ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Yuqing Tian,Wei Wei,Zhouquan Sun,Yunhao Hu,Kerui Li,Qinghong Zhang,Yaogang Li,Chengyi Hou,Hongzhi Wang
Using body heat as a sustainable energy source through the thermoelectric effect to power wearable electronics is promising. Ionic thermoelectric materials based on the thermogalvanic effect can generate stable voltage under low-temperature differences, but their low thermopower and poor contact interface with electrodes hinder practical use. In this study, strong chaotropic salts are utilized to modify the solvation shells of ions, increasing the thermopower of the p-type redox couple [Fe(CN)₆] 3 ⁻/[Fe(CN)₆]⁴⁻ to 3.98 mV K −1 . Additionally, Arrhenius acid is introduced to inhibit the deprotonation of the n-type redox couple Fe 3 ⁺/Fe 2 ⁺, enhancing the thermopower to −2.29 mV K −1 . Liquid metal electrodes, with excellent deformability and hydrogen bonding with hydrogel surfaces, effectively reduce the resistance of thermocells. Thus, a pair of p-n thermocells achieve a voltage output of 118 mV and a current density of 4.5 A m − 2 , with a maximum power density of 0.11 W m − 2 (Δ T = 5 K). A wearable device integrated with 18 p-n pairs can generate a voltage of 2.2 V from body heat and continuously power portable electronic devices. This work demonstrates the promising potential of wearable self-powered devices for practical daily applications.
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Weijin Wang,Weiyu Zhang,Qihua Sun,Ning Tian,Jun Sun,Zhaofeng Wu
The development of a green and non-polluting gas-sensitive material for N 2 H 4 detection at room temperature (RT) remains a challenge. Guided by the concept of green and sustainable development, we have prepared a novel porous carbon material (LSC) for high-performance N 2 H 4 detection at RT. This was achieved through a green and environmentally friendly one-step carbonization method, using Laetiporus sulphureus (LS), a tree pathogen abundant in amino acids and proteins, as a precursor for nitrogen self-doping. Through optimization of the carbonization temperature, the LSC-600 sensor achieves highly sensitive and selective detection of N 2 H 4 at RT, with a response of 32.11k%–500 ppm N 2 H 4 and exhibits a faster response (∼20.1 s) and recovery (∼1.5 s). The LSC-600 sensor shows good long-term stability, with a response to N 2 H 4 varying less than 8.4 % after 30 days. Moreover, its gas-sensitive mechanism is discussed in detail. This research not only presents a green and sustainable approach for the valuable utilization of biomass waste but also furnishes a valuable reference for the development of high-performance sensors. In addition, it expands the scope of bio-manufacturing and opens up new avenues for research and development in materials science.
✓ 已验证
产品关联
DOI
高影响因子
Communications Biology
·
2025
·Vol. 8
·期 1
·1-10
·
IF 5.1
Lin Huaying,Lv Yongxin,Zhang Yu
Medium-chain alkanes have strong ecological impacts on marine ecosystems due to their persistence, toxicity, and ability to travel long distances. Microbial degradation is the dominant and ultimate removal process for n-alkanes in the deep ocean, where high hydrostatic pressure (HHP) regulates microbial activity. To gain insight into the impact of hydrostatic pressure (HP) on n-alkane degradation, we applied the deep-ocean experimental simulation to culture Alcanivorax xenomutans A28, a novel piezotolerant bacterium strain from trench sediment, with n-C 16 as the sole carbon source under different HPs (0.1, 40, and 80 MPa). Activity analysis demonstrated that HHP stimulated the n-C 16 complete mineralization ratio. Transcriptomic and metabolomic analyses showed that HHP induced the intracellular oxidative stress and accelerated the tricarboxylic acid (TCA) cycle. These results indicate a shift of n-alkanes biodegradation pattern regulated by HP, elucidating the fate and ecological risk of n-alkanes in the deep ocean.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Meiling Wu,Yang Tao,Yuwei Liu,Sanying Hou,Tiyang Xiao,Qing Fu,Guowen Peng,Lang Shi
In this study, Fe/N co-doped graphene-like honeycomb porous carbon (Fe-NC)was produced and used for the activating PMS to degrade TC. The Fe-NC catalyst has shown high activity in the TC degradation by activated PMS, with an efficiency of up to 94 % in 30 min. while the blank catalyst without N and Fe doping exhibited the lowest performance with 47.3 % TC degradation. Moreover, other operational factors of Fe-NC catalysts were also investigated to evaluate its catalytic activity. The burst experiments and electron paramagnetic resonance (EPR) experiments demonstrated that free radical paths (O 2 ·- ) and non-free radical paths ( 1 O 2 ) coexist inside the Fe-NC/PMS system. The experiment results and degradation mechanism analysis revealed that N species(Pyridine N, Graphite N,Fe-N x ) and iron species (Fe0) were possible to be the active species of catalysts. Furthermore, Fe-NC/PMS system was investigated for possible pathway of TC degradation by liquid mass spectrometry (LC-MS), and the presence of intermediates was analyzed for toxicity magnitude by ECOSAR software.
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Chemistry
·
2025
·
IF 6.7
Junyuan Zhang,Jingjing Chen,Yulu Jing,Xiaolong Xu,Changyu Liu,Jianbo Jia
A Fe, Co, N doping hierarchical carbon composite was prepared using stepwise pyrolysis. The prepared composite exhibited excellent oxygen reduction reaction (ORR) activity with a half-wave potential (E 1/2 ) of 0.88 V (vs. reversible hydrogen electrode, RHE), which was higher than the commercial 20 wt% Pt/C (E 1/2 = 0.83 V). The oxygen evolution reaction (OER) activity of the prepared catalysts with the potential at 10 mA cm −2 (E j10 ) of 1.543 V was lower than that of the commercial RuO 2 (E j10 = 1.586 V). The corresponding turnover frequency (TOF) of FeCo@NC-3N-900 was 0.076 O 2 s −1 at E 1/2 (TOF of Pt/C was 0.057 O 2 s −1 at E 1/2 ) in ORR and 0.056 O 2 s −1 at E j10 (TOF of RuO 2 was 0.001 O 2 s −1 at E j10 ) in OER. As a result, the performance of the Zn-air battery assembled with FeCo@NC-3N-900 was better than that of the commercial Pt/C + RuO 2 . At the same time, Co was found that can elevate the ORR activity of the prepared composites by improving the mass diffusion, and FeCo alloy elevate the OER activity by improving the electron transfer. This work provided an efficient method for the preparation of ORR/OER bifunctional catalyst.
✓ 已验证
产品关联
DOI
高影响因子
Carbon Letters
·
2024
·
IF 5.5
Chen Jinghong,Xie Huan,Lin Yuyin,Tan Zhenxing,Zheng Mingchen,Yuan Yong,Zhou Lihua
Ibuprofen (IBU), a common pharmaceutical and personal care product (PPCP), is a pervasive water pollutant with adverse ecological and human health effects after transformation and accumulation. In this study, we synthesized Fe, N-doped carbon quantum dots (Fe, N-CQDs) using pig blood and FeCl 3 as a precursor via a one-step hydrothermal method. TEM, XRD, XPS, and UV–Vis were used to characterize the physical and chemical properties of Fe, N-CQDs. We investigated the feasibility of Fe, N-CQDs in activating peroxymonosulfate (PMS) for IBU degradation under visible light. The experimental results revealed that Fe in Fe, N-CQDs predominantly formed a stable complex through Fe–N and Fe-OH, with a high degree of graphitization and a sp 2 -hybridized graphitic phase conjugate structure. The Fe, N-CQDs/Light/PMS system exhibited strong activity, degrading over 87% of IBU, maintaining a wide pH range (3–10) adaptability. Notably, Fe, N-CQDs acted as visible-light catalysts, promoting Fe 3+ /Fe 2+ cycling and PMS activation, generating both free radicals (SO 4 •– , ·OH) and non-radicals ( 1 O 2 , h + ) to effectively degrade IBU. This study presents an innovative approach for the sustainable utilization of pig blood as a biomass precursor to synthesize Fe- and N-doped carbon materials. This study provides a new approach for the sustainable and value-added utilization of natural wastes and biomass precursors of Fe- and N-doped carbon materials, which can be used to treat pollutants in water while treating discarded pig blood. Graphical abstract
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Yong Xu,Shi Chen,Mingfu Ye,Mingyue Wang,Wenhai Wang,Konglin Wu
Levodopa (LDA) is a principal medication for the treatment of Parkinson’s disease, with its therapeutic efficacy and potential side effects being closely associated with administered dosages. Consequently, the development of sophisticated LDA detection methods is of significant importance. Herein, we present the successful fabrication of an innovative electrochemical sensor utilizing Fe/Fe 3 C nanoparticles supported on activated N-doped carbon spheres (Fe/Fe 3 C-ANC), which makes full use of the large specific area of ANC to accommodate more dispersive Fe/Fe 3 C NPs that exhibits outstanding electrocatalytic activity for LDA oxidation. The experimental findings demonstrate that Fe/Fe 3 C-ANC sensor can deliver wide linear response ranges (1–40 µM) with an impressively low limit of detection of 0.22 µM, surpassing the performance of most previously reported electrochemical sensors. Additionally, the good selectivity of Fe/Fe 3 C-ANC sensor was also proved through measuring a series of LDA structural analogues and potential interfering substances. Furthermore, its excellent selectivity was confirmed through the analysis of LDA structural analogs and potential interferents. The practical utility of the sensor was evaluated by detecting LDA in commercial tablets, spiked human serum and spiked artificial cerebrospinal fluid samples.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Shuyan Lin,Yongxiang Wang,Xinyu Jing,Haonan Shen,Yide Hao,Zongyu Zhang,Jiangshan Gao,Yan He
The agglomeration phenomenon of metals in transition metal-based carbon catalysts has been one of the major reasons hindering their replacement of commercial Pt/C. Its self-aggregation phenomenon greatly limits the number of active sites and reactivity, which affects the catalytic performance. To overcome this issue, this work prepared a high N-doped carbon structure catalyst coated with high-dispersion FeCo/Fe 3 C nanoparticles. This was achieved by utilizing the advantages of the Prussian blue analogs (PBA) metal framework structure to suppress the self-aggregation of metals, thereby achieving high dispersion. Additionally, the introduction of melamine compensated for the nitrogen loss caused by the carbonization of PBA, thus increasing the nitrogen doping content. The experimental results show that when the calcination temperature is 850 °C and the mass ratio of melamine to FeCo PBA is 5, the half-wave potential (E 1/2 ) of the FeCo@NC catalyst prepared can reach 0.857 V, and the current intensity of FeCo@NC catalyst can maintain 97.12 % during 40,000 s stability test, which is much higher than that of commercial Pt/C. Moreover, the prepared FeCoNC@-850-5 and commercial Pt/C catalysts were used as cathode catalysts for Zn-air batteries (ZAB), and FeCoNC@-850-5 had higher open-circuit voltage (OCV), power density, and specific capacity. These findings demonstrate that the catalyst possesses excellent catalytic activity and promising application prospects, providing a new perspective for the design of efficient oxygen reduction catalysts based on the coupling of bimetallic alloys and N-doped carbon materials.
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Junhao Cui,Zhiyang Zhao,Yongqi Ren,Bailong Chen,Chase Rheinlander,Antonio Xavier Moore,Longzhi Li
Microwave-assisted hydrogenolysis of lignin is an emerging alternative to conventional depolymerization capable of converting lignin into aromatic compounds. Activated carbon (AC) supported Fe component have been shown to be cost-effective for this process, but its cycle stability needs to be improved due to Fe agglomeration. Herein, a strategy of nitrogen doping to promote stability was developed, which utilized melamine (C 3 H 6 N 6 ) as nitrogen source to prepare the catalyst of N-doped AC supported Fe (Fe/N-AC). The catalyst characterization indicated that the N-doped AC acted as anchor points for Fe components, avoiding catalyst deactivation from the source. Fe/N-AC presented an excellent cycle stability, remaining a phenolic compound selectivity of 93.3 % after five cycles and a decrease of only 4.79 % (compared to the first). The DFT calculation results revealed that Fe/N-AC tended to break C Ar -OCH 3 during the hydrogenolysis of guaiacol, with an energy barrier of 0.877 eV. This work proposes a simple and effective strategy to improve the stability of lignin hydrogenolysis catalysts, providing important references for the high-valued utilization of lignin.
✓ 已验证
产品关联
DOI
高影响因子
Korean Journal of Materials Research
·
2024
·Vol. 34
·期 9
·409-421
·
IF 0.3
Kai Chen,Zeda Meng,Yao Liu,Yilei Sun,Yuan Liang,Won-Chun Oh
Among the products of the electrocatalytic reduction of carbon dioxide (CO2RR), CO is currently the most valuable product for industrial applications. However, poor stability is a significant obstacle to CO2RR. Therefore, we synthesized a series of bimetallic organic framework materials containing different ratios of tungsten to copper using a hydrothermal method and used them as precursors. The precursors were then subjected to pyrolysis at 800 ℃ under argon gas, and the M-N bimetallic sites were formed after 2 h. Loose porous structures favorable for electrocatalytic reactions were finally obtained. The material could operate at lower reduction potentials than existing catalysts and obtained higher Faraday efficiencies than comparable catalysts. Of these, the current density of WCu-C/N (W:Cu = 3:1) could be stabilized at 7.9 mA·cm-2 and the FE of CO reached 94 % at a hydrogen electrode potential of -0.6 V (V vs. RHE). The novel materials made with a two-step process helped to improve the stability and selectivity of the electrocatalytic reduction of CO2 to CO, which will help to promote the commercial application of this technology.
✓ 已验证
产品关联
DOI
高影响因子
CARBON
·
2024
·
IF 10.5
Guangkai Jin,Yuhong Cui,Kaige Yan,Shenghua Xue,Shujuan Liu,Qian Ye,Feng Zhou,Weimin Liu
To address energy wastage caused by friction, it is urgently needed to develop multi-functionalized nano-additives based on traditional lubricant additives. Herein, nitrogen/phosphorus co-doped carbon dots (N,P-CDs) are successfully prepared via one step hydrothermal method using benzopyrrole as raw materials and diethylenetriaminepenta as N, P-dopant. The prepared N,P-CDs demonstrate good lubrication effects when used as water-based additives. Compared with pure H 2 O, the coefficient of friction (COF) significantly decreases from 0.448 to 0.144, accompanied by a notable reduction in wear volume from 3.84 × 10 5 μm 3 to 2.31 × 10 5 μm 3 . This is attributed to the formulation of the robust hydration layer on the CDs surface, as well as the tribochemical protective film generated on the friction pair surface. In addition, the introduction of N,P-CDs effectively inhibits bacterial growth during long-term storage of H 2 O as lubricant. With small additions (100 μg/mL), the anti-bacterial rates against Escherichia coli and Staphylococcus aureus could reach 94.9 % and 99.5 %, respectively.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Hongwei Wang,Tsung-Cheng Yang,Hao Zheng,Zeyi Jiang,Chia-Min Yang,Nien-Chu Lai
Transition metal-based nanoparticles (NPs) are emerging as potential alternatives to platinum for catalyzing the oxygen reduction reaction (ORR) in zinc-air batteries (ZAB). However, the simultaneous coexistence of single-atom moieties in the preparation of NPs is inevitable, and the structural complexity of catalysts poses a great challenge to identifying the true active site. Herein, by employing in situ and ex situ XAS analysis, we demonstrate the coexistence of single-atom moieties and iron phosphide NPs in the N, P co-doped porous carbon (in short, Fe-N 4 -Fe 2 P NPs/NPC), and identify that ORR predominantly proceeds via the atomic-dispersed Fe-N 4 sites, while the presence of Fe 2 P NPs exerts an inhibitory effect by decreasing the site utilization and impeding mass transfer of reactants. The single-atom catalyst Fe-N 4 /NPC displays a half-wave potential of 0.873 V, surpassing both Fe-N 4 -Fe 2 P NPs/NPC (0.858 V) and commercial Pt/C (0.842 V) in alkaline condition. In addition, the ZAB based on Fe-N 4 /NPC achieves a peak power density of 140.3 mW cm −2 , outperforming that of Pt/C-based ZAB (91.8 mW cm −2 ) and exhibits excellent long-term stability. This study provides insight into the identification of true active sites of supported ORR catalysts and offers an approach for developing highly efficient, nonprecious metal-based catalysts for high-energy–density metal-air batteries.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）