Lignin‐carbon buffered Cu sites for clean H2 evolution coupled to lignin upgrading to jet fuel precursor

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2024-11-15 DOI:10.1002/aic.18651

Xiaofei Wang, Jinbin Liao, Xueqing Qiu, Yaxin Deng, Xuliang Lin, Yanlin Qin

{"title":"Lignin‐carbon buffered Cu sites for clean H2 evolution coupled to lignin upgrading to jet fuel precursor","authors":"Xiaofei Wang, Jinbin Liao, Xueqing Qiu, Yaxin Deng, Xuliang Lin, Yanlin Qin","doi":"10.1002/aic.18651","DOIUrl":null,"url":null,"abstract":"Solar‐driven photocatalysis is a promising strategy for clean hydrogen (H2) generation cooperated with selective organic synthesis. Lignin, rich in aromatic units and functional groups, serves as an ideal hole sacrificial agent and substrate, facilitating H2 evolution and yielding high‐value chemicals/fuels. To boost overall photocatalytic redox efficiency, thermal catalysis was further combined to enhance the transfer and activity of photo‐generated carriers. And a highly controllable Cu‐based catalyst was developed using technical lignin‐carbon as an electron buffer. The active‐pyrolyzed lignin‐carbon layer precisely regulated the crystal dispersion of Cu species on Cu/SiO2, simultaneously dynamically constructing active electron‐rich Cu0 and electron‐deficient Cuσ+ (1 < σ ≤ 2) sites. Excellent thermo‐photo redox performances were achieved, with an H2 evolution rate up to 1313.2 μmol·gcat−1·h−1 and a yield of 45.2% for C13–C16 aromatic dimers from lignin monomers. This study reveals the highly utilization of lignin in functional catalysts, as well as the efficient production of H2 and jet fuel precursors.","PeriodicalId":120,"journal":{"name":"AIChE Journal","volume":"160 1","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"AIChE Journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1002/aic.18651","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Solar‐driven photocatalysis is a promising strategy for clean hydrogen (H2) generation cooperated with selective organic synthesis. Lignin, rich in aromatic units and functional groups, serves as an ideal hole sacrificial agent and substrate, facilitating H2 evolution and yielding high‐value chemicals/fuels. To boost overall photocatalytic redox efficiency, thermal catalysis was further combined to enhance the transfer and activity of photo‐generated carriers. And a highly controllable Cu‐based catalyst was developed using technical lignin‐carbon as an electron buffer. The active‐pyrolyzed lignin‐carbon layer precisely regulated the crystal dispersion of Cu species on Cu/SiO2, simultaneously dynamically constructing active electron‐rich Cu0 and electron‐deficient Cuσ+ (1 < σ ≤ 2) sites. Excellent thermo‐photo redox performances were achieved, with an H2 evolution rate up to 1313.2 μmol·gcat−1·h−1 and a yield of 45.2% for C13–C16 aromatic dimers from lignin monomers. This study reveals the highly utilization of lignin in functional catalysts, as well as the efficient production of H2 and jet fuel precursors.

查看原文本刊更多论文

木质素-碳缓冲 Cu 位点用于清洁 H2 演化，并将木质素升级为喷气燃料前体

太阳能驱动的光催化技术是一种前景广阔的清洁制氢（H2）策略，可与选择性有机合成相结合。木质素富含芳香单元和官能团，可作为理想的空穴牺牲剂和底物，促进 H2 演化并产生高价值的化学品/燃料。为了提高整体光催化氧化还原效率，还进一步结合了热催化技术，以增强光生载流子的转移和活性。利用工业木质素碳作为电子缓冲器，开发出了一种高度可控的铜基催化剂。活性热解木质素碳层可精确调节 Cu/SiO2 上 Cu 物种的晶体分散，同时动态构建富电子的 Cu0 和缺电子的 Cuσ+ (1 < σ ≤ 2) 活性位点。该化合物具有优异的热光氧化还原性能，其 H2 进化速率高达 1313.2 μmol-gcat-1-h-1，木质素单体 C13-C16 芳香族二聚体的产率为 45.2%。这项研究揭示了木质素在功能催化剂中的高度利用率，以及高效生产 H2 和喷气燃料前体的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.