Surfaces and Interfaces
·
2026
·
IF 6.3
Yaqi Liu,Yun Ju,Hong Zhang,Jing He,Jie Jiang,Jing Zhao,Mingyi Wang
Sea spray aerosol (SSA) contains abundant anions, which significantly impact CO 2 fixation at the air-water interface in atmospheric microdroplets. However, the underlying molecular mechanism remains unclear. Herein, we simulated SSA using nebulized saltwater microdroplets and investigated the common SSA anions (Cl − , Br − , I − , and SO 4 2− ) intervening in the abiotic carboxylation of succinate with CO 2 at the interface. The combination of online and offline analyses revealed that the SSA anions inhibited the interfacial carboxylation of succinate, with an inhibitory effect inversely proportional to their concentration. Kinetic studies confirmed that the carboxylation reaction occurred at a relatively high rate in the presence of the SSA anions. Furthermore, a mechanistic investigation was performed, which showed that SSA anions inhibited the interfacial carboxylation of succinate by modulating the interfacial electric field. Additionally, the formation of adducts between halogen anions from SSA and succinate suggests a potential pathway for the accumulation of succinate in the early marine environment. This work advances our understanding of air-water interfacial chemistry and provides new insights into prebiotic chemistry in the marine atmosphere.
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JOURNAL OF POROUS MATERIALS
·
2026
·
IF 3.2
Yang Liudong,Liu Li,Li Qunyan,Liu Junguo,Jing Ke,Wei Qi,Chen Wenjuan
Nitrogen-doped micro-mesoporous carbon nanospheres are considered as promising CO₂ adsorbents due to their remarkable efficiency and cost-effectiveness. In this work, nitrogen-doped micro-mesoporous carbon nanospheres were constructed, during which soft micelles (triblock copolymer P123) and a hard template (silica sol) as structural precursors were employed, and urea was used as the nitrogen source and KHCO₃ as the chemical activator. Through a combined chemical activation and post-doping strategy, ultra-micropores were successfully introduced into the carbon framework alongside rich nitrogen doping. The final nitrogen-doped micro-mesoporous carbon nanospheres exhibit high specific surface areas (529–2225 m²/g) and nitrogen contents ranging from 2.20 wt% to 6.02 wt%. The optimal sample, NMCNs-2K2U800, demonstrates excellent CO₂ adsorption performance, with capacities of 7.86 mmol/g at 0 ℃ and 4.31 mmol/g at 25 ℃ under 1 bar. This study systematically investigates the effects of activator and nitrogen source on the pore structure, nitrogen speciation, and CO₂ adsorption behavior of carbon materials. Further, a viable strategy for the controlled synthesis of porous carbons and providing valuable insights into the design of high-performance CO₂ adsorbents is provided.
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Science China-Chemistry
·
2026
·
IF 9.8
Wang Yi-Rong,Yue Ming,Zhang Jia-Li,Xia Yuan-Sheng,Yang Le,Li Run-Han,Shi Jing-Wen,Li Qi,Chen Yifa,Li Shun-Li,Lan Ya-Qian
The development of electrocatalytic CO 2 reduction reaction (eCO 2 RR) in upgrading CO 2 into valuable products affords a substantially untapped opportunity to simultaneously achieve a circular economy and tackle environmental problems. However, the current challenges of this process lie in the low efficiency of eCO 2 RR, less explored product-upgrading systems, as well as the unmet while key electrocatalysts. Here, we develop a parallel-integrated eCO 2 RR cascade catalysis system based on a kind of covalent organic framework (Bpy-COF-Co) electrocatalyst with mesoporous nanosphere morphology that enables efficient cascade conversion of CO 2 into carbonyl compounds with high yields. In the parallel eCO 2 RR modules, the specially designed Bpy-COF-Co with the advantages of high porosity, mesoporous nanosphere morphology and active Co sites presents a remarkable CO generation rate with a superior FE CO (∼100%) and thus-generated CO can be simultaneously utilized in a series of backend carbonylation reactions ( e.g. , amino-carbonylation, carbonylative Suzuki coupling, alkoxy-carbonylation and phenoxy-carbonylation). Noteworthy, this system can achieve gram-scale generation of valuable products like pesticide diethyltoluamide (1.81 g, 94.7% yield).
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Junpeng Huang,Wenbo Wang,Hongyang Zhou,Yujie Tao,Bin Liu,Guoxing Zhu,Xiaomeng Lv
Electrocatalytic CO 2 -to-methanol (MeOH) is hindered by the low efficiency of single-site catalysts, primarily due to insufficient local concentration of the key ⁎ CO intermediate. This work aims to construct a dual-site catalyst to synergistically boost ⁎ CO generation and its subsequent hydrogenation, thereby enhancing methanol production. Herein, a cooperative interface was designed by integrating single atoms Ni (SAs Ni) for CO 2 -to-CO conversion and amino-functionalized cobalt phthalocyanine (CoPc-NH 2 ) for methanol formation on N-doped carbon nanotubes ((SAs Ni + CoPc-NH 2 )/N-CNT). The dual-site catalyst achieves a remarkable methanol Faradaic efficiency (FE MeOH ) of 48.7% and a total current density of 45.6 mA cm −2 at −1.05 V vs. RHE, outperforming single-component CoPc-NH 2 /N-CNT (FE max = 28.4%) and physically mixed SAs Ni/N-CNT + CoPc-NH 2 /N-CNT (FE max = 30.6%) in an H-cell. A peak FE MeOH of 51.9% and a methanol partial current density of 103.8 mA cm −2 are achieved in a flow cell. When tested in a membrane electrode assembly (MEA) electrolyzer fed with simulated flue gas (10% CO 2 ), the catalyst delivers a current density of 500 mA cm −2 , while maintaining a FE MeOH of 67.1%. In situ attenuated total reflectance–surface-enhanced infrared absorption spectroscopy (ATR-SEIRAS) confirms the enhanced surface coverage of ⁎ CO and the emergence of the ⁎ CHO intermediate exclusively on the dual-site interface, revealing a synergistic mechanism wherein SAs Ni sites enrich the local ⁎ CO concentration and adjacent CoPc-NH 2 sites facilitate its selective hydrogenation to methanol. This work provides a catalyst design paradigm for efficient CO 2 -to-methanol conversion and offers fundamental insights into constructing cooperative interfaces for multistep electrocatalytic reactions. Download: Download high-res image (185KB) Download: Download full-size image
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·123610
·
IF 7.5
Xiaotong Jiang,Liju Bai,Zixuan Hao,Jianchao Luo,Yaxing Zhang,Wenwei Wu,Can Lv,Mengdie Li,Tejraj M. Aminabhavi,Helei Liu
In continuation of our ongoing studies to explore efficient and stable solvent systems for CO 2 capture, herein a systematic investigation is reported on the absorption-desorption performance, thermal and oxidative degradation of the ternary mixed amine system. Effect of different anti-degradation agents on degradation performance of the system was investigated by investigating absorption and desorption rates. Degradation products and reaction pathways were analyzed via GC-MS technique to show that the ternary system has advantages of fast absorption, high saturated absorption capacity, rapid desorption and complete desorption. Absorption capacity of the system was nearly 7000 mL, while the initial desorption peak rate exceeded 2 mL/s. The absorption-desorption reaction mechanism as well as thermal and oxidative degradation pathways were investigated. By the addition of anti-degradation agent to the mixed solution, thermal and oxidative degradation inhibition was optimal, reducing the thermal degradation rate to 10%. Antioxidant degradation rate decreased by 35% compared to the original system. An excellent mixed amine solution formula with superior comprehensive performance was obtained. The study provided a theoretical basis and technical support for the application of the chosen system in CO 2 capture applications.
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Journal of Environmental Chemical Engineering
·
2026
·
IF 7.5
Hui Liu,Chao Yuan,Jianfeng Wang,Tongsheng Zhang,Binjie Zhou,Penghao Xin,Suping Cui
Carbon capture with chemical absorption method represents a critical pathway toward carbon neutrality in industry. However, its application faces challenges including high capture energy requirement for CO 2 desorption and limited CO 2 utilization routes. This study employed diethanolamine (DEA) as a CO 2 absorbent to prepare CO 2 –absorbed DEA (termed DEA–CO 2 ) with different CO 2 absorption amount. DEA–CO 2 was employed to modulate cement strength development, bypassing the energy-intensive CO 2 desorption step. Effects of DEA–CO 2 on cement hydration and the microstructure of the hardened cement pastes were investigated to reveal the regulation mechanism by in-situ carbonation. Results demonstrate that DEA-CO 2 additions show the potential to enhance 3d and 28d strength. Optimal performance occurs with 0.15% DEA and 0.22% CO 2 (D0.15%C0.22%), elevating 3d and 28d compressive strength by 15.3% and 29.3%, respectively. The enhancement is attributed to the accelerated hydration of aluminates and silicates by DEA–CO 2 to achieve a more condensed structure. Moreover, carbonation in cement pastes by DEA–CO 2 effectively mitigates the retardation effect of 0.15% DEA on early cement hydration. However, in the presence of DEA–CO 2 , the accelerated reaction of C 3 A with gypsum delays C 3 S hydration, especially for D0.15%C1.32%. It is hypothesized that the precipitated CaCO 3 or CaCO 3 –AFm on the surface of cement particles also inhibits further silicates hydration. Therefore, D0.15%C1.32% reduces the compressive strength before 28d. These results confirm the potential of utilizing DEA–CO 2 without desorption to optimize the strength development of cementitious materials, provided that the CO 2 dosage is carefully controlled.
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INORGANIC CHEMISTRY
·
2026
·
IF 4.6
Zhen Sun,Chenming Zhou,Teng Wang,Zhixin Gao,Jin Sun,Renquan Hu,Meng Yan,Zhaolin Na,Ran Su,Yong Yang
Photocatalytic CO2 reduction offers a green strategy to alleviate climate change and address the energy crisis. In this work, indium oxysulfide subnanocoils with a thickness of 0.9 nm were successfully synthesized via a facile solvothermal method. Adjusting the sulfur content not only modulates the band structure and energy level positions but also enables precise control over the morphology of the as-prepared products. The optimized indium oxysulfide subnanocoils exhibit excellent photocatalytic activity for CO2 reduction, with a CO evolution rate of 61.731 μmol h–1 g–1, which ranks among the best performances for indium-based materials reported to date. The enhancement of photocatalytic performance can be attributed to the exceptionally high surface atomic exposure ratio of the unique subnanometer coiled structure. Meanwhile, the sulfur substitution-induced S–O coordination significantly reduces the average valence state of indium, narrows the band gap, and improves the reduction capability of photogenerated electrons. This study provides a feasible approach for the development of high-performance subnanoscale photocatalysts for CO2 reduction.
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ENERGY & FUELS
·
2026
·
IF 6
Yanshuang Xiong,Zhiwei Jian,Ian Jimmy Madatta,Yang Liu,Jinrui Ding
Electroreduction of carbon dioxide (CO2) to produce multicarbon products (C2+) holds immense potential for reducing carbon emissions and realizing high-valued CO2 utilization. However, the development of efficient catalysts still remains challenging. Cuprous oxide (Cu2O) has been identified as a promising candidate, yet its C2+ selectivity and stability require further improvement. In this study, we, for the first time, blended Cu2O with cerium oxide (CeOx) nanoparticles, forming a Cu2O/CeOx hybrid catalyst which greatly enhanced the selectivity and durability for C2+ production. The optimized catalyst achieved a remarkable carbon product Faradaic efficiency (FE) of 79.6% and a C2+ product FE of 58% (±2.4%) in an H-type electrolytic cell. Our findings provide a novel strategy for significantly improving the selectivity, efficiency, and catalyst stability of CO2 electroreduction.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Shuangshuang Yang,Zhicun Chu,Bo Gao,Xiaoli Zheng,Ichiro Imae,Jun Chen,Qun Xu
We report herein the typical conductive polymer poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) to be successfully modified onto single-walled carbon nanotubes (SWCNTs) using a supercritical carbon dioxide (SC CO2) antisolvent-induced polymer epitaxy method, and the role of the experimental temperature of SC CO2 on the modification process was systematically investigated. PEDOT:PSS/SWCNTs composites with optimal modification prepared at 80 °C and 15 MPa were used as functional fillers, and functional temperature-sensitive composite hydrogels of PEDOT:PSS/SWCNTs/poly-N-isopropylacrylamide (PNIPAM) were successfully prepared. With the help of Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and other characterization means, the chemical composition and microscopic morphology of the composite hydrogel were systematically analyzed. The composite hydrogel exhibits reversible temperature-sensitive responsiveness, transitioning from a transparent swollen state at room temperature to an opaque collapsed state at 32 °C, and demonstrates strong adhesion to various substrates, including glass, plastic, metal, and skin. Meanwhile, the near-infrared (NIR) photothermal conversion properties of this hydrogel were evaluated, showing a significant and uniform temperature increase upon NIR irradiation. The drug release behavior was assessed in vitro after loading the hydrophilic anticancer drug 5-fluorouracil (5-FU) with the stimulation of NIR light, achieving an accelerated and on-demand release. Our experimental results indicate that the pore size increases with the increase of the addition of PEDOT:PSS/SWCNTs, enabling the precise controlled release of 5-FU. This work provides new insights and experimental support for the design of intelligent drug delivery systems.
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JOURNAL OF MEMBRANE SCIENCE
·
2026
·
IF 8.8
Jincheng Peng,Lu Tang,Yihao Xiao,Xinxi Huang,Wanbin Li
MOFs are nested into intrinsic micropores of membranes by in situ confined growth. • Rigid MOF units interact with polymer chains and suppress polymer relaxation. • MOFs can reconstruct pore architectures and environments for improving selectivity. • Membranes exhibit enhanced aging resistance and separation performance. • After 180-d aging, CO 2 permeability and CO 2 /N 2 selectivity are 3240 Barrer and 47.3. Polymers of intrinsic microporosity (PIMs) with abundant interconnected pathways are promising for fabricating CO 2 capture membranes with exceptional permeability, but their applications are hindered by the issues of physical aging and insufficient selectivity. In this study, we report in situ confined growth of pore-nested metal-organic frameworks (MOFs) within the intrinsic micropores of PIM membranes as scaffolds to reconstruct their pore architectures for addressing the issues of aging and selectivity. Through a simple two-step immersion process for precursor immobilization followed by coordination, the pore-nested MOFs are constructed within the cavities and homogeneously distributed throughout the membranes. As rigid MOF units interact with polymer chains, suppress polymer segmental relaxation, reinforce polymer matrices, and regulate transport pathways, the rigidified membranes exhibit simultaneously enhanced aging resistance and separation performance, with selectivity markedly increasing from 14.6 to 40.3. After natural aging for 180 days, the membranes still retain a CO 2 permeability of 3240 Barrer, 92.3% of the initial value, alongside a CO 2 /N 2 selectivity of 47.3. This study offers a viable route to reshape transport channels via confined synthesis within micropores for designing high-performance and anti-aging separation membranes. Download: Download high-res image (387KB) Download: Download full-size image
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Wang Shichong,Wang Xinran,Wang Shuanjin,Xiao Min,Han Dongmei,Guo Hui,Huang Sheng,Meng Yuezhong
Photovoltaic
(PV) encapsulants play a pivotal role in ensuring
the long-term reliability of solar modules by protecting sensitive
cells from moisture ingress, mechanical stress, and ultraviolet (UV)
degradation. However, conventional encapsulant materials, such as
ethylene-vinyl acetate, polyolefin elastomer, and polyvinyl butyral,
exhibit several inherent limitations, including a high water vapor
transmission rate, poor delamination resistance, and easy formation
of optical haze under long-term UV irradiation in hygrothermal conditions.
To address these challenges, we herein design a CO 2 -derived
aliphatic polycarbonate-based thermoplastic polyurethane (TPU) as
a PV encapsulant, which combines high transmittance (>90.5%), flexibility,
superior water vapor barrier properties (WVP < 12.42 g·mm
m –2 day –1 ), moisture insensitivity,
and strong adhesion to PV glass and backsheet substrates. More specifically,
the multiblock TPU is synthesized via the polyaddition of poly(propylene
carbonate)diol, polyether diol, hexamethylene diisocyanate, and 1,4-butanediol.
Upon optimizing the chemical composition and incorporating proper
additives (e.g., silicone coupling agents, UV absorbers, antioxidants),
the encapsulant achieves enhanced interfacial adhesion with a peel
strength of 87.2 N cm –1 and maintains a residual
peel strength of 73.4 N cm –1 following accelerated
UV aging. Additionally, the adhesion mechanism based on TPU is proposed
and preliminarily elucidated. This study tackles key challenges in
photovoltaic module encapsulation by developing this high-performance
alternative material, demonstrating significant potential for large-scale
industrial applications.
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Science Advances
·
2026
·Vol. 12
·期 29
·
IF 13.9
Pan Zhu,Lixuan Ma,Xudong Yang,Xiao-Hong Yi,Jundong Wang,Chunlu Ding,Xin Li,Meng Lin,Wen Liu,Chong-Chen Wang,Huazhang Zhao,Zishuai Zhang
Conventional carbon dioxide (CO 2 ) capture systems are constrained by limited uptake capacity and energy-intensive regeneration. Here, we formulate a microporous carbon capture solution (MCCS) by dispersing a permanent-porosity framework (ZIF-67) in a liquid absorbent, coupling solvent-excluded physisorption with chemical uptake and boosting the CO 2 capture capacity by ∼45%. Instead of bulk thermal stripping, we implement interfacial, microbubble-activated regeneration (MAR) with a decreased monoethanolamine (MEA) loss rate by ∼38%. Microbubble activation refreshes gas-liquid-solid contact to liberate 100% physiosorbed CO 2 , whereas microbubble-collapse events that mechanically trigger contact electrocatalysis (CEC), enabling interfacial hydroxyl radicals (•OH) that cleave carbamates under mild conditions and regenerates a substantial additional 37 to 55% of chemically absorbed CO 2 . Theoretical analyses reveal that •OH is the key species governing CO 2 regeneration in the CEC-MAR process through oxidative carbon-nitrogen bond cleavage, followed by •H-assisted intermediate reduction to regenerate the amine. To approach engineering relevance, we realize kilogram-scale zeolitic imidazolate framework (ZIF) synthesis under ambient conditions using simple mechanical stirring, providing scalable MCCS inventory to enable (i) continuous delivery of high-purity CO 2 (1437 millimoles over 200 minutes) from a laboratory-scale integrated system and (ii) direct electroreduction to carbon monoxide (CO) with a faradaic efficiency (FE CO ) of 51% without CO 2 supply. More broadly, it establishes a porous-liquid, interfacial-regeneration paradigm that decouples capacity from stoichiometry and enables electrified, continuous CO 2 capture, regeneration, and utilization under scalable, low-temperature conditions.
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