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| 1 | Catalytic conversion of lignocellulosic biomass into chemicals and fuels显示文摘In the search of alternative resources to make commodity chemicals and transportation fuels for a low carbon future,lignocellulosic biomass with over 180-billion-ton annual production rate has been identified as a promising feedstock.This review focuses on the state-of-the-art catalytic transformation of lignocellulosic biomass into value-added chemicals and fuels.Following a brief introduction on the structure,major resources and pretreatment methods of lignocellulosic biomass,the catalytic conversion of three main components,i.e.,cellulose,hemicellulose and lignin,into various compounds are comprehensively discussed.Either in separate steps or in one-pot,cellulose and hemicellulose are hydrolyzed into sugars and upgraded into oxygen-containing chemicals such as 5-HMF,furfural,polyols,and organic acids,or even nitrogen-containing chemicals such as amino acids.On the other hand,lignin is first depolymerized into phenols,catechols,guaiacols,aldehydes and ketones,and then further transformed into hydrocarbon fuels,bioplastic precursors and bioactive compounds.The review then introduces the transformations of whole biomass via catalytic gasification,catalytic pyrolysis,as well as emerging strategies.Finally,opportunities,challenges and prospective of woody biomass valorization are highlighted. | Weiping Deng Yunchao Feng Jie Fu Haiwei Guo Yong Guo Buxing Han Zhicheng Jiang Lingzhao Kong Changzhi Li Haichao Liu Phuc T.T.Nguyen Puning Ren Feng Wang Shuai Wang Yanqin Wang Ye Wang Sie Shing Wong Kai Yan Ning Yan Xiaofei Yang Yuanbao Zhang Zhanrong Zhang Xianhai Zeng Hui Zhou | 2023 | Green Energy & Environment2023，8，1： | 6 |
| 2 | A New Image Enhancement Algorithm for Low Il- lumination Environment 显示文摘 | ZHAO YANQIN WANG ZHENCHONG FU XIHUI | 2011 | International Conference on Computer Science and Automation Engineering CSAE2011，1，： | 1 |
| 3 | Hypoxia-induced miR-210 in epithelial ovarian cancer enhances cancercell viability via promoting proliferation and inhibiting apoptosis显示文摘 | Li’an Li Ke Huang Yanqin You Xiaoyu Fu Lingyun Hu Lei Song Yuanguang Meng | 2014 | International Journal of Oncology2014，，6： | 1 |
| 4 | Robust photo-assisted removal of NO at room temperature:Experimental and density functional theory calculation with optical carrier显示文摘Photo-assisted SCR(PSCR) offers a potential solution for removal of NO at room temperature. MnTiO_(x)as PSCR catalyst exhibits superior performance with NO removal of 100% at the room temperature. Electron paramagnetic resonance(EPR) analysis revealed the presence of numerous oxygen vacancies on MnTiO_(x). Optical carrier density functional theory(DFT) calculations showed that the threedimensional orbital hybridization of Mn and Ti is significantly enhanced under light irradiation. The MnTiO_(x)catalyst exhibited excellent electron–hole separation ability, which can adsorbe NH_(3)and dissociate to form NH_(2)fragments and H atoms. In-situ diffuse reflectance infrared fourier-transform spectroscopy(DRIFTS) indicated that the optical carrier enhanced NH_(3)adsorption on MnTiO_(x), which makes it possess excellent PSCR activity. This work provided an additional strategy to NO removal with PSCR catalysts and showed potential for use in photocatalysis. | Yanqin Li Junqi Tian Zhisong Liu Zhongqi Liu Dong Dong Fu Wang Wei Wang Minmin Liu Jianming Dan Yongsheng Li Feng Yu Bin Dai Yunbo Yu | 2023 | Green Energy & Environment2023，8，4： | 0 |
| 5 | Probiotic-based nanoparticles for targeted microbiota modulation and immune restoration in bacterial pneumonia显示文摘While conventional bacterial pneumonia mainly centralizes avoidance of bacterial colonization,it remains unclear how to restore the host immunity for hyperactive immunocompetent primary and immunocompromised secondary bacterial pneumonia.Here,probiotic-based nanoparticles of OASCLR were formed by coating chitosan,hyaluronic acid and ononin on living Lactobacillus rhamnosus.OASCLR nanoparticles could effectively kill various clinic common pathogens and antibacterial efficiency was>99.97%.Importantly,OASCLR could modulate lung microbiota,increasing the overall richness and diversity of microbiota by decreasing pathogens and increasing probiotic and commensal bacteria.Additionally,OASCLR could target inflammatory macrophages by the interaction of OASCLR with the macrophage binding site of CD 44 and alleviate overactive immune responses for hyperactive immunocompetent pneumonia.Surprisingly,OASCLR could break the state of the macrophage’s poor phagocytic ability by upregulating the expression of the extracellular matrix assembly,immune activation and fibroblast activation in immunocompromised pneumonia.The macrophage’s phagocytic ability was increased from 2.61% to 12.3%.Our work provides a potential strategy for hyperactive immunocompetent primary and immunocompromised secondary bacterial pneumonia. | Jieni Fu Xiangmei Liu Zhenduo Cui Yufeng Zheng Hui Jiang Yu Zhang Zhaoyang Li Yanqin Liang Shengli Zhu Paul K Chu Kelvin Wai Kwok Yeung Shuilin Wu | 2023 | National Science Review2023，10，2： | 0 |
| 6 | Two birds with one stone: Simultaneous fabrication of HfC nanowires and CNTs through efficient utilization of polymer-derived ceramics显示文摘Carbon nanotubes(CNTs) are fabricated in carbon cloth by ultilizing the waste gasses when fabricating hafnium carbide nanowires(HfC_(NWS)) through thermal pyrolysis of Hf-containing polymer precursor.The formed HfC_(NWS) are distributed uniformly on the surface of the carbon fibers in carbon/carbon(C/C) composites and display perfect single crystal appearance.The pyrolysis of the Hf-containing organic precursor provides hafnium and carbon source for the growth of HfC_(NWS).The released waste gasses containing CO,CH4and CO_(2)are the main carbon source for the growth of CNTs.Specifically,the flexural strength of HfC_(NWS) reinforced carbon/carbon(HfC_(NWS)-C/C) composites is enhanced by ~105% compared with pure C/C,and the CNTs/carbon cloth also displays improved electrochemical performance with respect to capacitor applications.The present study introduces a novel sustainable and eco-friendly process related to polymer-derived ceramics to form advanced ceramic nanocomposites and proposes a deep understanding of the growth mechanism of CNTs. | Yanqin Fu Yulei Zhang Xuemin Yin Liyuan Han Qiangang Fu Hejun Li Ralf Riedel | 2022 | Journal of Materials Science & Technology2022，，34： | 0 |
| 7 | Microstructure and evolution of hafnium carbide whiskers via polymer-derived ceramics:A novel formation mechanism显示文摘Polymer-derived ultra-high-temperature ceramic(UHTC)nanocomposites have attracted growing attention due to the increasing demands for advanced thermal structure components in aerospace.Herein,hafnium carbide(HfC)whiskers are successfully fabricated in carbon fiber preforms via the polymer-derived ceramic(PDC)method.A novel carbon nanotube(CNT)template growth mechanism combined with the PDC method is proposed in this work,which is different from the conventional vapor–liquid–solid(VLS)mechanism that is commonly used for polymer-derived nanostructured ceramics.The CNTs are synthesized and proved to be the templates for fabricating the HfC whiskers,which are generated by the released low-molecular-weight gas such as CO,CO_(2),and CH4 during the pyrolysis of a Hf-containing precursor.The formed products are composed of inner single crystal HfC whiskers that are measured to be several tens of micrometers in length and 100–200 nm in diameter and outer HfC/HfO_(2)particles.Our work not only proposes a new strategy to prepare the HfC whiskers,but also puts forward a new thinking of the efficient utilization of a UHTC polymer precursor. | Yanqin Fu Yulei Zhang Hao Yan Jinhua Li Xuemin Yin Jia Sun Qiangang Fu Ralf Riedel | 2023 | Journal of Advanced Ceramics2023，12，3： | 0 |
| 8 | (Hf_(0.5)Ta_(0.5))C ultra-high temperature ceramic solid solution nanowires显示文摘Ultra-high temperature ceramic(UHTC)nanowires are potential reinforcement materials due to it combines the perfect properties of bulk materials and unique geometric properties of one-dimensional(1D)nanostructures.Thus,developing 1D nanomaterials that have excellent morphology and structure retention in ultra-high temperature environments is of prime importance to bring their outstanding performance into full play.Herein,we report the novel solid solution((Hf_(0.5)Ta_(0.5))C)ceramic nanowires,which could not only maintain morphological and structural stability at 1900°C but also exhibit 1D nanostructures under oxyacetylene scouring and ablation at 2300°C.The morphology evolution of nanowires obeys the Rayleigh instability mechanism,and the internal structure and element distribution of nanowires remain unchanged even if the surface atoms are rearranged.The fascinating nanowires are demonstrated to have great potential as ideal reinforcement materials of composite materials and toughening phases of ceramics that are applied in ultra-high temperature environments,as well as excellent performance enhancement phases of functional materials.Our work may provide new insights into the development of ceramic nanowires and widen their applications. | Hui Chen Yulei Zhang Yanqin Fu Jiachen Meng Qing Miao Jianhua Zhang Hejun Li | 2023 | Journal of Materials Science & Technology2023，，16： | 0 |
| 9 | Single-source precursor derived high-entropy metal–carbide nanowires:Microstructure and growth evolution显示文摘In recent years,high-entropy metal carbides(HECs)have attracted significant attention due to their exceptional physical and chemical properties.The combination of excellent performance exhibited by bulk HEC ceramics and distinctive geometric characteristics has paved the way for the emergence of one-dimensional(1D)HECs as novel materials with unique development potential.Herein,we successfully fabricated novel(Ti_(0.2)Zr_(0.2)Hf_(0.2)Nb_(0.2)Ta_(0.2))C nanowires derived via Fe-assisted single-sourced precursor pyrolysis.Prior to the synthesis of the nanowires,the composition and microstructure of(Ti,Zr,Hf,Nb,Ta)-containing precursor(PHECs)were analyzed,and divinylbenzene(DVB)was used to accelerate the conversion process of the precursor and contribute to the formation of HECs,which also provided a partial carbon source for the nanowire growth.Additionally,multi-branched,single-branched,and single-branched bending nanowires were synthesized by adjusting the ratio of PHECs to DVB.The obtained single-branched(Ti_(0.2)Zr_(0.2)Hf_(0.2)Nb_(0.2)Ta_(0.2))C nanowires possessed smooth surfaces with an average diameter of 130–150 nm and a length of several tens of micrometers,which were a single-crystal structure and typically grew along the[11¯1]direction.Also,the growth of the(Ti_(0.2)Zr_(0.2)Hf_(0.2)Nb_(0.2)Ta_(0.2))C nanowires was in agreement with top-type vapor–liquid–solid mechanism.This work not only successfully achieved the fabrication of HEC nanowires by a catalyst-assisted polymer pyrolysis,but also provided a comprehensive analysis of the factors affecting their yield and morphology,highlighting the potential application of these attractive nano-materials. | Junhao Zhao Yulei Zhang Hui Chen Yanqin Fu Qing Miao Jiachen Meng Jiachen Li | 2023 | Journal of Advanced Ceramics2023，12，11： | 0 |
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