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| 1 | 电化学氧还原反应合成H_(2)O_(2)碳基催化剂研究进展显示文摘电化学氧还原反应(ORR)合成H_(2)O_(2)是一种低成本、无污染的绿色合成方法。但是,ORR动力学缓慢,存在四电子ORR生成H2O的竞争反应,因此需要使用催化剂提升ORR的反应活性以及二电子ORR的选择性。近年来,碳基材料因价格便宜、来源广泛、调控方法多样,被广泛应用于该领域。本文首先简要介绍了电催化ORR合成H_(2)O_(2)的机理,并根据机理分析了影响电化学合成H_(2)O_(2)催化性能的关键因素。接着阐述了提升碳基ORR催化剂活性与二电子选择性的策略,并着重介绍了非金属原子掺杂碳材料和过渡金属氮碳材料。最后,总结了碳基催化剂在电化学合成H_(2)O_(2)中存在的问题和面临的挑战,对碳基催化剂在电合成H_(2)O_(2)中应用的发展趋势进行了展望。 | 何峰 张静静 陈奕君 张建 王得丽 | 2021 | 储能科学与技术2021，10，6： | 3 |
| 2 | 两电子氧还原制备过氧化氢:贵金属催化剂的几何与电子结构调控的研究进展显示文摘通过两电子氧还原反应(2e-ORR)电化学合成过氧化氢(H_(2)O_(2))的显著优势是高成本效益和环境友好性,且可以实现H_(2)O_(2)的按需现场生产,其关键技术之一是安全、经济和高效2e-ORR催化剂的开发。本文概述了利用2e-ORR制备H_(2)O_(2)贵金属基催化材料近10年的研究进展。从ORR反应机理出发,介绍了贵金属表面反应途径的调节旋钮,即*OOH结合能和O_(2)吸附模式;重点总结并举例说明了贵金属材料的几何结构和电子结构调控的方法学,强调了平衡优化催化活性和选择性的重要性;此外,简要介绍了基础实验室中2e-ORR催化剂性能的评估方法;最后,讨论了贵金属电催化合成H_(2)O_(2)的挑战和前景,特别是催化剂的稳定性和成本的客观评价。旨在为新型2e-ORR催化剂的理性设计提供参考。 | 罗二桂 唐涛 王艺 张俊明 常宇虹 胡天军 贾建峰 | 2023 | 应用化学2023，40，8： | 1 |
| 3 | Research progress on methane conversion coupling photocatalysis and thermocatalysis显示文摘Conversion of methane into value-added chemicals is of significance for methane utilization and industrial demand of primary chemical products.The barrier associated with the nonpolar structure of methane and the high bond energy C-H bond(4.57 eV)makes it difficult to realize methane conversion and activation under mild conditions.The photothermal synergetic strategy by combining photon energy and thermo energy provides an advanced philosophy to achieve efficient methane conversion.In this review,we overview the current pioneering studies of photothermal methane indirect conversion and present the methane direct conversion by the way of photocatalysis and thermocatalysis to provide a fundamental understanding of methane activation.Finally,we end this review with a discussion on the remaining challenges and perspectives of methane direct conversion over single-atom catalysts via photothermal synergetic strategy. | Zengzan Zhu Wenyi Guo Ying Zhang Chengsi Pan Jing Xu Yongfa Zhu Yang Lou | 2021 | Carbon Energy2021，3，4： | 1 |
| 4 | Recent progress of electrochemical reduction of CO_(2)by single atom catalysts显示文摘Powered by electricity from renewable energies,electrochemical reduction of CO_(2)could not only efficiently alleviate the excess emission of CO_(2),but also produce many kinds of valuable chemical feedstocks.Among various catalysts,single atom catalysts(SACs)have attracted much attention due to their high atom utilization efficiency and expressive catalytic performances.Additionally,SACs serve as an ideal platform for the investigation of complex reaction pathways and mechanisms thanks to their explicit active sites.In this review,the possible re-action pathways for the generation of various products(mainly C1 products for SACs)were firstly summarized.Then,recent progress of SACs for electrochemical reduction of CO_(2)was discussed in aspect of different central metal sites.As the most popular and efficient coordination modulation strategy,introducing heteroatom was then reviewed.Moreover,as an extension of SACs,the development of dual atom catalysts was also briefly discussed.At last,some issues and challenges regarding the SACs for CO_(2)reduction reaction(CO_(2)RR)were listed,followed by corresponding suggestions. | Tian Wang Jincheng Zhang Fuhua Li Bin Liu Sibudjing Kawi | 2022 | Materials Reports(Energy)2022，2，3： | 1 |
| 5 | Fe–N–C single atom catalysts for the electrochemical conversion of carbon,nitrogen and oxygen elements显示文摘Single atom catalysts(SACs)are constituted by isolated active metal centers,which are heterogenized on inert supports such as graphene,porous carbon,and amorphous carbon.The thermal stability,electronic properties,and catalytic activities of the metal center can be controlled via manipulating the neighboring heteroatoms such as nitrogen,oxygen,and sulfur.Due to the atomical dispersion of the active catalytic centers,the amount of metal required for catalysis can be decreased.Furthermore,new possibilities are offered to easily control the selectivity of a given transformation process as well as to improve turnover frequencies and turnover numbers of target reactions.Among them,Fe–N–C single atom catalysts own special electronic structure,and have been widely used in many fields of electrocatalysis.This review aims to summarize the synthesis of Fe–N–C based on anchoring individual iron atoms on carbon/graphene.The spin-related properties of Fe–N–C catalysts are described,including the relation between spin and electron structure of Fe–N x as well as the coupling between electronic structure of Fe–N x and electronic(orbit)of CO_(2),N_(2)and O_(2).Next,mechanistic investigations conducted to un-derstand the specific behavior of Fe–N–C catalysts are highlighted,including C,N,O electro-reduction.Finally,some issues related to the future developments of Fe–N–C are put forward and corresponding feasible solutions are offered. | Jian Huang Qiao Zhang Jie Ding Yueming Zhai | 2022 | Materials Reports(Energy)2022，2，3： | 1 |
| 6 | Ultra‐low single‐atom Pt on g‐C_(3)N_(4)for electrochemical hydrogen peroxide production显示文摘Platinum-based materials show excellent electrocatalytic performance and have good potential for use in fuel cells.However,the high cost and scarce reserves have restricted their wide application.Therefore,it is a challenging task to reduce the amount of Pt as well as ensure good catalytic performance.Herein,anchoring of Pt single atoms(0.21 wt‰)with ultra-low content on g-C_(3)N_(4)nanosheets(Pt_(0.21)/CN)has been successfully achieved.The obtained Pt_(0.21)/CN catalyst shows excellent two-electron oxygen reduction(2e-ORR)capability for hydrogen peroxide(H_(2)O_(2)).Compared with CN,its H_(2)O_(2)selectivity increased from 80%to 98%in 0.1M KOH,surpassing those in most of the reported studies.Besides,the H_(2)O_(2)production rate of Pt_(0.21)/CN is 767 mmol gcat^(-1)h-1,which is 11.1 times that of CN.This work may pave the way toward the development of an effective method for the design of noblemetal electrocatalysts with low metal loading and high catalytic activity. | Hongcen Yang Niandi Lu Juntao Zhang Rui Wang Shuhao Tian Mengjun Wang Zhixia Wang Kun Tao Fei Ma Shanglong Peng | 2023 | Carbon Energy2023，5，9： | 0 |
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