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南京大学:福立气相色谱长时间连续运行中,基线平稳,保留时间重复性良好,确保了数据的高一致性与可比性

  • 2026-04-16 03:38:16
南京大学:福立气相色谱长时间连续运行中,基线平稳,保留时间重复性良好,确保了数据的高一致性与可比性

导读

南京大学的李朝升、冯建勇研究团队,使用福立气相色谱仪,在著名期刊《Journal of the American Chemical Society》发表《Methyl Radical Dominated Highly Selective Methane Oxidation to Liquid Oxygenates》的最新研究成果。

文章亮点

创新反应路径:•CH3主导的温和氧化机制摒弃传统依赖·OH等高活性自由基的活化方式,通过光生空穴直接活化甲烷生成•CH3,从源头上避免了对产物的过度氧化。•CH3与环境友好的O2(或其衍生物)反应,形成可控的自由基链反应,显著提升液体产物选择性。

精准催化剂设计:Pt单原子多功能协同Pt单原子不仅作为空穴捕获中心,促进电荷分离,还作为甲烷吸附与活化位点,显著降低C−H键断裂能垒。通过CO-DRIFTS、XAFS、HAADF-STEM等多种表征手段证实了Pt单原子的原子级分散与+2.4价态,明确了其电子结构与催化功能的关联。

卓越催化性能:高纪录的量子效率与产物选择性在350nm光照下, AQY高达14.14%,为目前报道的最高值之一。液体产物选择性达95%,甲醛产率为2.98 mmol g−1 h−1,显著优于多数已知光催化剂。

福立GC助力光催化甲烷氧化研究

甲烷作为天然气的主要成分,其高效、选择性转化对实现碳资源的高值化利用具有重要意义。

在本研究中,福立气相色谱为反应产物的定性与定量分析提供了关键技术支持。通过对反应液中甲醇等液态产物的精确测定,我们能够准确评估催化剂的性能,明确反应路径以·CH3为主导,有效抑制了过度氧化至CO2的副反应,为机理验证与性能优化提供了可靠数据支撑。

实验室

Trusted Partners-蒋静雯

数据可靠  灵敏度高    

在我们所开展的“甲烷光催化选择性氧化制液态含氧产物”这一颇具挑战性的研究中,产物的准确分析与定量至关重要。福立气相色谱仪在该体系中表现卓越,其出色的稳定性与高灵敏度为我们检测微量、易挥发的含氧化合物(如甲醇、甲醛、甲酸等)提供了坚实保障。尤其是在反应初期或低转化率条件下,仪器仍能清晰分离并准确定量痕量CH3OH(检测限可达ppm级别),这对我们评估催化剂的初始活性和选择性起到了关键作用。

    操作便捷   性能稳定  

在操作体验上,福立GC的人性化设计与高度自动化显著降低了使用门槛。其直观的软件界面使得方法建立、序列编辑和数据分析变得简单高效,即使课题组内新生经过短期培训也能独立完成常规测试。

程序升温和多检测器的灵活配置,很好地适应了我们反应体系中可能出现的复杂产物分布。长时间连续运行(如为期数天的稳定性测试)中,仪器基线平稳,保留时间重复性良好,确保了数据的高一致性与可比性,为我们进行反应动力学分析及催化剂长效性能评估提供了可靠依据。

以客户为中心   强大的技术护航能力

在此,我们向福立公司的销售与技术支持团队表达诚挚的谢意。其中,我们要特别感谢售后工程师童华星先生。从最初的仪器选型咨询、采购流程协调,到后期的安装跟进,童工始终展现出极高的专业素养与敬业精神。他不仅对仪器的技术参数和功能特点了如指掌,更能紧密结合我们的具体研究需求(如甲烷氧化产物的分析难点)提供有针对性的配置建议,其专业、耐心的解答为我们顺利采购最适合的机型提供了巨大帮助。

在仪器安装调试及后续使用过程中,售后及其所协调的应用支持团队也始终给予我们迅速而有力的支持。无论是初期的操作培训、色谱方法开发,还是使用中遇到的偶尔异常或疑问,他们总能第一时间响应,积极协调资源,远程或现场协助我们排查问题。即便在常规的日常询问与维护提醒中,他们也能做到细致周到,让我们倍感安心。

福立团队所体现出的这种以客户为中心的服务理念和强大的技术护航能力,不仅保障了气相色谱仪在我们实验室始终处于最佳工作状态,更成为了我们科研工作中值得信赖的合作伙伴。

色谱技术生态圈

福立仪器官方媒体矩阵

福立仪器服务管家

服务热线

400-168-6988 

关于福立仪器

浙江福立分析仪器有限公司成立于1998年,是一家专注于色谱质谱研发、生产、销售、服务的高新技术企业,是国家重点扶持的专精特新“小巨人”企业,也是国产色谱仪器领军企业,公司拥有现代化的生产基地和省级企业研究院,致力于为客户提供高效、精准、可靠的分析仪器和解决方案。

公司聚焦色谱近三十年,从色谱零部件到整机,全产业链的色谱研发布局,承担并顺利完成了科技部国家重大科学仪器专项,突破色谱关键技术,引领国产色谱技术发展迈入新的篇章。

2023年6月,苏州纳微科技股份有限公司(股票代码:SH 688690)入股福立仪器,携手打造集色谱填料、分析仪器及整体解决方案于一体的色谱质谱创新平台,双方战略合作迈入全新阶段,开启色谱技术发展新征程。

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  1. CONNECT:[ UseTime:0.000463s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000584s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.005086s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000797s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000522s ]
  6. SELECT * FROM `set` [ RunTime:0.009077s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000686s ]
  8. SELECT * FROM `article` WHERE `id` = 528831 LIMIT 1 [ RunTime:0.000551s ]
  9. UPDATE `article` SET `lasttime` = 1776961968 WHERE `id` = 528831 [ RunTime:0.004933s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.001743s ]
  11. SELECT * FROM `article` WHERE `id` < 528831 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000476s ]
  12. SELECT * FROM `article` WHERE `id` > 528831 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000374s ]
  13. SELECT * FROM `article` WHERE `id` < 528831 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001054s ]
  14. SELECT * FROM `article` WHERE `id` < 528831 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001750s ]
  15. SELECT * FROM `article` WHERE `id` < 528831 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000765s ]
0.111540s