私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

相關(guān)鏈接
聯(lián)系方式
  • 通信地址:福建省福州市閩侯縣上街鎮(zhèn)福建農(nóng)林大學(xué)旗山校區(qū)
  • 郵編:350108
  • 電話:18502093393
  • 傳真:
  • Email:liaogf@fafu.edu.cn
當(dāng)前位置:> 首頁(yè) > 論文著作 > 正文
21-Achieving an unprecedented hydrogen evolution rate by solvent-exfoliated CPP-based photocatalysts
作者:Jing-Zhao Cheng, Li-Lin Liu, Guangfu Liao, Zhao-Qi Shen, Zhi-Rong Tan, Yu-Qin Xing, Xiao-Xiao Li,
關(guān)鍵字:photocatalytic
論文來(lái)源:期刊
具體來(lái)源:https://doi.org/10.1039/C9TA13514F
發(fā)表時(shí)間:2020年
How to prompt higher photocatalytic hydrogen production (PHP) efficiency from water to achieve practical applications still remains a big challenge with conjugated porous polymers (CPP)-based photocatalysts. Herein, we developed a simple and efficient cosolvent-assisted strategy to significantly improve the photocatalytic efficiency of CPP-based photocatalysts by introducing water-soluble aprotic bipolar co-solvents, including N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMAc), and N-methyl pyrrolidone (NMP). The PHP activity of the pyrene–bithiophene-based CPP (named CP-St) using ascorbic acid (AA) as a sacrificial electron donor could be excellently accelerated in the presence of an aprotic bipolar NMP solvent. CP-St dispersed in an NMP/H2O/AA mixed solution under visible-light (λ > 420 nm) irradiation without the aid of a Pt cocatalyst achieved an unprecedented hydrogen evolution rate (HER) of 190.7 mmol h?1 g?1. As a result, 6 mg CP-St amazingly produced 128.1 mL H2 (~5.72 mmol) under visible-light irradiation for only 5 h. Excitingly, by introducing 0.5 wt% Pt cocatalyst into the NMP/H2O/AA system, the HER of CP-St could be further boosted to 303.7 mmol h?1 g?1 (1.82 mmol h?1/6 mg), which represents the highest photocatalytic HER ever reported. This outstanding photocatalytic performance is mainly ascribed to the enhanced dispersity, strong hydrogen-bond interactions, and exfoliation effect by the NMP solvent. This study provides us with some new design ideas and opportunities for effectively catering to the actual hydrogen production demand.
主站蜘蛛池模板: 桂平市| 东乡族自治县| 金湖县| 惠来县| 固镇县| 楚雄市| 天津市| 九寨沟县| 淮安市| 平凉市| 兰考县| 德令哈市| 安图县| 新建县| 昭平县| 石泉县| 兴隆县| 克什克腾旗| 阜新市| 桐乡市| 辽源市| 安达市| 镇江市| 芜湖县| 手机| 依安县| 西乌珠穆沁旗| 麻江县| 中超| 郸城县| 高唐县| 樟树市| 集贤县| 镇坪县| 长沙县| 集安市| 鹿邑县| 页游| 常熟市| 康平县| 增城市|