Applied Catalysis B: Environment and Energy最新文献_第6页

Manganese oxide for heterogeneous Fenton treatment: Catalyst or inhibitor? 用于异相芬顿处理的氧化锰：催化剂还是抑制剂？

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-24 DOI: 10.1016/j.apcatb.2024.124531

Jianfeng Zheng, Hyun Jeong Lim, Tayler Hedtke, Jae-Hong Kim, Shuo Zhang

引用次数: 0

Sunlight-promoted CO2 electroreduction with staggered p-n heterojunction by indium-doped bismuth 3D nanoflower structure on oxidized copper foam as self-standing photoelectric cathode over a wide potential window 氧化泡沫铜上的掺铟铋三维纳米花结构作为自立光电阴极，在宽电位窗口内利用交错 p-n 异质结实现阳光促进的二氧化碳电还原

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-24 DOI: 10.1016/j.apcatb.2024.124489

Lulu Li, Bing Nan, Neng Neng Xu, Ge Bai, Ruinan He, Yuyu Liu, Jinli Qiao

{"title":"Sunlight-promoted CO2 electroreduction with staggered p-n heterojunction by indium-doped bismuth 3D nanoflower structure on oxidized copper foam as self-standing photoelectric cathode over a wide potential window","authors":"Lulu Li, Bing Nan, Neng Neng Xu, Ge Bai, Ruinan He, Yuyu Liu, Jinli Qiao","doi":"10.1016/j.apcatb.2024.124489","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124489","url":null,"abstract":"Exploiting suitable photocathodes to achieve high photocurrent and long-term endurance is still a great challenge in photoelectrocatalytic CO reduction (PEC CO) reactions. Herein, an In-doped BiO decorated oxidized copper foam (CBIO/CF) self-standing photoelectric cathode is well designed by the self-assembly process without an externally added binder. Via sunlight-promoted strategy, CBIO/CF with a unique 3D hierarchical nanoflower structure displays a superior faradaic efficiency of 90.0 % towards HCOOH over a wide potential window from −0.87 ∼ −1.17 V and reaches 97.8 % at −0.87 V with a partial current density of 14.41 mA cm. The in-situ Fourier transform infrared spectroscopy (FTIR) analysis demonstrates the abundant oxygen defects induced by In doping boost CBIO/CF absorbing substantive intermediate species related with formate generations, and porous structure accelerating mass transportation. Moreover, the well-designed staggered p-n heterojunctions of CuO and In-doped BiO on the surface of catalysts favor the generation and separation of electron/hole pairs and contribute to the photocatalytic reduction of CO under a bias voltage. This work paves the way for rational regulation of self-supporting photoelectrode for PEC CO to HCOOH with suitable conduction band valence bands and high performance and stability.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling optimal activity and mechanism of in situ Ni reduction Pr2Ni1-xZnxO4 anode for ammonia solid oxide fuel cells 揭示用于氨固体氧化物燃料电池的原位镍还原 Pr2Ni1-xZnxO4 阳极的最佳活性和机理

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-23 DOI: 10.1016/j.apcatb.2024.124522

Fulan Zhong, Xiaofeng Zhao, Huihuang Fang, Yu Luo, Shaorong Wang, Chongqi Chen, Lilong Jiang

{"title":"Unveiling optimal activity and mechanism of in situ Ni reduction Pr2Ni1-xZnxO4 anode for ammonia solid oxide fuel cells","authors":"Fulan Zhong, Xiaofeng Zhao, Huihuang Fang, Yu Luo, Shaorong Wang, Chongqi Chen, Lilong Jiang","doi":"10.1016/j.apcatb.2024.124522","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124522","url":null,"abstract":"Kinetically sluggish ammonia oxidation and interference of H competing with NH active sites will suppress the output performance of direct ammonia solid oxide fuel cell (DA-SOFC). Herein, we select Zn doped into PrNiO as precursor of PrNiZnO (PNZx) that can be destroyed and converted into PrO together with in-situ Ni reduction, realizing the redistribution of elements in reduction atmosphere. Meanwhile, the foreign Zn as a low-valent element is retained in PrO lattice due to the high segregation Gibbs free energy to form Ni/PrZnO, which aggravates the change of Pr and Pr, thus enhancing the oxygen vacancy concentration. The Zn promotes the reduction of Ni and quenches the adsorption capacity of H, alleviating the “hydrogen poisoning” behavior. As a result, the maximum powder density of single cell based on PNZ0.1 supported by YSZ electrolyte is 134 mW·cm at 800 ℃, which is more than twice higher than that of Ni/YSZ. Various characterizations reveal that the NH reaction path is the synergistic occurrence of ammonia decomposition and ammonia oxidation.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Highly efficient and durable water electrolysis via ligand modulated interfacial assembly 通过配体调制界面组装实现高效持久的水电解

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-23 DOI: 10.1016/j.apcatb.2024.124530

Xuxin Li, Mingyue Zhang, Yijiang Liu, Xiong Sun, Dan Li, Bei Liu, Mei Yang, Hongbiao Chen, Shujiang Ding, Zhiqun Lin

{"title":"Highly efficient and durable water electrolysis via ligand modulated interfacial assembly","authors":"Xuxin Li, Mingyue Zhang, Yijiang Liu, Xiong Sun, Dan Li, Bei Liu, Mei Yang, Hongbiao Chen, Shujiang Ding, Zhiqun Lin","doi":"10.1016/j.apcatb.2024.124530","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124530","url":null,"abstract":"Herein, we report a robust ligand-modulated interfacial assembly strategy for controllable metal doping to yield high-efficiency and durable bifunctional electrocatalysts of FeCoS-embedded hollow N-doped carbon (denoted H-FeCoS/NC) for electrocatalytic overall water splitting (EOWS). Specifically, the hollow Co-based layered double hydroxide (Co-LDH) is employed to render interfacial assembly of CoFe-PBA with tunable composition, morphology, and interface on Co-LDH, regulated by inorganic ligand. Subsequent sulfidation produces H-FeCoS/NC, manifesting outstanding OER/HER activities owing to favourable ligand-modulated Fe-doping, large specific surface area, well-dispersed FeCoS nanoparticles. DFT calculation reveals that ligand-modulated Fe-doping effectively promotes charge transfer, optimizes the intermediates/electrocatalyst interaction, and reduces OER/HER energy barriers, thus boosting the EOWS performance. The H-FeCoS/NC-assembled electrolyzer delivers a low cell voltage of 1.52 V and stably operates for 1000 h in alkaline medium, surpassing most non-noble-metal-based electrocatalysts. This work highlights a facile interfacial assembly route to engineer highly active electrocatalysts for high-performance and durable energy conversion and storage.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Janus cobalt sites on carbon nitride for efficient photocatalytic overall water splitting 氮化碳上的 Janus 钴位点用于高效光催化整体水分离

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-23 DOI: 10.1016/j.apcatb.2024.124527

Xiaoqing Yan, Zihao Chen, Yufei Yue, Ruijie Chai, Honghui Ou, Yang Li, Guidong Yang

{"title":"Janus cobalt sites on carbon nitride for efficient photocatalytic overall water splitting","authors":"Xiaoqing Yan, Zihao Chen, Yufei Yue, Ruijie Chai, Honghui Ou, Yang Li, Guidong Yang","doi":"10.1016/j.apcatb.2024.124527","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124527","url":null,"abstract":"Regulating the dual active sites is crucial for enhancing the carrier-directed migration efficiency and shortening mass transfer distance of intermediates, particularly in photocatalytic overall water splitting. In this paper, we adopt in situ hydrothermal coupled gas phase chemical reduction methods to synthesize janus cobalt cocatalysts on g-CN. Experimental measurement and density functional theory calculations show that the janus cobalt cocatalysts fine-tunes the local electronic structure of g-CN, which can greatly reduce energy barriers and shorten mass transfer distance of intermediates for reactions. And while the built-in electric field of CoP and CoO also further efficiently facilitates rapid directional separation of interface carriers of the cocatalysts. This study elucidates atom-level mechanisms underlying overall water splitting and offers valuable insights for rational design of high-performance catalysts for overall water splitting. As a result, the CoP/CoO@g-CN samples exhibit a remarkable enhancement in overall water splitting activity (133.2 μmol g h H and 67.2 μmol g h O), surpassing that of the CoP@g-CN and CoO@g-CN samples by 1.4 and 3.8 times, respectively.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective photocatalytic glucaric acid production from TEMPO-mediated glucose oxidation on alkalized carbon nitride 碱化氮化碳上 TEMPO 介导的葡萄糖氧化选择性光催化生产葡萄糖酸

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-23 DOI: 10.1016/j.apcatb.2024.124526

Jiu Wang, Qi Zhao, Zheng Li, Yejun Xiao, Xianwen Zhang, Na Zhong, Heng Zhao, Liquan Jing, Devis Di Tommaso, Rachel Crespo-Otero, Md Golam Kibria, Jinguang Hu

{"title":"Selective photocatalytic glucaric acid production from TEMPO-mediated glucose oxidation on alkalized carbon nitride","authors":"Jiu Wang, Qi Zhao, Zheng Li, Yejun Xiao, Xianwen Zhang, Na Zhong, Heng Zhao, Liquan Jing, Devis Di Tommaso, Rachel Crespo-Otero, Md Golam Kibria, Jinguang Hu","doi":"10.1016/j.apcatb.2024.124526","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124526","url":null,"abstract":"Biomass photorefining is a promising approach for sustainable clean energy and high-value chemical production. However, selectively converting glucose into glucaric acid, the most valuable derivative, still poses a significant challenge due to the difficulty in transforming the terminal hydroxyl group into a carboxy group. Here, we demonstrate that highly selective glucose photorefining into glucaric acid can be achieved by synergistically coupling alkalizing modification of polymeric carbon nitride (CN) with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) mediation, which promotes the oxidation of the primary alcohol group attached to the C6 site of gluconic acid. Density functional theory (DFT) calculations affirm the enhanced performance of modified CN in glucaric acid production. When medicated with TEMPO, the optimized photocatalysis achieves ∼ 100 % glucose conversion and > 30 % glucaric acid yield, setting a record for photocatalytic glucaric acid production. This work showcases the significance of combining photocatalyst modification and redox mediation for inspiring high-efficiency photocatalysis systems for biomass photorefining.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Promoting active hydrogen supply for kinetically matched tandem electrocatalytic nitrate reduction to ammonia 促进主动供氢，实现与动力学匹配的串联电催化硝酸盐还原成氨

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-23 DOI: 10.1016/j.apcatb.2024.124528

Biyu Kang, Bincheng Xu, Zhixuan Chen, Fengting Li, Ying Wang

引用次数: 0

Amphiphilic heterojunctions with atomically dispersed copper–alkynyl active units for highly efficient CO2 photoreduction 具有原子分散铜-炔基活性单元的两性异质结，可实现高效的二氧化碳光还原

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-22 DOI: 10.1016/j.apcatb.2024.124518

Fangjie Xu, Baoxin Ge, Pengyang Jiang, Xinlin Cai, Fangshu Xing, Caijin Huang

{"title":"Amphiphilic heterojunctions with atomically dispersed copper–alkynyl active units for highly efficient CO2 photoreduction","authors":"Fangjie Xu, Baoxin Ge, Pengyang Jiang, Xinlin Cai, Fangshu Xing, Caijin Huang","doi":"10.1016/j.apcatb.2024.124518","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124518","url":null,"abstract":"The efficiency of CO photoreduction is limited by slow charge kinetics and the mass transfer of hydrophobic CO and HO over the photocatalyst. Herein, we present a copper–alkynyl bond coordination polymer (CA-CP) with atomically-dispersed copper–alkynyl units (ADCAUs). By incorporating hydrophobic CA-CP with hydrophilic iodine vacancy-rich bismuth oxyhalides (I-BX), we construct amphiphilic heterojunction photocatalysts (CA-CP/I-BX) for visible-light-driven CO photoreduction. CA-CP/I-BX achieves excellent stability, 100 % CO selectivity and a CO-evolution rate of 157.6 μmol g h coupled with O releasing. Experimental and theoretical calculations elucidate that the ADCAUs favor adsorption and activation of CO, and have high CO selectivity. Moreover, the amphiphilic janus structure not only ensures the spatial synergy effect of CO reduction and HO oxidation, but also promotes charge separation and proton feeding, boosting CO photoreduction activity. This work develops Cu–alkynyl coordination polymer photocatalysts with ADCAUs and provides insights into hydrophobic–hydrophilic biphasic photocatalysts for synergistic CO reduction and HO oxidation.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalytic production of δ-valerolactone (DVL) from biobased 2-hydroxytetrahydropyran (HTHP) – Combined experimental and modeling study 从生物基 2-hydroxytetrahydropyran (HTHP) 催化生产 δ-valerolactone (DVL) - 实验与模型相结合的研究

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-22 DOI: 10.1016/j.apcatb.2024.124519

Raka G. Dastidar, Javier E. Chavarrio, Zhen Jiang, Daniel J. McClelland, Manos Mavrikakis, George W. Huber

引用次数: 0

Novel discrete architecture for quantum dots modified ultrathin hollow nanotube Bi2Sn2O7/Bi4O5I2 S-scheme heterojunction for ultra-efficient photocatalytic degradation of bisphenol A 用于超高效光催化降解双酚 A 的量子点修饰超薄中空纳米管 Bi2Sn2O7/Bi4O5I2 S 型异质结的新型离散结构

Applied Catalysis B: Environment and Energy Pub Date : 2024-08-22 DOI: 10.1016/j.apcatb.2024.124517

Huizhong Wu, Jiana Jing, ShaSha Li, Shuaishuai Li, Jingyang Liu, Ruiheng Liang, Yican Zhang, Zehua Xia, Minghua Zhou

{"title":"Novel discrete architecture for quantum dots modified ultrathin hollow nanotube Bi2Sn2O7/Bi4O5I2 S-scheme heterojunction for ultra-efficient photocatalytic degradation of bisphenol A","authors":"Huizhong Wu, Jiana Jing, ShaSha Li, Shuaishuai Li, Jingyang Liu, Ruiheng Liang, Yican Zhang, Zehua Xia, Minghua Zhou","doi":"10.1016/j.apcatb.2024.124517","DOIUrl":"https://doi.org/10.1016/j.apcatb.2024.124517","url":null,"abstract":"Designing and constructing novel discrete architecture for quantum dots modified ultrathin hollow nanotube BiSnO/BiOI S-scheme heterojunctions for the first time in this work is an ideal strategy to improve the photocatalytic activity. As expected, the BiSnO/BiOI heterojunction exhibited outstanding performance of degradation bisphenol A (BPA), the rate constant of BiSnO/BiOI heterojunction was 1.7 and 41.8 times higher than that of BiOI and BiSnO, respectively. The promoted activity could be attributed to the spatial separation of photogenerated carriers as well as redox reaction sites due to the discrete structure, and the enhanced charge separation due to the S-scheme mechanism via Bi-O channels as derived from DFT calculations. Furthermore, BiSnO/BiOI heterojunction exhibited unprecedented ultra-efficient in BPA degradation compared to other published Bi-based catalysts, and excellent performance under actual sunlight contributes to its prospective practical application. This strategy affords a novel approach for fabricating discrete S-scheme heterojunctions photocatalysts with high-efficiency, strong-stable, and sustainable.","PeriodicalId":516528,"journal":{"name":"Applied Catalysis B: Environment and Energy","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0