Journal of Photonics for Energy
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2026
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IF 2.5
Pengyu Fei,Yun Li,LingLing Jiao,Fan Cao,Zhouze Chen,Hongbin He,Ruoxuan Peng,XingYu Zhan,Jiancheng Zhou,Yitao Si,Naixu Li
Photothermal-assisted photocatalysis, which couples localized thermal energy with photogenerated charge carriers to overcome thermodynamic and kinetic limitations, has emerged as an effective strategy for solar-driven CO2 reduction. Herein, nanoflower-like NiO/ZnO p–n heterojunction spheres were rationally constructed via a simple hydrothermal calcination method to achieve efficient concentrated photothermal-assisted CO2 reduction. The unique nanoflower morphology provides abundant interfacial contact between NiO and ZnO, while the formation of the p–n heterojunction establishes an internal electric field that suppresses electron-hole recombination. Under concentrated irradiation (4.31 W·cm−2), the photothermal coupling effect reduces the apparent activation energy and enables the NiO/ZnO photocatalyst to deliver CO and CH4 production rates of 51.78 and 15.96 μmol·g−1·h−1, which are 7.92 and 9.61 times higher, respectively, than those obtained under nonconcentrated illumination. Photoelectrochemical measurements and in situ DRIFTS further reveal that the built-in electric field facilitates directional charge transfer from ZnO to NiO, thereby promoting CO2 adsorption and activation. We demonstrate an efficient photothermal-coupling strategy to construct high-performance catalysts for artificial photosynthesis and solar-to-fuel conversion.
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INORGANIC CHEMISTRY
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2026
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IF 4.6
Hongxiang Jin,Xiaochuan Deng,Rong He,Lingyu Xie,Xue Wang,Han Yan,Aiping Zhang,Xiaofang Feng,Tao Chen,Wenkun Zhu
The conversion of CO2/H2O into valuable chemicals with nonthermal plasma (NTP) under mild conditions represents a promising strategy, whereas the quenching effect and side reactions caused by H2O seriously restrict its efficiency. Herein, we propose a surface microenvironment modulation strategy by confining phosphomolybdic acid (PMA) within UiO-66 to construct a highly hydrophilic PMA/UiO-66 catalyst for plasma-catalytic CO2 conversion in a dielectric barrier discharge system. Theoretical calculations and experimental results confirm that the abundant exposed oxygen atoms in PMA/UiO-66 can form a hydrogen-bonding network with H2O molecule, which effectively promotes the enrichment and activation of H2O on the catalyst surface and suppresses the quenching effect of bulk H2O molecules on the plasma-induced dissociation of CO2. Meanwhile, the hydrogen-bonding network acts as an electron-trapping center and proton transport channel, lowering the free energy barrier for CO2-to-*COOH step, thereby accelerating the reaction kinetics of CO2 conversion. Under optimal energy efficiency conditions for NTP-catalyzed CO2 conversion, the PMA/UiO-66 system achieves a CO2 conversion of 17.78%, which is approximately 5 times greater than that of the plasma-only system. The study on the regulation of the catalyst surface microenvironment offers valuable insights for designing high-performance catalysts for plasma-catalytic CO2 conversion.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Chunyu Li,Min Zhang,Zhenjiang Li,Yujia Wang,Na Shi,Yanqi Shi,Yue Xu,Jiahui Ma,Haoyu Wang,Kai Guo
The development of catalyst that workable homogeneously in reaction and recoverable heterogeneously in separation remains a challenge. We designed functionalized cellulose featuring malononitrile carbanion ion pair as a bifunctional catalyst for the cycloaddition of CO₂ to epoxides (CCE) reactions. The malononitrile (MNH) group was regioselectively anchored on the C-6 position of the anhydrous glucose unit of the cellulose backbone (Cell-MNH), and subsequently deprotonated with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) yielding catalyst Cell-[MN][DBUH], which exhibited excellent catalytic activity in CCE reactions of styrene oxide under conditions of 120 °C, 1.0 MPa, and 8 h, with catalyst loading of 1.5 mol%, achieving a yield of 93% and a selectivity of 94%. A bifunctional catalytic mechanism was proposed in which the carbanion attacked the CO₂ and the 1,8-diazabicyclo[5.4.0]undec-7-enium (DBUH) as an H-bond donor activated the epoxide. NMR titration experiments validated the role of DBUH in coordinating to epoxide through hydrogen bonding, and 13 C NMR spectra revealed a carbonate intermediate derived from malononitrile carbanion and CO 2 . The catalyst was homogeneous at 120 °C during the reaction but precipitated upon cooling due to the inter-chain attractions of the positive and negative ions, allowing easy filtration and recycling. The catalyst maintained robust by yields of 82%–97% and selectivity of 92%–99% through five recycles. This lignocellulose-based ion pair organocatalyst enables efficient homogeneous catalysis with heterogeneous recovery, offering potential design and broad applicability.
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Nature Communications
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2026
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IF 18.1
Kang Xiaofeng,Jiang Mingyu,Lv Jiarong,Liao Chen,Ding Xue,Wang Feng,Bai Shengjie,Liu Ya,Guo Liejin
Improvement of solar-to-chemical energy conversion in photocatalytic CO 2 reduction remains fundamentally constrained by insufficient utilization of solar energy, particularly low-energy photons. Here we report a nanoscale greenhouse structure (Bi@Fe 2 O 3 ) that enables cascaded utilization of full solar spectrum. The Bi nanocore primarily absorbs low-energy photons, generating localized nanoheating via non-radiative heating through localized surface plasmon resonance effects and energetic hot electrons. Meanwhile, the oxygen-vacancy-rich loose Fe 2 O 3 shell absorbs high-energy photons and serves as the catalytic bed, where injected hot electrons and confined heat synergistically promote CO 2 activation and deep hydrogenation. Benefiting from the interplay between photochemical and photothermal effects, the system achieves a CH 4 production rate of 273.81 μmol g –1 h –1 with 98.60% selectivity and an apparent quantum efficiency of 0.64% at 850 nm illumination without any external heating or sacrificial agents. This work paves a way for the efficient utilization of the entire solar spectrum.
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JOURNAL OF SOLID STATE CHEMISTRY
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2026
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IF 3.2
Dijun Zhou,Jianwen Wei,Xuequan Zou,Linlin Geng,Xiaobin Zhou,Lei Liao
Amine scrubbing, while mature for CO 2 capture, suffers from solvent volatility. To address this, we developed a novel solid adsorbent by incorporating low-volatility ionic liquids (ILs), [TEPA][NO 3 ] and [PEHA][NO 3 ], into a hierarchical UiO-66@SBA-15 composite (US). The growth of UiO-66 within the mesochannels of SBA-15 was facilitated by interactions between Zr 4+ and surface Si–OH groups. IL loading dramatically increased the density of amine-based CO 2 adsorption sites. The optimized adsorbent, US-T60, achieved a high CO 2 capacity of 4.73 mmol g -1 at 60 °C under 15% CO 2 /85% N 2 , which is 4.15 times that of the pristine US composite. It also exhibited excellent regeneration stability, retaining 93% of its initial capacity after five cycles. Kinetic analyses indicated a mixed physisorption-chemisorption process, well-described by the Avrami model. In-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) revealed that CO 2 capture proceeded via two pathways: the rapid formation of ammonium carbamate ion pairs under amine-rich conditions, and the formation of hydrogen-bonded carbamic acid when proton transfer was hindered. Combined with its high capacity, good stability, and tunable adsorption mechanism, this family of IL-incorporated hierarchical composites demonstrates promising potential for application in post-combustion flue gas CO 2 capture.
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Nature Communications
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2026
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IF 18.1
Lang Hu,Yun Yang,Jiamin Wang,Dongao Zhang,Jingya Huang,Yuqi Zhang,Xiaodong Yi,Guoxiong Wang,Zhou Chen
Electrocatalytic CO 2 reduction reaction (CO 2 RR) technology holds significant industrial potential. However, when faced with elevated-temperature environments caused by industrial-scale operations, the fundamental understanding of temperature-dependent CO 2 RR behavior in flow cells remains elusive. This study points out that elevated-temperature operation (>333 K) presents both challenges and opportunities for multi-carbon (C 2+ ) production. While elevated temperature enhances reaction kinetics and reduces thermodynamic energy barriers, it simultaneously induces reconstruction of Cu-based catalyst, accelerates gas diffusion electrode flooding, and promotes *CO desorption together with hydrogen evolution reaction, collectively suppressing C 2+ product formation and compromising long-term reactor stability. Through rational design of hydrophobic-enhanced Pd-Cu 2 O/polytetrafluoroethylene (PTFE)/Ag tandem electrodes, we overcome these challenges. Leveraging thermal reduced C-C coupling barriers, the optimized electrode achieves >70% Faradaic efficiency of C 2+ across industrially relevant current densities (200–1000 mA cm −2 ) at 348 K. This strategy converts elevated temperature adversity into a kinetic and thermodynamic advantage, boosting C 2+ cathodic energy efficiency by 1.3 times compared to ambient operation, establishing a promising paradigm for industrially viable CO 2 electrolysis. The electrocatalytic reduction of CO 2 offers industrial potential, but elevated temperatures hinder efficient production of valuable multi-carbon compounds. Here, the authors report a synergistic electrode design for efficient CO 2 electrolysis to multicarbon products at 348 K.
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APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Jibiao Wang,Jiansen Wang,Lingyun Yang,Houyu Zhu,Pornthip Tongying,Yuanxing Wang
Oxide-derived Cu nanowire arrays were developed for electrochemical CO 2 reduction. • Cu nanowire arrays are capable of producing syngas with a wide range of H 2 /CO ratios. • The tunable selectivity of catalysts was attributed to the grain boundaries in Cu. Electrochemical reduction of CO 2 to value-added fuels and chemical feedstocks, such as syngas, stands as an appealing solution for energy and environmental sustainability. Currently, it suffers from a lack of catalysts with good activity and selectivity. Herein, we have synthesized a series of oxide-derived Cu nanowire arrays (NAs) as catalysts for electrochemical CO 2 reduction. Copper oxides NAs were first synthesized by thermal oxidation and then electrochemically reduced. By adjusting the annealing temperatures, the obtained Cu NAs are capable of reducing CO 2 and H 2 O to produce syngas with a wide range of H 2 /CO ratios (from 2.5:1 to 0.7:1) at a low overpotential. First-principles calculations confirmed that the enhancement of CO 2 reduction and suppression of hydrogen evolution were attributed to grain boundaries in the Cu NAs. This research demonstrates a promising strategy for the development of Cu-based catalysts in tunable syngas production. Download: Download high-res image (187KB) Download: Download full-size image
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Journal of Energy Chemistry
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2026
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IF 15.6
Haoran Jia,Le Lin,Xiaohui Feng,Xiaoyue Wang,Rentao Mu,Qiang Fu
Competitive adsorption between H 2 and CO x ( x = 1, 2) on oxide catalysts represents a primary limitation in hydrogenation reactions, where mutual site blocking suppresses activity and selectivity. This constraint hampers syngas conversion and CO 2 hydrogenation, yet strategies to decouple adsorbates remain elusive. Here, we show that competitive adsorption can be overcome through a partial-site-occupation mechanism that prevents surface saturation and enables independent activation. For a model ZnCr 2 O 4 @ZnO x system, in situ infrared spectroscopy directly reveals the simultaneous adsorption of H 2 with CO or CO 2 , in contrast to the mutually exclusive adsorption observed on pristine ZnO. Kinetic measurements link this decoupling to suppressed inhibition effects and altered reaction orders, driving improved catalytic performance. Density functional theory combined with temperature-programmed analyses further demonstrates that homolytic H 2 dissociation becomes thermodynamically self-limiting, resulting in intrinsically unsaturated surface coverages. These findings indicate competitive adsorption from an inherent constraint to a tunable surface property and establish practical design strategies for cooperative activation in ZnO-based oxide-catalyzed hydrogenation reactions. The ZnCr 2 O 4 -confined ZnO x catalyst decouples the competitive adsorption between CO/CO 2 and H 2 , enabling the co-adsorption and co-activation of these small molecules. Download: Download high-res image (182KB) Download: Download full-size image
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Lin Li,Kunpeng Yu,Haixin Sun,Tong Feng,Dayu Liang,Qinqin Xu,Jianzhong Yin
Two-dimensional layered material membranes show great potential in the efficient sieving of molecules. However, balancing permeability and selectivity remains a significant challenge. In this study, ZIF-8 crystals are in situ grown on molybdenum disulfide (MoS 2 ) nanosheets exfoliated via supercritical carbon dioxide (scCO 2 ) for the first time, aiming to fabricate high-permeability MoS 2 @ZIF-8 membranes. It is suggested that the dispersed ZIF-8 crystals act as spacers to alleviate the restacking of MoS 2 nanosheets. The intrinsic microporous structure of ZIF-8, together with the tortuous transport pathways within the stacked MoS 2 layer, synergistically contributes to the size-selective separation performance of the membrane. Dye rejection tests show that the MoS 2 @ZIF-8 membrane exhibits high rejection rates and water permeability for various dye molecules. For example, the membrane has a rejection rate of 99.37% and a water permeability of 76.96 L m −2 h −1 ·bar −1 for Congo Red, and maintains an average rejection rate of 99.30% over 24 h of continuous operation. Moreover, the membrane can efficiently remove various dyes from salt-containing wastewater, with a maximum separation factor (SF) of 179.45 with a permeability of 79.77 L m −2 h −1 ·bar −1 . This method provides a promising solution for treating and purifying wastewater using membrane separation technology.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Jiapeng Ji,Zhibo Zhang,Zhixian Mao,Huajie Yin,Hui-Ming Cheng,Xiaolong Zhang
Novel Cu/CNTs-OH interface decouples gas/ion transport for acidic CO 2 conversion. • Interfacial H-bond network via -OH groups enhances proton mobility. • Shifts selectivity from ethylene to ethanol by optimizing *H coverage and proton supply. • In situ and theoretical evidences link H-bond network to key intermediates in ethanol pathway. Electrocatalytic CO 2 reduction (ECR) offers a route to convert CO 2 into valuable fuels such as ethanol, which is favored for its high energy density and ease of storage. ECR in acidic media could suppress carbonate formation but intensify competition from the hydrogen evolution reaction, limiting the selectivity of C 2+ products. Here we introduce an interfacial H-bond network strategy by coupling Cu nanoparticles with hydroxylated carbon nanotubes (CNTs-OH) to construct proton supply and steer reaction pathways for acidic CO 2 -to-ethanol electroconversion. Molecular dynamics and distribution of relaxation times analysis show that CNTs-OH enhance CO 2 diffusion while surface -OH groups form a dynamic H-bond network, facilitating proton transport via the Grotthuss mechanism. Density functional theory (DFT) calculations, isotope labeling, and rotating disk electrode results confirm that CNTs-OH promote water dissociation, supplying protons to Cu sites. In situ spectroscopy links the H-bond network to key ethanol pathway intermediates. Consequently, the introduced H-bond network at the electrode interface yields a 2.5-fold enhancement in ethanol selectivity and a dramatic shift in the ethanol/ethylene ratio from 0.4 to 1.6. This work provides an effective materials design strategy and mechanistic insight for selective CO 2 -to-ethanol conversion in acid media.
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CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Lin-Yuan Xiao,Chao-Yue Zhuo,Xiao-Nan Qin,Yue-Fei Zhang,Ziyi Li,Xiao Luo,Xiangjun Luo,Zhiwu Liang
Aminosilane concentration tunes Mg-MOF-74 structural evolution and porosity. • CO 2 adsorption exhibits high uptake at both ambient and high pressures. • The mechanism of how defects and amine groups synergistically enhance CO 2 capture capacity was studied. In this study, we report a rational design and synthesis of hierarchically porous 5/PA2-Mg-MOF-74@APTES with high CO 2 capacity through propionic acid (PA) modulation and amine functionalization (APTES). Characterization results confirmed that an optimized PA concentration effectively induced mesopore formation and exposed more unsaturated Mg 2+ sites, thereby generating hierarchical porosity, while subsequent grafting of APTES successfully introduced amino functional groups This combined strategy leverages both defect engineering and chemical functionalization, synergistically promoting CO 2 adsorption. Performance evaluations revealed that the optimal adsorbent 5/PA2-Mg-MOF-74@APTES(1:1), achieved a CO 2 uptake of 4.91 mmol·g −1 at atmospheric pressure (1 bar) and a remarkable uptake of 17.38 mmol·g −1 at high pressure (15 bar) with significantly improved CO 2 /CH 4 selectivity. This work explores a synergistic enhancement mechanism of CO 2 adsorption from the interplay of defect engineering and amine functionalization conducted by experimental characterization and theoretical calculations, which provides a novel strategy for the design and fabrication of high-efficiency CO 2 adsorbents suitable for diverse pressure applications.
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CHINESE JOURNAL OF CATALYSIS
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2026
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IF 17.2
Haifeng Fan,Di Xu,Ting Zeng,Guoqiang Hou,Yangyang Li,Siyi Huang,Yanfei Xu,Zheng Wang,Xinhua Gao,Xiang-Kui Gu,Mingyue Ding
CO 2 methanation technology has shown great application prospects in carbon neutrality and hydrogen storage due to its extremely high energy efficiency and potential economic benefits. It is highly desirable but challenging to design novel catalyst and achieve efficient and stable CO 2 methanation under mild conditions. Herein, we developed a highly active electron-enriched Y 2 O 3 /Ni catalyst, achieving a stable operation with ~80.1% CO 2 conversion and ~100% CH 4 selectivity for 400 h at 0.1 MPa and 220 °C, which was a 100 °C lower than the conventional supported Ni-based catalysts. Structural characterizations confirmed that the Y 2 O 3 /Ni catalyst maintained dynamic redox changes and formed electron-enriched Y 2 O 3– x -Ni interfaces under reaction conditions. Mechanism studies proved that the Y 2 O 3– x -Ni interfaces obviously lowered the energy barrier of *HCO dissociation, and shifted the rate-determining step from *HCO dissociation to *CO hydrogenation. Furthermore, profited by the moderate CO x adsorption ability and higher H 2 coverage at the Y 2 O 3– x -Ni interfaces, the *CO hydrogenation reaction was kinetically promoted. The above factors accounted for the excellent low-temperature CO 2 methanation activity of the Y 2 O 3 /Ni catalyst.
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