Structures and hydrogen storage properties of RE–Mg–Ni–Mn-based AB2-type alloys prepared by casting and melt spinning
Tóm tắt
To ameliorate the electrochemical hydrogen storage properties of RE–Mg–Ni–Mn-based AB2-type electrode alloys, La element was partially substituted by Ce, and La1−xCexMgNi3.5Mn0.5 (x = 0, 0.1, 0.2, 0.3, 0.4) alloys were fabricated by casting and melt spinning. The effects of Ce content on structures and electrochemical hydrogen storage properties of prepared alloys were studied in detail. Results show that the experimental alloys consist of LaMgNi4 and LaNi5 phases. The variation of Ce content, instead of changing phase composition, results in an obvious phase abundance change in the alloys, namely the amount of LaMgNi4 and LaNi5 phases, respectively, increases and decreases with Ce content growing. Moreover, the partial substitution of Ce for La leads to that the lattice keeps constant, cell volumes clearly decreases and the alloy grains are markedly refined. The electrochemical measurements reveal that the as-cast and as-spun alloys obtain the maximum discharge capacities at the first cycling without any activation needed. With Ce content increasing, the discharge capacity of as-cast alloys visibly decreases. By contrast, the as-spun alloys have the maximum discharge capacity value. The substitution of Ce for La dramatically promotes the cycle stability. Moreover, the electrochemical kinetic performances of as-cast and as-spun alloys first increase and then decrease with Ce content increasing.
Tài liệu tham khảo
Mori D, Hirose K. Recent challenges of hydrogen storage technologies for fuel cell vehicles. Int J Hydrogen Energy. 2009;34(10):4569.
Lan R, Irvine JTS, Tao S. Ammonia and related chemicals as potential indirect hydrogen storage materials. Int J Hydrogen Energy. 2012;37(2):1482.
Kadir K, Noréus D, Yamashita I. Structure determination of AMgNi4 (where A = Ca, La, Ce, Pr, Nd and Y) in the AuBe5 type structure. J Alloys Compd. 2002;345(1–2):140.
Kohno T, Yoshida H, Kawashima F, Inaba T, Sakai I, Yamammoto M, Kanda M. Hydrogen storage properties of new ternary system alloys: La2MgNi9, La5Mg2Ni23, La3MgNi14. J Alloys Compd. 2000;311(2):L5.
Wang ZM, Zhou HY, Gu ZF, Cheng G, Yu AB. Preparation of LaMgNi4 alloy and its electrode properties. J Alloys Compd. 2004;377(1–2):L7.
Guénée L, Favre-Nicolin V, Yvon K. Synthesis, crystal structure and hydrogenation properties of the ternary compounds LaNi4Mg and NdNi4Mg. J Alloys Compd. 2003;348(1–2):129.
Liu YF, Pan HG, Gao MX, Wang QD. Advanced hydrogen storage alloys for Ni/MH rechargeable batteries. J Mater Chem. 2011;21(13):4743.
Liu YF, Cao YH, Huang L, Gao MX, Pan HG. Rare earth–Mg–Ni-based hydrogen storage alloys as negative electrode materials for Ni/MH batteries. J Alloys Compd. 2011;509(3):675.
Zhang YH, Yang T, Shang HW, Zhao C, Xu C, Zhao DL. The electrochemical hydrogen storage characteristics of as-spun nanocrystalline and amorphous Mg20Ni10−xMx (M = Cu Co, Mn; x = 0–4) alloys. Rare Met. 2014;33(6):663.
Teresiak A, Uhlemann M, Thomas J, Eckert J, Gebert A. Influence of Co and Pd on the formation of nanostructured LaMg2Ni and its hydrogen reactivity. J Alloys Compd. 2014;582:647.
Tian X, Yun GH, Wang HY, Shang T, Yao ZQ, Wei W, Liang XX. Preparation and electrochemical properties of La–Mg–Ni-based La0.75Mg0.25Ni3.3Co0.5 multiphase hydrogen storage alloy as negative material of Ni/MH battery. Int J Hydrogen Energy. 2014;39(16):8474.
Zhai TT, Yang T, Yuan ZM, Zhang YH. An investigation on electrochemical and gaseous hydrogen storage performances of as-cast La1−xPrxMgNi3.6Co0.4 (x = 0–0.4) alloys. Int J Hydrogen Energy. 2014;39(26):14282.
Yang T, Zhai TT, Yuan ZM, Bu WG, Xu S, Zhang YH. Hydrogen storage properties of LaMgNi3.6M0.4 (M = Ni, Co, Mn, Cu, Al) alloys. J Alloys Compd. 2014;617:29.
Teresiak A, Gebert A, Savyak M, Uhlemann M, Mickel C, Mattern N. In situ high temperature XRD studies of the thermal behaviour of the rapidly quenched Mg77Ni18Y5 alloy under hydrogen. J Alloys Compd. 2005;398(1–2):156.
Zhang YH, Chen LC, Yang T, Xu C, Ren HP, Zhao DL. The electrochemical hydrogen storage performances of Si-added La–Mg–Ni–Co-based A2B7-type electrode alloys. Rare Met. 2015;34(8):569.
Zhang YH, Din RU, Li BW, Ren HP, Guo SH, Wang XL. Influence of the substituting Ni with Fe on the cycle stabilities of as-cast and as-quenched La0.7Mg0.3Co0.45Ni2.55−xFex (x = 0–0.4) electrode alloys. Mater Charact. 2010;61(3):305.
Züttel A. Materials for hydrogen storage. Mater Today. 2003;6(9):24.
Wu MS, Wu HR, Wang YY, Wan CC. Surface treatment for hydrogen storage alloy of nickel/metal hydride battery. J Alloys Compd. 2000;302(1–2):248.
Orimo S, Fujii H. Materials science of Mg–Ni-based new hydrides. Appl Phys A. 2001;72(2):167.
Wu Y, Han W, Zhou SX, Lototsky MV, Solberg JK, Yartys VA. Microstructure and hydrogenation behavior of ball-milled and melt-spun Mg–10Ni–2Mn alloys. J Alloys Compd. 2008;466(1–2):176.
Zhao XY, Ding Y, Ma LQ, Wang LY, Yang M, Shen XD. Electrochemical properties of MmNi3.8Co0.75Mn0.4Al0.2 hydrogen storage alloy modified with nanocrystalline nickel. Int J Hydrogen Energy. 2008;33(22):6727.
Zheng G, Popov BN, White RE. Electrochemical determination of the diffusion coefficient of hydrogen through an LaNi4.25Al0.75 electrode in alkaline aqueous solution. J Electrochem Soc. 1995;142(8):2695.
Cui N, Luo JL. Electrochemical study of hydrogen diffusion behavior in Mg2Ni-type hydrogen storage alloy electrodes. Int J Hydrogen Energy. 1999;24(1):37.
Kuriyama N, Sakai T, Miyamura H, Uehara I, Ishikawa H, Iwasaki T. Electrochemical impedance and deterioration behavior of metal hydride electrodes. J Alloys Compd. 1993;202(1–2):183.
Ruggeri S, Roué L, Huot J, Schulz R, Aymard L, Tarascon JM. Properties of mechanically alloyed Mg–Ni–Ti ternary hydrogen storage alloys for Ni–MH batteries. J Power Sources. 2002;112(2):547.
Zhang YH, Li BW, Ren HP, Cai Y, Dong XP, Wang XL. Cycle stabilities of the La0.7Mg0.3Ni2.55−xCo0.45Mx (M = Fe, Mn, Al; x = 0, 0.1) electrode alloys prepared by casting and rapid quenching. J Alloys Compd. 2008;458(1–2):340.
Zhao DL, Zhang YH. Research progress in Mg-based hydrogen storage alloys. Rare Met. 2014;33(5):499.