APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Guojun Li,Zhen Chen,Yunlong Wang,Haiwei Su,Yida Xie,Shule Zhang,Qin Zhong,Junhua Li
A reversible Bi 0 /Bi 2 O 2 CO 3 functional layer was constructed on CuBi 2 O 4 via in situ solvothermal reconstruction. • The Bi/BOC layer suppresses metal dissolution and irreversible catalyst reconstruction during CO 2 electroreduction. • The Bi/BOC heterointerface optimizes Bi electronic states and lowers the energy barrier for *OCHO formation. • Bi/BOC@CBO achieves high stability and Faradaic efficiency for formate production. Achieving high activity and exceptional operational stability remains challenging for electrocatalytic CO 2 reduction, primarily due to metal dissolution and structural reconstruction of catalysts under CO 2 RR conditions. Herein, we developed an in situ solvothermal strategy to preconstruct a structurally reversible Bi 0 /Bi 2 O 2 CO 3 (Bi/BOC) functional layer on CuBi 2 O 4 , transforming otherwise uncontrolled reconstruction into a regulated interfacial structural response. The resulting Bi/BOC functional layer enhances catalyst stability by combining physical surface protection against metal dissolution with reversible Bi 0 ↔ Bi 2 O 2 CO 3 structural evolution, thereby markedly suppressing uncontrolled dissolution and reconstruction during prolonged CO 2 electroreduction. Meanwhile, the Bi/BOC heterointerface modulates the electronic structure of Bi sites and interfacial proton transfer, lowering the energy barrier for *OCHO formation and enhancing CO 2 -to-formate conversion. Consequently, the Bi/BOC@CBO catalyst achieves a formate Faradaic efficiency of 96.9% with a production rate of 3.64 mmol·h −1 ·cm −2 at 200 mA·cm −2 , while maintaining 94.6% FE over 90 h. This work establishes structurally reversible functional-layer engineering as an effective approach to regulate catalyst reconstruction and balance catalytic performance with structural stability in multimetallic electrocatalysts for CO 2 reduction. Download: Download high-res image (220KB) Download: Download full-size image
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高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2022
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IF 10.319
Jinfeng Zhang,Junwei Fu,Kai Dai
Photocatalytic reduction of CO 2 into valuable fuels is one of the potential strategies to solve the carbon cycle and energy crisis. Graphitic carbon nitride (g-C 3 N 4 ), as a typical two-dimensional (2D) semiconductor with a bandgap of ∼2.7 eV, has attracted wide attention in photocatalytic CO 2 reduction. However, the performance of g-C 3 N 4 is greatly limited by the rapid recombination of photogenerated charge carriers and weak CO 2 activation capacity. Construction of van der Waals heterostructure with the maximum interface contact area can improve the transfer/seperation efficiency of interface charge carriers. Ultrathin metal antimony (Sb) nanosheet (antimonene) with high carrier mobility and 2D layered structure, is a good candidate material to construct 2D/2D Sb/g-C 3 N 4 van der Waals heterostructure. In this work, the density functional theory (DFT) calculations indicated that antimonene has higher carrier mobility than g-C 3 N 4 nanosheets. Obvious charge transfer and in-plane structure distortion will occur at the interface of Sb/g-C 3 N 4 , which endow stronger CO 2 activation ability on di-coordinated N active site. The ultrathin g-C 3 N 4 and antimonene nanosheets were prepared by ultrasonic exfoliation method, and Sb/g-C 3 N 4 van der Waals heterostructures were constructed by self-assembly process. The photoluminescence (PL) and time-resolved photoluminescence (TRPL) indicated that the Sb/g-C 3 N 4 van der Waals heterostructures have a better photogenerated charge separation efficiency than pure g-C 3 N 4 nanosheets. In-situ FTIR spectroscopy demonstrated a stronger ability of CO 2 activation to *COOH on Sb/g-C 3 N 4 van der Waals heterostructure. As a result, the Sb/g-C 3 N 4 van der Waals heterostructures showed a higher CO yield with 2.03 umol g −1 h −1 , which is 3.2 times that of pure g-C 3 N 4 . This work provides a reference for activating CO 2 and promoting CO 2 reduction by van der Waals heterostructure.
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ACS Applied Materials & Interfaces
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2025
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IF 8.2
Yingying Li,Guangyao Zhang,Deqi Fan,Zongze Li,Yi Lu
Achieving efficient and selective solar-driven CO2 reduction remains a grand challenge due to sluggish proton–electron transfer kinetics and limited reactant availability at catalytic interfaces. Herein, we present a hierarchically structured aerogel integrating triazine-based covalent organic frameworks (TCOF) with Nb2CTx MXene nanosheets embedded in a poly(vinyl alcohol)/sodium alginate (PVA/SA) matrix. The aerogel leverages broadband light harvesting, hierarchical water regulation, and localized photothermal activation to enhance multielectron CO2 conversion. The hydrophilic–hydrophobic PVA/SA scaffold promotes rapid water uptake and vapor-phase transport, while Nb2CTx enables efficient near-infrared-induced heating to establish a proton-rich interfacial microenvironment. Simultaneously, the porous TCOF network offers abundant CO2 adsorption and activation sites. This synergistic architecture facilitates stable proton-coupled electron transfer (PCET) pathways and C–C coupling. In situ spectroscopic analyses reveal enhanced formation and stabilization of *COOH, *CH3, and *OCCHO intermediates under photothermal conditions, evidencing facilitated C–C coupling for C2 product generation. Under 3-sun irradiation for 3 h, the optimized TCOF/Nb2CTx aerogel delivers exceptional yields of 119.3 μmol·g–1 CH4 and 94.9 μmol·g–1 C2H4, which is 2-fold higher than powder analogues and surpassing previous COF/MXene systems. This work demonstrates a generalizable strategy to engineer carbohydrate polymer-based aerogels with integrated light-to-heat conversion, vapor regulation, and catalytic site accessibility for efficient solar-to-chemical fuel generation.
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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
Qiang Fang,Yunzhen Jia,Tao Zhao,Geng Li,Xuelei Lang,Ziyao Yang,Jianjun Ma,Dazhong Zhong,Jinping Li,Qiang Zhao
Acidic electrochemical CO 2 reduction (CO 2 RR) to high-value C 2+ products offers a promising route for CO 2 utilization. However, it still faces severe challenges: competitive hydrogen evolution reaction (HER) and slow C C coupling. To address these issues, we propose a defect engineering strategy by Fe-doped carbon nitride (FeCN) modification to reduce Cu defect formation energy, thereby inducing abundant and stable surface defects. We synthesized a magnetron-sputtered Cu nanoparticle (MSCu) catalyst modified with FeCN (MSCu-FeCN) and evaluated its performance in a membrane electrode assembly (MEA) under acidic conditions. At 500 mA·cm −2 , MSCu-FeCN achieves a remarkable C 2+ Faradaic efficiency (FE) of 73.07 % and a single-pass CO 2 conversion efficiency (SPCE) of 57.30 % with a full-cell voltage of 3.88 V, significantly superior to the original MSCu. Density functional theory (DFT) calculations, cyclic voltammetry curves, and in-situ attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy confirm that FeCN lowers Cu defect formation energy, increases surface defect density, enhances *CO intermediate coverage, thereby promoting C C coupling. This work presents a defect engineering approach enabling high-efficiency acidic CO 2 RR, while providing pivotal insights for industrial-grade electrocatalytic systems.
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高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Zicheng Yang,Ziyang Xu,Jiale Ni,Yi Feng,Jianfeng Yao
Zeolitic imidazolate frameworks (ZIFs), such as ZIF-8, have emerged as promising heterogeneous catalysts for CO 2 fixation, but their direct application suffers from insufficient Lewis acidity and microporosity-limited mass transport. This work addresses these limitations by synthesizing cetyltrimethylammonium bromide (CTAB)-induced ZIF nanowire precursors followed by rapid low-temperature air calcination (350 °C, 10 min) to produce activated ZIF-8 nanowires (ZIF-8 NWs). This treatment transforms the unstable precursor into a robust ZIF-8 structure, significantly increasing the specific surface area (from 211 to 637 m 2 /g), CO 2 uptake (from 20.7 to 29 cm 3 /g) and Lewis acidity. The resulting ZIF-8 NWs exhibit exceptional catalytic performance in the solvent-free cycloaddition of CO 2 with epoxide (89.5 % yield at 10 h under 80 °C and 0.1 MPa), surpassing that of conventional ZIF-8 nanoparticles (36 %) and ZIF-8 nanosheets (48.9 %), highlighting the key role of morphology and acidity in catalytic CO 2 conversion to cyclic carbonates.
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Surfaces and Interfaces
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2025
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IF 6.3
Sung-Jun Lee,Kwang-Kyu Lee,Chang-Lae Kim,Dong-Gyu Ahn
This study investigated the synergistic effects of three-dimensional lattice structures and zeolite Y coatings on CO 2 adsorption. Three different lattice geometries (simple cubic, octet, and Weaire-Phelan) were fabricated using fused deposition modeling (FDM) with varying unit cell thicknesses. Six candidate materials were evaluated for CO 2 adsorption capacity, with zeolite powder exhibiting the highest performance at 77.46 cm 3 /g STP. The selected zeolite powder was characterized using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and nitrogen (N 2 ) adsorption-desorption analysis, revealing a Brunauer-Emmett-Teller (BET) surface area of 616.31 m 2 /g with 99.9% micropore contribution. XRD and FTIR analyses confirmed the Y-type zeolite structure with a Si/Al ratio of 1.3. Surface area analysis showed that the octet and Weaire-Phelan structures achieved maximum values of 18,816 mm 2 and 19,088 mm 2 , respectively, at a 2 mm unit cell thickness, representing a three-fold increase compared to that of a solid cube. CO 2 adsorption experiments demonstrated that the Weaire-Phelan structure exhibited the highest adsorption capacity (0.061 g CO 2 /g structure), followed by the octet and simple cubic structures. The 73% desorption efficiency confirmed physisorption-dominated mechanisms suitable for pressure-swing adsorption (PSA) processes. The results established a direct correlation between coating amount and adsorption performance, with lattice geometry playing a critical role in determining coating efficiency even at similar surface areas.
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JOURNAL OF CATALYSIS
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2018
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IF 6.759
Somboon Chaemchuen,Xuan Xiao,Marzieh Ghadamyari,Bibimaryam Mousavi,Nikom Klomkliang,Ye Yuan,Francis Verpoort
A robust catalyst generated from the pyrolysis of bimetallic Zn/Co-ZIF comprising magnetic properties demonstrated to be an effective heterogeneous catalyst system for CO 2 conversion reaction without the need of co-catalyst and solvent. Controllable pyrolysis under various conditions resulted in a unique active structure composed of metallic particles stabilized in a nitrogen-doped carbon matrix. The metallic particles acting as acid sites are dispersed in a nitrogen-doped porous carbon-wall which provides the basic sites. These sites are created during the pyrolysis process of Zn/Co-ZIF used as a special template under a controlled atmosphere. The resulting material possessing both, acid and basic sites, showed an excellent catalytic performance for the cycloaddition of CO 2 into epoxides as these sites correspond to the active sites in the catalytic cycle. Additional, the pyrolysis conditions indicated to play an important role in the properties of the resulting materials and in parallel with the catalytic performance. The catalytic material proved to be very robust and maintained high activities for at least eleven cycles using the optimized reaction condition. Moreover, the magnetic property of the resulting catalyst is advantageous especially for the separation from the reaction mixture.
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Journal of CO2 Utilization
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2026
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IF 8.6
Ruifeng Zhou,Muhammad Shuaib Khan,Xianwei Fu,Qiuye Li
The extensive utilization of fossil fuels has accelerated greenhouse gas emissions, triggering climate issues that have become a global concern. The integration of waste valorization with CO 2 capture agent development is recognized as a green, cost-effective, and efficient approach to achieving carbon neutrality and environmental protection. In this study, porous SiO 2 supports (specific surface area 809.35 m 2 /g) are fabricated from coal-fired power plant waste (fly ash) to synthesize a series of co-modified amine-functionalized adsorbents for CO 2 capture. Through a strategic combination of KH550 (Aminopropyltriethoxysilane) hydrolytic grafting and PEHA (Pentaethylenehexaamine) wet impregnation, a polyamine network is constructed, endowing the co-modified adsorbent CS-4K 50PEHA with superior CO 2 uptake (4.933 mmol/g, 70℃) and exceptional thermal stability. Thermogravimetric-infrared analysis and DFT calculations confirmed the chemical bonding of KH550 to the support, with the co-modified adsorbent exhibiting enhanced thermal stability (thermal decomposition temperature 320℃) compared to singly-modified counterparts. Furthermore, the structure-activity relationship between silane coupling agents and the support during hydrolysis is systematically investigated. The synergistic effect of polyamine active sites on the CO 2 adsorption mechanism is elucidated through in situ DRIFTS and DFT simulations. This work provides molecular-level insights into different amine modification strategies for solid waste-based supports, highlighting the significance of cooperative adsorption mechanisms at the intersection of waste valorization and carbon capture technologies.
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高影响因子
APPLIED SURFACE SCIENCE
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2026
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IF 6.6
Rongjing Jia,Shuling Chang,Ruirui Wang,Yanhong Xu,Rijie Wang,Lihong Zhang
The electrocatalytic CO 2 reduction reaction to CO (ECO 2 RR) is an effective way to achieve carbon resource utilization. It requires catalysts that can synergistically couple CO 2 activation with efficient CO desorption. This work engineers this synergy by constructing an interfacial Ag δ+ -O-Zn configuration on Zn(OH)F-derived supports via controlled Ag loading (0–5 wt%). The optimal catalyst (3A/Z, 3 wt% Ag) balances the formation of interfacial, oxidized Ag species (Ag δ+ ) with well-dispersed metallic Ag 0 nanoparticles. It achieves a CO Faradaic efficiency of 95.4% at −1.15 V vs. RHE and maintains 86% efficiency over 5 h at 6.38 mA cm −2 . In-situ ATR-SEIRAS spectra and kinetics reveal that Ag δ+ -related sites lower the barrier for *COOH formation, while adjacent Ag 0 domains facilitate *CO desorption. Excessive loading (5A/Z) promotes Ag aggregation and support decomposition, diminishing the critical Ag δ+ -O-Zn interface and performance. This study highlights interface coordination engineering as a key strategy for designing bifunctional ECO 2 RR catalysts.
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高影响因子
iScience
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2026
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IF 4.5
Qixian xie,Bowen Guo,Yichen Zhang,Tianze Yang,Chenfang Cui,Zhengliang Liu,Honglin Yao,Baili Li,Wurong Ren
The integration of the KHCO 3 fed bipolar membrane (BPM) electrolyzer with KOH based CO 2 capture enables directly in situ conversion of captured CO 2 into valuable carbonaceous products, eliminating costly CO 2 recovery and compression steps. Even this integrated BPM system assembly holds promise, the critical lack of CO 2 adsorption intermediate species tracking necessitates the development of a monitoring platform. This work pioneers a novel dual-modal strategy employing simultaneous indicator-based sensing with in situ UV-Vis spectroscopy, achieving real time visualization of triphasic dynamics during integrated CO 2 capture-regeneration-conversion. Within this synergistic process involving Ar-saturated KHCO 3 decomposition, and electrochemical reduction, an etched indium (In) catalyst achieves 50% formate Faradaic efficiency (FE) at -1.1 V vs. RHE. The synergistic application of these complementary in situ diagnostics unlocks fundamental mechanistic insights into integrated CO 2 capture and conversion systems, establishing them as critical enablers for advancing efficient and scalable electrochemical CO 2 valorization.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 19.7
Qi Qin,Cheng-Yi Huang,Zhi-Hua Xia,Wei-Qi Liu,Hong-Yan Chen,Dai-Bin Kuang
Rational modulation of interfacial electronic structure has been regarded as an appealing strategy to achieve effective charge separation and synergistic active-site cooperation in heterojunction photocatalysts, yet it remains a significant challenging. In this study, two-dimensional (2D) vinylene-linked conjugated covalent organic polymer (COP) functionalized with –F and –CN groups was designed through Knoevenagel condensation reaction. The influence of these groups on the interfacial properties and the photocatalytic performances of Cs 3 Sb 2 Br 9 /COP heterojunction were investigated systematically. Combined experimental and theoretical calculations revealed that introducing strong electron-withdrawing groups improves charge separation by inducing strong electron delocalization within the COP framework, enhances CO 2 adsorption and activation, and most importantly, significantly facilitates the interfacial growth of Cs 3 Sb 2 Br 9 nanocrystals. It was found that the strengthened interfacial interaction via Sb─N bonding effectively promoted a fast Z-scheme charge transfer and enabled effective spacial separation of photoelectron and holes, in contrast to the type II mechanism observed in the un-functionalized heterojunction. This enables effective multifunctional collaboration of Cs 3 Sb 2 Br 9 and FN-COP. Consequently, the optimized Cs 3 Sb 2 Br 9 /FN-COP heterojunction achieved a total electron rate of 135.42 µmol·g -1 ·h -1 for CO 2 reduction coupled with a benzaldehyde production rate of 179.73 µmol·g -1 ·h -1 , representing a 2.4 and 2.6-fold enhancement over the un-functionalized heterojunction. This work demonstrates a novel "molecular engineering–interface modulation–function cooperation" strategy to construct high-quality heterojunction precisely, providing valuable insights for the design of high-performance photocatalysts for next-generation energy conversion applications.
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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
Yang Zheng,Minghao Liu,Hui Wang,Rui Mao,Zuoqiao Zhu,Ningtao Zhang,Wei Su
Conventional carbon capture technologies often suffer from high energy demands during the desorption stage, whereas mineralization-assisted desorption provides a promising alternative to mitigate this challenge. This study investigates the mineralization-regeneration process of the NH 3 –CO 2 absorption system, with particular emphasis on the influence of CaCl 2 on desorption performance and the underlying reaction mechanisms. The work further examines the phase transition behavior and doping regulation of calcium carbonate, and introduces steel slag as a practical calcium source to evaluate its feasibility for large-scale applications.Results indicate that the desorption efficiency of the NH 3 –CO 2 absorption system is strongly dependent on the calcium dosage and reaction temperature. At a CO 2 /Ca 2+ molar ratio of 1.0:1.0, pH 9, and a reaction temperature of 25 °C, the desorption rate reached 93.55%. The purity of the mineralized calcium carbonate exceeded 99.84%. Moreover, in the presence of NH 3 and Mg 2+ , a distinct crystalline phase transition pathway was identified. Without Mg 2+ , the transformation proceeded along the aragonite → calcite pathway, whereas higher Mg 2+ concentrations (molar ratio of 0.4) promoted the formation of clustered calcite structures. The leachate reacted with the NH 3 –CO 2 absorption solution to achieve a desorption rate of 80.50%, producing calcium carbonate with 98.74% aragonite content, and demonstrating superior stability compared to the CaCl 2 -based system over multiple cycles. Collectively, these findings confirm the viability of indirect mineralization-assisted desorption in the NH 3 –CO 2 absorption system and highlight the potential of industrial solid wastes, particularly steel slag, as alternative calcium sources for carbon capture applications.
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