Applied Catalysis B: Environmental最新文献

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Efficient and stable CO2 to formate conversion enabled by edge-site-enriched SnS2 nanoplates 富边位SnS2纳米板实现了高效稳定的CO2到甲酸的转化
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-09 DOI: 10.1016/j.apcatb.2023.123274
Zhipeng Liu , Chang Liu , Jiawei Zhang , Suhua Mao , Xiao Liang , Hanlin Hu , Xiaoxi Huang
{"title":"Efficient and stable CO2 to formate conversion enabled by edge-site-enriched SnS2 nanoplates","authors":"Zhipeng Liu ,&nbsp;Chang Liu ,&nbsp;Jiawei Zhang ,&nbsp;Suhua Mao ,&nbsp;Xiao Liang ,&nbsp;Hanlin Hu ,&nbsp;Xiaoxi Huang","doi":"10.1016/j.apcatb.2023.123274","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.123274","url":null,"abstract":"<div><p><span>Layered materials have been investigated in many different catalytic reactions due to their excellent functionalities. In particular, understanding the anisotropic properties of layered materials is important for the design of more efficient catalysts. Herein, SnS</span><sub>2</sub> nanoflakes with abundant edge sites (E-SnS<sub>2</sub>) were synthesized and their catalytic properties towards the electrochemical CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR) were studied. Combining experimental data and computational analysis, we found that the edge sites of SnS<sub>2</sub> are more active for CO<sub>2</sub> to formate conversion compared with the basal sites. Moreover, a CO<sub>2</sub> reduction intermediates triggered activation mechanism at the edge sites is proposed, the formation of sulfur vacancies at the edges would generate more active sites for CO<sub>2</sub>RR. The as-synthesized E-SnS<sub>2</sub> shows high selectivity, activity and robust stability for at least 12 h in a flow cell under a current density of − 200 mA·cm<sup>-2</sup>. This work may provide a new perspective on rational catalyst design for CO<sub>2</sub>RR.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"341 ","pages":"Article 123274"},"PeriodicalIF":22.1,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6720078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The photocatalytic H2O2 production by metal-free photocatalysts under visible-light irradiation 可见光下无金属光催化剂光催化生产H2O2的研究
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-06 DOI: 10.1016/j.apcatb.2023.123271
Xiahong Xu , Yan Sui , Wentong Chen , Wei Huang , Xiaodan Li , Yuntong Li , Dongsheng Liu , Shuang Gao , Wenxin Wu , Changwang Pan , Hong Zhong , He-Rui Wen , Meicheng Wen
{"title":"The photocatalytic H2O2 production by metal-free photocatalysts under visible-light irradiation","authors":"Xiahong Xu ,&nbsp;Yan Sui ,&nbsp;Wentong Chen ,&nbsp;Wei Huang ,&nbsp;Xiaodan Li ,&nbsp;Yuntong Li ,&nbsp;Dongsheng Liu ,&nbsp;Shuang Gao ,&nbsp;Wenxin Wu ,&nbsp;Changwang Pan ,&nbsp;Hong Zhong ,&nbsp;He-Rui Wen ,&nbsp;Meicheng Wen","doi":"10.1016/j.apcatb.2023.123271","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.123271","url":null,"abstract":"<div><p>The photocatalytic H<sub>2</sub>O<sub>2</sub> production from H<sub>2</sub>O and O<sub>2</sub><span> over organic polymers is a promising approach to achieve solar-to-chemical energy conversion. The continuous efforts have led to rapid development of various metal-free-based photocatalysts for specific H</span><sub>2</sub>O<sub>2</sub> production, but generalizations and summarization are obviously inadequate. This review mainly focuses on the state-of-the-art development process of metal-free-based photocatalysts for photocatalytic H<sub>2</sub>O<sub>2</sub> production via combining O<sub>2</sub> reduction and H<sub>2</sub><span>O oxidation reactions under visible light irradiation. The representative research work on photocatalytic H</span><sub>2</sub>O<sub>2</sub><span> production by various metal-free-based photocatalytic systems, including graphite carbon nitride (g-C</span><sub>3</sub>N<sub>4</sub>), covalent organic frameworks (COFs), covalent triazine frameworks (CTFs) and covalent organic polymers (COPs) was highlighted. The strategies for structure and property optimization of metal-free-based photocatalysts at molecular-level have been proposed for improving the photocatalytic performance. The challenges and future directions have also been provided to guide the design and synthesis of metal-free-based photocatalytic system.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"341 ","pages":"Article 123271"},"PeriodicalIF":22.1,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"6720080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rational design of photo− /electro−catalytic systems for the transformation of plastic wastes 塑料废弃物转化光/电催化系统的合理设计
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-05 DOI: 10.1016/j.apcatb.2023.122744
Jianying Wang , Xin Li , Ting Zhang , Xufang Qian , Tianfu Wang , Yixin Zhao
{"title":"Rational design of photo− /electro−catalytic systems for the transformation of plastic wastes","authors":"Jianying Wang ,&nbsp;Xin Li ,&nbsp;Ting Zhang ,&nbsp;Xufang Qian ,&nbsp;Tianfu Wang ,&nbsp;Yixin Zhao","doi":"10.1016/j.apcatb.2023.122744","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.122744","url":null,"abstract":"<div><p>The indiscriminate disposal and inadequate treatment of plastic wastes have caused severe global environmental and ecological crisis. Economically viable and energy−efficient technologies should be explored for the transformation of plastic wastes. Photo− /electro−catalytic technologies driven by the renewable energy under mild conditions have been widely developed to transform plastic wastes into valued chemicals and fuels. This review summarizes the recent progress on design strategies of catalytic systems for the selective cleavage of chemical bonds in plastic polymer chains. The correlation between catalyst features and catalytic performance in the plastic transformation have been systematically discussed in each section. This review highlights the advantages of plastic waste transformation via sustainable photo− /electro−catalytic technologies to create a circular economy with low carbon emissions.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"332 ","pages":"Article 122744"},"PeriodicalIF":22.1,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1752483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A Ni-MoOx composite catalyst for the hydrogen oxidation reaction in anion exchange membrane fuel cell 阴离子交换膜燃料电池中氢氧化反应的Ni-MoOx复合催化剂
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-05 DOI: 10.1016/j.apcatb.2023.122740
YongKeun Kwon , Doosun Hong , Jue-Hyuk Jang , MinJoong Kim , SeKwon Oh , DongHoon Song , JeongHoon Lim , Sung Jong Yoo , EunAe Cho
{"title":"A Ni-MoOx composite catalyst for the hydrogen oxidation reaction in anion exchange membrane fuel cell","authors":"YongKeun Kwon ,&nbsp;Doosun Hong ,&nbsp;Jue-Hyuk Jang ,&nbsp;MinJoong Kim ,&nbsp;SeKwon Oh ,&nbsp;DongHoon Song ,&nbsp;JeongHoon Lim ,&nbsp;Sung Jong Yoo ,&nbsp;EunAe Cho","doi":"10.1016/j.apcatb.2023.122740","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.122740","url":null,"abstract":"<div><p><span>In developing anion exchange membrane fuel cells (AEMFCs), the sluggish hydrogen oxidation reaction<span> (HOR) under alkaline condition is one of the major challenges to be overcome. A screening process using the simple electrodeposition method suggests Ni-29Mo as the most promising composition among the prepared Ni-M (M= Co, Fe, Zn, Cr, Mo, W) and Ni-</span></span><em>x</em>Mo (<em>x</em> = 22∼33 at%) samples. Experimental analyses and theoretical computations demonstrate that the Ni-29Mo is composed of metallic nickel and molybdenum oxide (Ni-MoO<sub>x</sub>) domains and the hydrogen adsorption energy on metallic Ni is tailored in the presence of MoO<sub>2</sub> towards the optimal value. The Ni-MoO<sub>x</sub> composite catalyst shows a superior HOR activity (1.12 mA/cm<sup>2</sup> @ 20 mV<sub>RHE</sub>), outperforming carbon supported platinum (Pt/C, 1.01 mA/cm<sup>2</sup> @ 20 mV<sub>RHE</sub><span>), the best HOR catalyst. An AEMFC fabricated using Ni-29Mo nanoparticles as an anode catalyst exhibits excellent performance, approximately half of the Pt/C counterpart cell, demonstrating practical applicability of the catalyst.</span></p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"332 ","pages":"Article 122740"},"PeriodicalIF":22.1,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1752486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Exciton dissociation and transfer behavior and surface reaction mechanism in Donor–Acceptor organic semiconductor photocatalytic separation of uranium 给受体有机半导体光催化分离铀的激子解离转移行为及表面反应机理
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-05 DOI: 10.1016/j.apcatb.2023.122751
Zifan Li , Zhibin Zhang , Xiang Zhu , Cheng Meng , Zhimin Dong , Songtao Xiao , Yingcai Wang , Youqun Wang , Xiaohong Cao , Yunhai Liu
{"title":"Exciton dissociation and transfer behavior and surface reaction mechanism in Donor–Acceptor organic semiconductor photocatalytic separation of uranium","authors":"Zifan Li ,&nbsp;Zhibin Zhang ,&nbsp;Xiang Zhu ,&nbsp;Cheng Meng ,&nbsp;Zhimin Dong ,&nbsp;Songtao Xiao ,&nbsp;Yingcai Wang ,&nbsp;Youqun Wang ,&nbsp;Xiaohong Cao ,&nbsp;Yunhai Liu","doi":"10.1016/j.apcatb.2023.122751","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.122751","url":null,"abstract":"<div><p><span><span><span>Photocatalytic uranium extraction from nuclear effluent is a promising approach for avoiding environmental damage and recovering uranium resources. Here, a hollow tube-like D-A organic semiconductor<span> photocatalyst consisting of triazine (Acceptor) and carbon ring (Donnor) was synthesized via two cheap monomers, </span></span>sodium alginate and </span>melamine. The incorporation of carbon ring structure could endow g-C</span><sub>3</sub>N<sub>4</sub> with unique hollow hexagonal tube-like morphology, modulate the electronic excitation model, lower the energy for exciton dissociation, and promote the adsorption and activation of O<sub>2</sub>. Thus, the D-A photocatalyst established high efficiency of photocatalytic uranium separation under LED light and high concentration of anions and cations interference. More importantly, we propose a novel theory, that photocatalytic-induced-uranyl-coordination-reaction (PIUCR), and highlight that the formation rate and pathway of crystal nucleus is the most crucial step for the surface reaction of photocatalytic uranium separation. This study provides insights and guidelines for the in-depth understanding of the photocatalytic separation of uranium.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"332 ","pages":"Article 122751"},"PeriodicalIF":22.1,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3272517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Dual charge-accepting engineering modified AgIn5S8/CdS quantum dots for efficient photocatalytic hydrogen evolution overall H2S splitting 双电荷接受工程修饰的AgIn5S8/CdS量子点用于高效光催化析氢整体H2S分裂
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-05 DOI: 10.1016/j.apcatb.2023.122747
Anqiang Jiang , Heng Guo , Shan Yu , Fengying Zhang , Tingyu Shuai , Yubin Ke , Peng Yang , Ying Zhou
{"title":"Dual charge-accepting engineering modified AgIn5S8/CdS quantum dots for efficient photocatalytic hydrogen evolution overall H2S splitting","authors":"Anqiang Jiang ,&nbsp;Heng Guo ,&nbsp;Shan Yu ,&nbsp;Fengying Zhang ,&nbsp;Tingyu Shuai ,&nbsp;Yubin Ke ,&nbsp;Peng Yang ,&nbsp;Ying Zhou","doi":"10.1016/j.apcatb.2023.122747","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.122747","url":null,"abstract":"<div><p><span>Low charge carrier separation and transfer efficiency continues to be the major obstacle to harvest solar energy to split hydrogen sulfide (H</span><sub>2</sub>S) as hydrogen source for H<sub>2</sub> production with value-added utilization for waste by-products. Herein, we designed a Type-II core/shell AgIn<sub>5</sub>S<sub>8</sub><span>/CdS (AIS/CdS) quantum dots (QDs) photocatalyst capped with short-chain inorganic sulfide ion (S</span><sup>2−</sup><span>) ligand with dual charge-accepting engineering to promote charge carrier extraction and faster photogenerated electron transfer. Transient absorption spectroscopy analysis demonstrates that the excited electrons are fast injected into CdS shell from AIS core within 1.7 ps, instead of transferring to sub-bandgap states. Consequently, the highest photocatalytic hydrogen evolution rate of AIS/CdS QDs with S</span><sup>2-</sup> ligand is 12.74 mmol g<sup>−1</sup> h<sup>−1</sup> that is more than four times of pristine AIS core. This work offers insightful guidance on the rational design of charge-accepting engineering QDs-based photocatalysts, thereby stimulating solar to hydrogen generation and resource utilization of pollutants.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"332 ","pages":"Article 122747"},"PeriodicalIF":22.1,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3450611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rapid hydrogen adsorption-desorption at sulfur sites via an interstitial carbon strategy for efficient HER on MoS2 硫化钼上高效HER的间隙碳策略在硫位点的快速氢吸附-解吸
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-05 DOI: 10.1016/j.apcatb.2023.122750
Qingqing Zhou , Zhongyuan Wang , Huadong Yuan , Jiade Wang , Hao Hu
{"title":"Rapid hydrogen adsorption-desorption at sulfur sites via an interstitial carbon strategy for efficient HER on MoS2","authors":"Qingqing Zhou ,&nbsp;Zhongyuan Wang ,&nbsp;Huadong Yuan ,&nbsp;Jiade Wang ,&nbsp;Hao Hu","doi":"10.1016/j.apcatb.2023.122750","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.122750","url":null,"abstract":"<div><p>Molybdenum disulfide (MoS<sub>2</sub><span>), a noble-free material with plentiful unsaturated active edge sites, is expected to replace platinum catalysts for commercial electrocatalytic hydrogen production. However, efficient hydrogen adsorption-desorption processes on sulfur sites with full electron configuration still remain a challenge. Here, vertically oriented self-assembled metallic MoS</span><sub>2</sub><span> nanospheres anchored by interstitial atomic carbon (C</span><sub>ia</sub>-MoS<sub>2</sub>) are proposed to achieve a rapid hydrogen adsorption-desorption process. In 0.5 M H<sub>2</sub>SO<sub>4</sub> solution, C<sub>ia</sub>-MoS<sub>2</sub> exhibits fast kinetics (Tafel slope of 45 mV dec<sup>−1</sup> and overpotential of 87 mV at 10 mA cm<sup>−2</sup>), as well as a long-term durability over 72 h. As confirmed from X-ray absorption fine spectroscopy and density functional calculations, C<sub>ia</sub> significantly optimizes the overall HER performance by reconfiguring the charge landscape and re-splitting the energy level of surface S moiety, which provides a universal strategy for fabricating stable unsaturated 2D catalysts toward HER.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"332 ","pages":"Article 122750"},"PeriodicalIF":22.1,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"3450612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Unveiling the in-situ hydrogen intercalation in Mo2COx for promoting the alkaline hydrogen evolution reaction 揭示了Mo2COx中原位插氢促进碱性析氢反应的机理
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-05 DOI: 10.1016/j.apcatb.2023.122739
Hong Chuan Fu, Xiao Hui Chen, Bo Yang, Yuan Hao Luo, Ting Li, Xiao Hu Wang, Qing Zhang, Xiao Lin Li, Nian Bing Li, Hong Qun Luo
{"title":"Unveiling the in-situ hydrogen intercalation in Mo2COx for promoting the alkaline hydrogen evolution reaction","authors":"Hong Chuan Fu,&nbsp;Xiao Hui Chen,&nbsp;Bo Yang,&nbsp;Yuan Hao Luo,&nbsp;Ting Li,&nbsp;Xiao Hu Wang,&nbsp;Qing Zhang,&nbsp;Xiao Lin Li,&nbsp;Nian Bing Li,&nbsp;Hong Qun Luo","doi":"10.1016/j.apcatb.2023.122739","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.122739","url":null,"abstract":"<div><p>Dimolybdenum carbide (Mo<sub>2</sub>C) is an efficient electrocatalyst for the hydrogen evolution reaction (HER). However, Mo<sub>2</sub>C tends to undergo surface chemical reconstruction under reaction conditions, which presents difficulties for optimization and characterization. Here, we report an HER activated Mo<sub>2</sub>CO<sub>x</sub>–Ni(OH)<sub>2</sub><span> catalyst and demonstrate that structural transformations including the surface oxidation of Mo</span><sub>2</sub>C and the in-situ hydrogen intercalation of Mo<sub>2</sub>CO<sub>x</sub> govern the promoted HER performance. The electrochemically induced hydrogen intercalation from Mo<sub>2</sub>CO<sub>x</sub> to H<sub>x</sub>Mo<sub>2</sub>CO<sub>x</sub> was identified by in-situ cyclic voltammetry characterization, and the significant role of hydrogen intercalation in surface-mediated HER pathway has been revealed by in-situ electrochemical impedance characterization. Density functional theory calculations indicate that hydrogen intercalation enables the HER by addressing sluggish water dissociation toward fast kinetics. Overall, this work underscores the importance of tracking the structure dynamic alteration of Mo<sub>2</sub>C-based material under the reaction conditions.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"332 ","pages":"Article 122739"},"PeriodicalIF":22.1,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1752485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Heterostructure-strengthened metal-support interaction of single-atom Pd catalysts enabling efficient oxygen activation for CO and VOC oxidation 异质结构增强的单原子钯催化剂的金属-负载相互作用使CO和VOC氧化的氧活化效率提高
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-05 DOI: 10.1016/j.apcatb.2023.122753
Bin Wang , Qilei Yang , Bing Li , Hongyuan Ma , Yue Xuan , Chuan Gao , Yanjie Liang , Kaihang Zhang , Qiaowan Chang , Osvaldo Broesicke , Houlin Wang , Dong Wang , Tao Luan , Kuihua Han , Chunmei Lu , John Crittenden
{"title":"Heterostructure-strengthened metal-support interaction of single-atom Pd catalysts enabling efficient oxygen activation for CO and VOC oxidation","authors":"Bin Wang ,&nbsp;Qilei Yang ,&nbsp;Bing Li ,&nbsp;Hongyuan Ma ,&nbsp;Yue Xuan ,&nbsp;Chuan Gao ,&nbsp;Yanjie Liang ,&nbsp;Kaihang Zhang ,&nbsp;Qiaowan Chang ,&nbsp;Osvaldo Broesicke ,&nbsp;Houlin Wang ,&nbsp;Dong Wang ,&nbsp;Tao Luan ,&nbsp;Kuihua Han ,&nbsp;Chunmei Lu ,&nbsp;John Crittenden","doi":"10.1016/j.apcatb.2023.122753","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.122753","url":null,"abstract":"<div><p><span>Catalytic oxidation of air pollutants depends on the active oxygen species, which requires a deep understanding of the active sites responsible for oxygen activation. In this study, we utilized a heterostructured support (ZnMn</span><sub>2</sub>O<sub>4</sub>@MnO<sub>2</sub>) to modulate the metal-support interactions (MSIs) in single-atom Pd catalysts, achieving efficient activation of both adsorbed oxygen (O<sub>ads</sub>) and lattice oxygen (O<sub>latt</sub><span>). Specifically, the tailored MSIs induced an efficient redox pair for CO oxidation, i.e., Pd</span><sub>1</sub>O<sub>3</sub> and Pd<sub>1</sub>O<sub>5</sub>, promoting the activation of O<sub>2</sub> to O<sub>ads</sub>, which led to 90% CO conversion at room temperature and a novel “MvK-induced L-H” reaction mechanism. Moreover, the tailored MSIs induced the stretching of the Mn-O bond, facilitating the participation of O<sub>latt</sub><span> in toluene oxidation. Our results demonstrate a novel approach to modulating MSIs in single-atom catalysts (SACs) and highlight the superiority of the strong MSIs introduced by heterostructured supports for oxygen activation.</span></p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"332 ","pages":"Article 122753"},"PeriodicalIF":22.1,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"2901073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Hierarchical superhydrophilic/superaerophobic 3D porous trimetallic (Fe, Co, Ni) spinel/carbon/nickel foam for boosting oxygen evolution reaction 分级超亲水性/超疏水性3D多孔三金属(Fe, Co, Ni)尖晶石/碳/镍泡沫促进析氧反应
IF 22.1 1区 化学
Applied Catalysis B: Environmental Pub Date : 2023-09-05 DOI: 10.1016/j.apcatb.2023.122717
Liang Ma , Zengyan Wei , Chen Zhao , Xiangyu Meng , Honglei Zhang , Meixiu Song , Yaming Wang , Baoqiang Li , Xiaoxiao Huang , Chengyan Xu , Ming Feng , Peigang He , Dechang Jia , Yu Zhou , Xiaoming Duan
{"title":"Hierarchical superhydrophilic/superaerophobic 3D porous trimetallic (Fe, Co, Ni) spinel/carbon/nickel foam for boosting oxygen evolution reaction","authors":"Liang Ma ,&nbsp;Zengyan Wei ,&nbsp;Chen Zhao ,&nbsp;Xiangyu Meng ,&nbsp;Honglei Zhang ,&nbsp;Meixiu Song ,&nbsp;Yaming Wang ,&nbsp;Baoqiang Li ,&nbsp;Xiaoxiao Huang ,&nbsp;Chengyan Xu ,&nbsp;Ming Feng ,&nbsp;Peigang He ,&nbsp;Dechang Jia ,&nbsp;Yu Zhou ,&nbsp;Xiaoming Duan","doi":"10.1016/j.apcatb.2023.122717","DOIUrl":"https://doi.org/10.1016/j.apcatb.2023.122717","url":null,"abstract":"<div><p>Commercial oxygen evolution reaction catalysts are required operation under high current density to achieve rapid gas generation during electrochemical water splitting; however, oxygen bubbles readily cover active surfaces of electrodes, impeding reaction kinetics. Here, we introduce a facile, low-cost, and easy large-scale preparation strategy to synthesize trimetallic (Fe, Co, Ni) spinel/carbon/nickel foam (FeCoNiO<sub><em>x</em></sub>/C/NF) electrodes with 3D network structures, and demonstrate that oxygen bubbles can be rapidly removed from the surface of electrodes with superhydrophilic/superaerophobic properties. The resulting FeCoNiO<sub><em>x</em></sub>/C/NF electrodes exhibit a low overpotential of 221 mV with extremely low Tafel slope of 21 mV dec<sup>−1</sup> at a current density of 10 mA cm<sup>−2</sup> in 1 M KOH. At a high current density of 500 mA cm<sup>−2</sup>, FeCoNiO<sub><em>x</em></sub>/C/NF electrodes show a low overpotential of 325 mV with long-term stability for 250 h.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"332 ","pages":"Article 122717"},"PeriodicalIF":22.1,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"1752490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
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