Results 31 to 40 of about 46,291 (210)
Structure and Performance of Cu-Fe Bimodal Support for Higher Alcohol Syntheses [PDF]
, 2012 Copper-iron modified bimodal support (M) with different mass fractions of Cu and Fe elements were prepared by an ultrasonic impregnation method. The catalytic performance for higher alcohol syntheses (HAS) was investigated in a fixed-bed flow reactor ...
Ding Ming-Yue +3 more
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Optimizing CuO on 3D Ordered Macroporous CeO2 for CO Oxidation in Rich Hydrogen
Rare Metals, EarlyView.ABSTRACT CO preferential oxidation (CO‐PROX) in rich H2 is considered a feasible strategy to solve CO poisoning for fuel cells, but obtaining good activity at low temperatures is still a challenge. Herein, three‐dimensional ordered macroporous (3DOM) CuO/CeO2 catalysts were fabricated by a templating approach, with the metal–support interaction (MSI ...
Xiaohua Chen +7 more
wiley +1 more source
Rare Metals, EarlyView.ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi +7 more
wiley +1 more source
Gaoya dianqi, 2013 笔者结合吸附剂的吸附原理,搭建了吸附剂试验平台,设计了试验流程,完成了大量试验,旨在探索设备中吸附剂对气体分解产物定量检测结果的影响。文中主要研究了吸附剂对分解产物的吸附影响,通过试验研究,确定了影响SF6电气设备中分解产物检测结果的主要因素,包括容器材质、吸附剂种类、吸附剂用量、吸附剂安装位置等,并比较了相同条件下各种气体分解产物的吸附速率。文中结论对通过分解产物检测判断开关设备运行状况有重要指导意义。
苏镇西, 赵也
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Shuitu Baochi Xuebao, 2020 土壤吸附可溶性有机碳（DOC）对土壤有机碳的循环转化有重要影响。为进一步明确田间实际情况下盐碱水田土壤对DOC的吸附规律，选取吉林西部不同盐碱程度的5块水田土壤（P1、P2、P3、P4和P5），采用室内模拟试验，在静止条件下培养70天，模拟研究了土壤在自然状态下对不同浓度DOC的吸附特征，分析了理化性质对DOC最大累积吸附量的影响。结果表明：土壤对DOC的吸附速率在试验初期较快，然后逐渐减弱并达到平衡，Elovich方程可描述土壤对DOC的动力学吸附特征，且适用于土壤对不同浓度DOC的吸附 ...
汤洁, 宫志宇, 王静静, 曲云柯
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吸附法脱除花生油中苯并（a）芘的效果研究Effect of removing benzo(a)pyrene from peanut oil by adsorption
Zhongguo youzhi, 2022 为了降低花生油中的苯并（a）芘含量，同时兼顾花生油色泽，采用活性炭和活性白土复合吸附剂对花生油中苯并（a）芘进行吸附脱除，通过单因素实验研究了活性炭种类、复合吸附剂添加量、复合吸附剂配比、吸附温度和吸附时间对花生油中苯并（a）芘脱除效果的影响，并采用正交实验对吸附工艺条件进行优化。结果表明：活性白土和FC1X活性炭复合对花生油中的苯并（a）芘具有最好的脱除效果，最优工艺条件为复合吸附剂添加量2%、活性白土与FC1X活性炭质量比20∶ 1、吸附时间20 min、吸附温度130 ...
于强1，姜慧1，方海飞2，王青2，宋福荣1，邢福国3，杨增龙1，于小华1 YU Qiang1, JIANG Hui1, FANG Haifei2, WANG Qing2, SONG Furong1, XING Fuguo3, YANG Zenglong1, YU Xiaohua1
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Electrochemical and in situ FTIR Studies of the interaction of CTAB with Au single crystal surfaces [PDF]
, 2015 CTAB在金纳米粒子形状控制合成中得到了广泛应用，已经利用CTAB合成出多种形状的金纳米粒子。目前CTAB在纳米粒子形状控制合成中的作用机理仍然不明确。特别是对CTAB在不同原子排列结构表面的吸附规律和分子水平反应机理亟待深入研究。本论文运用循环伏安(CV)、原位红外反射光谱、计时库仑法(chronocoulometry)，结合电化学表面热力学定量分析研究了中性介质中CTAB在Au(111)和Au(100)电极表面的吸附特性。取得的主要结果如下： 1、Au(111)电极在0 ...
陈玲
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Density Functional Study of Beta-Keto Esters Adsorption and Decomposition on Si(100) Surface (III) [PDF]
, 2009 計畫編號：NSC93-2113-M032-009研究期間：200408~200507研究經費：520,000最近, 張哲政(臺灣大學化學系) 利用static secondary ion mass spectrometry (SSIMS) temperature-programmed-reaction(TPD) 的研究, 使得在Si(100) 表面 beta-diketonate 化學氣相沉積及相關基本化學反應機制有更多瞭解。這個研究讓 他也提出 1) 包含Beta-hydrogen ...
林志興
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Rare Metals, EarlyView.ABSTRACT As a promising alternative to sluggish Li2CO3‐based Li‐CO2 electrochemistry, Li2C2O4 offers a favorable 2e− discharge pathway, yet its selective formation and reversible decomposition remain debated. Herein, we propose a nonmetal‐metal synergistic catalyst—B‐Ti coregulated layered transition metal boride Ti18B18O9/graphene (B‐Ti/TiBOG)—to ...
Qiong Peng +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2019 以法国梧桐叶片和枝条为原料在500℃下通过限氧裂解法制成生物质炭，进而采用批量吸附法探究了不同溶液初始pH、吸附时间、溶液初始Pb2+浓度对生物质炭吸附效果的影响，并通过拟合吸附动力学曲线和吸附等温线方法初步研究吸附机理。结果表明，与法国梧桐枝条炭相比，叶片炭矿质元素组成相对较为复杂，官能团种类较丰富。2种生物质炭均在吸附时间为24 h时、初始pH为5时达到最大吸附量，叶片炭的最大吸附量比法国梧桐枝条炭高25.6%。2种生物质炭的动力学吸附过程均符合准二级动力学方程，表明吸附速率主要受化学因素控制 ...
温尔刚 +5 more
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