelligence algorithms enabled the highly accurate classification of concentration-dependent LA spectral variations, demonstrating significant proof-of-concept potential for mask-integrated biomolecular sensing and non-invasive physiological monitoring.
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Nanomaterials
·
2026
·Vol. 16
·期 13
·820
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IF 4.8
Xiaomin Tian,Yuan Cao,Huilin Zhou,Fanjie Tan,Ziqin Zhang,Liying Pei,Yi Ma,Jianzhi Gao,Wenliang Zhu,Minghu Pan
Tuning the d -band electronic structure of non-noble-metal catalysts is a central strategy for an alkaline hydrogen evolution reaction (HER), yet how composition controls the d orbital in multi-Wyckoff-site layered systems remains insufficiently understood. Here, layered (Fe 1- x Ni x ) 3 GaTe 2 single crystals ( x = 0.2–1.0) were synthesized by the self-flux method as a platform to address this question. Single-crystal XRD and EDS confirm that Ni is uniformly incorporated into the parent P6 3 /mmc framework while inducing a composition-dependent lattice evolution. Electrochemical measurements in 1.0 M KOH reveal a clear volcano-shaped composition dependence, peaking at x = 0.6, where the lowest overpotential, the smallest Tafel slope (94 mV dec −1 ), the lowest charge-transfer resistance and the largest double-layer capacitance are simultaneously reached. First-principles calculations show that Ni doping reshapes the Fe-site d orbital strongly composition-dependent rate: the Fe d -band center upshifts rapidly by ~0.5 eV between x = 0.4 and x = 0.6, while the Ni d -band center stays nearly fixed in the same composition range. The maximum of HER activity therefore aligns with a steep upshift of the Fe d -band center rather than with the Ni content itself. Charge-density mapping of (Fe 0.4 Ni 0.6 ) 3 GaTe 2 further demonstrates that the electron-enriched regions are located on the Fe and interlayer Ni3 sublattices that dominate the d states near E F .
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PubMed
高影响因子
Energy Materials
·
2026
·Vol. 6
·期 8
·N
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IF 11.9
Jingjing Qie\u003Csup\u003E1,\u003C\u002Fsup\u003E,Huiyue Sun\u003Csup\u003E1,\u003C\u002Fsup\u003E,Shuang Geng\u003Csup\u003E1,\u003C\u002Fsup\u003E,Yongqi Shang\u003Csup\u003E1\u003C\u002Fsup\u003E,Qunzhi Huang\u003Csup\u003E1\u003C\u002Fsup\u003E,Jishi Wei\u003Csup\u003E1,2,\u003C\u002Fsup\u003E,Ke Chen\u003Csup\u003E1\u003C\u002Fsup\u003E,Taifeng Liu\u003Csup\u003E3\u003C\u002Fsup\u003E,Shuxi Dai\u003Csup\u003E1,\u003C\u002Fsup\u003E,Wuxing Hua\u003Csup\u003E1,4,\u003C\u002Fsup\u003E,Zhen Zhou\u003Csup\u003E4\u003C\u002Fsup\u003E
Developing an effective electrocatalyst to regulate the kinetics of the sulfur redox reaction is essential for inhibiting polysulfide shuttling in Li-S batteries. Here, the electronic structure of CoTe, modulated by cation doping, is systematically investigated to elucidate how orbital hybridization optimizes sulfur redox electrocatalysis. Among the cation-doped CoTe compounds, the introduction of Ni dopants results in the most significant shift of the p-band center of CoTe (Ni-CoTe) towards the Fermi energy level, which facilitates the formation of numerous Te vacancies on the CoTe surface. This structural configuration endows CoTe with a multitude of active sites that bind polysulfide intermediates, lowering the activation energy (Ea) of the sulfur reduction reaction, specifically reducing the Ea for the conversion of lithium polysulfides to Li2S from 0.73 eV to 0.65 eV. As a result, the Li-S battery with Ni-CoTe catalyst delivers exceptional cyclability, with a low-capacity decay of 0.049% per cycle over 1,000 cycles at 2.0 C. Moreover, an initial areal capacity of 13.5 mAh cm-2 at 0.02 C is achieved with a high sulfur loading (10.0 mg cm-2) and a low electrolyte-to-sulfur ratio (5.0 µL mg-1). These findings will provide fundamental insights into orbital-level catalyst design principles for advanced sulfur electrochemistry.
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JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
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2026
·
IF 6.7
Hong Tian,Ziwen Zhao,Zhangjun Huang,Yanshan Yin,Song Ren,Shan Cheng
The presence of nitrogen-containing compounds (NCCs) in bio-oil severely limits its downstream utilization as a clean fuel. To address this issue, a catalytic strategy combining hierarchical pore construction and bimetallic active-site modification was developed for the deep denitrogenation and upgrading of biomass pyrolysis oil. Bamboo (BB) and wheat straw (WS) were selected as representative forestry and agricultural residues, respectively, and Ni-Co bimetal-modified HZSM-5 catalysts were prepared. Appropriate alkali treatment significantly improved the pore structure of HZSM-5, increasing its specific surface area from 383.9 to 409.12 m 2 /g, while Ni and Co introduction effectively regulated the distribution of acidic sites. As a result, the modified catalysts enhanced the pyrolysis of BB and WS and improved the quality of the resulting bio-oils. Over 6Ni0.5Co-HR5, aromatic selectivity reached 51.06% for BB and 50.66% for WS. GC/MS analysis showed that the catalyst promoted the transformation of nitrogen species from kinetically unstable chain-like compounds into more stable cyclic structures, facilitating their further removal. Among the catalysts, 6Ni0.5Co-HR5 exhibited the best denitrogenation performance, reducing the relative total nitrogen content in BB- and WS-derived bio-oils to 0.89% and 0.67%, respectively, corresponding to decreases of 96.34% and 93.02% compared with non-catalytic pyrolysis. This superior perf ormance was attributed to the synergistic effect of the hierarchical pore structure and Ni-Co bimetallic sites. The results demonstrate good feedstock adaptability of the catalyst and provide an effective route for producing low-nitrogen, aromatic-rich bio-oil.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
Yong Wang,Guangshuo Wang,Xiaoxiong Li,Yue Han,Yuanzhe Li,Yanlei Zhang,Yalei Li,Yusen He,Zhixiao Zhang,Yichuan Huang
The redox kinetics of lithium polysulfides (LiPSs) result from the intrinsic insulating nature of sulfur and the weak interaction between hosts and LiPSs. Constructing heterostructures with built-in electric fields is a promising strategy to accelerate charge transfer; however, the limited active sites and suboptimal electronic configuration at the interface often restrict their catalytic efficiency. Herein, we propose an atomic-level modulation strategy by incorporating isolated Cu atoms into a Mott-Schottky Ni/NiO heterostructure to create a multifunctional electrocatalytic layer for Li S batteries. The introduction of atomic Cu not only induces abundant oxygen vacancies but also triggers a selective upward shift of the d-band center, which synergizes with the interfacial electric field to optimize the electron redistribution. This electronic restructuring significantly enhances the orbital hybridization between the host and LiPSs, thereby strengthening the chemical adsorption and effectively lowering the decomposition energy barrier of Li 2 S. Consequently, the Cu-Ni/NiO modified separator exhibits superior catalytic activity, achieving a high initial capacity of 1353 mAh g −1 and an ultralow decay rate of 0.056% per cycle over 500 cycles at 1C. Even under harsh conditions with high sulfur loading (8.4 mg cm −2 ) and lean electrolyte, the pouch cell delivers a high areal capacity of 4.16 mAh cm −2 and excellent flexibility, demonstrating its great potential for practical applications. Atomic Cu sites are incorporated into the Mott-Schottky Ni/NiO heterostructure to modulate interfacial electron redistribution. Atomic Cu doping simultaneously improves electrical conductivity, optimizes the electronic structure, and enhances catalytic activity. The resulting Cu-Ni/NiO heterocatalyst delivers high polysulfide adsorption capacity and accelerated conversion kinetics, effectively suppressing the shuttle effect and boosting the overall electrochemical performance of Li S batteries. Download: Download high-res image (194KB) Download: Download full-size image
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2026
·
IF 9.2
Yanping Xie,Geng Zhao,Dongli Xu,Xiaofeng Yin,Liang Fang
The construction of heterogeneous interface is considered as an efficient approach to improve the intrinsic catalytic activity of hydrogen evolution electrocatalysts. Here, a self-supported heterostructured electrocatalyst (Ni-MoO 2 /WO 2 ) is fabricated by anchoring porous Ni-MoO 2 /WO 2 nanoflakes with a densely intermediate layer of Ni-MoO 2 /WO 2 nanoparticles on Ni foam through a three-step procedure involving corrosion, hydrothermal and annealing treatment. The Ni-MoO 2 /WO 2 heterostructure can modulate the interfacial electronic state and accelerate the reaction kinetics. The middle layer tightly anchors the catalytic layer to the substrate, preventing the detachment of the catalyst under high current density. The Ni-MoO 2 /WO 2 electrode exhibits a low overpotential of 30 mV at 10 mA cm −2 , a small Tafel slope of 63 mV dec −1 and excellent catalytic stability at 50 mA cm −2 beyond 50 h toward the hydrogen evolution reaction in alkaline solution. This work presents a new strategy to develop non-precious electrocatalysts with high performance for alkaline HER.
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ACS Catalysis
·
2026
·
IF 13.6
Jiaqing Liu,Xiaoqing Liu,Jiacheng Zhang,Zheng Liang,Wei Lin,Xue Feng Lu
Achieving high current densities with nickel-based catalysts within the urea oxidation reaction (UOR) potential window is critical for the scalable implementation of urea electrolysis. However, their performance is limited by the high energy barriers of Ni2+ deprotonation and sluggish proton-coupled electron transfer (PCET) processes. Herein, ultrafine PtNi-Ni nanoparticles rooted on porous TiO2 (PtNi-Ni/TiO2) nanotubes are constructed by a facile surface segregation and galvanic replacement reaction. The obtained PtNi-Ni/TiO2 electrocatalysts deliver the highest UOR current density of 284.4 mA cm–2 at a low potential of 1.50 V, ranking among the top UOR electrocatalysts reported. Kinetic analysis and theoretical calculations reveal that alloying significantly reduces the free energy for the Ni2+ electrooxidation, while heterojunction engineering promotes the PCET process and weakens the strong adsorption of urea, thereby improving the UOR current density. Moreover, PtNi-Ni/TiO2 delivered hydrogen evolution activity, enabling a urea electrolyzer employing PtNi-Ni/TiO2 as both anode and cathode to achieve 50 mA cm–2 at a low cell voltage of 1.55 V, which reduces the energy consumption by 17.2% compared with water splitting systems. This study provides a fundamental paradigm and insights for designing advanced nickel-based electrocatalysts for urea-splitting systems.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2026
·
IF 4.6
Mingzhu Lv,Wenbin Wei,Zhen Du,Ning Liu,Yina Qiao,Jing Lu,Pengxiao Liu
Prussian blue analogs (PBAs) have attracted significant attention in the field of capacitive deionization (CDI) due to their unique open-framework structure and excellent ion storage capacity. However, their limited capacity and poor cycle stability have restricted their practical applications. In this study, a series of ternary nickel‑cobalt‑copper Prussian blue analogs (NiCoCu-PBA) was synthesized via a co-precipitation method by introducing Ni, Co, and Cu metal ions, which significantly enhanced the material's conductivity, reversible redox activity, and structural stability. The optimized NiCo 2 Cu 8 -PBA electrode exhibited an excellent specific capacitance of 185 F g −1 at a current density of 0.2 A g −1 . In the rocking-chair electrochemical desalination system, the electrode achieved a desalination capacity of 79.71 mg g −1 in a 600 mg L −1 NaCl solution, maintaining a rapid desalination rate of 2.8 mg g −1 min −1 and low energy consumption of 0.589 Wh g −1 . Additionally, the electrode demonstrated excellent long-term stability, retaining 92% of its initial capacity after 200 cycles. This study confirms that the synergistic effect of the ternary metals plays a key role in enhancing the performance of PBA electrodes and provides technical support for the development of efficient and durable desalination systems.
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JOURNAL OF RARE EARTHS
·
2026
·
IF 9.6
Huijie Wang,Dedong He,Jichang Lu,Yu Zhang,Jiangping Liu,Xiaohua Cao,Zhizhi Xu,Shaowei Zhang,Dingkai Chen,Yongming Luo
Enhancing the sluggish kinetics of the CO 2 reduction reaction (CO 2 RR) is crucial for the efficient CO 2 -to-CO conversion in solid oxide electrolysis cells. Herein, a dual-exsolution strategy is reported to simultaneously anchor Co and Ni nanoparticles onto distinct La 0.6 Sr 0.4 Co 0.7 Mn 0.3 O 3– δ (LSCM) perovskite phase and Ce 0.9 Ni 0.1 O 2– δ (CNO) fluorite phase, respectively. This design activates both electronic and ionic conduction pathways. The resulting cathode achieves a remarkable CO 2 electrolysis current density of 1.48 A/cm 2 at 1.5 V and 800 °C, representing a 54% enhancement over its non-exsolved counterpart and exhibits stable operation for 100 h. Combined experimental and theoretical analyses reveal that the synergistic Co-Ni bimetallic sites, along with abundant oxygen vacancies, cooperatively enhance CO 2 adsorption and dissociation. Density functional theory calculations provide insights into the intrinsic activity of the newly formed Co@LSCM and Ni@CNO heterointerfaces. This work provides a promising route for designing high-performance composite electrodes via dual-phase engineering.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2026
·
IF 4.6
Sheng Liang,Zhihao Wang,Kunhong Hu,Lei Hu,Lili Wang,Lingli Liu,Ningning Zhou,Jiage Yu,Bin Chen,Xin Liang
Lithium‑sulfur (Li S) batteries based on lithium sulfide (Li 2 S) cathodes hold great promise for next-generation energy storage devices but suffer from critical drawbacks, including lithium polysulfides (LiPSs) shuttling, sluggish redox reaction kinetics, and severe safety hazards. Here, a multifunctional separator is designed by coating a nickel hydroxide (Ni(OH) 2 ) nanoflakes-decorated kelp-like porous carbon (Ni(OH) 2 /KLPC) composite onto a polypropylene (PP) membrane. The unique KLPC skeleton derived from mucor hyphae provides a three-dimensional conductive network, while the polar Ni(OH) 2 nanoflakes offer strong chemisorption for LiPSs and high catalytic activation for the interconversion between solid-phase (Li 2 S and S) and liquid-phase (LiPSs). Meanwhile, the Ni(OH) 2 nanoflakes endow the separator with remarkable flame retardancy through an endothermic decomposition process and the formation of highly flame-retardant products nickel oxide and water. Consequently, the Li S battery assembled with the Ni(OH) 2 @KLPC modified PP (Ni(OH) 2 /KLPC/PP) separator and a Li 2 S/multi-walled carbon nanotube cathode delivers a high initial discharge capacity of 1132 mAh g −1 , remarkable rate property of 320 mAh g −1 at 5.0 A g −1 , and stable long-term cycling over 750 cycles. This work presents a promising synergistic strategy for constructing high-performance and safe Li S batteries through multifunctional separator engineering.
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JOURNAL OF POWER SOURCES
·
2025
·
IF 7.9
Kailin Fu,Weijian Chen,Jianmin Liu,Jian Liang
Perovskite oxides are increasingly recognized as cost-effective catalytic materials for facilitating both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) at the air-electrode electrode of Zn-air batteries (ZABs) and fuel cells. In this study, we have employed a non-hydrolytic sol-gel (NHSG) technique to synthesize La 0.8 Sr 0.2 Co 0.8 X 0.2 O 3-δ (X = Fe, Mn, and Ni) perovskite nanoparticles at a low temperature of 600 °C. Among these perovskite oxides, La 0.8 Sr 0.2 Co 0.8 Fe 0.2 O 3-δ (LSCFO) exhibited the highest specific surface area of 12.68 m 2 g −1 and possessed the greatest number of oxygen vacancies. Specifically, it achieved a higher half-wave potential of 0.657 V for ORR. Meanwhile, it exhibited a lower OER overpotential of 418 mV at a current density of 10 mA cm −2 , along with the smallest ΔE value of 0.991 V. When utilized as an air electrode catalyst for ZABs, LSCFO exhibits a high peak power density of 152.2 mW cm −2 and remarkable long-term cycling stability (100 h at 2 mA cm −2 ), which are close to the performance metrics of commercial Pt/C + RuO 2 catalysts. This study demonstrates the potential to enhance the bifunctional catalytic activity of LaCoO 3 -based perovskite air electrodes for ZABs through a straightforward doping approach within a NHSG process.
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