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| 1 | One step NaBH_4 reduction of Pt-Ru-Ni catalysts on different types of carbon supports for direct ethanol fuel cells : Synthe sis and characte rization显示文摘The ternary catalyst Pt75Ru5Ni20 was conducted on various types of carbon supports including functionalized Vulcan XC-72R(f-CB),functionalized multi-walled carbon nanotubes(f-MWCNT),and mesoporous carbon(PC-Zn-succinic)by sodium borohydride chemical reduction method to improve the ethanol electrooxidation reaction(EOR)for direct ethanol fuel cell(DEFC).It was found that the particle size of the metals on f-MWCNT was 5.20 nm with good particle dispersion.The alloy formation of ternary catalyst was confirmed by XRD and more clearly described by SEM element mapping,which was relevant to the efficiency of the catalysts.Moreover,the mechanism of ethanol electrooxidation reaction based on the surface reaction was more understanding.The activity and stability for ethanol electrooxidation reaction(EOR)were investigated using cyclic voltammetry and chronoamperometry,respectively.The highest activity and stability for EOR were observed from Pt75Ru5Ni20/f-MWCNT due to a good metal-carbon interaction.Ru and Ni presented in Pt-Ru-Ni alloy improved the activity and stability of ternary catalysts for EOR.Moreover,the reduction of Pt content in ternary catalyst led to the catalyst cost deduction in DEFC. | Napha Sudachom Chompunuch Warakulwit Chaiwat Prapainainar Thongthai Witoon Paweena Prapainainar | 2017 | 燃料化学学报2017,45,5: | 4 |
| 2 | Linking molecular deadwood-inhabiting fungal diversity and community dynamics to ecosystem functions and processes in Central European forests显示文摘Fungi play vital roles in the decomposition of deadwood due to their secretion of various enzymes that break down plant cell-wall complexes.The compositions of woodinhabiting fungal(WIF)communities change over the course of the decomposition process as the remaining mass of wood decreases and both abiotic and biotic conditions of the wood significantly change.It is currently not resolved which substrate-related factors govern these changes in WIF communities and whether such changes influence the deadwood decomposition rate.Here we report a study on fungal richness and community structure in deadwood of Norway spruce and European beech in temperate forest ecosystems using 454 pyrosequencing.Our aims were to disentangle the factors that correspond to WIF community composition and to investigate the links between fungal richness,taxonomically-resolved fungal identity,and microbial-mediated ecosystem functions and processes by analyzing physico-chemical wood properties,lignin-modifying enzyme activities and wood decomposition rates.Unlike fungal richness,we found significant differences in community structure between deadwood of different tree species.The composition of WIF communities was related to the physico-chemical properties of the deadwood substrates.Decomposition rates and the activities of ligninmodifying enzymes were controlled by the succession of the fungal communities and competition scenarios rather than fungal OTU richness.Our results provide further insights into links between fungal community structure and microbialmediated ecosystem functions and processes. | Björn Hoppe Witoon Purahong Tesfaye Wubet Tiemo Kahl Jürgen Bauhus Tobias Arnstadt Martin Hofrichter François Buscot Dirk Krüger | 2016 | Fungal Diversity2016,,2: | 2 |
| 3 | Capabilities of different cooking oils in prevention of cholesterol oxidation during heating显示文摘 | Xu ZM Zhang T Witoon P | 2005 | Journal of the American Oil Chemists’Society2005,82,4: | 1 |
| 4 | 显示文摘 | Witoon T Bumrungsalee S Vathavanichkul P | 2014 | Bioresource Technology2014,156,: | 1 |
| 5 | 显示文摘 | Witoon T Permsirivanich T Chareonpanich M | 2013 | Ceramics International2013,39,3: | 1 |
| 6 | Synthesis of mixed-phase uniformly infiltrated SBA-3-like in SBA-15 bimodal mesoporous silica from rice husk ash显示文摘 | Jullaphan O Witoon T Chareonpanich M | 2009 | Materials Letters2009,63,15: | 1 |
| 7 | 显示文摘 | Witoon T Chareonpanich M Limtrakul J | 2008 | Materials Let- ters2008,62,1011: | 1 |
| 8 | Synthesis of bimodal porous silica from rice husk ash via sol-gel process using chitosan as template 显示文摘 | Witoon T Chareonpanich M Limtrakul J | 2008 | Materials Letters2008,62,1011: | 1 |
| 9 | Soybean oil‐chitosan emulsion affects internal quality and shelf‐life of eggs stored at 25 and 4 °C显示文摘 | Wisdom Wardy Damir D. Torrico José A. Herrera Corredor Hong Kyoon No Xiumei Zhang Zhimin Xu Witoon Prinyawiwatkul | 2013 | Int J Food Sci Technol2013,,6: | 1 |
| 10 | Direct comparison of culture-dependent and culture-independent molecular approaches reveal the diversity of fungal endophytic communities in stems of grapevine(Vitis vinifera)显示文摘Grapevines(Vitis vinifera)are colonized by ubiquitous microorganisms known as endophytes,which may have advantageous or neutral effects without causing disease symptoms.Certain endophytes are uncultivable,so culture-independent approaches such as next generation sequencing(NGS)can help for a better understanding of their ecology and distribution.To date,there are no studies which directly link NGS results with taxa derived from a culturing approach,integrating morphological and multi-gene phylogenetic analysis of endophytes.In this study,a culture-dependent and high-resolution culture-independent approach(next generation sequencing)were used to identify endophytes in grapevine stems.In the culture-dependent approach,a total of 94 isolates were recovered from 84 of 144 healthy grapevine stem fragments(colonization rate=58.3%).The study is unique as we used subsets of combined multi-gene regions to identify the endophytes to species level.Based on each multi-gene phylogenetic analysis,28 species belong to 19 genera(Acremonium,Alternaria,Arthrinium,Ascorhizoctonia,Aspergillus,Aureobasidium,Bipolaris,Botryosphaeria,Botrytis,Chaetomium,Cladosporium,Curvularia,Hypoxylon,Lasiodiplodia,Mycosphaerella,Nigrospora,Penicillium,Phoma,Scopulariopsis)were identified.A higher number of culturable fungi were obtained from 13 year-old vines,followed by eight and three yearold vines.In the culture-independent approach,a fungal richness of 59 operational taxonomic units(OTU)was detected,being highest in 13 year-old grapevines,followed by eight and three years.Even though the cultivation approach detected lower fungal richness,the results related to stem are consistent for fungal community composition and richness.Comparison of the fungal taxa identified by the two approaches resulted in an overlap of 53%of the fungal genera.Due to interspecific variability of the sequences from NGS,in many cases the OTUs(even with the highly abundant ones)were only assignable to order,family or genus level.Incorporating multi-gene phylogenies we successfully identified many of the NGS derived OTUs with poor taxonomic information in reference databases to the genus or species levels.Hence,this study signifies the importance of applying both culture-dependent and culture-independent approaches to study the fungal endophytic community composition in Vitis vinifera.This principle could also be applied to other host species and ecosystem level studies. | Asha J.Dissanayake Witoon Purahong Tesfaye Wubet Kevin D.Hyde Wei Zhang Haiying Xu Guojun Zhang Chunyuan Fu Mei Liu Qikai Xing Xinghong Li Jiye Yan | 2018 | Fungal Diversity2018,,3: | 1 |
| 11 | Adsorption of FFA in crude catifish oil onto chitosan, activated carbon, and activa- ted earth: A Kinetics Study显示文摘 | Subramaniam S Witoon P | 2004 | JAOCS2004,81,5: | 1 |
| 12 | Characterization of calcium oxide derived from waste eggshell and its application as C02 asorbent显示文摘 | Witoon T | 2011 | Ceramics International2011,37,8: | 1 |
| 13 | Comparison of the activities of hydrophilic anthocyanins and lipophilic tocols in black rice bran against lipid oxidation显示文摘 | Xiumei Zhang Yixiao Shen Witoon Prinyawiwatkul et ol | 2013 | Food chemistry2013,141,1: | 1 |
| 14 | Mineral oil-chitosan emulsion coatings affect ouality and shelf-life of coated eggs during refrigerated and room temperature storage显示文摘 | Damir D T Hong K N Witoon P | 2011 | Journal of Food Science2011,76,4: | 1 |
| 15 | Internal quality and shelflife of eggs coated with oils from different sources显示文摘 | KYONG N R HONG K N WITOON P | 2011 | Journal of FoodScience2011,76,5: | 1 |
| 16 | Lipoxygenase activity, func- tionality, and nutrient losses in rice bran during storage 显示文摘 | Fatemeh M Ramu M R Witoon P | 2000 | Bul- letin of Louisiana State University Agricultural Center2000,870,: | 1 |
| 17 | CO 2 hydrogenation to methanol over Cu/ZnO nanocatalysts prepared via a chitosan-assisted co-precipitation method显示文摘 | Thongthai Witoon Tinnavat Permsirivanich Waleeporn Donphai Attasak Jaree Metta Chareonpanich | 2013 | Fuel Processing Technology2013,,: | 1 |
| 18 | Modeling and, sliding-mode control of friction-based object transport using two-mode Ultrasonic Excitation显示文摘 | Witoon Panusittikorn Min Cheol Lee Paul I Ro | 2004 | IEEE Transactions on Industrial Electronics2004,51,4: | 1 |
| 19 | Adsorption of FFA in Crude Catifish Oil onto Chitosan,Activated Carbon,and Activated Earth:A Kinetics Study显示文摘 | Subramaniam S Witoon P | 2004 | JAOCS2004,81,: | 1 |
| 20 | Determination of melting points,specific heat capacity and enthalpy of catfish visceral oil during the purification precees显示文摘 | Subramaniam Sathivel Witoon Prinyawiwatkul loan I | 2008 | Journal of the American Oil Chemists''society2008,85,3: | 1 |