Design and Optimization of Carbon-Based Bimetallic Catalysts for Catalytic Cracking of Tar Model Compounds

IF 3.2 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemistry - An Asian Journal Pub Date : 2026-08-16 DOI:10.1002/asia.70953

Peng He, Niyu Yao, Xiang Xu, Zheng Zeng, Liqing Li

{"title":"Design and Optimization of Carbon-Based Bimetallic Catalysts for Catalytic Cracking of Tar Model Compounds","authors":"Peng He, Niyu Yao, Xiang Xu, Zheng Zeng, Liqing Li","doi":"10.1002/asia.70953","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>Biomass tar from pyrolysis restricts the practical engineering application of biomass gasification. Carbon-based bimetallic Ni-based catalysts modified by Cu and Co promoters were synthesized to boost catalytic performance for toluene cracking. Physicochemical characterizations under two preparation atmospheres reveal that Ni-Cu and Ni-Co alloys raise surface Ni° content and inhibit metal oxidation. Uniformly dispersed tiny metal particles also increase hydrogen concentration in product gas. Experimental results show that Ni4-Cu1-H delivers excellent low-temperature activity at 600°C, while Ni4-Co1-H achieves a maximum hydrogen selectivity of 75% owing to smaller metal grains. Stability tests confirm Ni4-Cu1-H maintains the best activity after 300 min reaction. Comparative characterizations of fresh and spent catalysts clarify the anti-deactivation mechanism of bimetallic catalysts: they suppress amorphous carbon graphitization and alter carbon deposition forms, thus slowing catalyst deactivation.</p>\n </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 16","pages":""},"PeriodicalIF":3.2000,"publicationDate":"2026-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemistry - An Asian Journal","FirstCategoryId":"1","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/asia.70953","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Biomass tar from pyrolysis restricts the practical engineering application of biomass gasification. Carbon-based bimetallic Ni-based catalysts modified by Cu and Co promoters were synthesized to boost catalytic performance for toluene cracking. Physicochemical characterizations under two preparation atmospheres reveal that Ni-Cu and Ni-Co alloys raise surface Ni° content and inhibit metal oxidation. Uniformly dispersed tiny metal particles also increase hydrogen concentration in product gas. Experimental results show that Ni4-Cu1-H delivers excellent low-temperature activity at 600°C, while Ni4-Co1-H achieves a maximum hydrogen selectivity of 75% owing to smaller metal grains. Stability tests confirm Ni4-Cu1-H maintains the best activity after 300 min reaction. Comparative characterizations of fresh and spent catalysts clarify the anti-deactivation mechanism of bimetallic catalysts: they suppress amorphous carbon graphitization and alter carbon deposition forms, thus slowing catalyst deactivation.

查看原文本刊更多论文

焦油模型化合物催化裂化碳基双金属催化剂的设计与优化

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

Chemistry - An Asian Journal 化学-化学综合

CiteScore

7.00

自引率

2.40%

发文量

535

审稿时长

1.3 months

期刊介绍： Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics. Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews. A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal. Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).