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Solar-driven CO_(2) conversion to methane and methanol using different nanostructured Cu_(2)O-based catalysts modified with Au nanoparticles

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journal of Energy chemistry 2024年第4期91卷 287-298页

作者： joão Angelo Lima Perini Lilian D.Moura Torquato Juliana Fde Brito Gustavo A.Andolpho Mateus A.Gonçalves Leonardo D.De Angelis Lucas D.Germano Susana i.Córdoba de Torresi Teodorico C.Ramalho Maria V.Boldrin Zanoni São Paulo State University(UNESP) Institute of ChemistryRua Prof.Francisco Degni55AraraquaraSP 14800-060Brazil National institute of Alternative Technologies for Detection Toxicological Evaluation and Removal of Micropollutants and Radioactive Substances(INCT-DATREM)São Paulo State University(UNESP)Institute of ChemistryRua Prof.Francisco Degni55AraraquaraSP 14800-060Brazil Laboratory of Molecular Modelling Department of ChemistryNatural Sciences InstituteFederal University of LavrasLavrasMG 37200-900Brazil Department of chemistry Faculty of ScienceUniversity of Hradec KrálovéHradec Králové50003Czech Republic instituto de Química Universidade de São PauloAv.Prof.Lineu Prestes 74805508-080São PauloSPBrazil

This work describes the use of TiO_(2)nanotubes-based electrodes(TNT)modified with Cu_(2)O nanostructures and gold nanoparticles for the photoelectroreduction of CO_(2)to produce value-added compounds.A thin layer of polydopamine was used as both an adherent agent and an electron transfer mediator,due to itsπ-conjugated electron *** highest production yield was achieved using a TNT@PDA/Nc/Au40%electrode,with Faradaic efficiencies of 47.4%(110.5μM cm^(-2))and 27.8%(50.4μM cm^(-2))for methanol and methane,*** performance of the photoelectrodes was shown to be Cu_(2)O facet-dependent,with cubic structures leading to greater conversion of CO_(2)to methanol(43%)and methane(27%),compared to the octahedral morphology,while a higher percentage of metallic gold on the nanostructured Cu_(2)O surface was mainly important for *** functional theory(DFT)calculations supported these findings,attributing the superior photoelectrocatalytic performance of the TNT@PDA/Nc/Au40%electrode for ch4generation to the formation of an Och.intermediate bonded to Au *** using isotope-labeling and analysis by gas chromatograph-mass(GC-MS)demonstrated that13CO_(2)was the source for photoelectrocatalytic generation of13ch3OH and13ch313ch2OH.

关键词： Cu_(2)O nanocubes Photoelectrocatalysis Polydopamine CO_(2) photoelectroreduction DFT calculations

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Synthesis and Crystal Structure of ( Z)-4-( p- Bromophenylthio)-3-( p-nitrobenzoyloxy)-3-buten-2-one

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chinese journal of Structural chemistry 1999年第5期18卷 322-325页

作者：刘继德 Tamariz,jo Departmentofchemistry JingzhouTeachersCollegeHube Departmentofchemistry Jingzho

A new enone (ch 3CO C( p NO 2C 6H 4COO)=ch S C 6H 4( p Br) 5, C 17 H 12 NBrO 5S, M r =422.25) was synthesized and its crystal structure was determined by X ray diffraction method. The crystal belongs to the monoclinic system, space group P2 1/c with a=6.4121(9), b=12.804(1), c=20.998(2) , β=94.884(9)°, V=1717.1(3) 3, Z=4, D c =1.633 g/cm 3, μ (Mo Kα )=2.542 mm -1 , F( 000)=848. Final R =0.0428 and wR =0.0916 for 3335 reflections with i>2σ(i) . The title compound exists as Z isomer with p bromothiophenolate and o nitrobenzoate groups cis arranged around asymmetrical centre. This observation suggests that the substitution of thiophenolate for bromine is a stereoselective step.

关键词： enone crystal structure conformation

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CO2/ch4 separation using inside coated thin film composite hollow fiber membranes prepared by interfacial polymerization

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chinese journal of chemical Engineering 2017年第3期25卷 278-287页

作者： Eun-Sung jo Xinghai An Pravin G.ingole Won-Kil ch.i Yeong-Sung Park Hyung-Keun Lee Korea institute of Energy Research(KiER) 71-2 Jang-dongYuseong-guDaejeon 205343Republic of Korea Department of Environmental Engineering Daejeon UniversityDaejeonRepublic of Korea Department of Advanced Energy and Technology University of Science and Technology(UST)217 Gajeong-roYuseong-guDaejeon 305-350Republic of Korea

Carbon dioxide(CO_2) is greenhouse gas which originates primarily as a main combustion product of biogas and landfill gas. To separate this gas, an inside coated thin film composite(TFC) hollow fiber membrane was developed by interfacial polymerization between 1,3–cyclohexanebis–methylamine(chMA) and trimesoyl chloride(TMC). ATR-FTiR, SEM and AFM were used to characterize the active thin layer formed inside the PSf hollow fiber. The separation behavior of the chMA-TMC/PSf membrane was scrutinized by studying various effects like feed gas pressure and temperature. Furthermore, the influence of chMA concentration and TMC concentration on membrane morphology and performance were investigated. As a result, it was found that mutually the chMA concentration and TMC concentration play key roles in determining membrane morphology and performance. Moreover, the chMA-TMC/PSf composite membrane showed good CO_2/ch_4 separation performance. For CO_2/ch_4 mixture gas(30/70 by volume) test, the membrane(PD1 prepared by chMA 1.0% and TMC 0.5%) showed a CO_2 permeance of 25 GPU and the best CO_2/ch_4 selectivity of 28 at stage cut of 0.1. The high CO_2/ch_4 separation performance of chMA-TMC/PSf thin film composite membrane was mostly accredited to the thin film thickness and the properties of binary amino groups.

关键词： Thin-film composite hollow fiber membrane interfacial polymerization chMA/TMC CO2/ch4 separation

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Dual Phase Renewable Fuel Combustion in an Atmospheric Gas Turbine Burner

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journal of Thermal Science 2023年第3期32卷 1278-1291页

作者： AGWU Ogbonnaya RUNYON jon GOKTEPE Burak chONG TUNG cheng NG jo-Han GiLES Anthony VALERA-MEDiNA Agustin School of Engineering Cardiff UniversityWales CF243AAUK china-UK Low Carbon College Shanghai Jiao Tong UniversityLin'gang 201306China Faculty of Engineering and Physical Sciences University of Southampton MalaysiaIskandar Puteri 79100Malaysia

Expanding the fuel flexibility of continuous combustion systems to include multiphase fuel combustion offers additional support to combat the problem of energy security and,potentially,environmental *** this study,apart from establishing stability limits and measuring post-combustion emissions,flames generated from simultaneous combustion of biodiesel and syngas were examined using C_(2)*and ch*chemiluminescence imaging to capture changes in the reaction *** proportion of syngas in the fuel mix was varied from 0 to 30%content(by energy contribution)while maintaining a total power output of 15 *** overall equivalence ratio was held at 0.7 in cases other than for determining the flammability *** results indicate a reduction of stability limits as gas proportion in fuel blend ***,chemiluminescence imaging of the two targeted species suggest a general reduction in reaction rate as well as reaction zone area and length with increase in gas ratio in the dual phase ***,emissions performance in the context of NOxand CO was investigated as liquid-to-gas ratios were ***,the study demonstrates the feasibility,limitations and potential benefits of multiphase renewable fuel combustion in a swirl-stabilised burner.

关键词： dual fuel gas turbine multiphase combustion

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Multiscalar Geomorphometric Generalization for Soil-Landscape Modeling by Random Forest: A Case Study in the Eastern Amazon

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journal of Geographic information System 2021年第4期13卷 434-451页

作者： Cauan Ferreira Araújo Raimundo Cosme de Oliveira Junior Troy Patrick Beldini Federal University of the West of Pará Santarém Brazil Eastern Amazon Agroforestry Research Center Belém Brazil

Multiscalar topography influence on soil distribution has a complex pattern that is related to overlay of pedological processes which occurred at different times, and these driving forces are correlated with many geomorphologic scales. in this sense, the present study tested the hypothesis whether multiscale geomorphometric generalized covariables can improve pedometric modeling. To achieve this goal, this case study applied the Random Forest algorithm to a multiscale geomorphometric database to predict soil surface attributes. The study area is in phanerozoic sedimentary basins, in the Alter do chão geological formation, Eastern Amazon, Brazil. The multiscale geomorphometric generalization was applied at general and specific geomorphometric covariables, producing groups for each scale combination. The modeling was run using Random Forest for A-horizon thickness, pH, silt and sand content. For model evaluation, visual analysis of digital maps, metrics of forest structures and effect of variables on prediction were used. For evaluation of soil textural classifications, the confusion matrix with a Kappa index, and the user’s and producer’s accuracies were employed. The geomorphometry generalization tends to smooth curvatures and produces identifiable geomorphic representations at sub-watershed and watershed levels. The forest structures and effect of variables on prediction are in agreement with pedological knowledge. The multiscale geomorphometric generalized covariables improved accuracy metrics of soil surface texture classification, with the Kappa index going from 43% to 62%. Therefore, it can be argued that topography influences soil distribution at combined coarser spatial scales and is able to predict soil particle size contents in the studied watershed. Future development of the multiscale geomorphometric generalization framework could include generalization methods concerning preservation of features, landform cla

关键词： Digital Soil Mapping Upscaling Machine Learning Random Forest Algorithm Multiscale Geomorphometric Generalization

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Au、Cu、Pb、Zn在热液流体中的搬运方式:热力学模拟

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矿物学报 2013年第S2期33卷 550-551页

作者：钟日晨 joёl Brugger 陈衍景李文博北京大学造山带与地壳演化重点实验室 Tectonics Resources and Exploration (TRaX) School of Earth and Environmental Sciences University of Adelaide South Australian Museum North Terrace

热液流体是搬运Au、Cu、Pb、Zn等金属元素的最主要介质,然而其成分却相对简单,多数成矿流体可概括为H2O-NaCl-(CO2-ch4-H2S)体系。为何如此简单的流体体系可搬运数量巨大的金属元素,形成类型迥异的金属矿床。这是矿床学研究的一个基本... 详细信息

热液流体是搬运Au、Cu、Pb、Zn等金属元素的最主要介质,然而其成分却相对简单,多数成矿流体可概括为H2O-NaCl-(CO2-ch4-H2S)体系。为何如此简单的流体体系可搬运数量巨大的金属元素,形成类型迥异的金属矿床。这是矿床学研究的一个基本问题。为揭示Au、Cu、Pb、Zn等金属元素在热液流体中的搬运方式,我们在Fe-Cu-Pb-Zn-Au-S-Na-Cl-C-H-O体系内。

关键词：热液流体 Cu Au Pb Zn 搬运方式金属矿床岩浆热液矿床学矽卡岩矿床

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人为干扰下南亚热带厚壳桂种群分布格局(英文)

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生态学报 2005年第12期25卷 3289-3293页

作者：王峥峰高三红 Mary jo W.Godt 彭少麟傅声雷中国科学院华南植物园广东省数字植物园重点实验室中山大学生命科学学院 Department of Plant Biology University of Georgia Athens30602 USA

南亚热带季风常绿阔叶林是华南地区典型代表植被类型。由于人为干扰,其现存面积日益减少。为加强保护,对这一植被类型中的演替顶级种厚壳桂(C ryp tocarya ch.inensis)种群在人为干扰下的数量和分布格局进行了研究。研究地点设在广东省... 详细信息

南亚热带季风常绿阔叶林是华南地区典型代表植被类型。由于人为干扰,其现存面积日益减少。为加强保护,对这一植被类型中的演替顶级种厚壳桂(C ryp tocarya ch.inensis)种群在人为干扰下的数量和分布格局进行了研究。研究地点设在广东省广州市萝岗长龙村村边。此林为南亚热带次生季风常绿阔叶林,受当地农民的干扰很大。样方面积是50×100 m2。研究结果表明,和较少受人为干扰的种群相比,这一种群趋于随机分布,特别是小树和幼苗阶段的个体。种群数量的调查研究表明这一种群幼苗库明显不足,表明人为干扰对这一种群的更新影响较大。认为在加强保护区等建设的同时,对分散在各地点的典型植被类型要进行保护,特别是加强对周围居民的保护意识教育。

关键词：分布格局人为干扰厚壳桂生活阶段幼苗库

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稻瘟菌株ch63和TH16杂交后代毒性变异及其无毒基因组成

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中国农业科学 2005年第12期38卷 2428-2433页

作者：王艳丽 KAYE Claudia ADREiT Henri MiLLAZZO jo■lle 郑小波沈瑛 THARREAU Didier 中国水稻研究所法国国际农艺研究和发展中心南京农业大学植物保护学院/农业部病虫监测与治理重点开放实验室

报道了两个稻瘟菌株ch63和TH16的杂交后代在36个水稻品种上的致病性分离、遗传分析以及无毒基因组成的分析结果。78个子囊孢子菌株中呈现显著的致病性分离,共出现71种致病类型,在不同品种上分别出现1∶1、1∶3、3∶1、1∶7、1∶15和15∶... 详细信息

报道了两个稻瘟菌株ch63和TH16的杂交后代在36个水稻品种上的致病性分离、遗传分析以及无毒基因组成的分析结果。78个子囊孢子菌株中呈现显著的致病性分离,共出现71种致病类型,在不同品种上分别出现1∶1、1∶3、3∶1、1∶7、1∶15和15∶1等的无毒性/毒性分离,表明供试菌株对不同品种的无毒性/毒性是一个或多个基因控制的。遗传学分析结果表明,亲本菌株对不同品种的无毒性/毒性控制存在多种类型。菌株ch63对品种K59(Pi-t)、中98-18、特特普、T641、C102TTP(Pi-4)、C101TTP6、ENo.11、农虎6号、C101PKT(Pi-4a)、C105TTP-1(Pi-4)、中156和中98-19分别持有1个无毒基因;对品种1461选、6392选、麻谷泰引1号、Lemont、宫崎7号、Vandana、长香稻、青珍8号和珍优3号分别持有2个无毒基因;对于品种草笛(Pi-k)、品种20中-1、C104LAC(Pi-1)、C103TTP(Pi-1+1b)、K3(Pi-kh)、梅雨明(Pi-km)和东农363分别持有2个以上无毒基因;亲本菌株对于品种四丰43、珍龙13、C101LAC和20中-2分别持有2个无毒基因,关东51、欧244持有2个以上的无毒基因,但因亲本菌株对品种的致病型一致,难以判断控制菌株对品种非亲和性的基因来源。

关键词：稻瘟病菌杂交后代致病性分离无毒基因

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休克状态时血管运动中枢及呼吸中枢的机能状态

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生理学报 1958年第1期 1-4页

作者：余應年丁辰陈星若浙江医学院病理生理学教研组浙江医学院病理生理学教研组杭州

休克或虚脱时在神经系统高级部位中发生的位相性机能变化,已由脑电波描记法及条件反射法的研究予以证实。苏联学者甚至认为此种变化系休克或虚脱发生时之强烈的病理性刺激而诱起的“超限抑制”,而且认为这种抑制过程的发展是休克状态时... 详细信息

休克或虚脱时在神经系统高级部位中发生的位相性机能变化,已由脑电波描记法及条件反射法的研究予以证实。苏联学者甚至认为此种变化系休克或虚脱发生时之强烈的病理性刺激而诱起的“超限抑制”,而且认为这种抑制过程的发展是休克状态时血液动力

关键词：受器毫米汞柱呼吸中枢血管

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高渗葡萄糖溶液与乳酸纳溶液对後肢化学感受器的影响

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生理学报 1957年第3期 253-256页

作者：余应年丁辰陈星若浙江医学院病理生理学教研组浙江医学院病理生理学教研组杭州

動脉内輸液作為拯救休克狀態及臨終狀態的緊急措施,晚近已在臨床上廣泛地使用了,而且已經證明它是最有效的方法之一。以及等在動物實驗中皆證明了在逆行動脉輸液以恢復心血管系統和呼吸系統機能的機制中,自血管化學感受器出發的反射性... 详细信息

動脉内輸液作為拯救休克狀態及臨終狀態的緊急措施,晚近已在臨床上廣泛地使用了,而且已經證明它是最有效的方法之一。以及等在動物實驗中皆證明了在逆行動脉輸液以恢復心血管系統和呼吸系統機能的機制中,自血管化學感受器出發的反射性作用是最主要的。曾利用高滲葡萄糖,曾利用氯化鈣,及李秀琴氏等利用10—20％乳酸鈉溶液作動脉內逆行輸入來刺激血管化學感受器以提高臨終

关键词：高渗葡萄糖受器乳酸钠

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