JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Yi Zhou,Peike Cao,Shuo Chen,Hongtao Yu,Xie Quan
Selectively converting carbon dioxide (CO 2 ) to ethanol via photocatalysis offers a sustainable means of storing solar energy in chemical bonds. However, its efficiency is limited by an inadequate proton supply from water oxidation to drive the carbon‑carbon (C C) coupling step. This inefficiency leads to poor ethanol selectivity and promotes a competing hydrogen evolution side reaction, ultimately restricting overall system performance. Here, we designed a ternary In(OH) 3 -Cu 2 O/PCN heterojunction as a functionally partitioned catalyst: Polymeric carbon nitride (PCN) acts as the photoelectron donor, cuprous oxide (Cu 2 O) acts as the CO 2 reduction center, and trace indium hydroxide (In(OH) 3 ) is dedicated to water oxidation. Density Functional Theory (DFT) calculations reveal that water dissociation on In(OH) 3 generates active hydrogen species (*H), which are subsequently transferred to adjacent Cu sites with a low migration barrier. This interfacial proton relay mechanism avoids the accumulation of high-energy *H intermediates on the active sites, which suppresses the competing hydrogen evolution reaction. Correspondingly, the energy barrier for the crucial adsorbed carbon monoxide (*CO) dimerization step is lowered from 0.93 eV to 0.78 eV. The catalyst demonstrates superior activity to most documented photocatalysts for CO 2 -to-ethanol conversion, operating under sacrificial agent-free conditions, achieving an ethanol production rate of 125.4 ± 5.1 μmol g −1 h −1 and a selectivity of 90.4% ± 2.8%. These findings highlight the promise of functionally partitioned architectures in steering complex multi-step photocatalytic transformations toward valuable multi‑carbon products.
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PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
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IF 7.6
Bowen Li,Shuang Zheng,Guilin Li,Jiang Chang,Lu Bai,Yinge Bai,Xiangping Zhang,Shaojuan Zeng
To address the growing demand for efficient low-concentration CO2 capture from flue gas, functionalized ionic liquid (IL) hybrids─integrating ILs’ intrinsic CO2-philicity (specific functional group-CO2 interactions) and porous supports’ structural merits (high specific surface area, tunable pores, robust framework)─have emerged as promising adsorbents. In this work, a kind of novel polyamine IL (PIL) hybrid with narrowly distributed mesopores and ultrahigh IL loading over 70 wt % was fabricated by immobilizing the PIL triethyltetramine trifluoromethanesulfonate ([TETA][TfO]) onto a hydrophobic resin (XAD) featuring wide mesopores and a small fraction of macropores. At 313 K, 70 wt % [TETA][TfO]@XAD exhibited a high CO2 adsorption capacity of 3.09 mmolCO2/g-adsorbent at 1 bar and 2.35 mmol CO2/g-adsorbent at 0.15 bar. Notably, under simulated humid flue gas conditions (15 vol % CO2/5 vol % H2O balanced with N2), the PIL hybrid still could maintain a relatively stable adsorption capacity of 1.31 mmol CO2/g-adsorbent, which is comparable to that under dry flue gas conditions (1.24 mmol CO2/g-adsorbent, 15 vol % CO2 balanced with N2). Furthermore, after three consecutive adsorption–desorption cycles, the PIL hybrid maintained structural integrity and stable CO2 adsorption performance without significant attenuation under both dry and humid environments. The superior CO2 separation performance was attributed to the chemical interactions between CO2 and multiple amino groups (one secondary amine as well as two primary amines) of [TETA]+, coupled with the synergistic effect of the in situ-formed mesoporous structures. This work provides a feasible strategy for the rational design and development of mesoporous PIL hybrids for the efficient capture of low-concentration CO2 from flue gas.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
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IF 5.1
Xin Li,Jiping Mu,Yibo Fu,Xiaofang Su,Zhenzhen Wang,Zhiyong Li
The separation of acetylene (C 2 H 2 ) from carbon dioxide (CO 2 ) and its subsequent storage remain formidable challenges in the petrochemical industry due to their nearly identical kinetic diameters and similar physical properties, which render conventional adsorption methods inefficient. Herein, we report an anion-pillared ultra-microporous metal–organic framework, Ni-TiF 6 -T4PP, engineered with tailored pore geometry and selective binding sites to achieve efficient C 2 H 2 /CO 2 separation. This material exhibits a high C 2 H 2 uptake of 3.99 mmol g −1 at 298 K and 1 bar. The pore environment, enriched with nitrogen and fluorine sites, promotes host–guest interactions with C 2 H 2 , resulting in a substantial differential in the isosteric heats of adsorption (Q st ): 36.04 kJ mol −1 for C 2 H 2 versus 19.35 kJ mol −1 for CO 2 . Combined with its low regeneration energy barrier, the framework can be readily regenerated, contributing to its recyclability. Breakthrough experiments demonstrate achieves separation performance for equimolar C 2 H 2 /CO 2 mixtures. At 353 K, a C 2 H 2 mixture with an initial concentration of 90% can be purified to achieve a final purity of > 99.2%. Based on the combined evidence from in situ infrared spectroscopy and molecular simulation, the underlying gas adsorption mechanism has been conclusively established that the extended π-surfaces of porphyrin and pyridine moieties enable multipoint cooperative binding with C 2 H 2 .
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2026
·
IF 7.6
Hong-Mei Jiang,Jian Sheng,Shu-Zhen Zhou,Hang Yao,Fan Tang,Dongqi Wang
Developing high-performance, non-precious-metal catalysts that operate efficiently at low temperatures remains a pivotal challenge for CO2 methanation, particularly for systems with high active metal loadings where nanoparticle sintering often compromises performance. Herein, Mn-promoted Ni/ZrO2 catalysts with 40 wt % Ni were prepared via a Pechini method, demonstrating exceptional low-temperature performance. Under atmospheric pressure, the optimized 5Mn–Ni/ZrO2 catalyst achieved stable 70% CO2 conversion, near-100% CH4 selectivity, and a stable CH4 yield of 150 mmol/g/h for 117 h at 225 °C. Comprehensive characterization (XRD, TEM, XPS, H2-TPR, CO2-TPD, H2-TPD) revealed that Mn doping facilitates NiO reduction with higher Ni dispersion, increases electron density on Ni sites, and increases the population of medium-strength basic sites and oxygen vacancies on the ZrO2 support. These synergistic modifications collectively promote CO2 adsorption, H2 adsorption, and catalyst reducibility. In situ DRIFTS further identified a formate-mediated pathway, in which Mn promotes the stabilization and subsequent hydrogenation of the HCOO* intermediate. This work demonstrates that rational exploitation of promoter-support synergy can overcome the dispersion limitations inherent to high-loading Ni catalysts, providing an effective design strategy for advanced, low-temperature CO2 methanation catalysts.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
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2026
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IF 5.1
Ijaz Ul Haq,Wang Jie,Shuqin Miao,Weihua Shen,Yunjin Fang
Poly(propylene carbonate) (PPC), a sustainable polymer derived from CO 2 , has emerged as an attractive alternative to petrochemical-based polyether polyols. Nevertheless, achieving high activity, a perfectly alternating microstructure, narrow dispersity (Đ), and excellent selectivity simultaneously in PPC synthesis has remained challenging. Herein, a binary catalyst system composed of tetrabutylammonium hydrogen sulfate or tetrabutylphosphonium hydrogen sulfate (TBAHS or TBPHS) in combination with triethylboron (Et 3 B) is reported. Density functional theory (DFT) calculations revealed that CO 2 is initially activated by the hydrogen sulfate anion to generate a carbonate intermediate, which subsequently undergoes nucleophilic attack on propylene oxide (PO) activated by Et 3 B. Under optimized conditions, the TBPHS/Et 3 B system delivered a turnover frequency (TOF) of 1051 h⁻ 1 , an average molecular weight (Mn) of 57.88 kg mol⁻ 1 , Đ = 1.67, 99 % selectivity, and perfect alternating PPC. This binary system thus provides a scalable and environmentally benign route to CO 2 utilization, establishing a compelling platform for commercial PPC production with high activity, excellent selectivity, and precise alternating microstructural control.
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高影响因子
JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 9
Ning Li,Jinke Wang,Shilin Nie,Yuanyuan wang,Leixin Yang,Ge Wang,Yuchao Ma,Dengkun Shu,Chenyang Li,Kaihua Li,Chen Luo,Bowen Cheng
The escalating demand for carbon capture has heightened interest in membrane-based gas separation technologies. Nevertheless, conventional polymeric membranes are constrained by plasticization and the trade-off between permeability and selectivity. In this study, we proposed a slightly branch-structure design strategy to construct branched polyimide (PI), which significantly enhances gas separation performance and anti-plasticization properties. With the incorporation of branched agent, the linear PI converts to branched PI, which suppresses chain dense packing and provides more free volume elements. Therefore, the branching architecture effectively restricts segmental mobility and reinforces interchain rigidity of PI, leading to significantly improved plasticization resistance from 16 atm to 30 atm. Interestingly, with the increase of rigid and free volume, the permeability and selectivity improved simultaneously in branched PI. Specifically, compared with pristine PI, the CO 2 permeability and CO 2 /CH 4 selectivity are increased by 139.7 % and 20 % in branched PI with 5wt% modification, respectively. Our findings proposed a simple and effective strategy for designing industrial polymers with improved performance and anti-plasticization properties for practical applications in gas separation membranes.
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高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9
Shuai Wang,Yu Feng,Yue Gu,Ziru Zhao,Shufeng Shen
Aqueous amine-based solvents remain the state-of-the-art technology for post-combustion CO 2 capture, but their deployment is mostly hindered by high regeneration energy requirement. To overcome the limitation, novel formulated water-lean monophasic absorbents of aromatic secondary amine N -methylbenzylamine (NMBZA or N) and weakly polar glycol ethers (XE) were developed to exhibit attractive characteristics such as low volatility and low-temperature thermal desorption. Effect of CO 2 absorption and desorption conditions on capture performances of water-lean solvents were evaluated and compared with aqueous 30 mass % MEA under the same conditions. Water-lean formulation (N-BE(2-butoxyethanol)-W) with about 10 mass% (W) water was proposed and their energetic performances were comprehensively discussed based on two methods (i.e. indirect blank method and direct method), achieving faster desorption kinetics, about 150 % higher cyclic capacity and about 20–50 % reduction in regeneration energy than aqueous MEA during the absorption (313 K )-desorption (373 K) cycle. Interestingly, low-temperature desorption at about 363 K for 65 N-25BE-10 W can increase the cyclic capacity by 80 % more while reduce the regeneration energy by about 40 % (i.e., 1.9–2.0 MJ·kg −1 CO 2 ) in comparison to aqueous MEA, showing the potential of using low-grade industrial waste heat sources.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 13.2
Bo Xue,Chuanruo Yang,Ruihan Wang,Ting Wang,Pengtao Guo,Gan Li,Dahuan Liu
The development of high-performance porous adsorbents for the efficient recovery of C 2 H 2 from C 2 H 2 /CO 2 mixtures holds significant industrial value. However, the separation of C 2 H 2 /CO 2 remains highly challenging due to their similarities in physicochemical properties. To tackle this key obstacle, we utilize a feasible fluorinated anion modulation strategy to optimize the negative electrostatic microenvironment of ultra-microporous MOFs for the preferential recognition of C 2 H 2 . Notably, compared to SIFSIX-dpds-Cu, TIFSIX-dpds-Cu exhibits higher C 2 H 2 uptake (81.0 cm 3 g −1 ) and C 2 H 2 /CO 2 selectivity (43.2). Furthermore, the C 2 H 2 packing density of TIFSIX-dpds-Cu can reach 522 g L −1 , outperforming most previously reported materials. Density functional theory calculations and in situ FT-IR spectra collaboratively demonstrate that the multiple C−H···F and C−H···C interactions are formed between TIFSIX-dpds-Cu and C 2 H 2 molecules. With the synergistic drive of multiple hydrogen bonds and van der Waals forces within the confined pores, ultimately achieving efficient C 2 H 2 purification. Breakthrough experiments reveal that TIFSIX-dpds-Cu achieves complete separation of C 2 H 2 /CO 2 mixtures, yielding the high-purity C 2 H 2 productivity (≥99.5 %) of 58.42 cm 3 g −1 in a single adsorption−desorption cycle.
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高影响因子
ACS Sustainable Chemistry & Engineering
·
2017
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IF 5.951
Yu Guo,Junma Zou,Xiao Shi,Patrick Rukundo,Zhou-jun Wang
A nanocomposite Ni/CeO2–CDC-SiC catalyst which consists of highly dispersed Ni nanoparticles contacting intimately with CeO2 nanoparticles on a nanoporous carbide-derived carbon (CDC) layer over SiC support has been successfully designed for carbon dioxide (CO2) reforming of methane. In comparison with the Ni/CDC-SiC catalyst, the ceria-promoted Ni/CDC-SiC catalyst possessed enhanced activity and improved stability. The catalysts were systematically characterized with N2 sorption, X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray spectrometry elemental mapping, thermogravimetric/differential thermal analysis, temperature-programmed reduction, and X-ray photoelectron spectroscopy measurements. It was found that, after introducing CeO2 promoter, the specific surface area was increased, and a smaller Ni particle size was obtained. The smaller Ni particle size led to an enhanced reforming activity. The presence of abundant Ni–CeO2 interfaces on the CeO2-promoted catalyst accelerated the carbon removal through the lattice oxygen species, which resulted in superior carbon resistance and thus an improved stability. The outcome of the present work is expected to shed meaningful insight into the design of nanocomposite catalysts with the aid of metal–oxide interfaces.
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JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
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2019
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IF 1.479
Haiwang Wang,Jinlong Li,Wenge Liu,Xin Xu,Xinfang Wei,Li Chao,Ruifeng Zhao,Xiwei Qi,Ling Che
Co3O4, a transition metal oxide with spinel structure, has attracted wide attention due to its high catalytic activity in the field of catalytic oxidation of low concentration methane. However, due to the harsh conditions of methane catalytic reaction on catalysts, of which the high reaction temperature and complex reaction environment often lead to the deactivation and sintering of Co3O4 catalyst, improving the comprehensive performance of Co3O4 catalyst has become the current research hotspot and urgent demand. Core-shell flower-spheroidal cobalt-manganese composite catalyst was prepared in this paper by hydrothermal method, which gave full play to the advantages of carrier, special morphology and doping modification, reduced the risk of sintering and deactivation of Co3O4, and showed higher catalytic activity. Through SEM, EDS, and BET test and analysis, Mn1/Co/SiO2 has better microstructure and structure than Co3O4/SiO2. For example, the dispersion of Mn1/Co/SiO2 and the uniform distribution of elements are higher, and the values of surface area and pore volume are larger (129.956 m2/g → 180.639 m2/g, 0.333363 cm3/g → 0.398030 cm3/g). Combined with XRD and XPS analysis, it is concluded that Mn2+ manganese ion replaces Co2+ and causes lattice distortion of Co3O4, which promotes the production and mobility of reactive oxygen species, further increasing catalytic activity. Compared with Co3O4/SiO2, methane conversion at 350 °C and 450 °C increased by 10% and 6%, respectively.
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高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2026
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IF 7.9
Zhenzhen Wang,Liujun Wang,Chen Yuan,Bengao Yuan,Zhe Wang,Zhonghua Sun,Zhihui Zhang,Bing Lu,Ping Liu,Mingyang He,Junfeng Qian
The catalytic conversion of CO 2 to formic acid (FA) represents a promising route for carbon utilization and sustainable chemical production. However, this process faces thermodynamic limitations and requires highly efficient catalysts. Conventional synthesis methods often lead to structural inhomogeneity and involve complex procedures, constraining their efficiency and scalability. To overcome these limitations, we developed a one-pot solvothermal approach combined with calcination to fabricate Ru/CeO 2 catalysts. The as-synthesized catalysts feature atomically dispersed Ru species, a significantly increased concentration of oxygen vacancies on CeO 2 , and enhanced metal-support interactions, which work synergistically to promote reactant activation and catalytic performance. Under mild reaction conditions, the optimized Ru/CeO 2 catalyst delivered high performance, achieving a turnover number (TON) of 1112 and a turnover frequency (TOF) of 139 h −1 . Moreover, the catalyst maintained high stability and recyclability over multiple reaction cycles, underscoring its potential for industrial implementation. This study offers an efficient and scalable synthesis strategy for designing high-performance heterogeneous catalysts, thereby advancing carbon emission mitigation and sustainable chemical synthesis.
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高影响因子
Sustainable Materials and Technologies
·
2026
·
IF 9.7
Qian Zhang,Yi Chen,Miaomiao Xiao,Xin Zhang,Langlang Wang,Xiang Li,Xin Sun,Kai Li,Ping Ning,Yixing Ma,Xueqian Wang
The integration of non-thermal plasma (NTP) with supported metal catalysts presents a promising strategy for the conversion of carbon dioxide under mild conditions. This study prepared catalysts at relatively low temperatures and employed dielectric barrier discharge (DBD) plasma to drive CO 2 hydrogenation under low-temperature reaction conditions. The optimization effect of CeO 2 loading on the performance of Ni/ZSM-5 catalysts was systematically investigated. The results indicate that the 15Ni-15Ce/ZSM-5 catalyst exhibits the most optimal performance. At a specific energy input (SEI) of 21.65 kJ/L, the CO 2 conversion rate reaches 88.6%, representing a more than fourfold improvement over the 15Ni/ZSM-5 catalyst. The selectivities for CH 4 , C 2 H 6 , and C 3 H 8 are 90.4%, 6.8%, and 2.0%, respectively. Characterization revealed that optimized low-temperature preparation conditions successfully generated highly dispersed metallic Ni 0 active sites. The introduction of CeO 2 further reduced Ni 0 particle size and created abundant oxygen vacancies. The 15Ni-15Ce/ZSM-5 catalyst enhances CO 2 adsorption and activation through oxygen vacancy-enhanced mechanisms, while NTP generates active H atoms from H 2 . Both processes synergistically drive efficient reaction progress. In situ DRIFTS analysis of surface species on 15Ni/ZSM-5 and 15Ni-15Ce/ZSM-5 catalysts under NTP conditions revealed the mechanism of NTP-catalyzed CO 2 methanation. Results indicate that hydrogenation on 15Ni/ZSM-5 primarily follows the CO pathway. After the introduction of CeO 2 , the reaction pathway changes, with the 15Ni-15Ce/ZSM-5 catalyst achieving highly selective hydrogenation mainly through the b-HCOO pathway.
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高影响因子
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