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Journal of Energy Chemistry 2025年第1期100卷 26-38页

作者： Xiaodong yang Haochen Shen Xiaoming Xiao Zhichao Li Qi Zhou Wei yang Bin Jiang Yongli Sun Luhong Zhang zhenhua yan School of Chemical Engineering and Technology Tianjin University Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Nankai University

This study presents a novel method to fabricate metal-decorated,sulfur-doped layered double hydroxides （M/SLDH） through spontaneous redox and sulfurization *** developed Ag/SLDH and Pt/SLDH catalysts with abundant heterogeneous interfaces and hierarchical nanostructures demonstrated outstanding oxygen evolution reaction （OER） and hydrogen evolution reaction （HER） performance,achieving low overpotentials of 212 and 35 mV at 10 mA cm-2in 1 M KOH,*** both anode and cathode in water splitting,they required only 1.47 V to reach 10 mA cm-2and exhibited high structural robustness,maintaining stability at 1000 mA cm-2for 300 ***-situ Raman analysis revealed that the synergistic effects of metal nanoparticles and S doping significantly promote the transformation into the S-Co1-xFexOOH layer,which serves as the active phase for water ***,ultraviolet photoelectron spectroscopy （UPS） and density functional theory （DFT） analyses indicated that incorporating metal nanoparticles and S doping increase electron density near the Fermi level and reduce reaction energy barriers,thus enhancing intrinsic OER and HER *** study provides a scalable strategy for synthesizing high-performance electrocatalysts for water splitting,with promising potential for broader applications.

关键词： Ultraviolet photoelectron spectroscopy

Deliberate design of MOF-based pre-catalyst rationalizing the structural reconstruction toward efficient oxygen evolution reaction

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Science China Chemistry 2025年

作者： Yunhui Chen Meng Tian Zhongqi Zhang Guangzhao Wang yan Guo Jing Wu Dawei Qi zhenhua yan Xiangyu Liu Xi Liu State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering College of Chemistry and Chemical EngineeringNingxia University Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing School of Electronic Information Engineering Yangtze Normal University Frontiers Science Center for New Organic Matter Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) State Key Laboratory of Advanced Chemical Power Sources College of Chemistry Nankai University School of Chemistry and Chemical Engineering In-situ Center for Physical Sciences Frontiers Science Center for Transformative Molecules Shanghai Jiao Tong University

Metal-organic frameworks （MOFs）,that have emerged as promising electrocatalysts in oxygen evolution reaction （OER）,usually undergo structural reconstruction to form metal hydroxides as active ***,it remains a great challenge to design and synthesize ideal MOF-based pre-catalysts for properly cognizing and utilizing the reconstruction process toward efficient OER ***,the well-defined MOF-808 is post-modified by 2-hydroxyphosphonoacetic acid （HPAA） to form a micro-adsorber that enables to capture of metal ions ***3+and Ni2+ions are synergistically anchored into the microadsorber,developing a Fe/Ni-containing pre-catalyst that can be dynamically electrooxidized to be an active and stable dual-site electrocatalyst denoted by R-MOF-HPAA@FeNi with abundant metal *** a result,R-MOF-HPAA@FeNi exhibits an excellent OER performance with a low overpotential of 272 mV and Tafel slope of 35.9 m V dec-1,as well as long-term stability over 300 h at 10 m A *** and theoretical calculations suggest the resulting catalyst mainly follows a lattice oxygen mechanism （LOM） of dual-metal-site mechanism （DMSM）.Owing to the chelating role of HPAA,the post-synthesized MOF-HPAA behaves as a trap to uniformly and firmly adhere Fe3+and Ni2+ions,leading to a functionalized MOF-based pre-catalyst which can be structurally evolved into atomic level-distributed OER electrocatalysts.

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Syntheses,challenges and modifications of single-crystal cathodes for lithium-ion battery

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Journal of Energy Chemistry 2021年第12期30卷 217-229,I0004页

作者： Xinyue Zhang Yudong Zhang Jiuding Liu zhenhua yan Jun Chen Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage Center.College of ChemistryNankai University.Tianjin 300071 China

Single-crystal cathodes(SCCs)are promising substitute materials for polycrystal cathodes(PCCs)in lithium-ion batteries(LIBs),because of their unique ordered structure,excellent cycling stability and high safety *** materials with layered(LiCoO_(2),LiNi_xCo_yMnzO_(2),LiNi_xCo_yAl_(2)O_(2))and spinel structure(LiMn_(2)O_(4),LiNi_(0.5)Mn_(1.5)O_(4))show a relatively stable electrochemical performance,but still lack of sufficient attention in research *** this review,we begin with the definition,structural features and electrochemical advantages of *** SCCs synthesis methods and the thermodynamic growth mechanism of SCCs with oriented facet exposure are summarized in the following *** we introduce the problems and challenges of SCCs faced and the corresponding modification ***,the industrialization progress of SCCs is brifly *** intend to tease out the difficulties and advances of SCCs to provide insights for future development of high-performance SCCs for practical LIBs.

关键词： Lithium-ion batteries Single crystal Cathode Syntheses Modifications

Biodegradation of 2-ethylhexyl-4-methoxycinnamate in river sediments and its impact on microbial communities

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Journal of Environmental Sciences 2021年第6期33卷 307-316页

作者： Peng Zhang Guanghua Lu Jianchao Liu zhenhua yan Huike Dong Ranran Zhou Key Laboratory of Integrated Regulation and Resources Development of Shallow Lakes of Ministry of Education College of EnvironmentHohai UniversityNanjing 210098China College of Hydraulic and Civil Engineering XiZang Agriculture and Animal Husbandry CollegeLinzhi 860000China

Numerous studies have evaluated the toxicity and endocrine disrupting properties of organic UV filters for aquatic organisms,but little is known about their biodegradation in river sediments and their impact on *** have set up the sterile and microbiological systems in the laboratory,adding 2-ethylhexyl-4-methoxycinnamate(EHMC),one of organic UV filters included in the list of high yield chemicals,at concentrations of 2,20 and 200μg/L,and characterized the microbial community composition and diversity in *** of EHMC degradation within 30 days revealed that the half-life in the microbial system(3.49 days)was much shorter than that in the sterile system(7.55 days).Two potential degradation products,4-mercaptobenzoic acid and 3-methoxyphenol were identified in the microbial ***,high-throughput 16s and 18s rRNA gene sequencing showed that Proteobacteria dominated the sediment bacterial assemblages followed by Chloroflexi,Acidobacteria,Bacteroidetes and Nitrospirae;Eukaryota_uncultured fungus dominated the sediment fungal *** analysis demonstrated that two bacterium genera(Anaerolineaceae_uncultured and Burkholderiaceae_uncultured)were significantly correlated with the biodegradation of *** results illustrate the biodegradability of EHMC in river sediments and its potential impact on microbial communities,which can provide useful information for eliminating the pollution of organic UV filters in natural river systems and assessing their potential ecological risks.

关键词： 2-ethylhexyl-4-methoxycinnamate(EHMC) River sediment Microbial community composition Degradation

High-performance solid-state lithium metal batteries achieved by interface modification

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Journal of Energy Chemistry 2023年第4期79卷 357-364页

作者： Lei Zhai Kai yang Fuyi Jiang Wenbao Liu zhenhua yan Jianchao Sun School of Environment and Material Engineering Yantai UniversityYantai 264005ShandongChina College of Chemistry and Material Science Shandong Agriculture UniversityTaian 271018ShandongChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China

Garnet-structured ceramic electrolyte Li_(6.75)La_(3)Zr_(1.75)Ta_(0.25)O_(12)(LLZTO)attracts significant consideration in solid-state Li metal batteries due to its wide electrochemical window and favorable compatibility with Li ***,the deployment of LLZTO is severely hampered by poor contact between LLZTO and Li metal *** this paper,an ultra-thin Al-Si interface buffer layer(10 nm)is constructed on LLZTO by a magnetron sputtering method,which allows superior wetting of Li onto the LLZTO surface due to the alloying reaction between the Al-Si layer and Li *** resulting Li/Al-Si coated LLZTO(ASL)/Li symmetrical cell delivers an interfacial resistance of 15.0Ωcm^(-2),which is much lower than that of 1140.3Ωcm^(-2)for the bare LLZTO symmetrical ***,the Li/ASL/Li symmetrical cells exhibit stable plating/striping performance(800 h)with small voltage hysteresis at 1.0 mA cm^(-2).Besides,the full cell with LiFePO_(4)cathode reveals a high capacity of 124.1 mA h g^(-1)after 600 cycles at 0.5C with a lowcapacity decay of 0.032%per *** believe this work will facilitate the development of solid-state rechargeable batteries.

关键词： Garnet electrolyte Solid-state batteries Lithium metal anode Interfacial resistance Aluminum-silicon layer

Strong interaction and confine effect of manganese oxide-cobalt embedded in self-templated nitrogen-doped carbon enable ultra-stable zinc-air batteries

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Progress in Natural Science:Materials International 2023年第3期33卷 328-334页

作者： Zhongce Hu Taoyi Shen Xiang Chen zhenhua yan Tiandi Pan Houyong Yu College of Textile Science and Engineering (International Institute of Silk) Zhejiang Sci-Tech University Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry Nankai University

Developing efficient bifunctional oxygen electrocatalysts with high stability is of great significance for the implementation of rechargeable Zn–air batteries. Herein, MOC-NC bifunctional electrocatalyst with active Mn O–Co components embedded in the N-doped carbon sphere is prepared by facile hydrothermal conversion and post-pyrolysis process. The strong interaction between Mn O and Co, and confine effect induced by the microstructure endow the fabricated MOC-NC composite with modified electronic configuration, improved conductivity, and significantly reinforced stability. Consequently, the MOC-NC electrocatalyst exhibits good activity and ultrahigh stability for oxygen electrocatalysis. Moreover, when the catalyst was applied to the cathode electrode for the zinc-air battery, it shows excellent performance(specific capacity of 718 Wh kgZn-1, power density of 152.3mW cm-2) and extraordinary long-term stability(after 200 h of charge and discharge cycling, the round-trip efficiency still maintains at 44%). The present work demonstrates a strategy for synthesizing ultrastable bifunctional non-precious metal electrocatalysts for oxygen electrocatalysis.

关键词： Zinc-air batteries Electrocatalyst Bifunctional Hybrid

Nanostructured NiMoO_4 as active electrocatalyst for oxygen evolution

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Chinese Chemical Letters 2019年第2期30卷 319-323页

作者： Xinyue Zhao Jing Meng zhenhua yan Fangyi Cheng Jun Chen Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry Nankai University

It is desirable to exploit cost-effective and earth-abundant catalysts for the oxygen evolution reaction (OER) in developing electrochemical energy conversion and storage technologies. Here we report a facile hydrothermal synthesis of NiMo04 nanorods as active and stable OER catalyst in alkaline condition. The prepared NiMoO_4 nanorods exhibit a considerably low overpotential of 340 mV at the current density of10 mA/cm^2 and a low Tafel slope of 45.6 mV/dec, which is comparable to the benchmark ***, the performance of NiMoO_4 significantly surpasses binary NiO and MoO_3 oxides due to enhanced charge transfer and promoted formation of catalytically active Ni^(3+) species. The results highlight the importance of designing ternary oxides in oxygen electrocatalysis.

关键词： Electrocatalysis Nickel Molybdenum Oxide Oxygen evolution

N,N-dimethylformamide tailors solvent effect to boost Zn anode reversibility in aqueous electrolyte

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National Science Review 2022年第10期9卷 147-157页

作者： Yilin Ma Qiu Zhang Luojia Liu Yixin Li Haixia Li zhenhua yan Jun Chen Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center (RECAST) College of Chemistry Nankai University

Rechargeable aqueous Zn batteries are considered as promising energy-storage devices because of their high capacity,environmental friendliness and low ***,the hydrogen evolution reaction and growth of dendritic Zn in common aqueous electrolytes severely restrict the application of Zn ***,we develop a simple strategy to suppress side reactions and boost the reversibility of the Zn *** introducing 30%（volume fractions） N,N-dimethylformamide（DMF） to the 2 M Zn（CF3SO3）2-H2O electrolyte（ZHD30）,the preferential hydrogen-bonding effect between DMF and H2O effectively reduces the water activity and hinders deprotonation of the *** ZHD30 electrolyte improves the Zn plating/stripping coulombic efficiency from～95.3% to～99.4% and enhances the cycles from 65 to *** Zn-polyaniline full battery employing the ZHD30 ele ctrolyte can operate over a wide temperature range from-40℃ to+25℃ and deliver capacities of 161.6,127.4 and 65.8 mAh g-1at 25,-20 and-40℃,*** work provides insights into the role of tuning solvent effects in designing low-cost and effective aqueous electrolytes.

关键词： aqueous electrolyte Zn reversibility hydrogen bond solvent effect rechargeable Zn battery

Rapid low-temperature synthesis of perovskite/carbon nanocomposites as superior electrocatalysts for oxygen reduction in Zn-air batteries

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Nano Research 2018年第6期11卷 3282-3293页

作者： zhenhua yan Hongming Sun Xiang Chen Xiaorui Fu Chengcheng Chen Fangyi Cheng Jun Chen Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) College of Chemistry Nankai University Tianjin 300071 China Collaborative Innovation Center of Chemical Science and Engineering Nankai University Tianjin 30007 I China

The conventional ceramic synthesis of perovskite oxides involves extended high-temperature annealing in air and is unfavorable to the in situ hybridization of the conductive agent, thus resulting in large particle sizes, low surface area and limited electrochemical activities. Here we report a rapid gel auto-combustion approach for the synthesis of a perovskite/carbon hybrid at a low temperature of 180℃. The energy-saving synthetic strategy allows the formation of small and homogeneously dispersed LaxMnO3±6/C nanocomposites. Remarkably, the synthesized La0.99MnO3.03/C nanocomposite exhibits comparable oxygen reduction reaction （ORR） activity （with onset and peak potentials of 0.97 and 0.88 V, respectively） to the benchmark Pt/C due to the facilitated charge transfer, optimal eg electron filling of Mn, and coupled C-O-Mn bonding. Furthermore, the nanocomposite efficiently catalyzes a Zn-air battery that delivers a peak power density of 430 mW·cm^-2, an energy density of 837 W·h·kgzn^-1 and 340 h stability at a current rate of 10 mA·cm^-2.

关键词： perovskite oxide nanocomposite electrocatalysis oxygen reduction Zn-air batteries

Genome-wide association mapping of stress-tolerance traits in cotton

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The Crop Journal 2019年第1期7卷 77-88页

作者： Heng Sun Minghui Meng zhenhua yan Zhongxu Lin Xinhui Nie Xiyan yang National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Key Laboratory of Oasis Ecology Agricultural of Xinjiang Bingtuan Agricultural College Shihezi University

Environmental stresses severely impair cotton production worldwide. To identify the genetic basis of, and molecular markers associated with, environmental stresses such as salt, cold and Verticillium wilt, association mapping of salt-, cold-, and disease-tolerance traits was performed in a population of 503 upland cotton accessions using 179 polymorphic SSR markers and 11,975 array-derived SNP markers. Salt and cold tolerance was evaluated via the relative germination rate(RGR) of the seeds under seven and four environments, respectively. The disease index of Verticillium wilt was investigated for two years in the field in Xinjiang. These three traits showed large variation across environments. A genome-wide association study revealed that 31, 19, and 15 SSR markers were associated with RGR-Salt(the relative germination rates of seeds under salt stress),RGR-Cold(the relative germination rates of seeds under cold stress), and DIV(the disease index of Verticillium wilt), respectively. Six SNPs in seven environments and two SNPs in BLUP(best linear unbiased prediction) results were associated with RGR-Salt, and the phenotypic variance explained ranged from 3.96 to 5.00%. Two SNPs(i02237 Gh, i02243 Gh)on D01 were concluded to be stable genetic loci associated with RGR-Salt. A total of 223 genes were found in a candidate gene interval(D01, 37771–1942912). Of these four genes,GhPIP3A, GhSAG29, GhTZF4, and GhTZF4a, showed expression changes in sensitive and tolerant genotype accessions under salt stress, and were assigned as candidate genes associated with RGR-Salt. This study revealed the genetic basis of stress resistance in upland cotton and will facilitate stress-resistance breeding in cotton.

关键词： Upland cotton Stress Relative germination rate SSR SNP Candidate gene