Bioresource Technology Reports
·
2023
·
IF 0
Shaoqing Wang,Gaixiu Yang,Juntao Yang,Zhen Wan,Zhihe Li,Weiming Yi
In this paper, the ternary molten salt (Li 2 CO 3 -Na 2 CO 3 -K 2 CO 3 ) was introduced into the lignin pyrolysis process for the co-production of monophenols and value-added carbon materials. The effect of lignin/molten salt ratios (i.e., 3:1, 1:1, and 1:3) on lignin pyrolysis behaviour was investigated herein. The pyrolytic products were characterized by gas chromatography–mass spectrometry, ultimate analyses, scanning electron microscopy, nitrogen adsorption analyses, and Raman analyses. Results showed that molten salt media can promote the conversion of bulky phenolic oligomers into mono-phenols by enhancing the cracking and deoxygenation reactions. P-type phenols (49.76 %) were produced when the lignin/molten salt mass ratio was 1:3. The porosity and aromaticity of biochar were regulated in-situ using molten salt. The possible catalytic effect of molten salt on lignin pyrolysis was proposed. This study provides a case reference for lignin waste resource utilization.
研究领域:
生物质转化
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能源化工
·
材料科学
✓ 已验证
DOI
JOURNAL OF ALLOYS AND COMPOUNDS
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2022
·
IF 6.371
Yan Zhang,Xuexian Wu,Guodong Fu,Xian-Zhu Fu,Jing-Li Luo
NiCo x P @ NiCo-LDH catalysts are prepared by phosphating NiCo nanosheets on NiCo-layered double hydroxide (LDH) with multi-layer heterostructure . The NiCo x P @ NiCo-LDH could undergo electrocatalytic hydrogen evolution from the methanol/water mixture and value-added formate co-production. During the electrocatalytic reactions, the phosphating NiCo x P nanosheets could greatly improve the electron transfer efficiency, and it has a synergistic effect with heterostructures to enhance the electrocatalytic performance. During the hydrogen evolution and methanol oxidation reactions, the potential is only 0.132 and 1.23 V when the current density reaches 10 mA cm −2 . Meanwhile, the NiCo x P @ NiCo-LDH symmetric two-electrode electrolyzer has a lower potential of only 1.43 V at a current density of 10 mA cm −2 and the Faraday efficiency of the production of formate and H 2 is nearly 100%. The electrocatalysts also display excellent stability during the water/methanol co-electrolysis.
研究领域:
材料科学
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电化学
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Jiyan Li,Meichen Liu,Min Qiao,Fei Wang,An Li
Solar-driven interfacial evaporation co-generation (SDIE-CG) technology can effectively solve problems such as low latent heat utilization in the evaporation process, which provides a reliable solution to the problem of hydropower shortage in remote areas. Herein, we report a tea residue microcrystalline cellulose (TMCC) aerogel (abbreviated as TCA), in which TMCC is regenerated by dissolution through the co-solvent method, and microcrystalline cellulose is rearranged by the directional slow freezing technique to get a TCA with a directional aligned pore structure, resulting in a good mechanical and salt-resistant property. Due to the internal doping of carbon black particles, the TCA has an average ultra-high absorbance of 97.46 %. The evaporation rate of TCA is up to 3.066 kg m −2 h −1 under 3 kW m −2 illuminations. The maximum output voltage of the TCA is 44.801 mV under 2 kW m −2 illuminations through the introduction of a suitable wind-assisted hydropower generation device. In addition, the TCA can effectively purify the wastewater containing traditional Chinese medicine, and the chemical oxygen demand (COD) value in wastewater shows a significant decrease after treatment. It is worth noting that TCA can maintain structural integrity and stable evaporation performance in saltwater under extreme pH conditions (2
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Nano Research
·
2021
·Vol. 15
·期 3
·1934-1941
·
IF 8.897
Ma Ge,Yang Na,Zhou Guofu,Wang Xin
The glycerol electro-oxidation reaction (GEOR) is a green and promising method for the glyceraldehyde production. In this work, Pd nanocrystals (Pd-NCs) modified ultrathin NiO nanoplates (NiO-uNPs) hybrids (Pd-NCs/NiO-uNPs) are successfully synthesized using successive cyanogel hydrolysis, chemical reduction, and calcination treatment methods. Various electrochemical measurements and physicochemical characterization results demonstrate that Pd-NCs/NiO-uNPs hybrids have excellent electrocatalytic performance for both GEOR and hydrogen evolution reaction (HER) in alkaline medium, which benefit from the large specific surface area, uniform distribution of Pd-NCs, and the modified electronic structure of Ni atoms. At Pd-NCs/NiO-uNPs hybrids, only 1.43 V is needed to obtain the current density of 100 mA·cm −2 for GEOR, much lower than that for oxygen evolution reaction (1.82 V). In addition, Pd-NCs/NiO-uNPs hybrids exhibit better HER performance than commercial Pd/C electrocatalyst. As a result, the constructed Pd-NCs/NiO-uNPs‖Pd-NCs/NiO-uNPs glycerol electrolyzer only requires 1.62 V electrolysis voltage to reach 10 mA·cm −2 current density, showing an energy-efficient and economy-competitive synthesis for the coproduction of glyceraldehyde and hydrogen.
研究领域:
材料科学
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电化学
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催化化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
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2014
·
IF 5.211
Yongmin Xie,Weizi Cai,Jie Xiao,Yubao Tang,Jiang Liu,Meilin Liu
Solid oxide fuel cells (SOFCs), with yttrium stabilized zirconia (YSZ) as electrolyte, composite of strontium-doped lanthanum manganate (LSM) and YSZ as cathode, and cermet of silver and gadolinium-doped ceria (GDC) as anode, are prepared and tested with 5wt% Fe-loaded activated carbon as fuel and ambient air as oxidant. It is found that electricity and CO gas can be cogenerated in the direct carbon SOFCs through the electrochemical oxidation of CO and the Boudouard reaction . The gas–electricity cogeneration performances are investigated by taking the operating time of the DC-SOFCs as a measure of rate decrease of the Boudouard reaction. Three single cells and a two-cell-stack are tested and characterized in terms of electrical power output , CO production rate, electrical conversion efficiency, and overall conversion efficiency. It turns out that a rapid rate of the Boudouard reaction is necessary for getting high electrical power and CO production. Taking the emitted CO as part of the power output, an overall efficiency of 76.5% for the single cell, and of 72.5% for the stack, is obtained.
研究领域:
能源科学
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材料科学
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CATALYSIS
·
2025
·
IF 17.7
Eryu Wang,Yi-Chun Chu,Wenjun Zhang,Yanping Wei,Chuanling Si,Regina Palkovits,Xin-Ping Wu,Zupeng Chen
The co-production of hydrogen and value-added biochemicals from lignocellulose utilizing solar energy has been regarded as one of the technologies most potentially able to alleviate the current energy crisis. Here, we demonstrate a cost-effective photoreforming strategy for lignocellulose valorization using a carbon nitride-supported platinum single-atom photocatalyst. An advanced H 2 evolution rate of 6.34 mmol mol Pt –1 h –1 is achieved over the optimal catalyst, which is around 4.6 and 30.5 times higher compared with the nanosized Pt counterpart and pristine carbon nitride, respectively. Meanwhile, the monosaccharides are oxidized to value-added lactic acid with >99% conversion and extraordinary selectivity up to 97%. The theoretical calculations show that with Pt incorporation, the photogenerated holes are predominantly localized on the metal sites while the photogenerated electrons are concentrated on C 3 N 4 , thus enhancing the effective separation of charge carriers. This work provides a promising avenue for the simultaneous production of green H 2 and bio-based chemicals by biomass photorefinery.
研究领域:
催化化学
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可再生能源
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太阳能转化
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生物质高值化利用
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绿色化学
✓ 已验证
产品关联
DOI
高影响因子
BIOCHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 3.8
Xinying Sun,Wei Xiao,Mengying Wu,Fuqiang Liu,Jiaxin Li,Lei Liu,Jing Wu,Keke Cheng,Jianan Zhang
Microbial fermentation technology has advanced rapidly in the field of green chemical production, showcasing broad application prospects. However, current techniques still face challenges such as low carbon utilization efficiency and excessive accumulation of by-products. Additionally, during the fermentation process, carbon sources are released in the form of CO₂, leading to significant carbon loss. In this study, Enterobacter cloacae CICC 10011 was metabolically engineered to achieve the co-production of 2,3-butanediol (2,3-BDO) and lactic acid, while reducing carbon dioxide emissions and improving carbon utilization. By knocking out key genes ( pflB and iclR ), the pathways for the formation of by-products such as formate, acetate, and ethanol were attenuated, thereby optimizing carbon flux toward the target products. The results showed that under optimal fermentation conditions (aeration rate of 0.4 vvm, pH 6.5, temperature 35 °C), the double-gene deletion strain ECΔpflBΔiclR achieved lactic acid and 2,3-BDO (mixture of stereoisomers) concentrations of 51.03 g/L and 10.44 g/L, respectively, with a total target product yield of 1.76 mol/mol. Compared to the wild-type strain, the production of by-products succinate, acetate, and ethanol was reduced by 70.04 %, 47.10 %, and 89.76 %, respectively. Additionally, CO₂ emissions were reduced by 68.92 %, and carbon conversion efficiency improved by 116.16 %. This strategy provides a novel approach for carbon emission reduction and the co-production of high-value chemicals in fermentation processes.
研究领域:
微生物学
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代谢工程
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工业生物技术
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发酵工程
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绿色化学
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生物制造
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碳代谢
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
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2021
·
IF 9.127
Xianda Sun,Yuxuan Lou,Ya-Ling He,Yinshi Li
The rapid footstep of hydrogen society drives people to pursue the reliable, energy-saving, and renewable hydrogen production patterns. Herein, an electricity-hydrogen co-produced Na-ion direct formate fuel cell (e-h 2 Na-DFFC) is proposed as a conceptual avenue to link the CO 2 utilization and H 2 society. Using the solar fuel-formate that can be readily synthetized from carbon dioxide, we experimentally demonstrate the capability of e-h 2 Na-DFFC for continuous co-production of electricity and hydrogen. A proof-of-concept e-h 2 Na-DFFC yields a peak power density as high as 168 mW cm −2 at 380 mA cm −2 associating with the hydrogen production rate reaching 2.9 mL min −1 cm −2 . More importantly, the approximate 100% purity and over 98.9% Faradic efficiency suggest the great potential of this electricity-hydrogen co-production device. In addition, we explore the scalability, stability and applicability of the e-h 2 Na-DFFC. The hydrogen that is produced from the e-h 2 Na-DFFC can be directly fed to hydrogen-oxygen fuel cell, which presents a peak power density of 546 mW cm −2 and a 35-h stable operation at room temperature . This proposed e-h 2 Na-DFFC provides a new pathway for renewable hydrogen production.
研究领域:
能源化学
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可再生能源技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 43
·2303272
·
IF 19
Si Yu Zheng,Jiahui Zhou,Mengjie Si,Shuaibing Wang,Fengbo Zhu,Ji Lin,Jimin Fu,Dong Zhang,Jintao Yang
Polyzwitterionic hydrogel is an emerging material for solar-driven water evaporation in saline environment due to its special anti-polyelectrolyte effect, which is a promising approach to co-generation of freshwater and electricity. However, the molecular impact on anti-polyelectrolyte effect remains unclear, let alone to optimize the zwitterionic structure to promote water evaporation efficiency in high-salinity brine. Herein, a molecularly engineered zwitterionic hydrogel is developed and the incorporated phenyl-methylene-imidazole motif greatly enhances the salt binding ability and strengthens anti-polyelectrolyte effect, leading to boosted hydration, improved salt tolerance, ultra-low evaporation enthalpy (almost half of traditional zwitterionic gel), and durable anti-microbial ability in brine. Besides, gradient solar-thermal network is penetrated to optimize water transport channel and heat confinement. The gel exhibits excellent evaporation rate of 3.17 kg m −2 h −1 in seawater, which is 1.6 times of that in water and such high efficiency could be maintained during 8 h continuous desalination, demonstrating outstanding salt tolerance. The high flux of ion stream can generate considerable voltage (321.3 mV) simultaneously. This work will bring new insights to the understanding of anti-polyelectrolyte effect at molecular level and promote materials design for saline water evaporation.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
·
2025
·
IF 6.3
Xiaoqing Xu,Yuhan Sun,Xiangze Yu,Rui Huang,Renjie Ji,Jiale Xu,Jianxiang Li,Ruifan Zhou,Qiang Zhang,Xiaoyu Yan
Background Compared to propane dehydrogenation (PDH) technology, propane oxidative dehydrogenation (ODHP) technology represents an effective approach to overcoming thermodynamic limitations. Supported boron oxide catalysts demonstrate promising potential by co-producing high-value ethylene while enhancing olefin selectivity. However, the critical challenge impeding the development of boron-based catalysts lies in the evaporation-induced loss of active components (boron oxide) under calcination process. Methods BO x −M ( M = SnO 2 , SiO 2 , MgO, CaO, MgSO 4 , CaSO 4 ) catalysts with 10 wt% boron trioxide loading were prepared by simple co-impregnation method using different supports. Significant findings Compared with other catalysts, the BO x -SnO 2 , BO x -CaSO 4 , and BO x −MgSO 4 systems featuring covalent oxygen-containing supports demonstrated superior catalytic performance, achieving propane conversions of 50.1 %, 49.4 %, and 48.9 %, respectively. Analysis revealed that the covalently bonded oxygen in the support forms covalent bridges with the active BO 3 species, thereby enhancing the stable interactions between the support and active components. This effectively mitigates the loss of active species during calcination and improves the catalytic activity. These findings provide a feasible pathway for developing high-performance catalytic systems for ODHP.
研究领域:
催化化学
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材料科学
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化学工程
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工业催化
·
能源化学
✓ 已验证
产品关联
DOI
高影响因子
DESALINATION
·
2024
·
IF 8.3
Jiacheng Hu,Jiangchao Huang,Yaxian Chen,Linan Xu,Bingquan Wu,Haotian Yue,Houqiang Ji,Haitao Li,Jian Jin
The solar-driven water-electricity cogeneration system (WECS) has emerged as a promising strategy to simultaneously address the global challenges of water scarcity and sustainable energy production. Despite its dramatic potential, current WECS technologies face issues related to complex processes and limited energy output, which hinder their practical application. In this study, we present an efficient WECS utilizing a spray-constructed carbon black/polyvinylidene fluoride loaded bamboo fiber paper (CB/PVDF@BFP) hybrid integrated with double-stacked thermoelectric generators (TEGs). The CB/PVDF@BFP composite features a Janus structure with hydrophobic and hydrophilic sides, facilitating efficient water evaporation and hydrovoltaic electricity generation. Under one sun irradiation, the composite achieves an evaporation rate of ~ 1.41 kg·m −2 ·h −1 with ~ 90 % photothermal efficiency and up to ~ 99.8 % decontamination efficiency for efficient water purification. Notably, our designed hybrid power generation module can reach up to ~ 1600.44 mW/m 2 under 1 sun, ~ 3-fold and ~ 4000-fold exceeding the previous only thermoelectric- and hydrovoltaic- based devices, respectively. This hybrid approach demonstrates enhanced energy recovery and utilization of solar energy, offering a promising solution to the water and energy crises through a single WECS.
研究领域:
能源技术
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环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Chunyi Ye,Yang Yang,Shujing Chen,Chunhua Liu,Xiao-Qing Sun,Danni Liu,Jiujun Zhang,Jing-Li Luo,Xian-Zhu Fu
Hydrogen (H 2 ) is a promising green alternative fuel; however, the widespread adoption of H 2 production technologies is limited by high energy consumption and significant carbon emissions. Here, we have developed a bipolar H 2 production electrolyzer that purifies wastewater and produces H 2 with ultra-low energy consumption by combining the formaldehyde 1-electron oxidation reaction (FOR-1) at the anode and the hydrogen evolution reaction (HER) at the cathode. The electroless Cu electrode exhibits high selectivity and activity for the 1-electron pathway of formaldehyde oxidation (i.e., FOR-1), enabling the anodic conversion of formaldehyde into valuable H 2 and formate. This facilitates the treatment of toxic formaldehyde waste while doubling H 2 production efficiency of the electrolyzer. Unlike conventional water electrolysis, the formaldehyde-water electrolyzer demonstrates a cell voltage reduction of 1.49 V at 10 mA/cm 2 . At 100 mA/cm 2 , the energy consumption is reduced to only 25 % of that in conventional systems, even with the use of a nickel foam cathode. Moreover, formaldehyde in wastewater is fully degraded within 50 min, highlighting its practical application potential.
研究领域:
电化学
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环境工程
·
材料科学
·
能源科学
·
工业催化
✓ 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）