JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Jing Fan,Shizhen Gao,Yanan Yang,Yuming Dong,Qi Qi,Fenhong Song,Jie Liu
As the world grapples with energy shortages and environmental challenges, photocatalytic CO 2 reduction has emerged as a game-changing solution in sustainable technology. By converting carbon dioxide into high-value hydrocarbon fuels, this innovative approach not only helps combat climate change but also paves the way for a cleaner, greener energy future. Developing high-performance, low-energy-consumption, and long-term stable photocatalysts remains a critical challenge in advancing sustainable technologies. In this study, the plate-like NiO supported ZnCdS nanoparticles with high stability is prepared by solvothermal method. Compared with ZnCdS and NiO, the photocatalytic properties of the composite materials are obviously improved. As a consequence, the 12NiO/ZnCdS composite exhibited CO evolution rates of 71.13 μmol·g -1 ·h -1 , 6.8 times higher than those of pristine ZnCdS. The selectivity toward CO reached 75%. Characterization results confirmed the successful synthesis of the catalyst, where the interfacial interaction between composite components formed a built-in electric field. This mechanism afforded more active sites, enhanced light absorption properties, and promoted carrier migration rate under photoexcitation. The efficient charge separation not only suppressed photo-corrosion but also enhanced the catalyst's reductive capacity for CO 2 reduction. This study establishes a novel design paradigm for engineering highly stable ZnCdS-based photocatalysts toward solar-driven CO 2 conversion, offering compelling inspiration for material innovation. Furthermore, the fundamental principles elucidated herein provide a valuable framework to guide future exploration in related energy-transduction technologies.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS CHEMISTRY
·
2011
·Vol. 21
·期 40
·16028-16034
·
IF 5.101
Jun Shi,Zhengzheng Zhang,Gefei Li,Shaokui Cao
Alginate/CaCO3 hybrid beads with pH- and thermal-responsive drug release properties were prepared under compressed CO2 using aliphatic poly(urethane-amine)s (PU) as the thermal-responsive component. Polyacrylic acid (PAA) was used as a crystal growth additive to control the structure of the hybrid beads. The hybrid beads were characterized by using scanning electron microscopy, X-ray powder diffraction and thermogravimetric analysis. The interaction between PAA and aliphatic PU contributed to the formation of alginate beads with a compact CaCO3 shell. Indomethacin release behaviour was found to be pH- and thermal-responsive. The release profiles were sustained with CaCO3 microparticles, indicating that the compact CaCO3 shell could hinder the permeability of the encapsulated drug and reduce the drug release effectively. The results suggest that the hybrid alginate beads can be used as “smart” polysaccharide materials for sustained dual-responsive drug delivery.
研究领域:
生物材料
·
药物递送系统
·
高分子科学
·
纳米医学
·
药剂学
·
生物化学
·
组织工程
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Yuwen Wang,Hao Li,Xuan Zhang,Yajuan Wei,Jiajun Wang,Jingbo Zhang
Modification of copper-based catalysts by heteroatom doping is an effective method to improve the electrocatalytic reduction of carbon dioxide to C 2+ . However, electrocatalytic reduction of carbon dioxide to ethanol has the problem of low selectivity and low Faradaic efficiency. Herein, bimetallic catalyst CuPd x was prepared by a simple one-pot method. The CuPd 0.1 achieves a high C 2+ Faradaic efficiency of 72.5%, in particular its electrocatalytic reduction of carbon dioxide to ethanol with a Faradaic efficiency of up to 63.0% in flow-cell. Besides, the partial current density of ethanol of CuPd 0.1 can reach up to 335 mA·cm −2 at 1.16 V (vs. RHE). Experiments and theories calculation revealed that the incorporation of Pd into Cu nanoparticles (NPs) triggers structural reconstruction, optimizing the distribution and exposure of active sites while introducing additional oxygen vacancies, which significantly enhances CO 2 adsorption. Furthermore, Pd doping regulates the adsorption energy barrier of H* and significantly reduces the energy barrier for C C coupling, steering the reaction pathway toward ethanol production. This synergistic effect substantially improves the selectivity for ethanol formation. Therefore, appropriate amount of Pd doping can improve the selectivity and catalytic activity of Cu NPs in electrocatalytic reduction of carbon dioxide to produce ethanol.
✓ 已验证
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Weiming Li,Can Jin,Huida Duan,Fangcao Li,Zhangxun Huang,Haodong Zhao,Xiaoman Yu,Yimei Xi,Xiangfeng Zeng,Yongfeng Jia,Chi Cheng
Dark fermentation for biohydrogen requires continuous alkaline dosing to control process acidification and expensive separation units to remove co-produced CO 2 , resulting in high operational costs and energy consumption. Here, we introduce wollastonite as a dual-function agent to simultaneously enhance H 2 yield and capture CO 2 . An optimal dosage of 10 g/L was identified, which shortened the lag phase from 23.13 to 12.38 h and increased the hydrogen yield from 158.11 ± 3.44 mL/g glucose-consumed to 210.75 ± 15.87 mL/g glucose-consumed. Mechanistically, wollastonite buffered the system pH, steering metabolic flux away from lactate towards acetate synthesis by enriching Clostridium and suppressing Lactobacillus . Wollastonite also enabled in-situ CO 2 sequestration by precipitating it as CaCO 3 . However, maximal CO 2 capture was achieved at a higher dosage (≥15 g/L), which passively reached the required neutral pH but compromised the hydrogen yield. This created a conflict with the optimal 10 g/L dosage for hydrogenesis. To prioritize the primary goal of green hydrogen production, a two-stage strategy was developed. This approach first uses the optimal 10 g/L dosage for maximal fermentation, followed by a post-fermentation pH adjustment from 6.54 ± 0.18 to 7.0 to induce carbonation. The optimized process successfully sequestered 0.49 ± 0.05 of CO 2 per liter of medium, thereby increasing the H 2 content in the final biogas to a high of 58.2 ± 1.1%. Finally, a life cycle assessment (LCA) validated the environmental superiority of this strategy, confirming a significantly lower Global Warming Potential (GWP) for the entire process. This work thus provides a proof-of-concept for a pragmatic strategy that co-optimizes hydrogen production and carbon capture in a single, sustainable biorefinery process.
✓ 已验证
DOI
高影响因子
Processes
·
2023
·Vol. 11
·期 4
·1075
·
IF 3.5
Zhaochen Huang,Guoqiang Huang
Usually, the ion implantation gases used in semiconductor production are required to be extremely high in purity. Due to the presence of trace CO2in electronic special gas BF3, the quality of the material is significantly affected, which makes it crucial to impose control on CO2content. Unlike a series of blank adsorbents reported in other studies, the zinc-loaded adsorbents prepared in this study are intended for the adsorption of CO2from CO2/BF3. Firstly, the materials were characterized by XRD, BET, SEM-EDS and TG-DSC analysis, etc., and the breakthrough curves of the adsorbents as obtained under different preparation conditions were investigated at 20 °C and 200 kPa. The results show that the adsorption performance reached the optimal level when the activation temperature was 450 °C and a 13X molecular sieve was impregnated by 0.15 mol/L Zn(NO3)2. Moreover, compared with the Zn-13X, the breakthrough time was reduced to 69% and 44% in two adsorption cycles, respectively. Finally, FTIR was used to reveal the adsorption mechanism of the carbonates produced by CO2adsorption. It was found that the adsorption performance was affected by the irreversible reduction in the number of active sites due to the continuous formation of polydentate carbonate during adsorption and regeneration.Keywords:CO2adsorption;13X molecular sieve;carbonate species
✓ 已验证
产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2023
·
IF 3.7
Ernest Pahuyo Delmo,Yian Wang,Shangqian Zhu,Tiehuai Li,Yinuo Wang,Juhee Jang,Qinglan Zhao,Alexander Perez Roxas,Gabriel Sikukuu Nambafu,Zhengtang Luo,Lu-Tao Weng,Minhua Shao
The C2 product formation mechanism in the electrochemical reduction reaction of CO2 (CO2RR) is still poorly understood. This work aims to analyze the copper-catalyzed electroreduction of aqueous glyoxal to understand its role as a potential reaction intermediate during CO2RR. Multiple reaction pathways are observed during glyoxal reduction, including its electroreduction to ethanol and ethylene glycol, disproportionation to glycolate and formate, and further coupling toward the formation of C4 compounds and graphitic carbon. A significantly high ethylene glycol to ethanol ratio indicates that glyoxal may not be the main intermediate toward ethanol production in CO2RR on Cu, contradicting previous hypotheses. Density functional theory calculations show that the hydration of aldehyde functional groups can shift the ethylene glycol vs ethanol selectivity, in which the former is preferred when the carbonyl groups remain unhydrated. A CO2-to-glycolate pathway is also possible as a consequence of the base-catalyzed internal Cannizzaro disproportionation of glyoxal. Finally, C–C coupling during glyoxal reduction may open up a CO2RR pathway toward C4 products such as tetroses and 1,4-butanediol that have not been previously observed in electrochemical CO2RR. The formation of graphitic carbon also suggests that the carbon deposits usually observed during CO2RR may originate from glyoxal-derived C–C coupling. Our findings offer valuable insights onto the glyoxal pathway of CO2RR and the various multicarbon products that result from the further conversion of glyoxal.
✓ 已验证
产品关联
DOI
高影响因子
CARBOHYDRATE POLYMERS
·
2023
·
IF 11.2
Ziteng Liu,Peng Wei,Ying Qi,Xueli Huang,Yahong Xie
The injection of CO 2 into oil reservoirs to enhance oil recovery (EOR) has become a widely accepted and effective technical method, which, however, remains subject to the gas channeling caused by the reservoir fractures. Herein, this work developed a novel plugging gel combining excellent mechanical properties, fatigue resistance, elastic and self-healing properties for the CO 2 shutoff purpose. This gel consisting of grafted nanocellulose and polymer network was synthesized via a free-radical polymerization, and reinforced by using Fe 3+ to cross-link the two networks. The as-prepared PAA-TOCNF-Fe 3+ gel has a stress of 1.03 MPa and a high strain of 1491 %, and self-heals to its original 98 % in stress and 96 % in strain after rupture, respectively. The introduce of TOCNF/Fe 3+ improves the excellent energy dissipation and self-healing via the synergy effect of dynamical coordination bonds and hydrogen bonds . Further, the PAA-TOCNF-Fe 3+ gel is both flexible and high-strength in plugging the multi-round CO 2 injection, during which the CO 2 breakthrough pressure is above 9.9 MPa/m, the plugging efficiency exceeds 96 %, and the self-healing rate is larger than 90 %. Given that above, this gel shows a great potential to plug the high-pressure CO 2 flow, which could offer a new method for CO 2 -EOR and carbon storage.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2023
·
IF 5.2
Ning Sun,Mingwei Gao,Jiawei Liu,Guang Zhao,Fei Ding,Qing You,Caili Dai
With the increasing demand for oil and gas resources, deep tight oil and gas reservoirs have gradually become the focus of global oil and gas exploration and development. Hydraulic fracturing technology based on water-base fracturing fluid plays a more and more important role in improving the recovery of tight oil reservoirs. Under the background of global CO 2 emission reduction, a CO 2 -responsive clean fracturing fluid with controllable gelling/gel breaking at high temperatures was constructed in this paper. The system was not only friendly to the reservoir and environment, but also overcame the shortcomings of the traditional clean fracturing fluid with undesirable temperature resistance. The viscosity characteristics and viscoelastic behavior of temperature-resistant clean fracturing fluid were investigated through high-temperature rheology experiments. The interaction between fluid and rock was investigated through the core flow experiment. The results showed that the clean fracturing fluid had the characteristics of good CO 2 responsiveness, excellent shear resistance at high temperatures, high drag reduction, satisfactory gel breaking performance, low filtration and low core damage. The complex three-dimensional network structure formed by the intertwined micelles and vesicles improves the temperature resistance of the clean fracturing fluid. It is expected that the fluid can not only be used to improve oil recovery in tight oil reservoirs, but also be used to solve the leakage problem in CO 2 storage underground.
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2023
·Vol. 14
·期 1
·1-11
·
IF 16.6
Zhang Jin,Guo Chenxi,Fang Susu,Zhao Xiaotong,Li Le,Jiang Haoyang,Liu Zhaoyang,Fan Ziqi,Xu Weigao,Xiao Jianping,Zhong Miao
Electrochemical CO 2 reduction (CO 2 R) to ethylene and ethanol enables the long-term storage of renewable electricity in valuable multi-carbon (C 2+ ) chemicals. However, carbon–carbon (C–C) coupling, the rate-determining step in CO 2 R to C 2+ conversion, has low efficiency and poor stability, especially in acid conditions. Here we find that, through alloying strategies, neighbouring binary sites enable asymmetric CO binding energies to promote CO 2 -to-C 2+ electroreduction beyond the scaling-relation-determined activity limits on single-metal surfaces. We fabricate experimentally a series of Zn incorporated Cu catalysts that show increased asymmetric CO* binding and surface CO* coverage for fast C–C coupling and the consequent hydrogenation under electrochemical reduction conditions. Further optimization of the reaction environment at nanointerfaces suppresses hydrogen evolution and improves CO 2 utilization under acidic conditions. We achieve, as a result, a high 31 ± 2% single-pass CO 2 -to-C 2+ yield in a mild-acid pH 4 electrolyte with >80% single-pass CO 2 utilization efficiency. In a single CO 2 R flow cell electrolyzer, we realize a combined performance of 91 ± 2% C 2+ Faradaic efficiency with notable 73 ± 2% ethylene Faradaic efficiency, 31 ± 2% full-cell C 2+ energy efficiency, and 24 ± 1% single-pass CO 2 conversion at a commercially relevant current density of 150 mA cm −2 over 150 h.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ChemElectroChem
·
2023
·Vol. 10
·期 7
·e202201147
·
IF 4
Xinzuo Fang,Sheng Lei,Zhiwei Feng,Junfei Ou
Graphical Enhanced conductivity : Al−PMOF−Cu−PPy are obtained through metallization of the porphyrin linkers followed by polymerization of pyrrole, which exhibit enhanced photocatalytic activity for CO 2 reduction. DFT calculations reveals the electron interaction between the polypyrrole and the MOFs can narrow the band gap, promote the electron transition and thus enhance the photocatalytic activity. Photocatalytic CO 2 reduction to valuable fuels is highly desirable to alleviate global warming and energy crisis. Herein, a stable aluminum-porphyrin metal-organic frameworks (MOFs) named Al−PMOF, with wide spectral response, is selected as platforms for the construction of efficient photocatalyst to convert CO 2 into CO. To enhance the activity of pristine Al−PMOF, highly active reaction sites are introduced through metallization of the porphyrin linkers with Cu 2+ . Furthermore, the polymerization of pyrrole in the channel of MOFs is also performed to improve the electron conductivity and narrow the band gap. The polypyrrole offers the conductive network to transfer the light-generated electrons and thus enhances the efficient charge separation. The calculated electronic density of states based on the density functional theory (DFT) further prove the electron interaction between the polypyrrole and the MOFs, which benefit the enhancement of photocatalytic performance of Al−PMOF.
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2023
·
IF 8.4
Yichao Tong,Changlei Qin,Xianqing Zhu,Zongze Lv,Xin Huang,Jie Chen
Renewable energy and electric vehicles are well-acknowledged strategies for reducing CO2 emissions, and their development relies heavily on the core of energy storage systems using lithium-ion batteries. However, recycling of lithium-ion batteries is far from mature, and massive abandonment of spent batteries would lead to severe environmental pollution. Meanwhile, the shortage of lithium resources brought about by the rapid development of lithium-ion batteries, especially LiFePO4, significantly drives up the preparation cost of Li4SiO4 as a promise sorbent and greatly limits its application as a CO2 capture scheme. Hence, a strategy is urgently needed to alleviate the lithium resource contradiction between energy storage and CO2 mitigation. Herein, we report a novel concept in recycling spent LiFePO4 battery to prepare high-efficiency and low-cost Li4SiO4 sorbents for CO2 capture. The obtained Li4SiO4 sorbents demonstrate very stable CO2 capacities of 0.27–0.28 g/g in a typical test up to 80 cycles, a leading level in CO2 capture, while the cost is only 1/6 of the conventional preparation process. It suggests that the concept of recycling spent LiFePO4 for CO2 capture has broad implications on resource utilization of energy waste and the mitigation of CO2 emissions.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2023
·
IF 6.2
Xu Tang,Wenjing Shen,Dongyi Li,Binrong Li,Yemei Wang,Xianghai Song,Zhi Zhu,Pengwei Huo
The novel Co-doping combined with mesoporous g-C 3 N 4 -based photocatalyst was constructed, and the Co-CN showed impressive photocatalytic reduction CO 2 activity. Employing the DFT computation, we discussed the possible Co doping sites on g-C 3 N 4 framework, as well as the effects of band gaps, optical properties , and various densities of state (DOS) on photocatalytic activity. The adsorption energy calculation proved that the substitution and interstitial doping Co atoms in g-C 3 N 4 crystal unit cell was the stable configuration. The coexistence substitution and substitution the monolayer g-C 3 N 4 showed serious deformation. It indicated that the introduction of Co atoms leads g-C 3 N 4 molecular orbital redistribution and Co tends to occupy the conduction band, due to its weak electronegativity. Moreover, the DFT and experiment results pointed out that the doped-Co narrowed g-C 3 N 4 bandgap and increased light absorption from 450 to 800 nm, the improved charge carrier separation efficiency was originated from Co atom the unfilled 4 f and the empty 5d orbital act as electron capturing center. This research indicates the availability of transition metal g-C 3 N 4 with conducive photocatalytic activity.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）