AICHE JOURNAL
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2025
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IF 4
Meili Ding,Wei Rong,Yang Wang,Jianfeng Yao
Reforming desirable photocatalytic platforms for efficient carbon dioxide (CO 2 ) utilization is highly desirable but represents a great challenge. In this study, we report a facile surface structure modulation strategy to fabricate functional biochars (BCs) with different surface oxygen functional groups. The mild oxidation of sodium hypochlorite endows BC with abundant surface oxygen species without significantly compromising its inherent morphology. Under Xe lamp irradiation (400 mW/cm 2 ) and 1 bar CO 2 , the catalytic activity toward the coupling of CO 2 and epichlorohydrin based on BC-NaClO reached 100% yield, which was 3.8, 2.6, and 1.5 times greater than that of pristine BC, functional BC-HNO 3 , and BC-NaOH, respectively. Further investigations revealed the contributions of both holes and electrons to the photocatalytic activity of BC-NaClO and the synergistic effects of photocatalysis and photothermal catalysis. This work demonstrates a rational pathway toward high-efficiency biomass-derived photocatalysts for targeted CO 2 conversion.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2025
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IF 9.7
Hui Kang,Chen-Ning Li,Lifei Yin,Jiabao Gui,Meng Wang,Yang Chen,Jinping Li,Libo Li
The separation of carbon dioxide (CO 2 ) from acetylene (C 2 H 2 ) is crucial but highly challenging due to their similar molecular dimensions and physicochemical properties. In contrast to C 2 H 2 -selective adsorbents, CO 2 -selective adsorption strategy substantially reduces energy consumption by eliminating the need for additional C 2 H 2 desorption steps. However, the development of CO 2 -selective adsorbents capable of reversing C 2 H 2 /CO 2 separation remains limited and requires further exploration. Herein, we report a porous coordination polymer, [Cu(5-NH 2 -ipa)(pia)], featuring an interdigitated structure with one-dimensional corrugated channels to directly purify C 2 H 2 . Adsorption results indicate that at 298 K and 1.0 bar, [Cu(5-NH 2 -ipa)(pia)] exhibits a CO 2 /C 2 H 2 uptake ratio of 2.09 and IAST (Ideal adsorbed solution theory) selectivity of 10.9. It possesses optimally sized pores with an electrostatic potential that is highly complementary to the electrostatic properties of CO 2 , enabling preferential CO 2 adsorption through strong electrostatic interactions and hydrogen bonding. This result is well supported by molecular simulation and theoretical calculations. Furthermore, experimental breakthrough tests demonstrate that high-purity CO 2 can be directly obtained from CO 2 and C 2 H 2 mixtures. This work paves the way for the future development of advanced porous materials and inspires their use for CO 2 -selective capture from C 2 H 2 .
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PubMed
高影响因子
Journal of CO2 Utilization
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2025
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IF 8.4
Kihyuk Sung,Hye Jeong Joe,Changsu Ha,Hee-Seong Yang,In-Hwan Lee,Seok Ki Kim,Hye-Young Jang
We investigated the polymerization mechanism of a highly active heterogeneous Zn-gallate catalyst used for propylene oxide (PO) homopolymerization and PO/CO 2 copolymerization. The molecular weights of poly(propylene oxide) (PPO) and poly(propylene carbonate) (PPC) can be controlled by varying the ratio of chain transfer agents (CTAs) to PO. CTAs of varying acidity and structure provided insight into their interaction with catalytic sites. Theoretical calculations on a heterogeneous zinc hydroxide slab model for Zn-gallate revealed that polymerization is initiated by the reaction of PO with a hydroxyl group located within the zinc hydroxide lattice. Further energy barrier calculations and polymerizations at varying CO 2 pressures explained the kinetic preference for PPC formation over PPO at high CO 2 pressure.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Tianyi Wang,Longqi Wu,Chao Zhang,Guozhu Zhang,Yang Chen,Chengze Gao,Zeyu Wang,Yiming Wang,Yang Gao,Fuzhen Xuan
Real-time monitoring of exhaled carbon dioxide (CO 2 ) is essential for assessing metabolic status and tracking disease progression. However, the high moisture content of exhaled breath poses a significant challenge to the accuracy and stability of CO 2 detection. Here, we present a flexible chemiresistive CO 2 sensor based on a dimethylamine-functionalized hydrogel, in which water molecules critically facilitate the CO 2 -induced reversible protonation of tertiary amine groups, thereby modulating the hydrogel's ionic conductivity for real-time breath analysis. As a result, the hydrogel synthesized from N -[3-(dimethylamino) propyl] methacrylamide (DMAPMA) exhibits a high CO 2 response of 37.3 % at 10,000 ppm and a low detection limit of 100 ppm. To further enhance mechanical durability under respiratory-induced stress, N , N -Dimethylacrylamide (DMAA) was incorporated into the hydrogel, increasing the tensile strain limit from 34.2 % to 51.0 % without compromising CO 2 sensing performance. In addition, we demonstrate the integration of the hydrogel sensor into a wireless smart mask system, enabling multimodal monitoring of respiratory CO 2 patterns, physical activity, and postprandial metabolic changes. This platform offers a scalable, low-power solution for wearable CO 2 sensing in personalized health monitoring.
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高影响因子
Journal of CO2 Utilization
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2025
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IF 8.4
Dake Zhang,Wenzhen Wang,Zhen Wang,Dengmeng Song,Shuang Liu,Yuyang Chen,Xiaoni Ma,Li Xia
Addressing the challenges of biotoxicity, poor long-term stability, and inadequate interfacial adhesion that hinder the clinical translation of tissue adhesives, we utilized the biocompatibility and biodegradability of CO₂-derived polycarbonates (PPC) and innovatively incorporated diacetyl-L-tartaric anhydride (DATA) into the copolymerization to develop PPC and DATA alternating/random copolymer (PPCD) bioadhesives. Compared to unmodified PPC, PPCD exhibits significantly enhanced adhesive properties: peel strength increased to 4.7 ± 0.43 N/cm (a 273 % improvement), sealing strength reached 67 ± 2.3 kPa (a 235 % enhancement), and skin adhesion strength rose to 22.1 ± 2.3 kPa (a 203 % increase). In comparative tests, PPCD outperformed commercial Fibrin glue in overall mechanical performance. Furthermore, PPCD demonstrates thermoresponsive viscosity modulation, undergoing debonding at 10°C with a thermal response efficiency exceeding 95 % compared to its viscosity at 37°C. Crucially, PPCD retains the degradability and bioaffinity of the original PPC, as confirmed by cytotoxicity assays showing > 98 % cell viability and histopathological analyses in mice verifying its biosafety. This bioadhesive resolves the long-standing trade-off between mechanical robustness and biocompatibility, while also establishing a new CO₂ valorization strategy for eco-friendly biomedical materials. The functionalization of PPC not only enhances adhesive performance but also pioneers a sustainable pathway for carbon utilization, demonstrating the transformative potential of next-generation tissue repair technologies.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Zhilv Chen,Chaoming Jian,Chao Li,Tao Wang,Qinhui Wang,Mengxiang Fang,Fanpeng Meng,Wei Chen,Yongsheng An,Ximing Hu
Traditional aqueous amine-based absorbents face high energy consumption challenges in CO₂ capture processes. Replacing water with organic solvents of low viscosity, low specific heat, and high boiling point in amine-based CO₂ absorbents can effectively reduce the sensible and latent heat required for solvent regeneration. However, the introduction of organic solvents significantly alters mass transfer kinetics and chemical equilibrium, and the quantitative relationship between these effects remains unclear. In this study, water-lean absorbents EFH series with varying organic solvent concentrations were formulated using N , N -dimethyl-1,2-ethanediamine(DMEDA), N , N -dimethylformamide (DMF), and water. Kinetic parameters were measured for DMEDA aqueous solutions, MEA aqueous solutions, pure DMF, and the EFH series. The results revealed an inconsistency between the liquid film mass transfer coefficient ( kₗ ) and viscosity trends, indicating that physical mass transfer dominates the efficiency limitation of DMEDA absorbents under low CO₂ loading, while DMEDA retains sufficiently rapid chemical reaction rates even in water-lean environments. 13 C NMR analysis demonstrated that carbamate species exist as incompletely dissociated ion pairs in aprotic solvent environments. The stabilization of these ion pairs by organic solvents suppresses the generation of neutral carbamic acid, thereby restricting mass transfer and leading to an inflection point in the absorption rate. These findings highlight a dual strategy for optimizing water-lean absorbents: (1) prioritizing low-viscosity, high-CO₂-solubility solvents to enhance initial mass transfer, and (2) tuning solvent polarity or introducing proton donors to sustain reaction efficiency at higher CO₂ loadings. This work provides quantitative mechanistic insights into balancing the trade-off between chemical equilibrium and mass transfer in non-aqueous systems, offering guidance for designing energy-efficient carbon capture solvents.
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高影响因子
ACS Applied Nano Materials
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2026
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IF 5.8
Meidan Que,Xiangwei Bai,Tengjiao Xue,Ziang Liu,Jiaojiao Zheng,Xun Sun,Jun Xu
Barium titanate (BaTiO3) exhibits high chemical stability; however, the relatively rapid recombination of charge carriers severely limits its photocatalytic performance. Meanwhile, electrocatalysis facilitates charge transport by generating a spontaneously polarized electric field, effectively suppressing charge carrier recombination, but the performance of conventional ferroelectric catalysts is inherently constrained by their low surface piezopotential. In this study, a piezo-photocatalytic system triggered by ultrasonic vibration is reported, based on BaTiO3 nanobats. The BaTiO3 structure resembles a nanobat, featuring a thicker lower cylindrical body (∼35 nm diameter) and a thinner upper section (∼20 nm diameter) with a total length of about 250 nm. It can generate a piezo-potential as high as 1.2 V through COMSOL finite element simulation. Under mild vibration, the BaTiO3 nanobats exhibit superior piezo-photocatalytic performance, converting CO2 into CO with a maximum yield of 101.18 μmol·g–1·h–1. The yield is approximately five times higher than that achieved with ultraviolet light irradiation alone. Furthermore, theoretical calculations reveal that the adsorption and desorption of intermediates (*COOH, *CO) on BaTiO3 can be regulated by applying different strains. The piezo-photocatalytic CO2 reduction reaction opens an avenue beyond conventional photocatalysis, expanding energy utilization to pave the way for carbon neutrality.
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高影响因子
ACS Catalysis
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2026
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IF 13.6
Tingting Ge,Runhua Chen,Xiaorui Liu,Ziyan Jia,Chao Liu,Jiahui Huang,Yongfu Sun
Electrocatalytic reduction of CO2 to methane is one of the effective strategies for achieving carbon cycling and addressing environmental issues. Herein, we report the successful synthesis of an atomically precise Cu58 nanocluster. An optimized one-pot method involving sequential sodium borohydride reduction was developed. The crystal structure of the Cu58 nanocluster belongs to the space group Pca21 and features a central distorted face-centered cubic Cu14 kernel encapsulated within a Cu48S36P4 shell. This shell is composed of Cu7S2 and Cu10S8P2 units and is flanked by two peripheral Cu5S5P staple motifs. ESI-MS confirms the molecular formula, and XPS analyses establish that copper exists exclusively in the Cu+ oxidation state. The catalytic performance of Cu58 was evaluated for electrochemical CO2 reduction (CO2RR) upon dispersion on a C3N4 support. 15-Cu58/C3N4 achieves a CH4 Faradaic efficiency of 73% at 600 mA cm–2. The synergy between the topology structure of Cu58, the Cu+ sites of the nanocluster, and the pyridinic N sites of the C3N4 support is identified as the key factor for enhancing CO2 adsorption and suppressing the competing hydrogen evolution reaction, thereby steering the selectivity toward methane. This study underscores the potential of structurally defined copper nanoclusters as the premier electrocatalysts for fuel production.
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Science China-Chemistry
·
2024
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IF 10.4
Chen Zhi-Wei,Wang Hong-Juan,Liu Chang,Lu Xiu-Li,Lu Tong-Bu
Nitrogen-doped carbon materials have been widely used for the constructions of single-atom catalysts, while the effect of different species of doped nitrogen on the catalytic activity of CO 2 electroreduction has rarely been investigated. Here we found that pyrrolic-N coordinated Ni 2+ catalysts display much higher electrocatalytic CO 2 -to-CO activity and selectivity than the corresponding pyridinic-N coordinated low valent Ni (0−+2) catalysts, and pyrrolic-N coordinated Ni 2 dual-atoms catalyst of Ni 2 /N-CNTs exhibits the best electrocatalytic performance, with over 90% Faradaic efficiencies in a broad potentials from −0.6 to −1.2 V vs. reversible hydrogen electrode, as well as an outstanding CO specific current of 56.2 A/mg Ni and high turnover frequency of 6.2 × 10 4 h −1 , over 7-times higher than those of pyridinic-N coordinated Ni catalysts. Electrochemical results indicate the weak electron-donor nature of pyrrolic-N facilitates the generation of a reduced active site at low overpotential for boosting CO 2 electroreduction. Density functional theory calculations reveal that the reaction free energy for the *COOH formation on pyrrolic-N coordinated Ni catalysts are lower than those on pyridinic-N coordinated Ni catalysts, and a H 2 O-adsorbed Ni 2 /N-CNTs displays the optimized reaction free energy for both *COOH formation and CO desorption, which derive the best catalytic performance.
研究领域:
材料科学
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催化化学
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电化学
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Xingwei Xie,Jianpeng Li,Qiufeng Liu,Kaihang Sun,Kun Lu,Saibo Yang,Fei Chen,Chenyang Shen,Longzhou Zhang,Zhourong Xiao,Young Dok Kim,Zhongyi Liu,Zhikun Peng
Oxide-oxide interaction plays a vital role in regulating the electronic structure of supported metal in the oxide-supported metal catalysts, thereby strongly relating to CO 2 hydrogenation efficiency. Although oxide-oxide interface offers a potential way to tailor metal-Ov synergy for boosting CO 2 hydrogenation, its specific effects on the distribution of metal in different states are still ambiguous. Herein, we engineer a CeO 2 -Y 2 O 3 interface to modulate Ov formation and electronic features of supported Cu nanoparticles. The CeO 2 -Y 2 O 3 interaction also facilitates charge transfer and tunes adsorption behavior. The catalyst with the highest Cu + species and a considerable amount of Ov achieves the intensified Cu + -Ov synergy, exhibiting a superior activity and catalyst stability for the reverse water-gas shift reaction. The present work provides a feasible strategy to trigger metal‑oxygen vacancy synergy for boosting CO 2 hydrogenation reactions.
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PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Xingman Shan,Guanran Zhao,Yaohao Guo,Linfeng Lei,Zhi Xu
The regeneration of CO 2 -loaded solvents remains intrinsically energy-intensive and represents a major bottleneck in carbon capture. Here, we develop a Joule-heated carbon hollow fiber membrane (CHFM) to enable rapid and energy-efficient CO 2 desorption from ethanolamine (MEA) via a membrane flash process. Benefiting from the intrinsic electrical conductivity of the porous carbon matrix, thermal energy is generated directly within the membranes by a self-Joule-heating, delivering localized heating at the desorption interface and thereby effectively mitigating temperature polarization. Meanwhile, the highly porous membrane structure provides abundant nucleation sites that promote rapid CO 2 phase transition within the membrane wall. Compared with the conventional external heating method, the Joule-heated mode achieves more than a twofold enhancement in CO 2 desorption performance at ∼70 °C. Specifically, a CO 2 flux of 0.096 mol m -2 s -1 and a desorption ratio of 22% are obtained with a short residence time of 2 s. The specific equivalent energy consumption is reduced to 0.64 MJ kg -1 CO 2 , substantially lower than that of conventional industrial regeneration processes. This study demonstrates a robust membrane-based route for intensified and scalable CO 2 solvent regeneration.
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高影响因子
Journal of Advanced Dielectrics
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2026
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IF 3.3
Hong Xiang,Jindong Liu,Fulei Tang,Ziang Liu,Jiaojiao Zheng,Peihong Ma,Meidan Que,Jian Wei,Yao Wang,Sai Liu
Photocatalytic CO 2 reduction technology is a promising new way to convert CO 2 into high value-added chemicals and fuels by sunlight. However, there are still some problems in the practical application of this technology, such as low yield, poor catalyst stability and excessive by-products. To solve these problems, TS-HF- x Pt series photocatalysts were successfully prepared by sol-gel method, HF etching process and photodeposition technology. The TS-HF-0.7Pt catalyst showed more excellent catalytic performance, and the methane yield reached 86.084 μmol·g -1 ·h -1 , which was 32.2 times that of TS-HF. The performance test shows that the surface plasmon resonance (SPR) effect of Pt significantly broadens the light absorption range, inhibits the recombination of photogenerated electron-hole pairs, reduces the charge transfer resistance, and improves the carrier utilization efficiency, thereby promoting the absorption of CO 2 . This reveals the great potential of Pt loading in improving the catalytic performance of TS-HF.
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