Synthesis and characterisation of SAPO-34 with high surface area

Micro & nano letters

article

Yadong Bai¹  Jiajun Zheng¹  Binbin Fan¹ 

[1] School of Chemistry and Chemical Engineering, Taiyuan University of Technology

关键词: molecular sieves;    crystallisation;    X-ray diffraction;    scanning electron microscopy;    adsorption;    pH;    thermally stimulated desorption;    nanoporous materials;    crystal growth from solution;    nanofabrication;    SAPO-34 molecular sieve;    N-[3-(trimethoxysilyl)propy]aniline;    silica source;    tetraethylammonium hydroxide;    structure directing agent;    crystallisation time;    X-ray diffraction;    crystalline SAPO-34;    scanning electron microscopy;    ammonia temperature-programmed adsorption;    acidity;    microporous surface area;    N2 adsorption;    Y5669 functionalised fumed silica;    time 60 day;   

DOI  :  10.1049/mnl.2015.0101

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Objective: Patients undergoing surgery, experience acute physiological distress in the preoperative period. Smoking addiction is a complex behavior in which environment and genetic effects play a part. In this study our aim was to compare the impact of cigarette smoking cessation verses continued smoking on preoperative HAM-A scores and anesthetic requirement Methodology: After approval by the Ethic Committee, informed consent was obtained from patients, 18- 65 years old, American Society of Anesthesiologists (ASA) physical status I-II, 120 patients scheduled for elective laparoscopic cholecystectomy were included in this prospective randomized, double-blind study. Groups were defined as Group N (n:60, patients who continued smoking in the preoperative period) and Group NS (n:60, who stopped smoking 48 hours before the operation).Only the first patient on the list were included… All patients received intravenous midazolam 0.05-0.1 mg/kg as premedication. In the preoperative period HAM-A scores were recorded while the preoperative examination was performed in the outpatient clinic and after premedication. In addition, we monitored patients with Bispectral Index Monitor (BIS) and anesthetic requirements were recorded during surgical procedure.

【 授权许可】

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