CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Yuanzhou Mu,Mengmeng Sun,Siyi Guo,Tingting Dong,Lizhong He
A 3D honeycomb-like Ni–Co–Mn oxide composite is grown on carbon cloth. • Multi-component synergy enhances charge storage. • The electrode delivers 349.7 mAh g −1 and retains 90% capacitance after 30,000 cycles. • An asymmetric device achieves 68.99 Wh kg −1 and 98.33% retention after 20,000 cycles. Exploring promising electrode materials with enhanced specific capacitance, cyclic stability, and capacitance retention for supercapacitor (SC) applications remains a significant challenge. Herein, a three-dimensional (3D) honeycomb-like porous ternary Ni-Co-Mn metal oxide composite electrode material was successfully grown on a carbon cloth (CC) substrate, serving as a promising multifunctional candidate for high-performance supercapacitors. In this design, NiCo and NiMn precursors were first fabricated on the surface of carbon cloth via a facile two-step hydrothermal deposition route, followed by in situ high-temperature annealing to yield a high-performance electrode material. Multiple characterization techniques indicate that the electrode material exhibits a 3D porous structure comprising NiCo 2 O 4 , Ni 6 MnO 8 , NiMnO 3 , and CoMnO 4 , collectively denoted as NC@NM-O. Leveraging the synergistic effects of multiple components and unique structural features, the NC@NM-O electrode delivers an ultra-high specific capacitance of 2517.54 F g −1 at a current density of 1 A g −1 and maintains 90.02% capacitance retention at a high discharge rate of 10 A g −1 after 30,000 cycles. An asymmetric all-solid-state supercapacitor, assembled with an activated carbon (AC) negative electrode (NC@NM-O//AC), achieves an energy density of 68.99 Wh kg −1 and a power density of 827.99 W kg −1 at a working voltage of 1.8 V. After 20,000 cycles, the device maintains an impressive capacitance retention rate of 98.33%. Overall, this work demonstrates that rationally designed, multi-component transition metal oxides can serve as advanced battery-type electrode materials for energy storage devices and provides a promising strategy for the development of next-generation high-performance supercapacitors. Download: Download high-res image (152KB) Download: Download full-size image
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高影响因子
ENERGY CONVERSION AND MANAGEMENT
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2026
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IF 11.8
Weiguo Liu,Phumlani Fortune Msomi,Ndzondelelo Bingwa,Chenggong Sun,Yunpu Wang,Zhenyong Lu,Hui Li
Microwave-assisted technology has emerged as an efficient approach to enhance heterogeneously catalyzed transesterification reactions to produce fatty acid methyl esters (FAME), which are the major components of biodiesel. Our previous studies have confirmed that the dielectric loss capability of the catalyst plays a crucial role in enhancing catalytic activity under microwave fields. However, in addition to dielectric loss performance, the impact of magnetic loss performance on material absorption performance must not be overlooked. To address this gap, this study systematically investigates the role of magnetic loss in microwave-assisted transesterification. Herein, we successfully synthesized a magnetic catalyst (Ni/CaO-CNT) and non-magnetic catalyst (Cu/CaO-CNT) to investigate influence of magnetic loss on transesterification, evaluated the catalytic performance in transesterification reaction of palm oil and methanol. The results indicated that Ni doping optimized the magnetization of Ni/CaO-CNT (5.4 emu/g), and when compared to Cu/CaO-CNT, the magnetic loss ability of Ni/CaO-CNT was increased by 6.5 times, greatly enhancing its microwave-absorbing capacity. Although Cu/CaO-CNT catalyst had a higher basicity (0.68 mmol/g) than the Ni/CaO-CNT (0.65 mmol/g), the Ni/CaO-CNT demonstrated superior catalytic performance under microwave conditions, achieving a transesterification conversion of 94.4% compared to 87.3% of Cu/CaO-CNT, an over 7% improvement that demonstrates magnetic loss significantly enhances catalytic efficiency beyond what can be achieved through basicity alone. Moreover, the turnover frequency (TOF) of Ni/CaO-CNT reaches 84.28 h −1 , substantially higher than that of Cu/CaO-CNT (68.12 h −1 ). Compared to the non-magnetic catalyst, Cu/CaO-CNT, the Ni/CaO-CNT catalyst saves 38.5% of energy consumption and reduces 2.1 kg of CO 2 per kilogram of FAME produced.
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ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Weiqi Lu,Zhenyang Dai,Ruichao Xu,Yufeng Chen,Min Ge,Wenxue He,Jinglin Yuan,Yanna Shui,Ya Pan,Yong Zhang,Chao Wang,Yajuan Feng,Shi He,Zhihu Sun
Conventional Ni–N 4 single-atom catalysts (SACs) hold great promise in sustainable energy conversion and storage, but suffer from weak * COOH adsorption and narrow potential windows during CO 2 electroreduction (CO 2 RR). To address this limitation, herein we report an asymmetric Ni–N 3 O 1 SAC prepared via an oxygen-mediated spatial confinement pyrolysis strategy. Theoretical calculations predict that this unique asymmetric coordination can effectively lower the * COOH formation energy, promote the interaction between the catalyst and * COOH, and suppress the competing hydrogen evolution reaction in CO 2 RR. The prepared Ni–N 3 O 1 SAC features a distorted planar quadrilateral structure and demonstrates exceptional performance in CO 2 -to-CO conversion, with a maximum turnover frequency of 207 700 h −1 , a maximum CO partial current density of 810 mA cm −2 , and CO Faradaic efficiency of ≥ 99% over an ultra-wide potential window of 2100 mV (−0.3 to −2.4 V vs. reversible hydrogen electrode) in a flow cell. A combination of in situ spectroscopic measurements verifies the reversible structural evolution and robust stability of the Ni–N 3 O 1 SAC under CO 2 RR conditions, as well as the strengthened * COOH formation and accelerated CO 2 activation kinetics. This work provides a feasible route for designing and synthesizing high-performance asymmetrically coordinated SACs toward industrial CO 2 -to-CO conversion.
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Journal of Energy Storage
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2026
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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
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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
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2026
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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
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2026
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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
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2026
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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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高影响因子
ENERGY & FUELS
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2026
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IF 6
Boya Hao,Gang Hou,Zewei Liu,Zeyuan Lei,Chongyi Wang,Bofeng Zhang,RongRong Zhang,Xingjie Wang,Jiafei Lyu,Guozhu Liu
The growing demand for sustainable aviation fuel (SAF) makes extending the carbon chain from ethanol a strategy well worth pursuing. Herein, a series of Ni/MgO@C catalysts derived from Ni/Mg bimetallic metal–organic frameworks (MOFs) was evaluated for the Guerbet coupling of ethanol to higher alcohols within the alcohol-to-jet (ATJ) strategy. Owing to the isolated metal nodes in the periodic framework, highly dispersed Ni species on the magnesium-based solid supports with abundant basic sites have been accessed. The catalyst with a Ni/Mg molar ratio of 0.13 achieved a higher alcohol yield of 55.5% at 88.4% ethanol conversion under 2 MPa N2 at 240 °C for 10 h. Upon extending the reaction to 24 h, C8–C16+ alcohols accounted for 41.4% of the alcohol product pool. Comprehensive catalyst characterization combined with theoretical calculations revealed that the involvement of Ni species can accelerate the dehydrogenation step, while an appropriate Niδ+/Ni0 ratio can be critical for efficient carbon chain elongation by promoting alcohol dehydrogenation to aldehyde and simultaneously suppressing their deep decomposition through weakened interaction with the catalyst surface.
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Journal of Energy Chemistry
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2026
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IF 15.6
Jiaxin Zhang,Na Li,Yao Liu,Rongjian Ding,Wenwen Lu,Chengwen Shang,Mengyi Pei,Riguang Zhang,Yanling Zhai,Ting Zhang
The cascade synthesis of imines from alcohols and nitroarenes via catalytic transfer hydrogenation (CTH) is a highly sustainable process. However, developing efficient non-noble metal catalysts remains a formidable challenge due to the kinetic mismatch of sequential reaction steps and sluggish active hydrogen transfer. Herein, we propose a novel spatial functional partitioning catalyst design paradigm and construct a highly efficient diatomic catalyst featuring atomically dispersed ZnN 4 and NiN 4 sites spatially bridged by nitrogen atoms. Experimental and theoretical investigations reveal a precise dual-site cooperative mechanism of the unique Zn-N-Ni constructure. Specifically, the highly electron-deficient Zn sites (+1.14 |e| vs . +0.83 |e| of Ni) preferentially activate the hydroxyl group of benzylalcohol to generate active H* due to a lower dehydrogenation energy barrier (89.6 kJ mol −1 vs. 111.6 kJ mol −1 for Ni). Concurrently, the Ni sites, featuring a higher d -band center (–1.47 eV vs. –5.50 eV for Zn), facilitate nitrobenzene hydrogenation with a significantly lower barrier (73.7 kJ mol −1 ), while the bridging N serves as an H* adsorption site. Consequently, this synergistic configuration integrates single-atom efficiency with dual-site cooperation, achieving 96% nitrobenzene conversion and 90% imine selectivity. This work not only elucidates the atomic-level hydrogen transfer mechanism in cascade reactions but also establishes a rational design principle for complex tandem catalytic systems. Atomically dispersed ZnN 4 and NiN 4 sites linked by bridging N enable cooperative catalysis where Zn dehydrogenates alcohols and Ni extracts H from adjacent N-H for nitroarene hydrogenation toward imines. Download: Download high-res image (64KB) Download: Download full-size image
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高影响因子
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
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