ACS Sustainable Chemistry & Engineering
·
2021
·
IF 8.198
Haifeng Jiang,Haipeng Liu,Baolin Liu,Yu Zhang,Shu Li,Jie Chen
This work studied the effect of cellulose–lignin interactions under potassium formate (HCOOK) and nickel formate (Ni(HCOO)2) on behavior and product distributions. The results indicated that the presence of HCOOK affected the whole thermal decomposition process, while the effect of Ni(HCOO)2 was mainly manifested before 339 °C. The interaction under the action of HCOOK favored the generation of carbonyl compounds, and the catalytic pyrolysis with Ni(HCOO)2 was better for formating phenols. The high peak intensities of CO and CH4 were achieved by adding nickel formate and potassium formate, respectively. It was obviously different from noncatalytic pyrolysis. The evolution of a char structure further revealed that different formate salts had different effects on the interactions. The statistical method according to the distribution of the liquid component confirmed that HCOOK had the strongest effect for reducing the cellulose–lignin interactions.
研究领域:
生物质能
·
催化化学
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Linhua Mi,Bin Chen,Xin Xu,Siting Cai,Yajun He,Yang Wei,Yaming Jiang,Chaoyang Zheng,Shenghong Zhong,Wenbin Hu,Yan Yu
Modulating the morphology of metal-organic frameworks (MOFs) has been identified as an effective strategy for enhancing the electrocatalytic performance of CO 2 reduction reactions (CO 2 RR). In this study, CAU-17 MOFs ([Bi(BTC)(H 2 O)]·2 H 2 O·MeOH) were prepared via a sonication-assisted method at room temperature, which is considered a simpler technique compared to the conventional hydrothermal method . Additionally, the morphology of CAU-17 MOFs was further regulated by incorporating a rare-earth metal (La), resulting in the observation of two distinct structures, i.e. CAU-17 hexagonal prism (CAU-17-HP) and CAU-17 layer (CAU-17-Layer). Compared to CAU-17-HP, CAU-17-Layer exhibits an excellent selectivity towards formate with the maximum Faradaic efficiency of 95.5% at − 1.1 V RHE in an H-cell. Subsequently, the limited catalytic activity of CAU-17-Layer was boosted by anchoring nano CeO 2 onto its surfaces (CeO 2 @CAU-17-Layer). The as-prepared composite catalyst demonstrated outstanding performance in the conversion of CO 2 to formate, with a current density surpassing − 100 mA cm -2 at potentials more negative than − 1.0 V RHE and reaching − 200 mA cm -2 at − 1.5 V RHE in a flow cell. This study demonstrates the significant potential of morphology-engineered and rare-earth metals composited MOFs in facilitating highly efficient reduction of CO 2 .
研究领域:
材料科学
·
电化学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Jing Jiang,Xinwei Li,Kaiguang Yang,Wangyin Wang,Xupeng Cao,Can Li
Formate, which can be produced from CO 2 with green energy, has received increasing attentions as a carbon source for bioconversion. Microalgae have the native advantages of use captured light energy to facilitate the formate assimilation. However, the low efficient natural conversion and inhibition to the electron transfer chain obstacle its applications’ development. Here, using green microalga C. reinhardtii 21gr as the model, an approach to improve formate-based biomass and protein production was raised and verified through isotope labeling experiments, and the pathway of formate which presented in photosynthetic organisms was related to amino acids. By the enhancement of chloroplast glyceraldehyde-3-phosphate dehydrogenase (cGAPDH) expression, together with the adaptive laboratory evolution (ALE) over regular lethal dose of formate, the yields of the biomass and proteins were promoted with 34 % and 55 % to the wild type, respectively. Indicated by the photosynthetic activity variations, it was proposed that the balance of cellular energy and reduction power is necessary for microalgae to achieve high productivity with formate. Further investigated by proteomics, 6-phosphogluconate dehydrogenase (6-PGD) was identified as the key enzyme to formate and nitrogen’s co-assimilation.
研究领域:
植物学
·
生物化学
·
遗传学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Weimin Cao,Zeru Shen,Jiayi Li,Jingyu Li,Yiying Zhao,Qingran Zhang,Qiang Liu
Electrochemical oxidation of glycerol into value-added chemicals represents a sustainable approach for not only valorizing biomass resources but also improving the energy efficiency of electrolysis by replacing the kinetically sluggish oxidation of water at the anode. Here, we present a nickel (oxy)hydroxide supported cobalt nanoneedle arrays catalyst (CoNA-NiOH/NF-2) for effective oxidation of glycerol. The loaded Co(OH) 2 forms more oxygen defects, increases the active sites, and enhances the performance of glycerol oxidation. The CoNA-NiOH/NF-2 catalyst significantly reduces energy consumption by achieving a current density of 10 mA cm −2 at a low voltage of 1.22 V vs. RHE, and 100 mA cm −2 at 1.42 V vs. RHE, which is approximately 240 mV lower than oxygen evolution reaction (OER). Additionally, the Faraday efficiency of formate generation reached 98 %. The growth of renewable energy sources will greatly benefit from this strategy, which calls for replacing anodic OER with biomass oxidation.
研究领域:
化学工程
·
可再生能源
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
·
2020
·
IF 4.419
Woo Sung Yum,Jung-Il Suh,Do Hoon Kim,Jae Eun Oh
Recently, the combined use of calcium oxide (CaO) and calcium formate (Ca(HCOO) 2 ) has been proposed as an alternative activator for ground granulated blast furnace slag (GGBFS) (referred to as CaO-Ca(HCOO) 2 -activated GGBFS system). However, this clinker-free binder system produces calcium aluminate hydrate (C 2 AH 8 ), generally leading to the degradation of cementitious binder systems by its conversion to other phases. Thus, in this study, attempts to remove C 2 AH 8 from this system without losing the strength are suggested by the use of two additives (i.e., calcium sulfate (CaSO 4 ) and calcium nitrate (Ca(NO 3 ) 2 ), respectively). Results revealed that the above-mentioned additives completely remove C 2 AH 8 in the initial curing stage via its conversion to ettringite or NO 3 - and NO 2 -AFm, respectively. In addition, the additives reduced the extent of the total shrinkage and the standard deviation of strength results of triplicate samples. However, CaSO 4 exerted a beneficial effect on the strength, while Ca(NO 3 ) 2 exerted a marginal or detrimental effect on the strength. Therefore, this study suggested a new mixture form of an activator, comprising CaO , Ca(HCOO) 2 , and CaSO 4 , to activate GGBFS for maintaining strength without the conversion issue of C 2 AH 8 .
研究领域:
建筑材料学
·
材料科学
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2025
·
IF 21.1
Huawang Zhao,Yuxin Xie,Bihong Lv,Guohua Jing,Yongdan Li
The CO 2 electrochemical reduction reactions (CO 2 ER) to produce high-value formate are crucial for closing the anthropogenic CO 2 cycle. Modulating the adsorption energy between *OCHO and Bi atoms in Bi-based catalysts could enhance both the activity and selectivity for formate formation. Here, a Bi/BiOBr nanosheet with highly dispersed Bi single atoms in intercalations was synthesized through NaBH 4 treatment of BiOBr, which retained the intercalated Bi atoms after electrolysis (Bi/BiOBr-D). The intercalated Bi atoms optimize the Bi-6p band center (0.016 eV) and charge distribution in Bi/BiOBr-D, enhancing the coupling between the O-2p orbitals of *OCHO and the Bi-6p orbitals as well as the electron transfer dynamics between Bi and the *OCHO intermediate, which improves the stability of the *OCHO intermediate during CO 2 ER. Further studies demonstrate that enhanced *OCHO adsorption reduces the Gibbs free energy barrier for the CO 2 →*OCHO process and suppressing the formation of the *H intermediate. Those advantages lead to high selectivity (FE of 96.83 %) in H-type cell, and excellent activity (j HCOO- of 815 mA/cm²) and productivity (15.22 mmol/h·cm²) in flow cell for formate production over Bi/BiOBr-D sample.
研究领域:
材料科学
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电化学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
·
2019
·
IF 2.298
Zisheng Zhang,Xianyi Wang,Jun Ma,Renzhou Bian,Hong Sui,Lin He,Xingang Li
The solubility of calcium formate (form α) in four different binary solvent mixtures (methanol + water, ethanol + water, n-propanol + water, and acetone + water) from 283.15 to 323.15 K was measured by a static equilibrium method under atmospheric pressure. Results indicated that the solubility increased with the increasing temperature and water content in binary mixed solvents. The modified Apelblat equation, the combined nearly ideal binary solvent/Redlich-Kister equation, and the Jouyban–Acree equation were applied for the correlation of experimental solubility, among which the modified Apelblat equation was found to be the best fitting model for the crystallization of calcium formate (form α). This experimental data can be a fundamental guide to choose a suitable crystallization process for calcium formate in industry.
研究领域:
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
WATER AIR AND SOIL POLLUTION
·
2017
·Vol. 228
·期 11
·1-15
·
IF 1.702
Zhao Chuanliang,Zheng Huaili,Sun Yongjun,Liu Bingzhi,Zhou Yuhao,Liu Yongzhi,Zheng Xinyu
Modified natural biosorbents have been the research hot spot in wastewater treatment field. Natural polyphenol compounds, tannins with many functional groups can be easily modified to produce biosorbents. This work presents an environmentally friendly tannin-based dithiocarbamate (TDTC) with enhanced function of adsorption. TDTC was successfully synthesized by a two-step method involving Mannich reaction and esterification. The structure and synthetic mechanisms of TDTC were discussed through instrumental analysis. The BET-specific surface area analysis results showed that TDTC exhibited a mesoporous structure with an increased surface area. Parameters affecting adsorption such as initial pH, adsorbent dosage, contact time, initial concentration, and temperature were systematically examined. Results showed that the maximum adsorption capacity toward Ni(II) of TDTC was 112.49 mg/g. In addition, TDTC exhibited a fast adsorption rate and 80% of the Ni(II) was removed within just 20 min. The adsorption kinetics and adsorption isotherm were well described by the pseudo-second-order model and Langmuir model, respectively. Moreover, TDTC could be easily regenerated without obvious loss of adsorption capability after five adsorption–desorption cycles. All these results indicate that TDTC is an ideal candidate for the efficient removal of Ni(II).
Removal of Ni(II) from water using environmental-friendly tannin-based dithiocarbamate biosorbents.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Jin Li,Zhujun Chen,Xin Li,Bingshuang Li,Pengxuan Wu,Xiaoxi Huang
Indium sulfide-based electrocatalysts often suffer from the reduction of In3+ to In0 species in the electrocatalytic CO2 reduction reaction (CO2RR), and this dynamic transformation leads to undesired hydrogen evolution reaction. Promoting the stability of high-valent In3+ species under operating conditions is a challenging but important task for maintaining their excellent electrocatalytic activity. In this work, In2S3 electrocatalysts with controllable crystallinity are synthesized by a hydrothermal reaction at a tunable temperature. The low-crystalline In2S3-1 exhibits more abundant defective and amorphous/crystalline interface structures compared with the high-crystalline ones, thus endowing the low-crystalline In2S3-1 with a higher formate faradaic efficiency (FEformate) of 91.6% at −1.45 V vs RHE in the H-type cell compared with the high-crystalline In2S3-3 (FEformate = 79.3%). This improved electrocatalytic activity can be attributed to its abundant defect structures and amorphous/crystalline interface structures with robustly high-valent In3+ species under the operating conditions. In situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy results reveal the *OCHO reaction pathway. Density functional theory (DFT) calculations indicate that defective structures, such as sulfur vacancies, play an important role in lowering the energy barrier for the key intermediate *OCHO formation. This work provides important insight into defect engineering to promote CO2RR.
研究领域:
材料科学
·
电化学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Energy Chemistry
·
2024
·
IF 14
Haocheng Xiong,Donghuan Wu,Haonan Li,Andrew Li,Qikun Hu,Siyao Song,Bingjun Xu,Qi Lu
Renewable energy-driven bicarbonate conversion to valuable chemicals presents an attractive strategy for mitigating CO 2 emissions, as bicarbonate can be efficiently generated from the capture of atmospheric CO 2 using alkaline solutions with reactive absorption. In this work, we present a CO 2 -mediated bicarbonate conversion to pure formate using a cation exchange membrane-based electrolyzer with a 25 cm 2 electrode area. Our electrolysis achieved selectivities exceeding 75% for formate at a total current of 2.5 A, achieving formate concentrations up to 1.2 M and yields as high as 95% over extended periods. The techno-economic assessment confirmed the economic viability of the process, highlighting the potential for bicarbonate electrolysis as a sustainable method for producing valuable chemicals.
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Jia’nan Zhang,Zizhen Liu,Yihan Wang,Bo Yu
l-Homoserine is proven to be a promising precursor for the synthesis of l-phosphinothricin, which is a broad-spectrum herbicide with low toxicity. To enhance the sustainability of the process, the utilization of nonfood carbon sources for l-homoserine production is highly sought-after. Acetate, which can be captured from C1 gases, has the potential to become the most abundant feedstock for biomanufacturing. In this study, we systematically engineered the Escherichia coli strain to generate l-homoserine from acetate. The production of l-homoserine from acetate was initially achieved by deleting branch pathways, activating the glyoxylate shunt, and enhancing the synthetic pathway. The strain’s tolerance and acetate assimilation capabilities were strengthened through adaptive laboratory evolution. Reducing the flux toward gluconeogenesis further facilitated the production of l-homoserine. Finally, the engineered strain produced 15.96 g/L l-homoserine solely from CO2-derived acetate and formate in a 5 L fermentor via a fed-batch process. This study provides insights into the development of a low-carbon bioeconomy for the herbicide industry.
研究领域:
生物工程
·
可持续发展
·
合成生物学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2024
·
IF 4
Wenteng Qiao,Yushen Liu,Kun Yang,Luliang Wang,Quanwen Liu,Shuyang Sun,Dongnan Zhu
Sodium benzoate is a commonly used food additive , but its excessive use or residue can pose potential risks to human health. In this study, we developed a novel method using TetraBromo Fluorescein Disodium Carbon Quantum Dots (TBrFD CQDs) for the rapid and accurate detection of sodium benzoate. The feasibility, sensitivity, selectivity, and stability of the method were evaluated. The results demonstrated the feasibility of the proposed method, with a linear correlation between sodium benzoate concentration and fluorescence intensity . The detection limit was calculated to be 0.094 mg L −1 . The method exhibited good selectivity and stability, and its applicability was validated in real samples, including two beverages, with recovery rates ranging from 88.78% to 99.02%. This method offers a promising approach for the rapid and on-site detection of sodium benzoate in food, contributing to food safety and consumer health.
研究领域:
食品安全
·
分析化学
✓ 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）