ACS Nano
·
2026
·
IF 17.3
Yiman Feng,Zhixing Wang,Xin Xia,Gui Luo,Duo Deng,Wenjie Peng,Wenchao Zhang,Hui Duan,Feixiang Wu,Xing Ou,Junchao Zheng,Jiexi Wang
All-solid-state lithium batteries (ASSLBs) employing Ni-rich layered oxide cathodes (NRLOs) and sulfide solid-state electrolytes (SSEs) hold great promise for high energy density and enhanced safety, yet they suffer from severe interfacial instability. This study precisely constructs a composite gradient coating on the surface of NRLOs by using atomic layer deposition. The oxygen-rich inner layer, which is induced by the reaction between TiCl4 and predeposited Li2O/LiOH, functions as an electrochemically inert barrier that enhances structural integrity and suppresses transition-metal dissolution, whereas the chlorine-rich outer layer acts as a compliant interfacial region with favorable compatibility toward sulfide SSE, which accommodates volume changes during cycling and mitigates mechanical stress at the cathode/sulfide SSE interface. Additionally, the well-structured LiCl nanocrystals formed within the coating layer improve both the cycling stability and Li+ transport kinetics. The optimized NCM95 cathode demonstrates exceptional cycling stability (96.9% capacity retention after 200 cycles) and rate capability (103 mAh g–1 at 2 C) at room temperature. This work underscores the importance of designing multifunctional coatings and provides a scalable approach to stabilizing the cathode/electrolyte interface for high-energy ASSLBs.
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PubMed
高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Chaoran He,Shanshan Zhao,Jiafei Lyu,Bofeng Zhang,Rongrong Zhang,Guozhu Liu
The severe carbon deposition that plagues conventional Ni catalysts in dry reforming of methane (DRM) originates from the kinetic mismatch between CH 4 cracking and CO 2 dissociation. Here, we design an atomically thin Sm-doped MgAlO x overlayer to encapsulate Ni nanoparticles, creating a confined reaction environment that intrinsically couples these two critical steps. The Sm-induced electron donation to Ni accelerates CH 4 dissociation by weakening the C-H bonds, while the Sm-doped thin overlayer with rich oxygen vacancies facilitates the rapid decomposition of CO 2 -derived carbonate intermediates (m-CO 3 2− ) and shortens the diffusion path for the resultant active oxygen species to gasify surface cavrbon precursors. The optimized catalyst achieves high conversions of CH 4 (91.0%) and CO 2 (94.0%) at 800 °C, reducing carbon deposition from 39.47% to 9.50%, and maintains stable performance over 100 h. This work demonstrates that precise reducible-oxide overlayers engineering can intrinsically align reaction kinetics to break the classical deactivation cycle of Ni-based catalysts in DRM.
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高影响因子
Journal of Materiomics
·
2026
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IF 10.6
Yukai Chang,Yihao Xu,Huilan Zhao,Yingjie Huo,Zhikai Yan,Penghui Li,Shangsheng Li,Meihua Hu,Libo Wang,Qianku Hu,Aiguo Zhou,Renchao Che
Simplifying the technology for regulating dielectric properties and enriching electromagnetic loss mechanisms of layered electromagnetic wave (EMW) absorption materials still faces challenges. Herein, we propose a simple and eco-friendly sieving strategy to control the lateral size (3–50 μm) of multilayered SiP 2 flakes for regulating dielectric constants. Moreover, hierarchical-structured 2D SiP 2 @0D Ni nanoparticles/1D Ni chains low-dimensional aggregates are in-situ constructed on SiP 2 flakes via a two-step hydrothermal method to enhance interfacial polarization and electromagnetic synergistic effects. When the lateral size was controlled at 11 μm (SiP 2 -300), the intrinsic SiP 2 exhibits strong reflection loss (RL) value of –38.9 dB at 1.7 mm. Notably, the construction of 2D/0D/1D SiP 2 @Ni not only maintains a strong RL of –40.1 dB, but also shifts the corresponding absorption frequency from original Ku-band (11.8 GHz) to C-band (7.2 GHz). More importantly, the effective absorption bandwidth is broadened from 2.9 GHz to 4.1 GHz benefiting from the construction of electromagnetic synergy networks. Additionally, the radar cross section (RCS) value (29.14 dB⸱m 2 ) evaluated by the computer simulation technology (CST) results for SiP 2 @Ni-S2 confirm the excellent dissipation ability. This study provides a new strategy for the application of layered absorbers with low-frequency, broadband and adjustable EMW properties.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123938
·
IF 7.5
Yanli Wang,Wenqing Xu,Tingyu Zhu,Zhikun Zhang
The severe self-aggregation and instability of polyamines at high loadings remain major mass-transfer limitations in solid amine sorbents. To overcome this kinetic limitation, we propose a molecular-level regulation strategy by incorporating trace Ni (1 wt%) into tetraethylenepentamine (TEPA) confined within a hierarchical porous geopolymer-zeolite framework. Rather than acting as a conventional promoter, the intentionally introduced Ni forms specific Ni-TEPA coordination complexes, which significantly disrupted the intermolecular hydrogen-bonding network and inhibited polyamine aggregation. Consequently, the Ni-modified sorbent effectively alleviated diffusion resistance, exhibiting substantially improved amine accessibility and accelerated adsorption kinetics. Density functional theory (DFT) combined with spectroscopic analyses revealed that Ni coordination systematically reduced the electron density around the amine nitrogen sites, substantially lowering the apparent adsorption activation energy to 8.28 kJ/mol. Under simulated post-combustion conditions (15 vol% CO 2 , 70 °C), the optimized sorbent achieved a high CO 2 uptake of 3.92 mmol/g and retained 99.75% of its initial capacity after 10 cycles. Furthermore, utilizing waste-derived zeolite-geopolymer (from municipal solid waste incineration and coal fly ash) as the robust support yields a potentially attractive manufacturing cost of 158.99 ¥/kg, providing a sustainable and scalable chemical engineering approach for industrial flue gas treatment.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
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IF 12.5
Shuo Gao,Mengchen Li,Shunlong Xu,Junsu Jin,Jianguo Mi,Hong Meng
Heterometallic Ni/In-gallate was constructed by In 3+ incorporation. • CO 2 gate-opening pressure shifted from 0.10 to 0.07 bar at 298 K. • CO 2 /N 2 selectivity of Ni/In-gallate increased by about 8.5 times. • CO 2 uptake of Ni/In-gallate increased by 91.8% at 0.15 bar. • Ni/In-gallate retained 96.7% (82.15%) CO 2 breakthrough time at 40% (80%) RH. Flexible metal–organic frameworks (MOFs) exhibiting gate-opening transitions are promising for gas separations, yet their performance at low partial pressures is fundamentally constrained by the intrinsic energy barrier governing the structural transition. In this work, In 3+ was incorporated into the Ni-gallate framework to construct heterometallic Ni-O···In motifs. This modification induced localized charge redistribution and enhanced the electrostatic potential gradient within the pore environment. As a result, the gate-opening pressure for CO 2 is shifted from 0.10 to 0.07 bar, accompanied with a significant uptake at 0.15 bar (from 1.83 to 3.51 mmol g −1 ) and IAST selectivity (13287). In situ DRIFTS and kinetic analyses further show a faster establishment of CO 2 adsorption features and a stronger interaction between EPM-Ni/In-gallate and CO 2 . Changes in the electrostatic potential in localized regions within the EPM-Ni/In-gallate were investigated using XAS and PALS measurements. Furthermore, DFT calculations show a substantial reduction in the free-energy barrier for CO 2 migration between adjacent cavities. These results are consistent with a contribution from modified pore-wall polarization and gating energetics. This work identifies electrostatic control as a promising approach for tuning gate-opening transitions in flexible porous materials, providing new design principles for low-pressure gas capture.
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高影响因子
JOURNAL OF POWER SOURCES
·
2026
·
IF 8.4
Yuqian Gao,Haotian Tan,Wenxue Chen,Jinlin Wang,Fan Luo,Hongfu Gao,Maierwaiti Jimosi,Xiaoyuan Zeng
The development of highly efficient and low-cost bifunctional catalysts is pivotal for the large-scale commercialization of water electrolysis technology. A solvothermal method was used to fabricate the bifunctional Ir 0.1 Ni/Ni(OH) 2 electrocatalyst, utilizing Ni(OH) 2 which served as both the support and the nickel (Ni) source for the in-situ formation of IrNi alloy nanoparticles via co-reduction. The significant electronegativity difference between iridium (Ir) and Ni induced electron transfer from Ni to Ir at the alloy interface, resulting in substantial interfacial electronic reconstruction. This electronic synergy optimally regulated the bifunctional activity: the electron-rich Ir sites facilitated the adsorption of hydrogen intermediates, enhancing the hydrogen evolution reaction; whereas the electron-deficient Ni sites strengthened the adsorption of hydroxyl and oxygen intermediates (OH, OOH*), significantly lowering the energy barrier for the oxygen evolution reaction. Therefore, this catalyst exhibits excellent activity and stability in both the OER and the HER. In a 1.0 M KOH solution at a current density of 10 mA cm −2 , the HER requires an extremely low overpotential of only 31 mV, while the OER requires 270 mV. Moreover, Ir 0.1 Ni/Ni(OH) 2 serves as an electrocatalyst for overall water splitting in alkaline media. This research provides a simple and effective strategy for designing advanced alloy catalysts for sustainable energy conversion.
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高影响因子
Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124720
·
IF 7.5
Liyuan Zhang,Daoyin Liu,Zuyang Zhang,Jiliang Ma,Zelin Xu,Hao Van Bui
CO 2 methanation via Ni/SiO 2 catalysts is an attractive method of converting CO 2 and storing renewable energy, where the Ni particle size and dispersion are decisive factors governing activity, selectivity, and durability. Here, fluidized bed atomic layer deposition (FB-ALD) was used to construct size-controlled and well-dispersed Ni nanoparticles on SiO 2 sub-microparticles for CO 2 methanation. The growth characteristics and properties of Ni nanoparticles with different ALD cycles and the methanation behaviors of Ni/SiO 2 catalysts were investigated. The results showed that adjusting the number of ALD cycles enabled precise control of both the Ni loading (2.1–6.6 wt%) and the particle size (1.2–3.0 nm) in the FB-ALD process, while ensuring uniform dispersion on the SiO 2 support. The 60ALD-Ni/SiO 2 catalyst, containing 6.6 wt% Ni, delivered 81.4% CO 2 conversion and 98.4% CH 4 selectivity at 360 °C and 0.1 MPa. The catalyst also retained stable performance during a 100-hour continuous test, with negligible coke formation and limited Ni sintering. Hence, FB-ALD is a scalable and precise platform for designing active, durable, and low-metal-loading Ni/SiO 2 methanation catalysts.
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高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2026
·
IF 3.5
Hong-Da Zhang,Shu-Ting Bao,Shi-Chao Su,Ming-Fei Dai,Zhi-Ping Zhao,Le Sang
The coating stability of dopamine-polymer-modified Ni foam is important for its application in micropacked bed reactors. In this study, hydrophilically modified polydopamine (PDA)/Ni foam and polylevodopa (PLD)/Ni foam, and hydrophobically modified F 9 -PDA/Ni foam and F 9 -PLD/Ni foam were prepared. The hydrophobically modified Ni foam packings had a gas-liquid mass transfer enhancement performance in micropacked bed reactors. Based on the gas-liquid flushing experiment results, the stability of PDA/Ni foam and F 9 -PDA/Ni foam was better than that of PLD/Ni foam and F 9 -PLD/Ni foam. PFHS can interact with PDA and PLD to produce hydrogen bonds and chemical reactions. The adsorption of PFHS on PLD was more stable, and the chemical reaction was more spontaneous. The experiment and DFT calculation confirmed the binding strength of PDA/PLD and Ni foam acts as a key controlling factor for the overall stability of F 9 -PDA/PLD-Ni foam. As a result, the adhesion of PDA on the Ni foam was significantly better than that of PLD.
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高影响因子
ACTA PHYSICO-CHIMICA SINICA
·
2026
·
IF 13.5
Fulin Yang,Runze He,Sneha Mittal,Shuli Wang,Anantharaj Sengeni,Ligang Feng
The advancement of Fe-based oxygen evolution reaction (OER) catalysts lags behind their Ni-based counterparts, albeit their good theoretically predicted performance and low cost. Deeply understanding the catalytic mechanism would be necessary to advance the Fe-based catalysts. Currently, Fe-based non-metallic compounds, such as sulfides, phosphides, and selenides, have been widely explored as highly active OER precatalysts because of their tunable electronic structures and relatively high electrical conductivity. Nevertheless, these precatalysts usually undergo surface reconstruction into oxyhydroxides under OER conditions, making the real active phase different from the pristine compound and complicating the structure-performance relationship. Herein, taking the Ni-doped FeS 2 nanosphere catalyst as a platform, we discover a nuanced bidirectional electronic effect within the surface-reconstructed active phase, showcasing the vital roles of both residual FeS 2 and Ni dopants in optimizing catalytic performance. Structural characterizations confirm the successful incorporation of Ni dopants into the pyrite FeS 2 lattice. An amorphous carbon layer is coated on the sulphide nanospheres, which contributes to improving charge transfer efficiency and maintaining structural integrity during electrocatalysis. As a result, the obtained catalyst, typically denoted as Ni 0.2 -FeS 2 @C, achieves markedly enhanced OER activity in the alkaline electrolyte, requiring an overpotential of only 270 mV to reach 10 mA cm −2 , much lower than those of the undoped and uncoated counterparts (FeS 2 @C and FeS 2 ). Moreover, Ni 0.2 -FeS 2 @C exhibits negligible activity decay after 5000 cyclic voltammetry cycles and remains stable during 100 h of constant-potential operation, with Faradaic efficiency for oxygen production close to 100%, demonstrating good catalytic durability and selectivity. Spectroscopic analyses and density functional theory calculations reveal that surface reconstruction during OER leads to the formation of oxyhydroxide as reported elsewhere, but unique electronic interactions, which have not been observed earlier. On the one hand, the residual FeS 2 substrate upshifts the d -band center of the surface oxyhydroxide, strengthening the adsorption behavior of the crucial oxygenated intermediate. On the other hand, Ni dopants induce a downshift of the d -band center, which weakens over-binding inversely. The resulting bidirectional modulation optimizes the electronic structure of active sites and effectively balances the adsorption strength of OER intermediates, thereby reducing the OER energy barrier. Consequently, this work not only provides a viable strategy for the rational design of Fe-based OER catalysts but also deepens the mechanistic understanding of the real active phase of balanced electronic modulation in enhancing electrocatalytic activity. Surface reconstruction generates an oxyhydroxide active layer on Ni-doped FeS 2 for OER, where the FeS 2 substrate and Ni dopants oppositely regulate the d -band center to optimize oxygen-intermediate binding. Download: Download high-res image (295KB) Download: Download full-size image
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高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2026
·
IF 8.3
Yuwan Du,Yangxuepan Wang,Jinliang Ning,Sifan Cao,Dongmei Yang,Zhenchao Zhang,Yuan Liu,Xincun Dou
Qualitative and semi-quantitative detection and identification of multiple targets is of great importance in complex sample analysis, while surface-enhanced Raman scattering (SERS) could be an efficient strategy. Here, to efficiently promote the enhancement effect, Ni doping and Au nanoparticles (AuNPs) surface modification were adopted to develop a MoS 2 SERS substrate composed of intercrossed nanoflowers, named AuNPs@Ni-MoS 2 , which exhibits high SERS enhancement towards the Raman reporter (4-mercaptobenzoic acid, 4-MBA) with an enhancement factor (EF) of 10 8 . In complex matrices of different mushrooms, this substrate can also sensitively detect α -amanitin and β -amanitin with a limit of detection (LOD) of 10 −8 M for both, which laid a solid foundation for the accurate discrimination via the following machine learning-based approach. Meanwhile, based on the AuNPs@Ni-MoS 2 substrate, sensitive and specific detection of Hg 2+ was attributed to the formation of an Au-Hg alloy, which could greatly lower the catalytic potential required for the oxidation of the colorless chromogenic agent (3,3’,5,5’-tetramethylbenzidine, TMB) to a yellow oxidized TMB (TMB 2+ ). This study not only provides a reference model for improving charge transfer efficiency in SERS system but also offers technical support for rapid screening multiple analytes in complex samples.
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高影响因子
FUEL
·
2026
·
IF 7.8
Yu Shi,Fagen Wang
Dry reforming of methane (DRM) offers a sustainable approach for converting greenhouse gases (CH 4 and CO 2 ) into syngas. In this study, we demonstrated the superior efficacy of microwave-assisted DRM over Ni/SiC catalysts calcined at different temperatures. The strong microwave absorption capability of Ni/SiC facilitated rapid catalyst heating, while microwave irradiation lowered the activation energy of DRM, significantly enhancing the conversions of CH 4 and CO 2 . The optimized 3Ni/SiC-923 K catalyst achieved CH 4 and CO 2 conversions of 67.2% and 81.0%, respectively, at 923 K under microwave-assisted DRM, significantly outperforming the respective conversions of 37.4% and 57.1% in conventional thermal DRM. Comprehensive characterizations via BET, XRD, H 2 -TPR, XPS, and microwave absorption analysis elucidate the structure-performance relationship. This work not only presents highly efficient Ni/SiC catalysts for microwave catalytic DRM but also highlights the importance of calcination temperature in adjusting DRM performance.
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高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2026
·
IF 9.2
Lezhuo Li,Shangyun Chen,Jiaxin Liu,Zhongkang Cao,Ke Wang,Xu Zhang,Bingjun Yang,Juan Yang,Tianhong Zhou,Pengjun Ma
Spinel oxides are promising electrocatalysts whose activity can be tuned by elemental composition, yet understanding multicomponent synergy remains challenging. Herein, a Spinel-type medium-entropy CoFeCrNiO 4 electrocatalyst is developed, and a Cr-Ni synergistic strategy is proposed to regulate dynamic surface reconstruction during OER. The catalyst exhibits an overpotential of 263.4 mV at 10 mA cm −2 and 365 mV at 300 mA cm −2 in 1 M KOH, with a low Tafel slope of 37.12 mV dec −1 . It also shows excellent stability, with only 2.78% overpotential decay after 24 h operation. In-situ characterization reveals that the Cr-Ni interaction promotes the formation of active oxyhydroxide species during reconstruction. This work provides insights into synergy-driven activity enhancement and offers guidance for the design of high-performance spinel OER catalysts.
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高影响因子
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