GREEN CHEMISTRY
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2026
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IF 9.2
Yujie Yuan,Ziyu Yang,Hao Wang,Tong Wu,Xiaoyi Zhang,Lin Chen,Zhaohuan Wei,Rui Wang,C. Venkata Reddy,Jaesool Shim,Hui Tang
Electrocatalytic seawater splitting holds immense promise as a green hydrogen production technology; however, the anodic oxygen evolution reaction (OER) confronts formidable challenges arising from the high concentration of chloride ions (Cl -) and other impurities in seawater. Herein, we develop a facile two-step immersion corrosion strategy to successfully construct a Ni 3 S 2 @FeOOH heterojunction electrocatalyst on nickel foam (NF) tailored for industrial alkaline seawater oxidation. Integrating density functional theory (DFT) calculations and experimental characterizations, we demonstrate that Ni 3 S 2 @FeOOH selectively enriches OH -while repelling Cl -during OER in alkaline seawater electrolytes. Notably, in situ leaching of SO 4 2-from the electrode triggers efficient self-reconstruction, facilitating the generation of high-valence metal active sites. The asfabricated catalyst exhibits remarkable OER performance with a low overpotential of 390.5 mV at an ultrahigh current density of 1000 mA cm -2 in alkaline seawater. Moreover, it maintains exceptional electrochemical stability for over 1000 hours at the industrial current density of 1000 mA cm -2 . This work provides a scalable strategy for constructing self-reconstructing electrocatalysts that promote highvalence metal site formation and efficient Cl -repulsion in alkaline seawater oxidation.
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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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ACS Applied Energy Materials
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2026
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IF 5.5
Liang Wan,Shaoyan Wang,Can Lei,Chuqian Xiao,Sheng Hu,Yikai Yang,Xingchen Ye,Dongqi Liu,Xiuming Bu,Ming Gong,Xiulan Hu,Xianying Wang
Electrocatalytic 5-hydroxymethylfurfural oxidation (HMFOR) is a sustainable route for biomass valorization to 2,5-furandicarboxylic acid (FDCA), yet balancing the competitive adsorption of HMF and OH− at the electrode−electrolyte interface is pivotal for boosting catalytic activity and selectivity. Herein, we report a terephthalic acid (PTA) modification strategy to tailor Cu-Ni(OH)2 with tunable metal valence and controllable surface charge, fabricating positively charged Cu-Ni(OH)2 and negatively charged Cu-Ni(OH)2-PTA. PTA functionalization elevates the Ni oxidation state and reinforces HMF adsorption on the catalyst surface. In situ surface-enhanced Raman spectroscopy and electrochemical impedance spectroscopy confirm that the negatively charged surface of Cu-Ni(OH)2-PTA efficiently mitigates the steric hindrance of hydrated ions and preserves a fully hydrated Cs+ interfacial microenvironment. This synergy optimizes the adsorption equilibrium of HMF and OH− via efficient and persistent HMF capture, enabling continuous enhancement of HMFOR activity. Consequently, Cu-Ni(OH)2-PTA delivers superior HMFOR performance in CsOH electrolyte, including a high FDCA Faradaic efficiency (98.2%), large current density, excellent cycling stability over 10 cycles, and stable operation for 120 h in a membrane electrode assembly (MEA) system. Notably, a high FDCA Faradaic efficiency of ∼86% is retained even in a pH 13 electrolyte with 1 M Cs+. This work elucidates the coupled effects of metal valence, surface charge, cation hydration, and interfacial water structure on HMFOR, providing a universal interfacial engineering principle for designing advanced electrocatalysts for efficient biomass electrooxidation.
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高影响因子
Nanoenergy Advances
·
2026
·Vol. 6
·期 3
·20
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IF 4.2
Qilan Shangguan,Huiying Qiu,Yanzhi Sun,Pingyu Wan,Yang Tang,Yongmei Chen
In this study, an electrochemical system for methane conversion was developed, employing Ni- and Ce-doped LaCoO3perovskite as the anode catalyst in an Na2CO3electrolyte. Structural characterization revealed that the La1−yCeyCo1−xNixO3(x = 0–0.5, y = 0–0.12) synthesized by the sol–gel method maintains the perovskite structure, but is rich in oxygen vacancies. Electrochemical studies revealed that the performance of methane activation is related to the presence of Ni(III) in the catalyst, and reactive oxygen species (•OH and HOO−) are provided through water oxidation reactions (WOR) in the Na2CO3electrolyte. The electrocatalytic performance of the synthesized La0.92Ce0.08Co0.5Ni0.5O3during methane conversion was verified in an electrolysis cell, and ethanol and acetic acid were identified as the methane conversion oxygenates. Under ambient conditions, the formation rate of ethanol reached 577.0 μmol gcat−1h−1at 0.90 V (vs. Ag/AgCl) in 0.5 mol L−1Na2CO3. The catalyst was found to retain structural integrity and sustain catalytic activity over multiple reaction cycles.
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Molecular Catalysis
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2026
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IF 4.3
Jian-Hui Zheng,Ming-Yu Qi,Zi-Rong Tang
Ni-modified ZnIn 2 S 4 for acid-free photocatalytic ethanol acetalization to 1,1-diethoxyethane and H 2 . • Loading the Ni cocatalyst accelerates charge separation, rendering the 1,1-diethoxyethane production rate 14.52 times higher than that of the blank ZIS, while maintaining nearly 100% selectivity. • The acetalization proceeds through the synergistic cooperation of in-situ generated protons and surface Lewis acid sites. Semiconductor-catalyzed acceptor-free dehydrogenative coupling of alcohols has emerged as a promising route for the artificial photosynthesis of high-value acetals. However, competitive activation of O–H and C–H bonds in alcohols causes uncontrolled generation of highly reactive radicals, making it challenging to achieve highly selective acetals production. Herein, we fabricate an efficient photoredox system based on Ni-modified ZnIn 2 S 4 (ZIS), which enables highly selective, acid-free C–O coupling of ethanol to 1,1-diethoxyethane (DEE) with concurrent H 2 evolution. Experimental results demonstrate that Ni modification optimizes the surface electron transport kinetics of ZIS while maintaining excellent DEE selectivity. The in situ-generated protons derived from ethanol dehydrogenation serve as a self-supplied proton source, driving the acetalization between the acetaldehyde intermediate and ethanol, facilitated by Lewis acid sites on the ZIS surface. This work offers some mechanistic insights and rational catalyst design guidelines for acid-free photocatalytic acetal synthesis, thereby enabling the coproduction of value-added chemicals and solar H 2 fuel. Download: Download high-res image (157KB) Download: Download full-size image
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JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
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2026
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IF 2.6
Xu Xiaobin,Gao Qiang,Ma Yue,Dong Chengwei,Ye Bing,Zhou Fei
M142 aluminum alloy, commonly used in piston systems, exhibits inadequate performance under prolonged high-temperature and high-load conditions. This study developed a TiO 2 nanoparticle-reinforced Ni-Fe composite coating via electrodeposition to address this. The effect of FeSO 4 ·7H 2 O concentration on Ni-Fe coatings was first investigated. The results show that hardness increased with FeSO 4 ·7H 2 O concentration, while the wear rate initially decreased and then increased. Adding TiO 2 nanoparticles effectively mitigated the adverse effects of high Fe content, leading to a dense, homogeneous composite structure (NFT15). Compared to the NF25 coating, the TiO 2 -reinforced coating demonstrated a 19.5% increase in hardness, a 30% improvement in adhesion strength, and a 30.9% decrease in wear rate. It also exhibited superior thermal stability, maintaining structural integrity and showing a 41.7% hardness increase after thermal cycling. Finally, a multi-performance evaluation identified the composite coating with 15 g L −1 TiO 2 as possessing the optimal overall properties.
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Journal of Energy Storage
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2026
·
IF 10.7
Yushu Liu,Changquan Wu,Xuerui Yang,Yifan Wu,Xiaowei Huang,Hongming Wang,Naigen Zhou
The combination of Ni-rich cathodes and silicon-graphite (Si C) anodes offers high energy density and fast-charging potential for electric vehicle (EVs), yet their practical performance is limited by sluggish interfacial ion transport and unstable interphases in conventional carbonate electrolytes. Herein, we develop a novel multifunctional siloxane additive, dimethoxymethylvinylsilane (DOMS), and elucidate its mechanism in enabling fast charging. DOMS promotes Li + desolvation by weakening solvents-Li + coordination, while scavenging HF via the cleavage of Si O and Si C bonds. Importantly, the selective decomposition of DOMS induces the in-situ formation of robust inorganic interfacial phases enriched in Si O and Si F species on both electrode surface, which facilitate Li + transport and suppress interfacial side reactions. Meanwhile, the accompanying organic components composed of polyethylene (PE) and poly(methyldifluorosilylethylene) (PMDFSE) effectively buffer electrode volume effect during cycling. Collectively, these synergistic effects yield a chemically robust and kinetically favorable interface, enabling exceptional fast-charging performance. At an areal-loading of 17.53 mg cm −2 , Si-C||LiNi 0.9 Co 0.05 Mn 0.05 O 2 coin cells deliver 71% capacity retention after 300 cycles at a high current density of 499.6 mA g −1 , whereas pouch cells reach 85.58% after 400 cycles at 200 mA g-1. This work establishes a mechanism-driven siloxane additive strategy for fast-charging, high-energy-density lithium-ion batteries.
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JOURNAL OF ELECTROANALYTICAL CHEMISTRY
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2026
·
IF 4.6
Chengcheng Yang,Zerui Zhang,Xueqing Gao
A coral-like Mn 3 O 4 -Ni 2 P/Ni(PO 3 ) 2 heterostructure material is designed for electrocatalytic water and seawater splitting. • The construction of Mn 3 O 4 -Ni 2 P/Ni(PO 3 ) 2 heterostructure regulate the electronic structure and expand more reactive sites. • Both Mn 3 O 4 and Ni(PO 3 ) 2 lower the adsorption energy of Cl − , inhibiting the Cl − oxidation side reaction. • As both anode and cathode, Mn 3 O 4 -Ni 2 P/Ni(PO 3 ) 2 demonstrates stable operation over 200 h. • The generation of phosphate effectively avoid the impact of chlorine evolution during seawater electrolysis. Seawater splitting represents a highly viable method for sustainable hydrogen generation. Nevertheless, the substantial energy demands involved in seawater electrolysis present considerable obstacles, primarily stemming from the chlorine evolution reaction (CER) and the suboptimal hydrogen generation. In this study, multi-component synergistic Mn 3 O 4 -Ni 2 P/Ni(PO 3 ) 2 heterostructure nano-coral catalyst was prepared by a gentle two-step method. It exhibits excellent corrosion resistance and electrochemical performance during alkaline seawater splitting. The generation of phosphate on its surface can effectively avoid the impact of CER during seawater electrolysis. Moreover, as both the anode and cathode, it demonstrates exceptional stability, maintaining consistent performance over 200 h. The Mn 3 O 4 -Ni 2 P/Ni(PO 3 ) 2 heterogeneous structure efficiently controls its electronic structure and expands its reactive regions. This work introduces an innovative design approach for catalysts, revealing their substantial potential for practical seawater splitting applications. Download: Download high-res image (32KB) Download: Download full-size image
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JOURNAL OF ALLOYS AND COMPOUNDS
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2026
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IF 6.7
Mutian Zhang,Ziying Ji,Xing Wang,Yulin Ouyang,Zening Yang,Siyuan Zhou,Miao Zeng,Wei Zheng,Jiajia Wang,Guobing Ying
Understanding the catalytic mechanisms of the alkaline hydrogen evolution reaction (HER) is essential for the rational design of efficient catalysts. In this work, Fe/Ni-doped Co 3 O 4 systems were investigated by combining DFT+U calculations with experimental validation. Theoretical simulations reveal that both dopants induce spin-state transitions in Co 3+ , tune orbital hybridization, and redistribute reaction energy barriers across elementary steps rather than uniformly lowering them on the Co 3 O 4 (110) surface. Hydrothermally synthesized Fe-Co 3 O 4 and Ni-Co 3 O 4 microflower spheres confirm these predictions: Ni doping lowers the overall reaction barrier by optimizing the electronic structure and adsorption energetics associated with high-spin Co 3+ , leading to a reduced onset overpotential, whereas Fe doping facilitates water dissociation via enhanced spin polarization, thereby lowering the rate-determining barrier and improving kinetics at high current densities. Further analyses identify reliable descriptors for different catalytic advantages: the overall reaction barrier, d -band center, and covalent bonding degree of water adsorption serve as indicators of thermodynamically favorable catalysts with low overpotential, whereas the rate-determining step barrier and d-p coupling are key descriptors of kinetically favorable catalysts with enhanced current-density performance. This study clarifies the step-specific roles of spin-state modulation and provides a framework for catalyst design based on energy barrier redistribution.
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Small
·
2026
·
IF 11.8
Xinyi Han,Ziliang Deng,Yongping Yang,Zipeng Zhao
Self-supported electrodes represent a promising anode architecture for anion exchange membrane water electrolyzers; however, their practical implementation is hindered by an insufficient understanding of their formation mechanisms and the consequently limited catalytic efficiency and stability. In this work, we developed a self-supported electrode comprising a composite catalyst of β-Ni(OH) 2 and NiFe layered double hydroxide (LDH), grown on nickel felt (denoted as Ni(OH) 2 /NiFe-LDH/NFt) via a one-step hydrothermal process. We systematically investigated and clarified the role of NH 4 F in governing the synthesis of self-supported Ni(OH) 2 /NiFe-LDH/NFt. The coordination effect of F − with Fe 3+ and etching effect of NH 4 + on the surface oxide layer of nickel felt leads to favorable heterogeneous nucleation. Moreover, the etching effect provides an additional Ni source that favors the deposition of Ni(OH) 2 on NiFe-LDH. However, excess NH 4 + leads to the formation of Ni-based complex compounds in solution during the hydrothermal process and suppresses the deposition of Ni(OH) 2. When applying as the Ni(OH) 2 /NiFe-LDH/NFt anode catalyst in practical anion exchange membrane water electrolysis, it requires only 1.81 V to deliver 1.0 A cm −2 and exhibits outstanding durability, with no noticeable performance decay after 750 h of continuous operation at 0.5 A cm −2 .
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PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Dong Cao,Yuhao Tian,Xueke Wang,Cuimei Li,Weijie Cai,Congming Li,Chun-Ran Chang
Photothermal CO 2 conversion into value-added syngas via dry reforming is pivotal for greenhouse gas utilization, yet its efficiency is constrained by catalyst deactivation. Here, we demonstrate that morphology-induced crystal phase modulation of ZrO 2 supports enables effective optimization of interfacial sites in Ni/ZrO 2 catalysts. By engineering cubic (Ni/ZrO 2 -C) and stellated (Ni/ZrO 2 -S) architectures, a metastable mixed-phase structure (54.8% monoclinic/37.3% tetragonal) is stabilized to achieve precise phase regulation. Systematic characterization reveals that this phase transformation strengthens metal–support interactions, improves Ni dispersion, and generates abundant oxygen vacancies. As a result, Ni/ZrO 2 -C achieves 95% ethanol conversion with lower by-product formation and exhibits exceptional stability, with a 50% lower deactivation rate (0.13% h −1 ) than Ni/ZrO 2 -S (0.26% h −1 ). The enhanced performance is attributed to improved surface basicity and more efficient coke gasification facilitated by interfacial oxygen vacancies. Theoretical calculations further confirm kinetically favorable pathways with reduced activation barriers, particularly for carbon oxidation, accounting for the observed 3.2-fold higher activity of Ni/ZrO 2 -C. This work establishes morphology-directed crystal phase engineering as a general strategy for designing efficient photothermal catalysts.
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ACS Catalysis
·
2026
·
IF 13.6
Rikai Liang,Laiwei Zhang,Chuhan Dai,Shouyu Yao,Xiaotong Li,Kui Yin,Jiaxin Xu,Guoliang Dai,Zhenhui Kang,Ziliang Chen
The oxygen evolution reaction (OER) remains the efficiency bottleneck of alkaline water electrolysis for carbon-neutral hydrogen. Herein, we propose a synergy strategy that couples p−d−f block elements within an intermetallic phase to deploy an ordered ternary ErNi4B alloy, which functions as a self-reconstructing precatalyst for the OER. Operando Raman, differential electrochemical mass spectrometry (DEMS), depth-resolved X-ray photoelectron spectroscopy (XPS), and density-functional theory (DFT) uncover that in situ conversion from ErNi4B to Er-doped NiOOH adsorbed with borate ions during the OER yields an active shell operating via the adsorbate-evolution mechanism, while the metallic core preserves high conductivity, cooperatively optimizing the adsorption free energy of intermediates and suppressing the leaching of active Ni species. Benefiting from these aspects, the precatalyst demands only 338 mV to deliver 500 mA cm−2 and sustains industrial current density higher than 600 mA cm−2 for 1000 h. Meanwhile, it also showed high potential as an anode for anion exchange membrane water electrolysis. These findings redefine the shell-active/bulk-conductive paradigm and offer a general stoichiometric-phase roadmap to design ultrastable and non-precious OER precatalysts toward carbon-neutral hydrogen.
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