Jiahui Li, Peng Huang, Zhijie Zhang, Cuihua Tian, Yu Liao, Tai Yang, Yan Qing, Yiqiang Wu
{"title":"Encapsulating Ru doped Co/Co2P nanoparticles into delignified and TEMPO oxidized wood carbon enabling efficient pH-universal hydrogen evolution reaction","authors":"Jiahui Li, Peng Huang, Zhijie Zhang, Cuihua Tian, Yu Liao, Tai Yang, Yan Qing, Yiqiang Wu","doi":"10.1016/j.jechem.2024.12.059","DOIUrl":"10.1016/j.jechem.2024.12.059","url":null,"abstract":"<div><div>High-performance catalyst is significant for the sustainable hydrogen (H<sub>2</sub>) production by electrocatalytic water splitting. Optimizing porous structure and active groups of substrate can promote the interaction of substrate and active metal particles, enabling excellent catalytic properties and stability. Herein, the optimization strategy of delignification and 2,2,6,6-tetramethylpyperidine-1-oxyl (TEMPO) oxidization was developed to modify the porous structure and active groups of wood substrate, and Ru doped Co/Co<sub>2</sub>P (Ru-Co/Co<sub>2</sub>P) nanoparticles were encapsulated into the optimized wood carbon substrate (Ru-Co/Co<sub>2</sub>P@TDCW) for the efficient pH-universal hydrogen evolution reaction (HER). The nanopore and carboxyl groups were produced by delignification and TEMPO oxidation, which accelerated the dispersion and deposition of Ru-Co/Co<sub>2</sub>P nanoparticles. The RuCo alloy and RuCoP nanoparticles were produced with the doping of Ru, and more Ru-Co/Co<sub>2</sub>P nanoparticles were anchored by the delignified and TEMPO oxidized wood carbon (TDCW). As anticipated, the Ru-Co/Co<sub>2</sub>P@TDCW catalyst exhibited excellent pH-universal HER activity, and only 16.6, 93, and 43 mV of overpotentials were required to deliver the current density of 50 mA cm<sup>−2</sup> in alkaline, neutral, and acidic electrolytes, outperforming the noble Pt/C/TDCW catalyst significantly. In addition, Ru-Co/Co<sub>2</sub>P@TDCW catalyst presented excellent stability for more than 600 h working at 100 mA cm<sup>−2</sup> in alkaline solution (1.0 M KOH). Density function theory (DFT) results revealed that energy barriers for the dissociation of H<sub>2</sub>O and the formation of H<sub>2</sub> were decreased by the doping of Ru, and the conductivity and efficiency of electron migration were also enhanced. This work demonstrated a strategy to optimize the structure and properties of wood carbon substrate, providing a promising strategy to synthesize high-efficiency catalyst for H<sub>2</sub> production.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 452-461"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139152","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}
Menglu Lu, Tianqi Yang, Wenkui Zhang, Yang Xia, Xinping He, Xinhui Xia, Yongping Gan, Hui Huang, Jun Zhang
{"title":"Hydrogen-bond enhanced urea-glycerol eutectic electrolyte to boost low-cost and long-lifespan aqueous sodium-ion batteries","authors":"Menglu Lu, Tianqi Yang, Wenkui Zhang, Yang Xia, Xinping He, Xinhui Xia, Yongping Gan, Hui Huang, Jun Zhang","doi":"10.1016/j.jechem.2025.01.004","DOIUrl":"10.1016/j.jechem.2025.01.004","url":null,"abstract":"<div><div>Aqueous sodium-ion batteries (ASIBs) have garnered significant attention as promising candidates for large-scale energy storage applications. This interest is primarily due to their abundant resource availability, environmental friendliness, cost-effectiveness, and high safety. However, their electrochemical performance is limited by the thermodynamic properties of water molecules, resulting in inadequate cycling stability and insufficient specific energy density. To address these challenges, this study developed a hydrogen-bond enhanced urea-glycerol eutectic electrolyte (UGE) to expand the electrochemical stability window (ESW) of the electrolyte and suppress corresponding side reactions. The eutectic component disrupts the original hydrogen bonding network in water, creating a new, enhanced network that reduces the activity of free water and forms a uniform, dense passivation layer on the anode. As a result, the optimized composition of UGE exhibits a broad ESW of up to 3 V (−1.44 to 1.6 V vs. Ag/AgCl). The Prussian blue (PB)/UGE/NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@C full cell exhibits an exceptionally long lifespan of 10,000 cycles at 10 C. This study introduces a low-cost, ultra-long-life ASIB system, utilizing a green and economical eutectic electrolyte, which expands the use of eutectic electrolytes in aqueous batteries and opens a new research horizon for constructing efficient electrochemical energy storage and conversion.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 462-471"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138199","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}
{"title":"Intermediate-motivated charge transfer via alternate dipoles accelerating the deep redox of iodine/sulfur/molybdenum for high-performance multiple ion batteries","authors":"Chao Chen, Ruijie Li, Yun Gong","doi":"10.1016/j.jechem.2024.12.062","DOIUrl":"10.1016/j.jechem.2024.12.062","url":null,"abstract":"<div><div>Sodium-sulfur and sodium-iodine batteries are attractive due to their low cost and high capacities. However, they suffer from polysulfide/polyiodide dissolution and fast capacity decay. To solve these issues, herein, an organic species-intercalated layered MoS<sub>2</sub> with oxygen-dopant (Org-MoS<sub>2</sub>) was designed for the iodine encapsulation. The chemically-bonded S<sup>2−</sup> from the S–Mo–S layer can not only stabilize the in situ generated I<sup>+</sup> intermediate to boost the redox kinetics and deep transformations of 2I<sup>−</sup> ↔ I<sub>2</sub> ↔ 2I<sup>+</sup>, but also undergo the conversion of S<sup>2−</sup> ↔ S<sup>δ−</sup> in the high voltage range of 1.5–3.4 V without structural collapse and shuttle effect. That is owning to the I<sup>+</sup>-induced local charge and the electron reservoir of multi-valent Mo, which facilitate effective charge transfer via alternate dipoles of I<sup>δ+</sup>−<sup>δ−</sup>S<sup>δ+</sup>/<sup>δ−</sup>O<sup>δ+</sup>−<sup>δ−</sup>Mo<sup>δ+</sup>−<sup>δ−</sup>S<sup>δ+</sup> and promote the redox of I/S/Mo. Meanwhile, the incorporated organic species are transformed into an aromatic carbonaceous material with improved electron conductivity and thinner thickness in the cycling test accompanied by the exposure of more Mo–O–Mo linkages, resulting in an increasing ultrahigh capacity and outstanding long-term durability of Org-MoS<sub>2</sub>@I<sub>2</sub>.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 297-311"},"PeriodicalIF":13.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139064","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}
Weixian Li , Yi Dong , Mingchu Ran , Saisai Lin , Peng Liu , Hao Song , Jundong Yi , Chaoyang Zhu , Zhifu Qi , Chenghang Zheng , Xiao Zhang , Xiang Gao
{"title":"A machine learning framework for accelerating the development of highly efficient methanol synthesis catalysts","authors":"Weixian Li , Yi Dong , Mingchu Ran , Saisai Lin , Peng Liu , Hao Song , Jundong Yi , Chaoyang Zhu , Zhifu Qi , Chenghang Zheng , Xiao Zhang , Xiang Gao","doi":"10.1016/j.jechem.2024.12.056","DOIUrl":"10.1016/j.jechem.2024.12.056","url":null,"abstract":"<div><div>Converting CO<sub>2</sub> with green hydrogen to methanol as a carbon-neutral liquid fuel is a promising route for the long-term storage and distribution of intermittent renewable energy. Nevertheless, attaining highly efficient methanol synthesis catalysts from the vast composition space remains a significant challenge. Here we present a machine learning framework for accelerating the development of high space-time yield (STY) methanol synthesis catalysts. A database of methanol synthesis catalysts has been compiled, consisting of catalyst composition, preparation parameters, structural characteristics, reaction conditions and their corresponding catalytic performance. A methodology for constructing catalyst features based on the intrinsic physicochemical properties of the catalyst components has been developed, which significantly reduced the data dimensionality and enhanced the efficiency of machine learning operations. Two high-precision machine learning prediction models for the activities and product selectivity of catalysts were trained and obtained. Using this machine learning framework, an efficient search was achieved within the catalyst composition space, leading to the successful identification of high STY multi-element oxide methanol synthesis catalysts. Notably, the CuZnAlTi catalyst achieved high STYs of 0.49 and 0.65 g<sub>MeOH</sub>/(g<sub>catalyst</sub> h) for CO<sub>2</sub> and CO hydrogenation to methanol at 250 °C, respectively, and the STY was further increased to 2.63 g<sub>MeOH</sub>/(g<sub>catalyst</sub> h) in CO and CO<sub>2</sub> co-hydrogenation.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 372-381"},"PeriodicalIF":13.1,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143138198","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}
Chenlong Feng , Xinyuan Jiang , Guang Yang , Yi Liu , Mengyao Wang , Yufei Zhao , Huayan Zhang , Zhaojian Niu , Qiuping Zhou , Zitong Wang , Ju Xie , Yongjun He , Ming Chen , Lubin Ni , Yongge Wei , Guowang Diao
{"title":"Phenanthroline-hexasulfide-metal complex as a redox mediator in aqueous Cu-S batteries","authors":"Chenlong Feng , Xinyuan Jiang , Guang Yang , Yi Liu , Mengyao Wang , Yufei Zhao , Huayan Zhang , Zhaojian Niu , Qiuping Zhou , Zitong Wang , Ju Xie , Yongjun He , Ming Chen , Lubin Ni , Yongge Wei , Guowang Diao","doi":"10.1016/j.jechem.2024.12.054","DOIUrl":"10.1016/j.jechem.2024.12.054","url":null,"abstract":"<div><div>Aqueous Cu-S batteries (ACSBs) offer a promising energy storage solution by leveraging the unique redox properties of Cu<sup>2+</sup> ions, enabling high theoretical capacities through a four-electron transfer reaction. These advantages are coupled with inherent safety and low cost, making ACSBs a compelling alternative to traditional batteries. However, the practical application of ACSBs is hindered by the low conductivity of sulfur and the high energy barrier associated with phase transitions, which limit material utilization and reaction kinetics. Herein, we propose for the first time a multifunctional organic small-molecule polysulfide catalyst, Zn(phen)S<sub>6</sub>, and successfully convert them into nanocapsules that are homogeneously dispersed on the cathode surface, effectively increasing the catalytic active sites. Moreover, this complex undergoes reversible reactions during cycling, releasing zinc ions that form a dense protective layer on the anode during charging, effectively inhibiting dendrite growth. Meanwhile, Zn(phen)S<sub>6</sub> interacts with Cu<sup>2+</sup> ions to undergo an in-situ solid-state transformation into a novel catalyst, [Cu(phen)(H<sub>2</sub>O)<sub>2</sub>SO<sub>4</sub>]<em><sub>n</sub></em>. This catalyst not only accelerates electron transfer but also serves as an ion transport channel, significantly boosting reaction kinetics. This battery demonstrates exceptional stability, retaining 97.7% of its initial capacity after 1200 cycles at a high current density of 10 A g<sup>−1</sup>. Furthermore, it maintains an impressive capacity of 1157 mAh g<sup>−1</sup> after 1600 cycles at 20 A g<sup>−1</sup>. This work provides pivotal insights into the design and application of molecular catalysts, opening new pathways for advancing Cu-S battery technologies.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 431-441"},"PeriodicalIF":13.1,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139155","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}
Xiaozhen Huang , Zilong Zhang , Yuheng Li , Liangliang Zhang , Can Wang , Lusheng Liang , Chi Li , Chunming Liu , Zhehong Zhou , Ruidan Zhang , Yue Wang , Mingwei An , Yang Wang , Peng Gao
{"title":"Synergistic effects of push-pull resonance molecules on passivation and charge dynamics in perovskite solar cells","authors":"Xiaozhen Huang , Zilong Zhang , Yuheng Li , Liangliang Zhang , Can Wang , Lusheng Liang , Chi Li , Chunming Liu , Zhehong Zhou , Ruidan Zhang , Yue Wang , Mingwei An , Yang Wang , Peng Gao","doi":"10.1016/j.jechem.2024.12.057","DOIUrl":"10.1016/j.jechem.2024.12.057","url":null,"abstract":"<div><div>Exploring multifunctional interfacial modifiers is an effective approach to addressing interface issues in perovskite solar cells (PSCs) and improving device performance and stability. While most interfacial modifiers focus on passivating defects at the interfaces, there has been limited investigation into the relationship between molecular design and interfacial charge dynamics. This work introduces resonance molecules with a push-pull effect for interfacial modification, allowing for synergistic regulation of passivation effects and charge dynamics. Specifically, FCz-PO, which includes an electron-withdrawing fluorine atom, exhibits superior passivation but poor molecular stacking and charge extraction. In contrast, MCz-PO, featuring an electron-donating methoxy group, provides effective passivation, well-ordered molecular packing, and efficient charge extraction and transport. Consequently, PSCs using MCz-PO achieve high power conversion efficiency (PCE) of 24.74% and excellent operational stability. This study suggests that resonance structures can be an effective molecular design strategy for developing interfacial modifiers with both strong passivation capabilities and well-regulated charge dynamics.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 422-430"},"PeriodicalIF":13.1,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139154","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}
Siru Guo , Cenqi Yan , Hongxiang Li , Jiayuan Zhu , Yingcong Zheng , Qianqian Qi , Xue Yan , Hailin Yu , Yufei Gong , Jiayu Wang , Jiaqiang Qin , Lei Meng , Yu Chen , Yongfang Li , Pei Cheng
{"title":"Sequentially deposited organic photovoltaics via self-solvent vapor annealing","authors":"Siru Guo , Cenqi Yan , Hongxiang Li , Jiayuan Zhu , Yingcong Zheng , Qianqian Qi , Xue Yan , Hailin Yu , Yufei Gong , Jiayu Wang , Jiaqiang Qin , Lei Meng , Yu Chen , Yongfang Li , Pei Cheng","doi":"10.1016/j.jechem.2024.12.055","DOIUrl":"10.1016/j.jechem.2024.12.055","url":null,"abstract":"<div><div>Morphological control is recognized as a pivotal factor in developing high-performing solution-processed organic photovoltaics (OPVs). The essence of achieving optimal morphology in a sequentially deposited active layer lies in the precise modulation of the micro-morphology of the donor phase, encompassing molecular arrangement, orientation, and crystalline structure. The micro-morphology of the polymer donor layer plays a significant role in determining the vertical composition distribution and the adequacy of the donor/acceptor (D/A) interfaces. In this work, self-solvent vapor annealing (S-SVA) is employed to meticulously engineer the π-π stacking and crystalline domains of polymer donor PM6. This is accomplished by precisely adjusting the evaporation kinetics of the self-solvent and leveraging the swelling effect induced by residual self-solvents, thereby enhancing the self-assembly of PM6 molecules. The resultant improvements in π-π stacking and coherence length have led to efficient charge transport. These refinements have translated into a power conversion efficiency of 18.2%, accompanied by an open-circuit voltage of 0.886 V, a short-circuit current density of 25.9 mA cm<sup>−2</sup>, and a fill factor of 79.4%. The straightforward yet impactful method not only enhances film crystallinity and device performance but also holds broad application potential.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 397-403"},"PeriodicalIF":13.1,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139162","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}
Tao Zhao , Yunzhen Jia , Qiang Fang , Runxin Du , Genyan Hao , Wenqing Sun , Guang Liu , Dazhong Zhong , Jinping Li , Qiang Zhao
{"title":"Amorphous-rich RuMnOx aerogel with weakened Ru–O covalency for efficient acidic water oxidation","authors":"Tao Zhao , Yunzhen Jia , Qiang Fang , Runxin Du , Genyan Hao , Wenqing Sun , Guang Liu , Dazhong Zhong , Jinping Li , Qiang Zhao","doi":"10.1016/j.jechem.2024.12.053","DOIUrl":"10.1016/j.jechem.2024.12.053","url":null,"abstract":"<div><div>Ruthenium dioxide (RuO<sub>2</sub>) is one of the most promising acidic oxygen evolution reaction (OER) catalysts to replace the expensive and prevalent iridium (Ir)-based materials. However, the lattice oxygen oxidation induced Ru dissolution during OER compromises the activity and stability. Amorphous materials have been identified as a viable strategy to promote the stability of RuO<sub>2</sub> in acidic OER applications. This study reported a nanoporous amorphous-rich RuMnO<em><sub>x</sub></em> (A-RuMnO<em><sub>x</sub></em>) aerogel for efficient and stable acidic OER. Compared with highly crystalline RuMnO<em><sub>x</sub></em>, the weakened Ru–O covalency of A-RuMnO<em><sub>x</sub></em> by forming amorphous structure is favorable to inhibiting the oxidation of lattice oxygen. Meanwhile, this also optimizes the electronic structure of Ru sites from overoxidation and reduces the reaction energy barrier of the rate-determining step. As a result, A-RuMnO<em><sub>x</sub></em> aerogel exhibits an ultra-low overpotential of 145 mV at 10 mA cm<sup>−2</sup> and durability exceeding 100 h, as well as high mass activity up to 153 mA mg<sup>−1</sup><sub>Ru</sub> at 1.5 V vs. reversible hydrogen electrode (RHE). This work provides valuable guidance for preparing highly active and stable Ru-based catalysts for acidic OER.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 414-421"},"PeriodicalIF":13.1,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139153","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}
{"title":"Corrigendum to “Inhibiting interfacial transport loss for efficient organic nonfullerene solar cells and photodetectors” [J. Energy Chem. 99 (2024) 165–171]","authors":"Jijiao Huang , Bin Li , Yuxin Kong , Jianyu Yuan","doi":"10.1016/j.jechem.2025.01.001","DOIUrl":"10.1016/j.jechem.2025.01.001","url":null,"abstract":"","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Page 146"},"PeriodicalIF":13.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139040","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}
Mingdan Wang , Pengzuo Chen , Huigang Wang , Yanying Zhao
{"title":"Heterogeneous β-Co(OH)2/Cu2(OH)3Cl bifunctional electrocatalyst for superior concurrent conversion of glycerol and nitrite","authors":"Mingdan Wang , Pengzuo Chen , Huigang Wang , Yanying Zhao","doi":"10.1016/j.jechem.2024.12.047","DOIUrl":"10.1016/j.jechem.2024.12.047","url":null,"abstract":"<div><div>The electrochemical biomass valorization of industrial by-products or pollutants using renewable electricity offers significant promise for carbon neutrality. However, the huge challenges still exist in the development of efficient bifunctional electrocatalysts. Herein, we put forward a high-efficiency co-electrolysis system by coupling the nitrite reduction reaction (NO<sub>2</sub>RR) and the glycerol oxidation reaction (GOR) over a novel heterogeneous β-Co(OH)<sub>2</sub>/Cu<sub>2</sub>(OH)<sub>3</sub>Cl catalyst. The β-Co(OH)<sub>2</sub>/Cu<sub>2</sub>(OH)<sub>3</sub>Cl shows excellent bifunctional performance with high Faradaic efficiencies of formate (90.1%) and NH<sub>3</sub> (91.9%) at cell voltage of 1.5 V, high yield rate of formate (89.6 mg h<sup>−1</sup> cm<sup>−2</sup>) and NH<sub>3</sub> (36.07 mg h<sup>−1</sup> cm<sup>−2</sup>) at cell voltage of 1.9 V, and superior stability in an anion exchange membrane co-electrolyzer. The in-situ Raman result confirms the unique Co/Cu-based bimetallic synergistic sites of β-Co(OH)<sub>2</sub>/Cu<sub>2</sub>(OH)<sub>3</sub>Cl towards superior GOR performance, while the operando Fourier transform infrared spectroscopy demonstrates the improved protonation kinetics of key intermediates and optimized water dissociation ability of β-Co(OH)<sub>2</sub>/Cu<sub>2</sub>(OH)<sub>3</sub>Cl for high NO<sub>2</sub>RR activity. Our work illuminates alternative avenues to exploit the innovative and energy-saving technology for the co-production of high-added chemicals.</div></div>","PeriodicalId":15728,"journal":{"name":"Journal of Energy Chemistry","volume":"104 ","pages":"Pages 185-193"},"PeriodicalIF":13.1,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143139060","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}